|
After a successful
launch in December 1999, Terra instruments began science operations on
February 24, 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 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.
Chart showing spectral bandwidth for each instrument
Data Processing Level Definitions
Data Processing Level Definitions
|
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
|
Uses for the Data collected by Terra Instruments.
|
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 |
|
