N: 83 S: -83 E: 180 W: -180
Description
The Terra Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Surface Emissivity (AST_05) is produced using the Temperature/Emissivity Separation (TES) algorithm for the five Thermal Infrared (TIR) 90 meter bands, acquired during the day or night. The product comprises per-pixel emissivity measurements generated over land in addition to embedded metadata and quality assurance data planes.
Known Issues
- Level 2 products that are on the international date line/anti-meridian have incorrect bounding coordinates for the Universal Transverse Mercator (UTM) zone defined in the file metadata.
Version Description
Product Summary
Citation
Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.
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File Naming Convention
The file name begins with the Product Short Name (AST_05), followed by the 3-digit Version Number plus the Date and Time of Acquisition designated as MMDDYYYYHHMMSS (00401232021224404), Date and Time of Processing designated as YYYYMMDDHHMMSS (20250912131239), Product Type (SRE), Band Type (TIR), Band/Variable (B11), and the Data Format (tif).
Documents
USER'S GUIDE
ALGORITHM THEORETICAL BASIS DOCUMENT (ATBD)
Variables
The table below lists the variables contained within a single granule for this dataset. Variables often contain observed or derived geophysical measurements collected from a variety of sources, including remote sensing instruments on satellite and airborne platforms, field campaigns, in situ measurements, and model outputs. The terms variable, parameter, scientific data set, layer, and band have been used across NASA’s Earth science disciplines; however, variable is the designated nomenclature in NASA’s Common Metadata Repository (CMR). Variable metadata attributes such as Name, Description, Units, Data Type, Fill Value, Valid Range, and Scale Factor allow users to efficiently process and analyze the data. The full range of attributes may not be applicable to all variables. Additional information on variable attributes is typically available in the data, user guide, and/or other product documentation.
For questions on a specific variable, please use the Earthdata Forum.
| Name Sort descending | Description | Units | Data Type | Fill Value | Valid Range | Scale Factor |
|---|---|---|---|---|---|---|
| TIR_Band10 | 90 meter resolution TIR Band 10 (8.125 to 8.475 µm) | N/A | uint16 | N/A | 0 to 65535 | 0.001 |
| TIR_Band11 | 90 meter resolution TIR Band 11 (8.475 to 8.825 µm) | N/A | uint16 | N/A | 0 to 65535 | 0.001 |
| TIR_Band12 | 90 meter resolution TIR Band 12 (8.925 to 9.275 µm) | N/A | uint16 | N/A | 0 to 65535 | 0.001 |
| TIR_Band13 | 90 meter resolution TIR Band 13 (10.25 to 10.95 µm) | N/A | uint16 | N/A | 0 to 65535 | 0.001 |
| TIR_Band14 | 90 meter resolution TIR Band 14 (10.95 to 11.65 µm) | N/A | uint16 | N/A | 0 to 65535 | 0.001 |