AI-generated Key Takeaways
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The Advanced Spaceborne Thermal Emission and Reflection Radiometer Global Emissivity Database (ASTER-GED) was developed by NASA's Jet Propulsion Laboratory.
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This product includes data such as mean emissivity for ASTER Thermal Infrared bands, mean land surface temperature, a re-sampled ASTER GDEM, land-water mask, mean Normalized Difference Vegetation Index (NDVI), and observation count.
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ASTER-GED land surface temperature and emissivity are generated using the ASTER Temperature Emissivity Separation (TES) algorithm combined with a Water Vapor Scaling atmospheric correction method.
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This product was derived from clear-sky pixels from ASTER data collected between 2000 and 2008.
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ASTER data and products from LP DAAC, excluding ASTER GDEM v2, have no restrictions on use, sale, or redistribution.
- Dataset Availability
- 2000-01-01T00:00:00Z–2008-12-31T00:00:00Z
- Dataset Provider
- NASA LP DAAC at the USGS EROS Center
- Tags
Description
The Advanced Spaceborne Thermal Emission and Reflection Radiometer Global Emissivity Database (ASTER-GED) was developed by the National Aeronautics and Space Administration's (NASA) Jet Propulsion Laboratory (JPL), California Institute of Technology. This product includes the mean emissivity and standard deviation for all 5 ASTER Thermal Infrared bands, mean land surface temperature (LST) and standard deviation, a re-sampled ASTER GDEM, land-water mask, mean Normalized Difference Vegetation Index (NDVI) and standard deviation, and observation count.
ASTER-GED land surface temperature and emissivity (LST&E) are generated using the ASTER Temperature Emissivity Separation (TES) algorithm in combination with a Water Vapor Scaling (WVS) atmospheric correction method using MODIS MOD07 atmospheric profiles and the MODTRAN 5.2 radiative transfer model.
This product was derived from clear-sky pixels for all available ASTER data (2000-2008).
Bands
Pixel Size 100 meters
Bands
| Name | Units | Min | Max | Scale | Pixel Size | Description |
|---|---|---|---|---|---|---|
emissivity_band10
|
0 | 1000 | 0.001 | meters | Mean band 10 |
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emissivity_band11
|
0 | 1000 | 0.001 | meters | Mean band 11 |
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emissivity_band12
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0 | 1000 | 0.001 | meters | Mean band 12 |
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emissivity_band13
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0 | 1000 | 0.001 | meters | Mean band 13 |
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emissivity_band14
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0 | 1000 | 0.001 | meters | Mean band 14 |
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emissivity_sdev_band10
|
-1000 | 1000 | 0.0001 | meters | Standard deviation band 10 |
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emissivity_sdev_band11
|
-1000 | 1000 | 0.0001 | meters | Standard deviation band 11 |
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emissivity_sdev_band12
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-1000 | 1000 | 0.0001 | meters | Standard deviation band 12 |
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emissivity_sdev_band13
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-1000 | 1000 | 0.0001 | meters | Standard deviation band 13 |
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emissivity_sdev_band14
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-1000 | 1000 | 0.0001 | meters | Standard deviation band 14 |
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temperature
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K | 0 | 65535 | 0.01 | meters | Temperature mean |
temperature_sdev
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K | 0 | 65535 | 0.01 | meters | Temperature standard deviation |
ndvi
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0 | 100 | 0.01 | meters | NDVI mean |
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ndvi_sdev
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0 | 100 | 0.01 | meters | NDVI standard deviation |
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elevation
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m | -500 | 9000 | meters | ASTER Global Digital Elevation Model V002 |
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land_water_map
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meters | Land water map |
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num_obs
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Number per pixel | 0* | 120* | meters | Number of observations |
land_water_map Class Table
| Value | Color | Description |
|---|---|---|
|
1
|
brown | Land |
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2
|
blue | Water |
Terms of Use
Terms of Use
ASTER data and products distributed by the LP DAAC, with the exception of the ASTER Global Digital Elevation Model (GDEM) dataset (ASTGTM) version 2 (v2), have no restrictions on data use, sale, or subsequent redistribution. For more information visit the ASTER Policies site.
Citations
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Please visit LP DAAC 'Citing Our Data' page for information on citing LP DAAC datasets.
DOIs
Explore with Earth Engine
Code Editor (JavaScript)
var dataset = ee . Image ( 'NASA/ASTER_GED/AG100_003' ); var elevation = dataset . select ( 'elevation' ); var elevationVis = { min : - 15.0 , max : 5000.0 , palette : [ '0602ff' , '235cb1' , '307ef3' , '269db1' , '30c8e2' , '32d3ef' , '3ae237' , 'b5e22e' , 'd6e21f' , 'fff705' , 'ffd611' , 'ffb613' , 'ff8b13' , 'ff6e08' , 'ff500d' , 'ff0000' , 'de0101' , 'c21301' ], }; Map . setCenter ( 89.12 , 37.72 , 3 ); Map . addLayer ( elevation , elevationVis , 'Elevation' );
