There are 1694 publications affiliated with EOL.

Select a year, sub-unit, genre, and/or EOL author to view peer-reviewed publications involving authors from EOL. The author list covers EOL staff; publications they co-authored with colleagues elsewhere are included. You can browse the full list of publications and search for specific ones in OpenSky, the open-access repository of scholarly works developed and managed by NSF NCAR Library.

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Publications (Showing 100 of 1690 total )

A comparison of methods for estimating vertical wind from dropsondes

Johnson, N. E., Tang, B. H., Corbosiero, K. L., Vömel, H.. (2026). A comparison of methods for estimating vertical wind from dropsondes. Journal of Atmospheric and Oceanic Technology, doi:https://doi.org/10.1175/jtech-d-25-0126.1

Measuring vertical wind using dropsondes is useful for studying dynamic and thermodynamic processes in the atmosphere, such as those in tropical cyclones. Vertical wind can be estimated from dropsondes by finding the difference between the ...

EOL Affiliations: ISF

Publication Genre: Article

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Upper troposphere aerosol formation enhanced by monsoon lofted pollution

Williamson, C. J., Borrmann, S., Brauner, P., Brock, C. A., Campos, T., et al. (2026). Upper troposphere aerosol formation enhanced by monsoon lofted pollution. Nature Communications, doi:https://doi.org/10.1038/s41467-026-75073-x

The Asian Summer Monsoon (ASM) lofts air from polluted boundary layer regions to the upper-troposphere and lower-stratosphere. High concentrations of aerosols have been observed in ASM outflow, which influence climate by interacting with ra...

EOL Affiliations: RAF

Publication Genre: Article

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Improving monsoon precipitation forecast accuracy over arizona with GPS-PWV data assimilation

Risanto, C. B., Jr., A. F. A., Koch, S., Castro, C. L., Shohan, S., et al. (2026). Improving monsoon precipitation forecast accuracy over arizona with GPS-PWV data assimilation. Monthly Weather Review, doi:https://doi.org/10.1175/mwr-d-25-0101.1

Forecasting monsoon precipitation over Arizona is challenging, partly due to its complex terrain. The model grid structure may misrepresent topographic details, and the sparse observation network is insufficient for the initialization of th...

EOL Affiliations: RSF

Publication Genre: Article

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The influence of aged smoke on urban ozone: Aircraft measurements in chicago during the 2023 canadian wildfires

Chace, W. S., Womack, C., Ahern, A., Ball, K., Bates, K. H., et al. (2026). The influence of aged smoke on urban ozone: Aircraft measurements in chicago during the 2023 canadian wildfires. Journal of Geophysical Research: Atmospheres, doi:https://doi.org/10.1029/2026jd047060

As large wildfires become more frequent and severe in North America due to heightened fuel aridity and fire weather conditions driven by anthropogenic climate change, wildfire smoke has an increasingly important influence on air quality. Tr...

EOL Affiliations: RAF

Publication Genre: Article

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Mountain waves, downslope jets, and boundary layer interactions during the Sundowner Winds Experiment (SWEX) - IOP2

Seto, D., Carvalho, L. M. V., Duine, G., Wekker, S. D., Wang, Z., et al. (2026). Mountain waves, downslope jets, and boundary layer interactions during the Sundowner Winds Experiment (SWEX) - IOP2. Atmospheric Research, doi:https://doi.org/10.1016/j.atmosres.2026.108920

Sundowner winds are downslope windstorms occurring along the lee of the Santa Ynez Mountains (SYM) in Santa Barbara County, California, and are recognized as the region's most critical fire-weather condition. The Sundowner Winds Experiment ...

EOL Affiliations: ISF, ISFS

Publication Genre: Article

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Improved latitudinal carbon budgets from global airborne surveys

Stephens, B., Jin, Y., Sweeney, C., McKain, K., Gaubert, B., et al. (2026). Improved latitudinal carbon budgets from global airborne surveys. Proceedings of the National Academy of Sciences, doi:https://doi.org/10.1073/pnas.2523984123

Robust information on the spatial distribution of global carbon fluxes is required to project the future trajectory of carbon-climate feedback effects and atmospheric CO2 concentrations. Estimates of the latitudinal partitioning of carbon f...

EOL Affiliations: RAF

Publication Genre: Article

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A top-down view of global and regional carbon budgets from an ensemble of atmospheric inversions

Woude, A. v. d., Luijkx, I., Kok, R. d., Peters, W., Chevallier, F., et al. (2026). A top-down view of global and regional carbon budgets from an ensemble of atmospheric inversions. Global Biogeochemical Cycles, doi:https://doi.org/10.1029/2025GB008779

Atmospheric inversions provide surface CO2 flux estimates based on in situ observed atmospheric CO2 mole fractions or satellite-based column average CO2 (XCO2). Here, we provide a detailed assessment of 14 atmospheric CO2 inversions include...

EOL Affiliations: RAF

Publication Genre: Article

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A concept of a convection-cloud chamber to study aerosol-cloud-drizzle interactions

Shaw, R. A., Ovchinnikov, M., Bakri, Z., Beard, G., Bois, C., et al. (2026). A concept of a convection-cloud chamber to study aerosol-cloud-drizzle interactions. Bulletin of the American Meteorological Society (BAMS), doi:https://doi.org/10.1175/BAMS-D-25-0113.1

Understanding and quantifying the full chain of processes from aerosol activation to drizzle formation, and the associated feedbacks to the aerosol chemical and physical properties, all within a turbulent cloud are some of the toughest chal...

Publication Genre: Article

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Testing scalar field self-dualities in <mml:math xmlns:mml="http://www.w3.org/1998/math/mathml" display="inline"> <mml:mi>d</mml:mi> <mml:mo>=</mml:mo> <mml:mn>2</mml:mn> </mml:math> using a variational method

Romatschke, P., Romatschke, U.. (2026). Testing scalar field self-dualities in d = 2 using a variational method. Physical Review D, doi:https://doi.org/10.1103/25zd-4r9z

Recently, self-dualities based on saddle-point expansions have been proposed as a means to obtain qualitative nonperturbative information in scalar field theories. In this work, we test this proposition quantitatively by studying the phase ...

EOL Affiliations: RSF

Publication Genre: Article

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A novel bias correction scheme for the New York State Mesonet microwave radiometer temperature retrieval

Yu, C., Shrestha, B., Wang, J., Weckwerth, T.. (2026). A novel bias correction scheme for the New York State Mesonet microwave radiometer temperature retrieval. Journal of Atmospheric and Oceanic Technology, doi:https://doi.org/10.1175/jtech-d-25-0101.1

Temperature retrievals from ground-based microwave radiometers (MWRs) are susceptible to systematic error (bias) arising from instrumental calibration issues and retrieval algorithm errors. In this study, we developed a novel bias correctio...

EOL Affiliations: RSF

Publication Genre: Article

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Stratospheric gravity waves in three high-resolution models and AIRS satellite observations

Noble, P., Okui, H., Alexander, J., Ern, M., Hindley, N. P., et al. (2026). Stratospheric gravity waves in three high-resolution models and AIRS satellite observations. Atmospheric Chemistry and Physics, doi:https://doi.org/10.5194/acp-26-7607-2026

Advances in computational power and model development have enabled the generation of global high-resolution models. These new models can resolve a large proportion of gravity waves (GWs) explicitly, reducing reliance on subgrid parametrizat...

EOL Affiliations: RAF

Publication Genre: Article

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Strong springtime increase of ice-nucleating particle concentration in the Rocky Mountains

Lacher, L., Hallar, A. G., McCubbin, I. B., Bail, J., Froyd, K. D., et al. (2026). Strong springtime increase of ice-nucleating particle concentration in the Rocky Mountains. Atmospheric Chemistry and Physics, doi:https://doi.org/10.5194/acp-26-6703-2026

Ice nucleating particles (INPs) exert a substantial impact on radiative properties and lifetimes of mixed-phase clouds and can modulate their precipitation efficiency. Advancing our understanding of the abundance and properties of INPs is e...

EOL Affiliations: RAF

Publication Genre: Article

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Fate of isoprene peroxy radical constrains the urbanphotochemical regime

Robinson, M. A., Coggon, M. M., Bates, K. H., Peischl, J., Jernigan, C. M., et al. (2026). Fate of isoprene peroxy radical constrains the urbanphotochemical regime. Science Advances, doi:https://doi.org/10.1126/sciadv.aea6509

Declining nitrogen oxide (NOx = NO + NO2) emissions have transformed oxidation pathways in urban atmospheres, with implications for air quality. Organic peroxy radicals (RO2), key intermediates in volatile organic compound oxidation, typica...

EOL Affiliations: RAF

Publication Genre: Article

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Atmospheric oxygen constraints on Southern Ocean productivity and drivers of carbon uptake

Jin, Y., Stephens, B., Long, M., Manizza, M., Lovenduski, N. S., et al. (2026). Atmospheric oxygen constraints on Southern Ocean productivity and drivers of carbon uptake. Nature Geoscience, doi:https://doi.org/10.1038/s41561-026-01944-z

Ocean net primary production fixes dissolved carbon into organic matter while producing O2, driving the biological carbon pump that contributes to ocean CO2 uptake. The Southern Ocean plays a critical role in carbon export, yet its producti...

EOL Affiliations: RAF

Publication Genre: Article

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The Lidar Radar Open Software Environment (LROSE): An end-to-end suite of applications for radar and lidar processing

Dixon, M. J., DeHart, J., Javornik, B., Cha, T., Bell, M., et al. (2026). The Lidar Radar Open Software Environment (LROSE): An end-to-end suite of applications for radar and lidar processing. Journal of Open Research Software, doi:https://doi.org/10.5334/jors.630

The Lidar Radar Open Software Environment (LROSE) is a suite of high-performance C++ applications for format conversion, quality control, visualization, and analysis of weather radar and lidar data, developed over 30 years at the U.S. Natio...

EOL Affiliations: RSF

Publication Genre: Article

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Improving NEXRAD velocity retrievals using multi-PRT scans with regression processing

Hubbert, J. C., Schvartzman, D., Romatschke, U.. (2026). Improving NEXRAD velocity retrievals using multi-PRT scans with regression processing. Journal of Atmospheric and Oceanic Technology, doi:https://doi.org/10.1175/JTECH-D-25-0059.1

A fundamental data quality issue for pulsed Doppler radars is range–velocity ambiguity, especially at low elevation angles where weather echoes out to greater than 400 km in range need to be detected for effective long-range weather surveil...

EOL Affiliations: RSF, EOLADMIN

Publication Genre: Article

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NSF NCAR's In situ Sensing Facility measurement system during the Sundowner Wind EXperiment (SWEX)

Witte, J., Brown, W. O.J., Carvalho, L., Hock, T. F., Oncley, S., et al. (2026). NSF NCAR's In situ Sensing Facility measurement system during the Sundowner Wind EXperiment (SWEX). Geoscience Data Journal, doi:https://doi.org/10.1002/gdj3.70074

NCAR's Earth Observing Laboratory (EOL) In situ Sensing Facility (ISF) deployed all of its instrumentation in the Sundowner Wind EXperiment (SWEX) in April–May 2022 to characterize downslope winds along the southern slopes of the Santa Ynez...

EOL Affiliations: ISF, ISFS, RSF, ISFSE

Publication Genre: Article

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Global NO2 changes between 2019 and 2024 as observed by TROPOMI in urban areas and emerging hotspots

Huber, D., Kerr, G. H., Nawaz, M. O., Runkel, S., Anenberg, S. C., et al. (2026). Global NO2 changes between 2019 and 2024 as observed by TROPOMI in urban areas and emerging hotspots. Atmospheric Chemistry and Physics, doi:https://doi.org/10.5194/acp-26-3783-2026

Abstract. We present a global assessment of space-based urban nitrogen dioxide (NO2) observations from 2019 to 2024 using annual and monthly mean tropospheric vertical column densities (VCDs) from the TROPOspheric Monitoring Instrument (TRO...

EOL Affiliations: RAF

Publication Genre: Article

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Multipoint Monin–Obukhov Similarity Theory Horizontal Array Turbulence Study (M2HATS)

Tong, C., Mayor, S., Oncley, S., Roden, C., Brown, W. O.J., et al. (2026). Multipoint Monin–Obukhov Similarity Theory Horizontal Array Turbulence Study (M2HATS). Bulletin of the American Meteorological Society, doi:https://doi.org/10.1175/BAMS-D-24-0037.1

The atmospheric boundary layer (ABL) is the lowest portion of the atmosphere and plays a key role in many atmospheric processes. It is well known that the classic theory for the ABL for over 70 years, the Monin–Obukhov similarity theory, ha...

EOL Affiliations: ISF, ISFS, RSF, SND

Publication Genre: Article

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The Dynamics and Chemistry of the Summer Stratosphere (DCOTSS) project

Bowman, K. P., Keutsch, F. N., Homeyer, C. R., Sayres, D., Smith, J. B., et al. (2026). The Dynamics and Chemistry of the Summer Stratosphere (DCOTSS) project. Bulletin of the American Meteorological Society, doi:https://doi.org/10.1175/BAMS-D-24-0177.1

Overshooting storms are convective systems with updrafts that penetrate through the tropopause into the overlying stratosphere. These storms can rapidly transport a wide variety of chemical species and aerosols from the boundary layer and f...

EOL Affiliations: RAF

Publication Genre: Article

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The UCAR Africa Initiative: Recent insights, challenges, and opportunities to foster collaborative research for environmental sustainability

Tang, W., Kumar, R., Méndez, A. d. M., Ahafianyo, F., Akinsanola, A. A., et al. (2026). The UCAR Africa Initiative: Recent insights, challenges, and opportunities to foster collaborative research for environmental sustainability. Bulletin of the American Meteorological Society, doi:https://doi.org/10.1175/bams-d-24-0118.1

Africa is increasingly being exposed to the negative impacts of climate and envi- ronmental change, while having less capacity to respond compared to other continents. The vulnerability partially results from unprecedented demographic growt...

EOL Affiliations: RSF

Publication Genre: Article

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Skillful polar WRF cloud modeling of a warm winter atmospheric river at the Antarctic Peninsula

Hines, K. M., Rowe, P. M., Gorodetskaya, I. V., Chyhareva, A., Bromwich, D. H., et al. (2026). Skillful polar WRF cloud modeling of a warm winter atmospheric river at the Antarctic Peninsula. JGR-Atmospheres, doi:https://doi.org/10.1029/2024jd043239

Atmospheric rivers are episodic events that can advect relatively large quantities of moisture to Antarctica, contributing to both disproportionate precipitation and melting events. The Year of Polar Prediction, an international effort to i...

EOL Affiliations: RSF

Publication Genre: Article

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Signal processing to denoise and retrieve water vapor from multi-pulse-length lidar data

Hayman, M., Stillwell, R. A., Karboski, A., Spuler, S. M.. (2026). Signal processing to denoise and retrieve water vapor from multi-pulse-length lidar data. Atmospheric Measurement Techniques, doi:https://doi.org/10.5194/amt-19-405-2026

Abstract. Recent hardware developments for the MicroPulse DIAL enable the transmitter to switch between output pulses that are “longer” (higher pulse energy) and “shorter” (low pulse energy) in duration on a shot-to-shot basis. While the lo...

EOL Affiliations: RSF

Publication Genre: Article

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In situ balloon-borne observations of the vertical structure of relative humidity in Asian summer monsoon cirrus clouds

Peng, D., Bian, J., Li, D., Bai, Z., Vömel, H., et al. (2026). In situ balloon-borne observations of the vertical structure of relative humidity in Asian summer monsoon cirrus clouds. Geophysical Research Letters, doi:https://doi.org/10.1029/2025gl118090

The vertical structure of relative humidity within cirrus clouds in the upper troposphere remained unexplored, owing to measurement challenges. Twelve years of balloon-borne simultaneous measurements of upper tropospheric humidity and optic...

EOL Affiliations: ISF

Publication Genre: Article

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Rapid levoglucosan oxidation as a key process in biomass burning aerosol aging

Zhang, W., Xu, L., Thadiyampurath, S., Liu, X., Leong, T., et al. (2026). Rapid levoglucosan oxidation as a key process in biomass burning aerosol aging. Environmental Science & Technology, doi:https://doi.org/10.1021/acs.est.5c14970

The globally increasing wildfires significantly impact air quality, public health, and the climate. Extensive studies have focused primarily on the chemical transformation of the volatile gases and secondary aerosol formation in wildfires, ...

EOL Affiliations: RAF

Publication Genre: Article

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Enhanced radiative cooling by large aerosol particles from wildfire-driven thunderstorms

Li, Y., Dykema, J. A., Peterson, D. A., Feng, X., Shen, X., et al. (2025). Enhanced radiative cooling by large aerosol particles from wildfire-driven thunderstorms. Science Advances, doi:https://doi.org/10.1126/sciadv.adw6526

Large wildfires can generate pyrocumulonimbus (pyroCb) clouds, injecting massive quantities of smoke aerosols into the upper troposphere and lower stratosphere (UT/LS), where they persist for months and affect climate. The radiative effects...

EOL Affiliations: RAF

Publication Genre: Article

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Detecting the onset of drizzle with joint lidar and radar measurements

Vivekanandan, J., Kostinski, A., Huang, G.. (2025). Detecting the onset of drizzle with joint lidar and radar measurements. Journal of Atmospheric and Oceanic Technology, doi:https://doi.org/10.1175/jtech-d-24-0143.1

Simultaneous lidar and radar observations of clouds and precipitation are becoming more common, and to take advantage of such opportunities, radar–lidar-estimated diameter (RLED) was introduced in earlier work to describe relevant droplet s...

EOL Affiliations: RSF

Publication Genre: Article

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Insights on the spatiotemporal variability of downslope winds in coastal Santa Barbara

Orla-Barile, M. d., Carvalho, L. M., Duine, G. J., Jones, C., Wekker, S. F. D., et al. (2025). Insights on the spatiotemporal variability of downslope winds in coastal Santa Barbara. Monthly Weather Review, doi:https://doi.org/10.1175/mwr-d-25-0015.1

The coastal plain of Santa Barbara County (SBC) is bounded by the cool waters of the Pacific Ocean to the south and the west–east-oriented Santa Ynez Mountains (SYM) to the north. Downslope windstorms with a typical onset after sunset are f...

EOL Affiliations: ISF

Publication Genre: Article

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Artificial intelligence weather radar

Vivekanandan, J., Huang, G.. (2025). Artificial intelligence weather radar. Radio Science, doi:https://doi.org/10.1029/2025rs008417

The integration of artificial intelligence (AI) with weather radar systems marks a transformative advancement in remote sensing. This study introduces an AI-powered radar system that utilizes Long Short-Term Memory (LSTM) neural networks to...

EOL Affiliations: RSF

Publication Genre: Article

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A nitrate photolysis source of tropospheric HONO is incompatible with current understanding of atmospheric chemistry

Rowlinson, M. J., Carpenter, L. J., Evans, M. J., Lee, J. D., Andersen, S. T., et al. (2025). A nitrate photolysis source of tropospheric HONO is incompatible with current understanding of atmospheric chemistry. Atmospheric Chemistry and Physics, doi:https://doi.org/10.5194/acp-25-16945-2025

Abstract. Recent observations of nitrous acid (HONO) in the remote troposphere show much higher concentrations than can be explained through known sources, with important implications for air quality and climate. Laboratory evidence and mod...

EOL Affiliations: RAF

Publication Genre: Article

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Mixed layer height retrievals using MicroPulse Differential Absorption Lidar

Colberg, L., Repasky, K. S., Hayman, M., Stillwell, R. A., Spuler, S. M.. (2025). Mixed layer height retrievals using MicroPulse Differential Absorption Lidar. Atmospheric Measurement Techniques, doi:https://doi.org/10.5194/amt-18-6069-2025

Abstract. Accurate measurement of the mixed layer height (MLH) is a key observational capability necessary for many studies in weather forecasting, air quality assessment, and surface-atmosphere exchange. However, continuous MLH monitoring ...

EOL Affiliations: RSF

Publication Genre: Article

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Uncertainty-aware machine learning bias correction and filtering for OCO-2. 2

Keely, W., Mauceri, S., Nelson, R., Laughner, J., O'Dell, C. W., et al. (2025). Uncertainty-aware machine learning bias correction and filtering for OCO-2. 2. Earth and Space Science, doi:https://doi.org/10.1029/2025ea004329

EOL Affiliations: RAF

Publication Genre: Article

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Overview of the Chemistry in the Arctic: Clouds, Halogens, and Aerosols (CHACHA) field campaign

Fuentes, J. D., Lance, S., Pratt, K. A., Shepson, P. B., Simpson, W. R., et al. (2025). Overview of the Chemistry in the Arctic: Clouds, Halogens, and Aerosols (CHACHA) field campaign. Bulletin of the American Meteorological Society, doi:https://doi.org/10.1175/bams-d-24-0192.1

The Chemistry in the Arctic: Clouds, Halogens, and Aerosols (CHACHA) field project aimed to advance the understanding of coupled meteorological and chemical processes in the atmospheric boundary layer during the seasonal increase in sea ice...

EOL Affiliations: RAF

Publication Genre: Article

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A novel bandstop regression filter with application to range–velocity mitigation for weather radar data

Hubbert, J. C., Romatschke, U.. (2025). A novel bandstop regression filter with application to range–velocity mitigation for weather radar data. Journal of Atmospheric and Oceanic Technology, doi:https://doi.org/10.1175/jtech-d-24-0115.1

Regression filters are typically used to either extract the trend of a signal (low-pass filter) or to estimate the high-frequency content of a signal by subtracting the estimated trend from the original signal (high-pass filter). However, i...

EOL Affiliations: RSF, EOLADMIN

Publication Genre: Article

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The Observational Recovery and Integration of Geoscience Information for New Science (ORIGINS) Center

Witte, J., Lenhardt, W. C.. (2025). The Observational Recovery and Integration of Geoscience Information for New Science (ORIGINS) Center. , doi:https://doi.org/10.5065/62k3-rm20

The preservation and accessibility of historical geoscience observations are crucial for advancing Earth system science research. However, many valuable datasets collected over decades are at risk of being lost due to degradation of physica...

EOL Affiliations: ISF, EOLADMIN

Publication Genre: Manuscript

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Advances in CALIPSO (IIR) cirrus cloud property retrievals – Part 1: Methods and testing

Mitchell, D. L., Garnier, A., Woods, S.. (2025). Advances in CALIPSO (IIR) cirrus cloud property retrievals – Part 1: Methods and testing. Atmospheric Chemistry and Physics, doi:https://doi.org/10.5194/acp-25-14071-2025

Abstract. In this study, we describe an improved Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) satellite retrieval which uses the CALIPSO Imaging Infrared Radiometer (IIR) and the CALIPSO lidar for retrievals o...

EOL Affiliations: RAF

Publication Genre: Article

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Fog clearing in the lee of an isolated, flat island

Gaberšek, S., Gapp, N., Bardoel, S. L., Fernando, H. J., Ruiz-Plancarte, J., et al. (2025). Fog clearing in the lee of an isolated, flat island. Quarterly Journal of the Royal Meteorological Society, doi:https://doi.org/10.1002/qj.5057

This study investigates the phenomenon of fog clearing in the lee of Sable Island, Nova Scotia, termed a "fog shadow", using observations from the 2022 Fog And Turbulence Interactions in the Marine Atmosphere field experiment and Coupled Oc...

EOL Affiliations: ISF

Publication Genre: Article

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A new machine learning retrieval of liquid water path optimized for mixed-phase cold-air outbreaks using radiometer and radar observations

Ephraim, S., Zuidema, P., Juliano, T. W., Grasmick, C., Cadeddu, M., et al. (2025). A new machine learning retrieval of liquid water path optimized for mixed-phase cold-air outbreaks using radiometer and radar observations. Journal of Atmospheric and Oceanic Technology, doi:https://doi.org/10.1175/jtech-d-24-0132.1

Cold-air outbreaks over high-latitude oceans typically include mixed-phase clouds and precipitation, in particular supercooled liquid clouds that support snow and graupel through ice growth processes. The partitioning of the total water int...

EOL Affiliations: RAF

Publication Genre: Article

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Boundary layer observations and near-surface wind estimation during the landfalls of Hurricanes Ida (2021) and Zeta (2020)

Leffler, Z. W., Chen, X., Carey, L. D., Knupp, K., Lee, W.. (2025). Boundary layer observations and near-surface wind estimation during the landfalls of Hurricanes Ida (2021) and Zeta (2020). Geophysical Research Letters, doi:https://doi.org/10.1029/2025gl117487

This study examines the boundary layer wind profile and turbulence variables during the landfalls of Hurricanes Ida (2021) and Zeta (2020) using ground-based Doppler radar observations and a nearby anemometer's wind measurements. While the ...

EOL Affiliations: RSF

Publication Genre: Article

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The Atmospheric Potential Oxygen forward Model Intercomparison Project (APO-MIP1): evaluating simulated atmospheric transport of air-sea gas exchange tracers and APO flux products

Jin, Y., Stephens, B., Long, M. C., Chandra, N., Chevallier, F., et al. (2025). The Atmospheric Potential Oxygen forward Model Intercomparison Project (APO-MIP1): evaluating simulated atmospheric transport of air-sea gas exchange tracers and APO flux products. Geoscientific Model Development, doi:https://doi.org/10.5194/gmd-18-5937-2025

Atmospheric Potential Oxygen (APO, defined as O2 + 1.1 × CO2) is primarily a tracer of ocean biogeochemistry and fossil fuel burning. APO exhibits strong seasonal variability at mid-to-high latitudes, driven mainly by seasonal air-sea O2 ex...

EOL Affiliations: EOLADMIN, RAF

Publication Genre: Article

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Observations of clouds and radiation over King George Island and implications for the Southern Ocean and Antarctica

Rowe, P. M., Zou, X., Gorodetskaya, I., Stillwell, R. A., Cordero, R. R., et al. (2025). Observations of clouds and radiation over King George Island and implications for the Southern Ocean and Antarctica. Journal of Geophysical Research: Atmospheres, doi:https://doi.org/10.1029/2024jd042787

Clouds play an important role in the Southern Ocean and Antarctic surface energy balance via their radiative effects and in surface mass balance via precipitation formation. Here, we use measurements at Escudero Station (62.2°S, 58.97°W) on...

EOL Affiliations: RSF

Publication Genre: Article

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Intercomparison of wind speed, temperature, and humidity data between dropsondes and aircraft in situ measurements

Namdari, S., Dmitrovic, S., Chen, G., Choi, Y., Crosbie, E., et al. (2025). Intercomparison of wind speed, temperature, and humidity data between dropsondes and aircraft in situ measurements. Atmospheric Measurement Techniques, doi:https://doi.org/10.5194/amt-18-4325-2025

Airborne measurements of wind speed and direction, temperature, and relative humidity are critical due to their importance for atmospheric processes. Field campaigns with multiple coordinated aircraft present challenges when combining data ...

EOL Affiliations: ISF

Publication Genre: Article

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Expanding observational capabilities of diode-laser-based lidar through shot-to-shot modification of laser pulse characteristics

Stillwell, R. A., Karboski, A., Hayman, M., Spuler, S. M.. (2025). Expanding observational capabilities of diode-laser-based lidar through shot-to-shot modification of laser pulse characteristics. Atmospheric Measurement Techniques, doi:https://doi.org/10.5194/amt-18-4119-2025

A method for expanding the observational capabilities of diode-laser-based atmospheric lidar is discussed. A straightforward test, consisting of interleaved “Long” and “Short” laser pulses, is developed to demonstrate how shot-to-shot modif...

EOL Affiliations: RSF

Publication Genre: Article

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Impact of assimilating thermodynamic and kinematic profiles on a convection initiation forecast

Kay, J., Weckwerth, T., Turner, D. D., Romine, G., Ying, Y.. (2025). Impact of assimilating thermodynamic and kinematic profiles on a convection initiation forecast. Monthly Weather Review, doi:https://doi.org/10.1175/mwr-d-24-0233.1

The first field campaign of a network of water vapor lidars, called the micropulse differential absorption lidar (MPD) network demonstration project, combined the observational capabilities of the water vapor MPD, the Atmospheric Emitted Ra...

EOL Affiliations: RSF

Publication Genre: Article

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The formation process of principal rainbands of Typhoon Hagupit (2008) as revealed by a convective allowing cloud model simulation

Wang, C., Lee, W., Su, N., Chuang, P., Tsujino, S., et al. (2025). The formation process of principal rainbands of Typhoon Hagupit (2008) as revealed by a convective allowing cloud model simulation. Monthly Weather Review, doi:https://doi.org/10.1175/mwr-d-24-0100.1

EOL Affiliations: RSF

Publication Genre: Article

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Proceedings of the 2025 Improving Scientific Software Conference

Fitzgerald, K., Sobhani, N., Vanderwende, B., Arabas, S., Bai, Z., et al. (2025). Proceedings of the 2025 Improving Scientific Software Conference. NCAR Technical Notes, doi:https://doi.org/10.5065/4w2k-ay60

The Software Engineering Assembly (SEA) is a loosely structured group of software engineers and scientists who write scientific software, mostly but not only at NCAR and mostly but not only in the field of atmospheric sciences. The mission ...

EOL Affiliations: RSF

Publication Genre: Technical Report

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Quantifying UAS observation error variance used in data assimilation systems and its impact on predictive skill

Kay, J., Pinto, J., Weckwerth, T., Boer, G. d.. (2025). Quantifying UAS observation error variance used in data assimilation systems and its impact on predictive skill. Journal of Advances in Modeling Earth Systems, doi:https://doi.org/10.1029/2024ms004601

Observation error determines the weights of the observations and background state used in data assimilation to generate analyses. Quantifying observation error is critical for the optimal assimilation of observational data sets. Uncrewed Ai...

EOL Affiliations: RSF

Publication Genre: Article

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Comparison of cloud and radiation measurements to models over the Southern Ocean at Escudero Station, King George Island

Rowe, P. M., Zou, X., Gorodetskaya, I., Stillwell, R. A., Cordero, R. R., et al. (2025). Comparison of cloud and radiation measurements to models over the Southern Ocean at Escudero Station, King George Island. Journal of Geophysical Research: Atmospheres, doi:https://doi.org/10.1029/2025JD043563

Clouds and radiation play an important role in warming events over the Southern Ocean (SO). Here we evaluate European Center for Medium-Range Weather Forecasts Reanalysis version 5 (ERA5) and Polar Weather Research Forecast (PWRF) output th...

EOL Affiliations: RSF

Publication Genre: Article

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Impact of assimilating GPS precipitable water vapor on simulations of two North American monsoon convective events using observing system simulation experiments

Shohan, S., Koch, S., Castro, C. L., Arellano, A. F., Kay, J., et al. (2025). Impact of assimilating GPS precipitable water vapor on simulations of two North American monsoon convective events using observing system simulation experiments. Journal of Geophysical Research: Atmospheres, doi:https://doi.org/10.1029/2025JD044491

This study evaluates the impact of assimilating precipitable water vapor (PWV) within an observing system simulation experiment (OSSE) framework to improve forecasts of monsoonal mesoscale convective systems (MCSs) in Arizona. Two contrasti...

EOL Affiliations: RSF

Publication Genre: Article

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Economical and effective upgrades to an airborne cloud radar with a dual pulsing scheme

Romatschke, U., Dixon, M. J., Burghart, C. D., Karboski, A., Emmett, J. M., et al. (2025). Economical and effective upgrades to an airborne cloud radar with a dual pulsing scheme. IEEE Transactions on Geoscience and Remote Sensing, doi:https://doi.org/10.1109/TGRS.2025.3601429

The High-Performance Instrumented Airborne Platform For Environmental Research (HIAPER) Cloud Radar (HCR) is an airborne 94.4-GHz W-band Doppler radar, which is deployed in field campaigns in an underwing pod on the National Science Foundat...

EOL Affiliations: EOLADMIN, RSF

Publication Genre: Article

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The determination of ClNO2 via thermal dissociation–tunable infrared laser direct absorption spectroscopy

Halfacre, J. W., Marden, L., Shaw, M., Carpenter, L. J., Matthews, E., et al. (2025). The determination of ClNO2 via thermal dissociation–tunable infrared laser direct absorption spectroscopy. Atmospheric Measurement Techniques, doi:https://doi.org/10.5194/amt-18-3799-2025

Abstract. Nitryl chloride (ClNO2) is a reservoir species of chlorine atoms and nitrogen oxides, both of which play important roles in atmospheric chemistry. To date, all ambient ClNO2 observations have been obtained by chemical ionization m...

EOL Affiliations: RAF

Publication Genre: Article

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Freezing fog microphysics and visibility based on CFACT Feb 19 case

Durmus, O., Gultepe, I., Sen, O., Pu, Z., Pardyjak, E. R., et al. (2025). Freezing fog microphysics and visibility based on CFACT Feb 19 case. Remote Sensing, doi:https://doi.org/10.3390/rs17152728

The objective of this study is to analyze microphysical parameters affecting visibility parameterizations of a freezing fog case that occurred on 19 February 2022, during the Cold Fog Amongst Complex Terrain (CFACT) project conducted in a h...

EOL Affiliations: ISF

Publication Genre: Article

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Perchlorate in stratospheric aerosol particles

Murphy, D. M., Abou-Ghanem, M., Ahern, A. T., Brock, C. A., Cziczo, D. J., et al. (2025). Perchlorate in stratospheric aerosol particles. Proceedings of the National Academy of Sciences, doi:https://doi.org/10.1073/pnas.2512783122

Perchlorate is a toxic, regulated contaminant in drinking water. According to previous isotopic studies, much of the perchlorate deposited to the Earth’s surface is formed in the atmosphere, with 36 Cl suggesting a large contribution from ...

EOL Affiliations: RAF

Publication Genre: Article

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The NASA ACTIVATE Mission

Sorooshian, A., Siu, L. W., Butler, K., Brunke, M. A., Cairns, B., et al. (2025). The NASA ACTIVATE Mission. Bulletin of the American Meteorological Society, doi:https://doi.org/10.1175/bams-d-24-0136.1

The NASA Aerosol Cloud Meteorology Interactions over the Western Atlantic Experiment (ACTIVATE) conducted 162 joint flights with two aircraft over the northwest Atlantic to study aerosol–cloud interactions (ACIs), which represent the larges...

EOL Affiliations: ISF

Publication Genre: Article

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The MatterHEX experiment—investigating atmospheric flow patterns in highly complex terrain related to banner cloud formation

Hoch, S., Thomas, M. L., Huwald, H., Lehning, M., Schaik, B. J. v., et al. (2025). The MatterHEX experiment—investigating atmospheric flow patterns in highly complex terrain related to banner cloud formation. Bulletin of the American Meteorological Society, doi:https://doi.org/10.1175/bams-d-24-0108.1

Orographic clouds typically form on the windward side of a topographic barrier when approaching air is cooled as it is lifted, and moisture condenses into cloud droplets. Under special conditions, however, clouds can appear on the leeward s...

EOL Affiliations: ISF

Publication Genre: Article

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Specific attenuation-based rain-rate applicability to varying rainfall intensity in complex terrain

Cornejo, I. C., Rowe, A. K., Dixon, M. J., Romatschke, U.. (2025). Specific attenuation-based rain-rate applicability to varying rainfall intensity in complex terrain. Journal of Atmospheric and Oceanic Technology, doi:https://doi.org/10.1175/JTECH-D-24-0094.1

Dual-polarization radar is a valuable tool for quantifying rainfall, including in remote and mountainous regions, but subject to partial beam blockage and ground clutter. Recent studies have shown that the utilization of specific attenuati...

EOL Affiliations: RSF

Publication Genre: Article

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Wind Analysis of Tropical Cyclones Using SAMURAI and AOSPRE

Bryan, D., Lee, W., Klotz, B., Cha, T.. (2025). Wind Analysis of Tropical Cyclones Using SAMURAI and AOSPRE. , doi:https://doi.org/10.5065/sqaa-r233

As Earth continues to warm, the expectation is that major hurricanes will likely become more frequent. Scientists are challenged to understand intensifying complex storms to mitigate impending disasters. Remote-sensing instruments have been...

EOL Affiliations: RSF

Publication Genre: Manuscript

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Utilizing GIS in Aviation for Heavy Precipitation Events: A Hurricane Michael (2018) Case Study

Cargile, L., Lee, W., Klotz, B., Cha, T.. (2025). Utilizing GIS in Aviation for Heavy Precipitation Events: A Hurricane Michael (2018) Case Study. , doi:https://doi.org/10.5065/ft6d-aq13

Weather is one of the greatest hazards in aviation, responsible for over 50% of aircraft-related incidents (Cao et al. 2014). One of the most common weather-related hazards is heavy rain, which can lead to aquaplaning due to standing water....

EOL Affiliations: RSF

Publication Genre: Manuscript

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Investigating Non-Propagating Waves in the Outflow Layer of Tropical Cyclones

Chamhitt, S., Nolan, D. S., Lawton, Q. A., Kukulies, J., Vömel, H.. (2025). Investigating Non-Propagating Waves in the Outflow Layer of Tropical Cyclones. , doi:https://doi.org/10.5065/a4nw-d771

Recent studies have investigated spiral gravity waves in tropical cyclones (TCs), where similar wave-like features have been observed in the upper outflow layer. Among these are non-propagating waves (NPWs), which are defined in this study ...

EOL Affiliations: ISF

Publication Genre: Manuscript

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Aerosol-cloud interactions in cirrus clouds based on global-scale airborne observations and machine learning models

Ngo, D., Diao, M., Patnaude, R. J., Woods, S., Diskin, G.. (2025). Aerosol-cloud interactions in cirrus clouds based on global-scale airborne observations and machine learning models. Atmospheric Chemistry and Physics, doi:https://doi.org/10.5194/acp-25-7007-2025

Cirrus cloud formation and evolution are subject to the influences of thermodynamic and dynamic conditions and aerosols. This study developed near global-scale in situ aircraft observational datasets based on 12 field campaigns that spanned...

EOL Affiliations: RAF, RAFDEPT

Publication Genre: Article

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Ozone production efficiencies in the three largest United State cities from airborne measurements

Chace, W. S., Womack, C., Ball, K., Bates, K. H., Bohn, B., et al. (2025). Ozone production efficiencies in the three largest United State cities from airborne measurements. Environmental Science & Technology, doi:https://doi.org/10.1021/acs.est.5c02073

Despite ongoing reductions in emissions of ozone (O3) precursors, nitrogen oxides (NOx = NO + NO2) and volatile organic compounds (VOCs), the three largest urban areas in the United States ─ New York City (NYC), Chicago, and Los Angeles (LA...

EOL Affiliations: RAF, RAFDEPT

Publication Genre: Article

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Justification for high-ascent attainment for balloon radiosonde soundings at GRUAN and other sites

Fujiwara, M., Sun, B., Reale, A., Cimini, D., Larosa, S., et al. (2025). Justification for high-ascent attainment for balloon radiosonde soundings at GRUAN and other sites. Atmospheric Measurement Techniques, doi:https://doi.org/10.5194/amt-18-2919-2025

We assess and illustrate the benefits of high-altitude attainment of balloon-borne radiosonde soundings, up to and beyond 10 hPa level compared to, for example, 30 hPa, at operational stations and at sites of the Global Climate Observing Sy...

EOL Affiliations: ISF, ISFSEC

Publication Genre: Article

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Uncertainty‐aware machine learning bias correction and filtering for OCO‐2: 1

Mauceri, S., Keely, W., Laughner, J., O’Dell, C. W., Massie, S., et al. (2025). Uncertainty‐aware machine learning bias correction and filtering for OCO‐2: 1. Earth and Space Science, doi:https://doi.org/10.1029/2025EA004328

The Orbiting Carbon Observatory‐2 (OCO‐2) makes space‐based radiance measurements of reflected sunlight. Using a physics‐based retrieval algorithm, these measurements are inverted to estimate column‐averaged atmospheric carbon dioxide dry‐...

EOL Affiliations: RAFDEPT

Publication Genre: Article

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Education and community engagement during NSF NCAR-supported field campaigns

Zietlow, D., Haacker, R., Aquino, J. A.. (2025). Education and community engagement during NSF NCAR-supported field campaigns. Bulletin of the American Meteorological Society, doi:https://doi.org/10.1175/BAMS-D-24-0315.1

Scientific field campaigns are critical components of atmospheric and related science research for data collection, comparison with models, and instrument testing. Additionally, such projects are unique opportunities to engage local communi...

EOL Affiliations: RAF

Publication Genre: Article

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Storm Peak Laboratory: A research and training facility for the atmospheric sciences

Hallar, A. G., McCubbin, I. B., Borys, R., Lowenthal, D. H., Wetzel, M., et al. (2025). Storm Peak Laboratory: A research and training facility for the atmospheric sciences. Bulletin of the American Meteorological Society, doi:https://doi.org/10.1175/bams-d-24-0043.1

Storm Peak Laboratory, located on the Steamboat Springs Ski Resort in Colorado on the west summit of Mount Werner at 10 532 ft (3220 m) MSL, is an internationally recognized high-elevation atmospheric research station that has been in use f...

EOL Affiliations: ISF, RAF

Publication Genre: Article

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Toward improved short-term forecasting for Lake Victoria Basin. Part II: Preconvective environment analysis with ERA5

Méndez, A. d. M., Roberts, R., Weckwerth, T., Wilson, J. W.. (2025). Toward improved short-term forecasting for Lake Victoria Basin. Part II: Preconvective environment analysis with ERA5. Monthly Weather Review, doi:https://doi.org/10.1175/MWR-D-24-0074.1

Lake Victoria is the largest freshwater lake in Africa, with around 30 million people living on its coastline, and it serves as one of the largest natural resources for East African communities due to its prosperous fishing industry. Howev...

EOL Affiliations: RSF

Publication Genre: Article

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Recommendations for the NSF Facilities for Atmospheric Research and Education (FARE): Access and capabilities

Geerts, B., Baeuerle, B., Diao, M., Delgado, R., Hallar, A. G., et al. (2025). Recommendations for the NSF Facilities for Atmospheric Research and Education (FARE): Access and capabilities. Bulletin of the American Meteorological Society, doi:https://doi.org/10.1175/BAMS-D-24-0125.1

Recommendations are presented regarding the composition and accessibility of the Facilities for Atmospheric Research and Education (FARE), funded by the U.S. National Science Foundation (NSF). The FARE program broadens access to specialized...

EOL Affiliations: EOLAO, EOLADMIN, RAF, RAFDEPT, RSF

Publication Genre: Article

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On the role of airborne ice nucleating particles in primary and secondary ice formation processes in convective midlatitude clouds

Patnaude, R. J., Moore, K. A., Perkins, R. J., Hill, T. C. J., Lawson, P., et al. (2025). On the role of airborne ice nucleating particles in primary and secondary ice formation processes in convective midlatitude clouds. Journal of the Atmospheric Sciences, doi:https://doi.org/10.1175/JAS-D-24-0135.1

Formation of ice in mixed-phase clouds may proceed via primary nucleation and secondary ice production (SIP). Primary nucleation involves the presence of ice nucleating particles (INPs), while SIP follows primary nucleation, resulting in ic...

EOL Affiliations: RAF

Publication Genre: Article

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Elucidating new particle formation in complex terrain during the winter 2022 Cold Fog Amongst Complex Terrain (CFACT) campaign

Carrillo‐Cardenas, G., Hoch, S. W., Pardyjak, E., Garcia, M., Brown, W. O.J., et al. (2025). Elucidating new particle formation in complex terrain during the winter 2022 Cold Fog Amongst Complex Terrain (CFACT) campaign. Journal of Geophysical Research: Atmospheres, doi:https://doi.org/10.1029/2024JD042307

New particle formation (NPF) is a complex atmospheric phenomenon defined by the gas‐to‐particle conversion that leads to the sudden burst and growth in aerosol particles. Although chemical mechanisms for aerosol nucleation and growth are we...

EOL Affiliations: ISF, APG

Publication Genre: Article

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Processing of Doppler spectra collected by an airborne cloud radar for the calculation of skewness, kurtosis, and other spectral parameters

Romatschke, U., Romatschke, P., Hayman, M., Dixon, M. J.. (2025). Processing of Doppler spectra collected by an airborne cloud radar for the calculation of skewness, kurtosis, and other spectral parameters. Earth and Space Science, doi:https://doi.org/10.1029/2024EA004105

Observations from the HIAPER Cloud Radar (HCR) are used to develop a methodology to calculate Doppler spectra from an airborne platform. The method removes spectral noise and corrects the spectra for broadening caused by aircraft motion. Th...

EOL Affiliations: RSF

Publication Genre: Article

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Development of mean wind retrieval methodology for the Generalized Velocity Track Display

Lee, T., Huang, S., Lee, W., Jou, B. J., Tsai, C., et al. (2025). Development of mean wind retrieval methodology for the Generalized Velocity Track Display. Terrestrial, Atmospheric and Oceanic Sciences, doi:https://doi.org/10.1007/s44195-025-00091-z

Since 1990s, the Ground-Based Velocity Track Display (GBVTD) – family of techniques, including the Generalized Velocity Track Display (GVTD), have been used to retrieve the kinematic structure of Tropical cyclones (TCs) using data from a si...

EOL Affiliations: RSF

Publication Genre: Article

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Incorporating cooking emissions to better simulate the impact of zero-emission vehicle adoption on ozone pollution in Los Angeles

Zhu, Q., Schwantes, R. H., Stockwell, C. E., Harkins, C., Lyu, C., et al. (2025). Incorporating cooking emissions to better simulate the impact of zero-emission vehicle adoption on ozone pollution in Los Angeles. Environmental Science & Technology, doi:https://doi.org/10.1021/acs.est.5c00902

Despite decades of emission control measures aimed at improving air quality, Los Angeles (LA) continues to experience severe ozone pollution during the summertime. We incorporate cooking volatile organic compound (VOC) emissions in a chemic...

EOL Affiliations: RAF

Publication Genre: Article

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Advances in an OH reactivity instrument for airborne field measurements

Fuchs, H., Stainsby, A., Berg, F., Dubus, R., Färber, M., et al. (2025). Advances in an OH reactivity instrument for airborne field measurements. Atmospheric Measurement Techniques, doi:https://doi.org/10.5194/amt-18-881-2025

Hydroxyl radical (OH) reactivity, which is the inverse lifetime of the OH radical, provides information on the burden of air pollutants, since almost all air pollutants react with OH. OH reactivity measurements from field experiments can he...

EOL Affiliations: RAF

Publication Genre: Article

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Black carbon reflects extremely efficient aerosol wet removal in monsoonal convective transport

Berberich, J., Jacoby, S. A., Michailoudi, G., Schwarz, J. P., Viciani, S., et al. (2025). Black carbon reflects extremely efficient aerosol wet removal in monsoonal convective transport. Journal of Geophysical Research: Atmospheres, doi:https://doi.org/10.1029/2024JD042692

Refractory black carbon (rBC) is a primary aerosol species, produced through incomplete combustion, that absorbs sunlight and contributes to positive radiative forcing. The overall climate effect of rBC depends on its spatial distribution a...

EOL Affiliations: RAF

Publication Genre: Article

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The relevance of Mean-State Critical Levels for the intensification of downslope winds in a coastal mountainous environment

Duine, G., Carvalho, L. M. V., Jones, C., Thompson, C., Brown, W. O.J., et al. (2025). The relevance of Mean-State Critical Levels for the intensification of downslope winds in a coastal mountainous environment. Weather and Forecasting, doi:https://doi.org/10.1175/WAF-D-24-0084.1

In wildfire-prone coastal Santa Barbara, California, downslope winds observed on the southern slopes of the east–west-oriented Santa Ynez Mountains are known as Sundowner winds (or Sundowners). One important feature of Sundowners is the rem...

EOL Affiliations: ISF, APG

Publication Genre: Article

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Urban ozone formation and sensitivities to volatile chemical products, cooking emissions, and NOx upwind of and within two Los Angeles Basin cities

Stockwell, C. E., Coggon, M. M., Schwantes, R. H., Harkins, C., Verreyken, B., et al. (2025). Urban ozone formation and sensitivities to volatile chemical products, cooking emissions, and NOx upwind of and within two Los Angeles Basin cities. Atmospheric Chemistry and Physics, doi:https://doi.org/10.5194/acp-25-1121-2025

Volatile chemical products (VCPs) and other non-traditional anthropogenic sources, such as cooking, contribute substantially to the volatile organic compound (VOC) budget in urban areas, but their impact on ozone formation is less certain. ...

EOL Affiliations: RAF

Publication Genre: Article

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Evolution of radar meteorology in India and the latest trends

Bhat, G. S., Vivekanandan, J., Pradhan, D.. (2025). Evolution of radar meteorology in India and the latest trends. Mausam, doi:https://doi.org/10.54302/mausam.v76i1.6497

Weather radar is an indispensable tool in the continuous monitoring and warning of extreme events including tropical cyclones and thunderstorms. The India Meteorological Department (IMD) has been operating radars since 1949. The evolution o...

EOL Affiliations: RSF

Publication Genre: Article

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The impact of antenna cross-pol contamination on polarimetric spectra from ice alignment signatures

Tzeng, M. D., Yu, T. Y., Schvartzman, D., Bodine, D., Hubbert, J. C., et al. (2025). The impact of antenna cross-pol contamination on polarimetric spectra from ice alignment signatures. IEEE Transactions on Geoscience and Remote Sensing, doi:https://doi.org/10.1109/tgrs.2025.3597189

This study provides the first in-depth examination of the spectral polarimetric characteristics of the ice alignment signatures (IASs) in thunderstorms, emphasizing how aligned ice crystals affect spectral co-cross correlation coefficient (...

EOL Affiliations: RSF

Publication Genre: Article

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Development of a photon-counting deadtime noise model that extends dynamic range and resolution in atmospheric lidar

Kirchhoff, G. J., Hayman, M., Marais, W. J., Thayer, J. P., Barton-Grimley, R. A.. (2025). Development of a photon-counting deadtime noise model that extends dynamic range and resolution in atmospheric lidar. Applied Optics, doi:https://doi.org/10.1364/AO.543305

This work derives and validates a noise model that encapsulates the deadtime of non-paralyzable detectors with random photon arrivals to enable advanced processing, such as maximum-likelihood estimation, of high-resolution atmospheric lidar...

EOL Affiliations: RSF

Publication Genre: Article

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Investigating the role of typhoon-induced waves and stratospheric hydration in the formation of tropopause cirrus clouds observed during the 2017 Asian monsoon

Pandit, A. K., Vernier, J., Fairlie, T. D., Bedka, K., Avery, M., et al. (2024). Investigating the role of typhoon-induced waves and stratospheric hydration in the formation of tropopause cirrus clouds observed during the 2017 Asian monsoon. Atmospheric Chemistry and Physics, doi:https://doi.org/10.5194/acp-24-14209-2024

We investigate the formation mechanism of a tropopause cirrus cloud layer observed during the Balloon measurement campaigns of the Asian Tropopause Aerosol Layer (BATAL) over Hyderabad (17.47° N, 78.58° E), India, on 23 August 2017. Simulta...

EOL Affiliations: ISF, SND

Publication Genre: Article

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A Description of the Microwave Temperature Profiler (MTP) Instrument Processing Software

Aquino, J. A., Haggerty, J. A., Mahoney, M. J.. (2024). A Description of the Microwave Temperature Profiler (MTP) Instrument Processing Software. NCAR Technical Notes, doi:https://doi.org/10.5065/djx8-nz50

The Microwave Temperature Profiler (MTP) and associated processing software were developed under a contract between the University Corporation for Atmospheric Research (UCAR) and the Jet Propulsion Lab (JPL) with funding provided by the Nat...

EOL Affiliations: RAF, RAFSE

Publication Genre: Technical Report

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Impact of assimilation of New York State Mesonet doppler wind lidar on high impact weather predictions in New York State

Kay, J., Weckwerth, T.. (2024). Impact of assimilation of New York State Mesonet doppler wind lidar on high impact weather predictions in New York State. Atmosphere, doi:https://doi.org/10.14191/Atmos.2024.34.4.481

The New York State (NYS) Mesonet consists of 126 surface weather stations across the state with 17 of the sites also instrumented with active and passive profiler systems. The NYS Mesonet (NYSM) is the first and only state-run network in th...

EOL Affiliations: RSF

Publication Genre: Article

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Persistent identifiers for instruments and facilities: Current state, challenges, and opportunities

Mayernik, M., Johnson, A., Julian, R., Murray, M., Mundoma, C., et al. (2024). Persistent identifiers for instruments and facilities: Current state, challenges, and opportunities. Journal of eScience Librarianship, doi:https://doi.org/10.7191/jeslib.964

Persistent Identifiers (PIDs) are central to the vision of open science described in the FAIR Principles. However, the use of PIDs for scientific instruments and facilities is decentralized and fragmented. This project aims to develop commu...

EOL Affiliations: DMS

Publication Genre: Article

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Dust, convection, winds, and waves: The 2022 NASA CPEX-CV campaign

Nowottnick, E. P., Rowe, A. K., Nehrir, A. R., Zawislak, J., Pina, A., et al. (2024). Dust, convection, winds, and waves: The 2022 NASA CPEX-CV campaign. Bulletin of the American Meteorological Society, doi:https://doi.org/10.1175/BAMS-D-23-0201.1

The NASA Convective Processes Experiment-Cabo Verde (CPEX-CV) field campaign took place in September 2022 out of Sal Island, Cabo Verde. A unique payload aboard the NASA DC-8 aircraft equipped with advanced remote sensing and in situ instru...

EOL Affiliations: ISF, SND

Publication Genre: Article

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Investigating the mechanisms of an intense coastal rainfall event during TAHOPE/PRECIP-IOP3 using a multiscale radar ensemble data assimilation system

Yang, S., Chen, S., Liu, L., Yeh, H., Chang, W., et al. (2024). Investigating the mechanisms of an intense coastal rainfall event during TAHOPE/PRECIP-IOP3 using a multiscale radar ensemble data assimilation system. Monthly Weather Review, doi:https://doi.org/10.1175/MWR-D-24-0049.1

The joint Taiwan-Area Heavy Rain Observation and Prediction Experiment (TAHOPE)/Prediction of Rainfall Extremes Campaign in the Pacific (PRECIP) field campaign between Taiwan and the United States took place from late May to mid-August in 2...

EOL Affiliations: RSF

Publication Genre: Article

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Operational phased array radar network for natural hazard monitoring and warnings in urban environments over the Greater Bay Area, China

Zhao, K., Huang, H., Lu, Y., Chen, H., Wu, C., et al. (2024). Operational phased array radar network for natural hazard monitoring and warnings in urban environments over the Greater Bay Area, China. Bulletin of the American Meteorological Society, doi:https://doi.org/10.1175/BAMS-D-23-0298.1

The continuous development of modern Doppler weather radars has substantially augmented our capacity to monitor severe convective storms and gain insights into their dynamic and microphysical structures. Although conventional parabolic ante...

EOL Affiliations: RSF

Publication Genre: Article

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Impact of assimilating uncrewed aircraft system observations on river valley fog prediction

Pinto, J., Bailey, S. C. C., Fossell, K. R., Binau, S., Xu, M., et al. (2024). Impact of assimilating uncrewed aircraft system observations on river valley fog prediction. Weather and Forecasting, doi:https://doi.org/10.1175/WAF-D-23-0087.1

The impact of assimilating targeted uncrewed aircraft system (UAS) observations on the prediction of radiation and river valley fog is assessed using observing system experiments (OSEs). Two multirotor UASs were deployed during Frequent in ...

EOL Affiliations: RSF

Publication Genre: Article

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Intercomparison of fast airborne ozone instruments to measure eddy covariance fluxes: spatial variability in deposition at the ocean surface and evidence for cloud processing

Chiu, R., Obersteiner, F., Franchin, A., Campos, T., Bailey, A., et al. (2024). Intercomparison of fast airborne ozone instruments to measure eddy covariance fluxes: spatial variability in deposition at the ocean surface and evidence for cloud processing. Atmospheric Measurement Techniques, doi:https://doi.org/10.5194/amt-17-5731-2024

The air–sea exchange of ozone (O3) is controlled by chemistry involving halogens, dissolved organic carbon, and sulfur in the sea surface microlayer. Calculations also indicate faster ozone photolysis at aqueous surfaces, but the role of cl...

EOL Affiliations: RAF

Publication Genre: Article

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Observational and model evidence for a prominent stratospheric influence on variability in tropospheric nitrous oxide

Nevison, C. D., Liang, Q., Newman, P. A., Stephens, B., Dutton, G., et al. (2024). Observational and model evidence for a prominent stratospheric influence on variability in tropospheric nitrous oxide. Atmospheric Chemistry and Physics, doi:https://doi.org/10.5194/acp-24-10513-2024

The literature presents different views on how the stratosphere influences variability in surface nitrous oxide (N2O) and on whether that influence is outweighed by surface emission changes driven by the El Niño–Southern Oscillation (ENSO)....

EOL Affiliations: RAF

Publication Genre: Article

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IWG1 ASCII Packet Definition

Webster, C., Dominguez, R., Freudinger, L., Hill, J., Oolman, L., et al. (2024). IWG1 ASCII Packet Definition.

The Interagency Coordinating Committee for Airborne Geosciences Research and Applications (ICCAGRA) was established to improve cooperation, foster awareness, facilitate communication among sponsoring agencies having airborne platforms and i...

EOL Affiliations: RAF, RAFSE

Publication Genre: Manuscript

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Structural Analysis of Tropical Cyclones by the Airborne Phased Array Radar Observing Simulator: A Comparison Study

Bryan, D., Klotz, B., Lee, W., Vivekanandan, J.. (2024). Structural Analysis of Tropical Cyclones by the Airborne Phased Array Radar Observing Simulator: A Comparison Study. , doi:https://doi.org/10.5065/k4c5-3951

Hurricanes are increasingly becoming more powerful and frequent as Earth continues to warm rapidly. Scientists are challenged with understanding and predicting complex storms to mitigate impending disasters. Remote-sensing instruments have ...

EOL Affiliations: RSF

Publication Genre: Manuscript

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Structural Analysis of Tropical Cyclones by the Airborne Phased Array Radar Observing Simulator: A Comparison Study

Bryan, D., Klotz, B., Lee, W., Vivekanandan, J.. (2024). Structural Analysis of Tropical Cyclones by the Airborne Phased Array Radar Observing Simulator: A Comparison Study. , doi:https://doi.org/10.5065/k4c5-3951

Hurricanes are increasingly becoming more powerful and frequent as Earth continues to warm rapidly. Scientists are challenged with understanding and predicting complex storms to mitigate impending disasters. Remote-sensing instruments have ...

EOL Affiliations: RSF

Publication Genre: Manuscript

View on OpenSky

Structural Analysis of Tropical Cyclones by the Airborne Phased Array Radar Observing Simulator: A Comparison Study

Bryan, D., Klotz, B., Lee, W., Vivekanandan, J., Weeks, C., et al. (2024). Structural Analysis of Tropical Cyclones by the Airborne Phased Array Radar Observing Simulator: A Comparison Study. , doi:https://doi.org/10.5065/k4c5-3951

Hurricanes are increasingly becoming more powerful and frequent as Earth continues to warm rapidly. Scientists are challenged with understanding and predicting complex storms to mitigate impending disasters. Remote-sensing instruments have ...

EOL Affiliations: RSF

Publication Genre: Manuscript

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State of the Climate in 2023

Blunden, J., Boyer, T., Randel, W., Tye, M., Vömel, H.. (2024). State of the Climate in 2023. Bulletin of the American Meteorological Society, doi:https://doi.org/10.1175/2024BAMSStateoftheClimate.1

This document is a comprehensive climate report from 2023, detailing global environmental changes and extreme weather events. The report highlights record-breaking temperatures, rising greenhouse gas concentrations, and widespread environme...

EOL Affiliations: ISF, SND

Publication Genre: Article

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Drivers of seasonal to decadal mixed layer carbon cycle variability in subantarctic water in the Munida Time Series

Vance, J., Currie, K., Suanda, S. H., Law, C. S.. (2024). Drivers of seasonal to decadal mixed layer carbon cycle variability in subantarctic water in the Munida Time Series. Frontiers in Marine Science, doi:https://doi.org/10.3389/fmars.2024.1309560

Using ancillary datasets and interpolation schemes, 20+ years of the Munida Time Series (MTS) observations were used to evaluate the seasonal to decadal variability in the regional carbon cycle off the southeast coast of New Zealand. The co...

EOL Affiliations: RAF

Publication Genre: Article

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Advancement and demonstration of a perturbative retrieval technique for temperature profiling in the lower troposphere using differential absorption light detection and ranging

Cruikshank, O., Colberg, L., Repasky, K. S., Stillwell, R. A., Spuler, S. M.. (2024). Advancement and demonstration of a perturbative retrieval technique for temperature profiling in the lower troposphere using differential absorption light detection and ranging. Journal of Applied Remote Sensing, doi:https://doi.org/10.1117/1.JRS.18.034514

In response to a community-identified need for ground-based thermodynamic (TD) profiling of the troposphere, we present the further development and validation of a differential absorption LiDAR (DIAL) technique to retrieve temperature. This...

EOL Affiliations: RSF

Publication Genre: Article

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Simultaneous measurement of water vapor, temperature and aerosol backscatter with diode-laser-based lidar

Hayman, M., Stillwell, R. A., Marais, W.J., Karboski, A., Spuler, S. M.. (2024). Simultaneous measurement of water vapor, temperature and aerosol backscatter with diode-laser-based lidar.

The MicroPulse DIAL (MPD) system utilizes a diode-laser-based architecture to operate at two near-infrared wavelength regions, facilitating water vapor DIAL, High-Spectral-Resolution Lidar (HSRL), and oxygen DIAL techniques at. The instrume...

EOL Affiliations: RSF

Publication Genre: Conference Material

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Modeling the Impacts of Volatile Chemical Product Emissions on Atmospheric Photochemistry and Ozone Formation in Los Angeles

Chen, T., Gilman, J., Kim, S., Lefer, B., Washenfelder, R., et al. (2024). Modeling the Impacts of Volatile Chemical Product Emissions on Atmospheric Photochemistry and Ozone Formation in Los Angeles. Journal of Geophysical Research: Atmospheres, doi:https://doi.org/10.1029/2024JD040743

The dominant fraction of anthropogenic volatile organic compound (VOC) emissions shifted from transportation fuels to volatile chemical products (VCP) in Los Angeles (LA) in 2010. This shift in VOC composition raises the question about the ...

EOL Affiliations: RAF

Publication Genre: Article

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High Spectral Resolution Lidar - generation 2 (HSRL-2) retrievals of ocean surface wind speed: methodology and evaluation

Dmitrovic, S., Hair, J. W., Collister, B. L., Crosbie, E., Fenn, M. A., et al. (2024). High Spectral Resolution Lidar - generation 2 (HSRL-2) retrievals of ocean surface wind speed: methodology and evaluation. Atmospheric Measurement Techniques, doi:https://doi.org/10.5194/amt-17-3515-2024

Ocean surface wind speed (i.e., wind speed 10 m above sea level) is a critical parameter used by atmospheric models to estimate the state of the marine atmospheric boundary layer (MABL). Accurate surface wind speed measurements in diverse l...

EOL Affiliations: ISF, SND

Publication Genre: Article

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Sublimation of snow

Lundquist, J. D., Vano, J., Gutmann, E. D., Hogan, D., Schwat, E., et al. (2024). Sublimation of snow. Bulletin of the American Meteorological Society, doi:https://doi.org/10.1175/BAMS-D-23-0191.1

Snow is a vital part of water resources, and sublimation may remove 10%–90% of snowfall from the system. To improve our understanding of the physics that govern sublimation rates, as well as how those rates might change with the climate, we...

EOL Affiliations: ISF, ISFS

Publication Genre: Article

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