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Projects Supported |
Each project listed below has a Table of Available Data Sets along with links to ordering mechanisms and supporting documentation for the data available from the Langley DAAC. If you have questions or comments or need additional information on any of the projects supported or data sets available from Langley, please contact User Services.
AIRMISR is an airborne instrument for obtaining multi-angle imagery similar to that of the satellite-borne MISR instrument, which is designed to contribute to studies of the Earth's ecology and climate. AirMISR flies on the NASA-owned ER-2 aircraft. The instrument was built for NASA by the Jet Propulsion Laboratory in Pasadena, California.
A ground-based 48-inch LIDAR system has been obtaining semi-regular measurements at the NASA Langley Research Center since May 1974. These high resolution vertical measurements have resulted in a valuable long-term record of the mid-latitude upper tropospheric and stratospheric aerosol. These data have been used in scientific studies such as in studies of volcanic eruptions and in comparisons with satellite data.
A DoE - NASA collaboration designed to measure absorption of solar radiation in the cloudy atmosphere by measuring the upwelling and downwelling radiative fluxes using three aircraft flying at the tropopause, near cloud top, and below cloud base.
ATOST is part of an international research program to accelerate improvements in the accuracy of 1 to 14 day weather forcasts.
This data set represents the geographical and temporal distribution of total amount of biomass burned. These data may be used in general circulation models (GCMs) and in photochemical models of the atmosphere.
CALIPSO will study the impact of clouds and aerosols on the Earth's radiation budget and climate.
This fourth study yields high spatial and temporal information of hurricane structure, dynamics, and motion. Instrumented aircraft have flown over, through, and around selected hurricanes as they approached landfall in the Carribean, Gulf of Mexico, and along the East Coast of the United States.
This project is primarily a shortwave closure experiment designed to validate and improve EOS Terra satellite data products derived from three sensors: CERES, MISR, and MODIS.
CERES is a key component of the Earth Observing System (EOS) program. The CERES instrument provides radiometric measurements of the Earth's atmosphere from three broadband channels. The CERES instruments are improved models of the Earth Radiation Budget Experiment (ERBE) scanner instruments, which operated from 1984 through 1990 on NASA's Earth Radiation Budget Satellite (ERBS) and on NOAA's operational weather satellites NOAA-9 and NOAA-10.
Data were collected from three satellites (ERBS, NOAA-9, NOAA-10) carrying two ERBE instruments (scanner, nonscanner). The objective was to measure global albedo, fluxes and solar incidence.
A series of field missions which have collected cirrus and marine stratocumulus cloud parameters from aircraft, satellite and surface-based measurements.
A major component of the NASA Tropospheric Chemistry Program, GTE consists of a series of airborne field experiments designed to (1) evaluate the capability of instrument techniques to measure, under field conditions, the minute concentrations of key chemical species in the atmosphere and (2) systematically address tropospheric chemistry issues relevant to global change, through airborne sampling expeditions, coupled with modeling and laboratory studies.
ISCCP focuses on the study of the distribution and variation of cloud radiative properties to improve the understanding of the effects of clouds on climate, the radiation balance, and the long-term global hydrologic cycle.
An airborne autonomous DIAL system has been developed to measure water vapor, aerosol, and cloud profiles. These measurements can be used in various atmospheric investigations, including studies of air mass modification, latent heat flux, the water vapor component of the hydrologic cycle, and atmospheric transport using water vapor as a tracer of atmospheric motions. The simultaneous measurement of aerosol and cloud distributions can provide important information on atmospheric structure and transport, and many meteorological parameters can also be inferred from these data.
Using a laser, a telescope approximately 1 meter in diameter and a modular design, the system was used to study clouds, tropospheric and stratospheric aerosols, characteristics of the planetary boundary layer, stratospheric density and temperature perturbations, and to some degree, surface topography.
Data were collected during Space Shuttle flights in 1981, 1984 and 1994. The main pollutant measured was carbon monoxide (CO).
MOPITT will generate atmospheric profiles of CO using thermal radiation at 4.7 um. Column carbon monoxide and methane are measured using channels at 2.4 and 2.3 um, respectively, to sense solar radiation from the surface.
MISR measurements are designed to improve our understanding of the Earth's environment and climate. Viewing the sunlit Earth simultaneously at nine widely-spaced angles, MISR provides radiometrically and geometrically calibrated images in four spectral bands at each of the angles.
The NASA Water Vapor Project (NVAP) total column (integrated) water vapor data sets are comprised of a combination of radiosonde observations, Television and Infrared Operational Satellite (TIROS) Operational Vertical Sounders (TOVS), and Special Sensor Microwave/Imager (SSM/I) data sets. This is an 8-year total and layered (1988 - 1995) global water vapor data set.
The objectives of ERB are 1) to obtain accurate measurements of solar irradiance, monitor its variation in time, and observe the temporal variation of the solar spectrum: and 2) to determine the Earth radiation budget from simultaneous measurements of the incoming solar radiation and the outgoing Earth-reflected and Earth-emitted radiation.
The primary mission is to coordinate and enhance scientific research and assessment of tropospheric ozone behavior, with the central programmatic goal of determining workable, efficient, and effective strategies for local and regional ozone management.
The POAM II instrument measures the vertical distribution of atmospheric ozone, nitrogen dioxide, and aerosol extinction. It was launched in September 1993 and data are available from October 1993 through November 1996.
The POAM III instrument measures the vertical distribution of atmospheric ozone, water vapor, nitrogen dioxide, and aerosol extinction. It was launched in March 1998.
The Prabhakara SMMR atmospheric liquid water (ALW) and integrated atmospheric water vapor (IWV) data sets were generated by Dr. Prabhakara Cuddapah at the Goddard Space Flight Center (GSFC) using SMMR antenna temperatures. The ALW data span the period February 1979 through May 1994. The IWV data span the period October 1979 through September 1983.
Data include physical and chemical components of the Earth's surface, the atmosphere and the radiation field collected in the eastern part of the United States with an emphasis in air pollution.
Data include physical and chemical components of the Earth's surface, the atmosphere and the radiation field collected in Brazil with an emphasis in biomass burning.
Vertically integrated water vapor and cloud liquid water data products were derived over the oceans from measurements of the Special Sensor Microwave/Imager on the DMSP F-8 satellite.
SAGE I gathered data concerning the spatial distribution of stratospheric aerosols, ozone and nitrogen dioxide on a global scale.
The goals of SAGE II are to determine the spatial distributions of stratospheric aerosols, ozone, nitrogen dioxide, water vapor and cloud occurrence by mapping vertical profiles and calculating monthly averages of each.
SAGE III will obtain global profiles of aerosols, ozone, water vapor, nitrogen dioxide, nitrogen trioxide, chlorine dioxide, clouds, temperature and pressure in the mesosphere, stratosphere and troposphere.
Data obtained from the SAM II instrument, which flew on board the Nimbus-7 satellite, are used to determine the vertical distribution of stratospheric aerosols in the polar regions of both hemispheres.
SUCCESS is a NASA field program using scientifically instrumented aircraft and ground based measurements to investigate the effects of subsonic aircraft on contrails, cirrus clouds and atmospheric chemistry.
The SRB data sets were calculated using inputs from ISCCP and ERBE data and are designed to give global averages of albedo, shortwave and longwave radiative fluxes, cloud amount, and meteorology.
The Release 3 Surface meteorology and Solar Energy (SSE) data set contains parameters formulated for assessing and designing renewable energy systems. This latest release contains new parameters based on recommendations by the renewable energy industry and it is more accurate than previous releases. Its on-line plotting capabilities allow quick evaluation of potential renewable energy projects for any region of the world.
The overall goal of the Tropospheric Aerosol Radiative Forcing Observational Experiment (TARFOX) is to reduce uncertainties in the effects of aerosols on climate by determining the direct radiative impacts, as well as the chemical, physical, and optical properties, of the aerosols carried over the western Atlantic Ocean from the United States.
TES will generate 3-D profiles on a global scale of virtually all infrared-active species from Earth's surface to the lower stratosphere.
THORpex is a ten-year international research program where the primary objective is to accelerate improvements in short range weather predictions and warnings over the Northern Hemisphere.
Daily total solar irradiances collected from the UARS Active Cavity Radiometer Irradiance Monitor II (ACRIM II) are available for the period October 4, 1991 through December 1996.
Daily total solar irradiances will be collected from the ACRIMSAT Active Cavity Radiometer Irradiance Monitor III (ACRIM III).