Data Products

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ASTER: Advanced Spaceborne Thermal Emission and Reflection Radiometer

ASTER Data Products

ASTER Data Product Architecture
ASTER Product Version Table
Simulated Data Set

ASTER provides the user community with Standard Data Products throughout the life of the mission. Algorithms to compute these products were created by the ASTER Science Team, and are implemented at the EDC DAAC. Users can order these products through the EOS Data Gateway.

The Product Version Table provides a variety of product history information. This table will be very useful for users who need to know the dates and Release Designations associated with different versions of the software (or "PGE") used to generate the products. For the Level 1 products, complete version history is available in the Level 1 Release Notes that are maintained by Japan.

Standard data products

Level	Product	Description	Release Status *	Release Notes
1A	Radiance at sensor	Image data plus radiometric and geometric coefficients. Data are separated by telescope	Validated	Japan Maintained
1B	Registered radiance at sensor	1A data with radioimetric and geometric coefficients applied	Validated	Japan Maintained
1AE	Radiance at sensor	This is the initial version of the Expedited L1AE data product created from ASTER Expedited Level-0. Image data plus radiometric and geometric coefficients. Data are separated by telescope	Validated	Notes
1BE	Registered radiance at sensor	This is the initial version of the Expedited L1BE data product created from ASTER Expedited Level-1AE. 1AE data with radioimetric and geometric coefficients applied	Validated	Notes
2	AST06 Decorrelation stretch	Enhanced color composites for each telescope	Validated	Notes
2	AST04 Brightness temperature	Radiance at the sensor converted to temperarture	Validated	Notes
2	AST09 Surface radiance-VNIR,SWIR	Radiance corrected for atmospheric effects	Validated	Notes
2	AST09T Surface radiance-TIR	Radiance corrected for atmospheric effects	Validated	Notes
2	AST07 Surface reflectance-VNIR,SWIR	Derived from surface radiance with topographic corrections	Validated	Notes
2	AST08 Surface kinetic temperature	Temperature-emissivity separation algorithm applied to atmospherically corrected surface radiance data.	Validated	Notes
2	AST05 Surface emissivity	Temperature-emissivity separation algorithm applied to atmospherically corrected surface radiance data.	Validated	Notes
2	AST13. Polar Surface and Cloud Classification	Classifies each pixel of polar scenes into one of eight classes: water cloud, ice cloud, aerosol/dust, water, land, snow/ice, slush ice, and shadow.	Provisional	Notes
4	AST14 Digital elevation model	DEM produced by stereo correlation of nadir and aft Band 3 data
	- Absolute DEM	Geolocated	Validated	Notes
	- Relative DEM	Not Geolocated	Validated	Notes

* Release Status:

Available soon. This product is currently undergoing testing and is not ready for public release.
Beta. This is an early release product that is only minimally validated and may still contain significant errors. It is made available largely to allow users to gain familiarity with data formats and parameters, and should not be used as the basis for quantitative scientific publications.
Provisional. This product is only partially validated. Under some circumstances it may be useful in scientific publications, however, because validation is not complete it may have reduced accuracy. Caution is strongly advised, and the product should be identified as "provisional" in any publications.
Validated. This product has been formally validated and is ready for use in scientific publications. Later, improved versions may be released.

ASTER

Applications	Team	Documents	Publications & Meeting Presentations
Spectral Library	Airborne Simulator	Phone Book	Image Gallery

CL 97-1376

60,082 hits since 09/17/99.
Updated: 10/7/2002 8:09:29 AM

Questions? Comments? Contact:
Howard L Tan