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Mount Oyama Eruptions -- Terra Mission -- Data -- Tools -- CD Home |
Terra Instrument Data
After a successful launch in December 1999, the instruments on Terra began science operations on 24 February 2000, following completion of final orbital maneuvers to phase with the orbit of Landsat 7. The release dates of specific data products depend on the complexity of the product and successful calibration and validation. The data quality from all of Terra's sensors appears to be exceptional. Current and subsequent processing of the data will yield enhanced scientific utility.
Teams of scientists
worldwide have already been selected to receive the data to perform research
in areas of international concern. Additionally, EOS data and products
will be available to all users, without restriction, at no more than the
cost of dissemination, regardless of the intended use.
| Processing Level |
Definition |
|---|---|
| Level 0 | Reconstructed, unprocessed data at full resolution; all communications artifacts have been removed |
| Level 1 | Level 0 data that has been time-referenced and annotated with ancillary information, including radiometric and geometric calibration coefficients, and geolocation information |
| Level 2 | Derived geophysical variables at the same resolution and location as the Level 1 data |
| Level 3 | Variables mapped on uniform space-time grids, usually with some completeness and consistency |
| Level 4 | Model output or results from analyses of lower level data |
| Disciplines |
Measurement |
Terra Instrument |
|---|---|---|
| Atmosphere | Cloud Properties | MODIS, MISR, ASTER |
| Radiative Energy Fluxes | CERES, MODIS, MISR | |
| Tropospheric Chemistry | MOPITT | |
| Aerosol Properties | MISR, MODIS | |
| Atmospheric Temperature | MODIS | |
| Atmospheric Humidity | MODIS | |
| Land | Land Cover and Land Use Change | MODIS, MISR, ASTER |
| Vegetation Dynamics | MODIS, MISR, ASTER | |
| Surface Temperature | MODIS, ASTER | |
| Fire Occurrence | MODIS, ASTER | |
| Volcanic Effects | MODIS, MISR, ASTER | |
| Ocean | Surface Temperature | MODIS |
| Phytoplankton and Dissolved Organic Matter | MODIS, MISR | |
| Cryosphere | Land Ice Change | ASTER |
| Sea Ice | MODIS, ASTER | |
| Snow Cover | MODIS, ASTER |
Instrument Data Web Sites
The EOS Data and Information System (EOSDIS): http://terra.nasa.gov/Brochure/Sect_5-1.html