Current Letters of Interest

Updated 2 March 2020

Investigators are required to submit a Letter of Interest (LoI) to the NSF LAOF Program Director and the LAOF Request Coordinator by no later than 15 September (FY-3) for large campaigns and 1 March (FY-2) / 15 September (FY-2) for small campaigns.


APART | Ammonia Phase Partitioning and Transport

  • Scientific focus: Atmospheric chemistry
  • LAOF requested: UWKA
  • Lead Investigators: Emily V. Fischer, Ilana B. Pollack, and Amy P. Sullivan (Colorado State U.)
  • Deployment dates: 1 Apr–15 Jun 2021
  • Deployment location: Colorado Front Range
  • NSF Science Program: AGS/ATC


AQUARIUS | Air Quality Research in the Western US

  • Scientific focus: Wintertime particulate matter in mountain basins
  • LAOF requested: NSF/NCAR C-130
  • Lead Investigator: Gannet Hallar (U. of Utah) et al.
  • Deployment dates: Dec 2021–Feb 2022
  • Deployment location: Salt Lake City, UT
  • NSF Science Program: AGS/ PDM and Atmospheric Chemistry 


ARISE | Assessment of Renewable energy ImpactS on the Environment

  • Scientific focus: Wind farm wake structure variations.
  • LAOF requested: UWKA, ISFS, MPD (with Special Funds)
  • Lead Investigator: Julie K. Lundquist (CU, Boulder) and G. Valerio Iungo (UT, Dallas)
  • Deployment dates: Spring 2023
  • Deployment location: Oklahoma and southern Kansas
  • NSF Science Program: AGS/ PDM


BOREADS | Boreal Organic Reactivity, Emissions, And Deposition Study

  • Scientific focus: Exchange rate of monoterpenes and oxidation products
  • LAOF requested: NSF/NCAR C-130
  • Lead Investigator: T. Bertram (U. Wisconsin/Madison)
  • Deployment date: 1 Jun–15 Jul 2021
  • Deployment location: Ontario Canada
  • NSF Science Program: AGS/ATC


CAESAR | Cold Air outbreaks Experiment in the Sub-Arctic Region

  • Scientific focus: Characterization of cold-air outbreak cloud regime over the Arctic
  • LAOF requested: NSF/NCAR C-130, AVAPS, HAIS, WCR, WCL
  • Lead Investigators: Paquita Zuidema (U. of Miami), Greg McFarquhar (U. of Oklahoma), and Bart Geerts (U. of Wyoming)
  • Deployment dates: ~19 Feb–4 Apr 2022
  • Deployment location: Kiruna, Sweden or Andenes, Norway
  • NSF Science Program: tbd


CAVEAT-Q | Characterization of Atmospheric Variability, Evolution, And Thermodynamics preceding QLCSs

  • Scientific focus: Lower-tropospheric environment ahead of cold-season Quasi-Linear Convective Systems
  • LAOF requested: UWKA, WCL
  • Lead Investigators: Kevin Knupp, University of Alabama in Huntsville; Bart Geerts, University of Wyoming; Michael Biggerstaff, University of Oklahoma; Zhien Wang, University of Colorado 
  • Deployment dates: 1 Nov–23 Dec 2021
  • Deployment location: Southeastern U.S.
  • NSF Science Program: AGS/PDM


CFACT | Cold Fog Amongst Complex Terrain

  • Scientific focus: Enhance the physical understanding of cold fog
  • LAOF requested: ISFS, ISS, MDP, DLB-HSRL
  • Lead Investigators: Zhaoxia Pu and Eric Pardyjak (U. of Utah)
  • Deployment dates: 15 Jan–Feb 2022
  • Deployment location: Herber Valley, Utah
  • NSF Science Program: AGS/PDM


CG WaveSConvective Gravity Waves in the Stratosphere

  • Scientific focus: Convective gravity wave generation, propagation, and variability
  • LAOF requested: NSF/NCAR GV
  • Lead Investigator: Dave Fritts (GATS), Biff Williams (GATS), Tom Lund (GATS), Mel Nicholls (CU, Boulder), and Warren Smith (NCAR)
  • Deployment dates: May or June 2021
  • Deployment location: North central U.S. plains
  • NSF Science Program: AGS/PDM


CHACHA | CHemistry in the Arctic: Clouds, Halogens, and Aerosols

  • Scientific focus: Halogen chemistry and its connections to aerosols and clouds
  • LAOF requested: UWKA, AVAPS
  • Lead Investigator: Paul Shepson (Stony Brook U.)
  • Deployment dates: 15 Feb–16 Apr 2021
  • Deployment location: Utqiaġvik, AK
  • NSF Science Program: OPP and AGS/ATC


ESCAPEExperiment of Sea Breeze Convection, Aerosols, Precipitation and Environment

  • Scientific focus: Lifecycle of convective storms and aerosol interactions
  • LAOF requested: UWKA, WCR, COW, DOWs, soundings
  • Lead Investigators: Pavlos Kollias (Stony Brook U.)
  • Deployment date: 10 July - 30 August 2021
  • Deployment location: Houston, TX
  • NSF Science Program: AGS/PDM


GOTHAMM | Greater NY Oxidant, Tropospheric Halogens, and Aerosol Measurements and Modeling

  • Scientific focus: Biogeochemical interactions in urban, rural, and marine regions
  • LAOF requested: NSF/NCAR C-130, HAIS instruments
  • Lead Investigator: John Mak (Stony Brook U.)
  • Deployment dates: 25 Jun–5 Aug 2021
  • Deployment location: Greater New York City region
  • NSF Science Program: AGS/Atmospheric Chemistry


M2HATS | Multi-point MOST Horizontal Array Turbulence Study

  • Scientific focus: Atmospheric boundary layer
  • LAOF requested: NCAR ISFS
  • Lead Investigators: Chenning Tong (Clemson U.) and Shane Mayor (California State U. at Chico)
  • Deployment dates: Jun–Aug 2021
  • Deployment location: Kettleman City, California
  • NSF Science Program: AGS/PDM


PERiLS Propagation, Evolution and Rotation in Linear Storms

  • Scientific focus: Forecasting tornadoes in quasi-linear convective systems
  • LAOF requested:  CSWR COW, DOW, MM, Pods, soundings
  • Lead Investigator: Karen Kosiba (CSWR), Robert Trapp (UIUC), and Matt Parker (NCSU)
  • Deployment dates: 1 Mar–15 May 2021 and 1 Mar–15 May 2022
  • Deployment location: Southeastern U.S.
  • NSF Science Program: AGS/PDM


Project Terminus

  • Scientific focus: Subtropical marine low cloud deck
  • LAOF requested: NSF/NCAR GV, HCR, HSR, AVAPS
  • Lead Investigators: S. Yuter (NCSU) and P. Zuidema (U. of Miami)
  • Deployment dates: May 2022 or 2023
  • Deployment location: SE Atlantic (off-shore Namibia, Angola)
  • NSF Science Program: AGS/CLD and PDM


PROMO | PRecipitation Over Multiridge Orography

  • Scientific focus: Precipitation across complex, multiridge topography
  • LAOF requested: UWKA, WCR, WCL, CSWR DOW & COW
  • Lead Investigators: Jim Steenburgh (U. of Utah), David Kingsmill (U. of Colorado) and Bart Geerts (U. of Wyoming)
  • Deployment dates: 8-week period between 1 December 2021 and 1 March 2022
  • Deployment location: Salt Lake City, UT
  • NSF Science Program: AGS/PDM


RaDFIRE2 | Rapid Deployment to Wildfires 2

  • Scientific focus: Fire-atmosphere interactions contributing to rapid wildfire growth
  • LAOF requested: UWKA, WCL, WCR, CSWR DOW
  • Lead Investigators: Craig Clements (San Jose State U.), David Kingsmill (U. of Colorado), Neil Lareau (U. of Nevada), and Adam Kochanski (U. of Utah)
  • Deployment dates: 15 Jul–15 Sep 2021
  • Deployment location: Redding, CA
  • NSF Science Program: AGS/ATC


TEAMx-US | Transport and Exchange processes in the Atmosphere over Mountains – US contributions

  • Scientific focus: Variability of the mountain boundary layer
  • Lead Investigators: Stephan De Wekker (U. of Virginia), Neil Lareau (U. of Nevada), Dan Kirshbaum (McGill U.), Bart Geerts (U. of Wyoming), Joe Fernando (U. of Notre Dame), Sebastian Hoch (U. of Utah), Julie Lundquist (U. of Colorado)
  • Deployment dates: 1 June–31 July 2024
  • Deployment location: Innsbruck, Austria
  • NSF Science Program: AGS/PDM


TI3GER | Technological Innovation Into Iodine and GV Environmental Research

  • Scientific focus: Technological Innovation: Iodine and Growing Nanoparticles
  • LAOF requested: NSF/NCAR GV
  • Lead Investigators: R. Volkamer (PI)
  • Deployment dates: 1 Jan–31 May 2021
  • Deployment location: Jeffco, CO; Kona, HI
  • NSF Science Program: AGS/ATC


WINTRE-MIX | WINter precipitation Type REsearch MultI-scale eXperiment

  • Scientific focus: Interactions of precipitation types under near-freezing conditions
  • LAOF requested: UWKA, WCR, WCL, CSWR DOW, COW, MM
  • Lead Investigators: Justin Minder, University of New York at Albany 
  • Deployment dates: 15 Jan–22Feb 2022
  • Deployment location: New York & Canada
  • NSF Science Program: AGS/PDM