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 


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. 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 (University of Utah), David Kingsmill (University of Colorado) and Bart Geerts (University of Wyoming)
  • Deployment dates: 8-week period between 1 December 2021 and 1 March 2022
  • Deployment location: Salt Lake City, UT
  • NSF Science Program: AGSPDM


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


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


Winter Storm Study

  • Scientific focus: Intense coastal winter storms
  • LAOF requested: CSWR DOW, MM. Pods, expendables
  • Lead Investigators: Karen Kosiba (CSWR), Matt Kumjian (PSU), Kelly Lombardo (PSU), Steven Greybush (PSU), Mike French (SUNY Stonybrook), Josh Wurman (CSWR)
  • Deployment dates: 5 Jan–15 Mar 2022
  • Deployment location: New England region
  • NSF Science Program: AGS/PDM


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 at Albany 
  • Deployment dates: 15 Jan–22Feb 2022
  • Deployment location: New York & Canada
  • NSF Science Program: AGS/PDM