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Langley Research Center DAAC

The Langley DAAC supports more than 35 projects and has more than 800 archived data sets relating to radiation budget, clouds, aerosols, and tropospheric chemistry. These data sets were obtained from satellite measurements, field experiments, and modeled data products.


Photo: This image shows total sky Top-of-Atmosphere (TOA) shortwave flux from the CERES Single Scanner Footprint TOA/Surface Fluxes and Clouds (SSF) Aqua-FM3 Edition1B data for July 1, 2003.

Available Data

Data sets are listed under their main discipline. However, most of the data sets contain data for multiple disciplines.

  • Radiation Budget
    (Availability: Varies by data set, from 1978 to present | Coverage: Global for most data)

    Radiation budget data sets contain information related to the variability of total solar irradiance, top of atmosphere and surface radiation properties, effects of clouds on the energy budget, as well as data useful for renewable energy technologies.

    • Active Cavity Radiometer Irradiance Monitor (ACRIM) II and III
    • Airborne Multi-angle Imaging SpectroRadiometer (AirMISR)
    • ARM (Atmospheric Radiation Measurements) Enhanced Shortwave Experiment (ARESE)
    • Atlantic-THORpex Observing System Test (ATOST)
    • Convection And Moisture EXperiment (CAMEX) 4
    • Clouds and the Earth's Radiant Energy System (CERES)
    • Chesapeake Lighthouse and Aircraft Measurements for Satellites (CLAMS)
    • Earth Radiation Budget Experiment (ERBE)
    • Multi-angle Imaging SpectroRadiometer (MISR)
    • Nimbus-7 Earth Radiation Budget (ERB)
    • Sulfates/Smoke, Clouds, and Radiation (SCAR) A and B
    • Surface Radiation Budget (SRB)
    • Surface meteorology and Solar Energy (SSE)
    • THe Observing-system Research and predictability experiment (THORpex)
  • Clouds
    (Availability: Varies by data set, from 1980 to present | Coverage: Ranges in spatial extent from field campaign to global coverage)

    Cloud data sets contain information on the radiative properties of clouds; cirrus, marine stratus, and arctic cloud field studies; and subsonic aircraft effects on contrails and other cloud systems.

    • International Satellite Cloud Climatology Project (ISCCP)
    • First ISCCP Regional Experiment (FIRE)
    • SUbsonic aircraft: Contrail Cloud Effects Special Study (SUCCESS)
  • Aerosols
    (Availability: Varies by data set, from 1978 to present | Coverage: Ranges in spatial extent from field campaign to global coverage)

    Aerosol data sets contain satellite- and lidar-derived information on the spatial and vertical distribution of stratospheric and tropospheric aerosols, as well as direct radiative impacts and chemical, physical, and optical properties of aerosols.

    • 48-inch Light Detection and Ranging (LIDAR) Aerosol Research Branch (ARB)
    • Lidar Atmospheric Sensing Experiment (LASE)
    • Lidar In Space Technology Experiment (LITE)
    • Polar Ozone and Aerosol Measurement (POAM) II
    • Stratospheric Aerosol and Gas Experiment (SAGE) I, II, and III
    • Stratospheric Aerosol Measurement (SAM) II
    • Tropospheric Aerosol Radiative Forcing Observational eXperiment (TARFOX)
  • Tropospheric Chemistry
    (Availability: Varies by data set, from 1983 to present | Coverage: Ranges in spatial extent from field campaign to global coverage)

    Tropospheric chemistry includes geographic and temporal distribution of biomass burned, concentrations of key chemical species, and distribution and behavior of tropospheric carbon monoxide, ozone, and water vapor.

    • Biomass Burning
    • Global Tropospheric Experiment (GTE)
    • Measurement of Air Pollution from Satellites (MAPS)
    • Measurements of Pollution In The Troposphere (MOPITT)
    • NASA Water Vapor Project (NVAP)
    • North American Research Strategy for Tropospheric Ozone (NARSTO)
    • Special Sensor Microwave/Imager (SSM/I)
    • Tropospheric Emission Spectrometer (TES)


Caption: MOPITT 700 hPa CO mixing ratio for the period July 15-23, 2004, during the INTEX-NA field campaign. The intense wildfires in Alaska produced plumes of pollution that can be traced across North America and the Atlantic Ocean. Image provided by MOPITT Team.

Visualizations of Hurricane Jeanne
Photo: These visualizations of Hurricane Jeanne on September 24, 2004, were captured by the MISR instrument onboard the Terra satellite (Path 10, Orbit 25372). The panels include a natural color view from MISR's 26-degree forward-viewing camera (left) and a two dimensional map of cloud-top heights (right). Image provided by NASA/GSFC/ LaRC/JPL MISR Team.

Future Data Sets

  • Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO)
  • Fast Longwave and SHortwave radiation Fluxes (FLASHFlux)
  • Orbiting Carbon Observatory (OCO)

Data Access

There are multiple methods of obtaining data and information from the NASA Langley Atmospheric Science Data Center (ASDC) including ASDC ordering tools, Data Pool, Web download of renewable energy data (SSE), pre-packaged CDs, and EDG.

For assistance or additional information, contact:
User and Data Services
NASA Langley Research Center
Phone: +1 757-864-8656
Fax: +1 757-864-8807
E-mail: larc@eos.nasa.gov