Science Keywords>OCEANS
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ASTER On-Demand L2 Surface Temperature Entry ID: AST_08 |
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Summary
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Abstract:
The ASTER On-Demand Level-2 Surface Temperature product uses the 5 thermal infrared (TIR) Bands (acquired day or night) between the 8 and 12 micrometers spectral range to provide surface temperatures at a 90 meter spatial resolution for land areas only. Surface Kinetic Temperature provides a vital input to studies of volcanism, thermal inertia, surface energy, and high-resolution mapping of fires. The ASTER On-Demand Level-2 Surface Temperature product uses the same algorithm as the Surface Emissivity product. The surface kinetic temperature is determined by applying Planck's Law using the emissivity values from the Temperature-Emissivity Separation (TES) algorithm, which uses atmospherically corrected ASTER Surface Radiance TIR data. The TES algorithm first estimates emissivities in the TIR channels using the Normalized Emissivity Method (NEM). These estimates are used along with Kirchoff's Law to account for the land-leaving TIR radiance that is due to sky irradiance. That figure is subtracted from TIR radiance iteratively to estimate the emitted radiance from which temperature is calculated using the NEM module. Data Set Characteristics: Area: ~60 km x 60 km Image Dimensions: 700 rows x 830 columns File Size: ~3.5 Megabytes Units: (?K) (T multiplied by 0.1) Projection: Universal Transverse Mercator (UTM) Data Format: HDF-EOS Vgroup Data Fields: 1 |
Related URL
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Link:
GET DATA
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REVERB
Description: Access the data page for the ASTER On-Demand L2 Surface Temperature . Link: VIEW PROJECT HOME PAGE Description: The Land Processes Distributed Active Archive Center (LP DAAC) home page contains information about the LP DAAC, its products, and its services. The Web site also provides access to NASA's Earth Observing System (EOS) Data Gateway, which is a Web-based query system providing information on this data set and on a variety of other data sets. The EOS Data Gateway also supports data visualization and ordering services. |
Geographic Coverage
| N: 90.0 | S: -90.0 | E: 180.0 | W: -180.0 |
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Data Set Citation
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Dataset Originator/Creator:
LP DAAC
Dataset Title: ASTER On-Demand L2 Surface Temperature Online Resource: http://lpdaac.usgs.gov |
Location Keywords
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GEOGRAPHIC REGION
> GLOBAL
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Data Resolution
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Latitude Resolution:
90m
Longitude Resolution: 90m |
Science Keywords
| LAND SURFACE >LAND TEMPERATURE >LAND SURFACE TEMPERATURE [Definition] |
| OCEANS >OCEAN TEMPERATURE >SEA SURFACE TEMPERATURE [Definition] |
ISO Topic Category
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GEOSCIENTIFIC INFORMATION
OCEANS |
Platform
| TERRA >Earth Observing System, TERRA (AM-1) [Information] |
Instrument
| ASTER >Advanced Spaceborne Thermal Emission and Reflection Radiometer [Information] |
Project
| EOSDIS >Earth Observing System Data Information System [Information] |
| ESIP >Earth Science Information Partners Program [Information] |
Quality
| Sensor anomalies may be present. |
Access Constraints
| None. |
Use Constraints
| None. |
Keywords
| LP DAAC |
| EOSDIS |
| USGS/EROS |
| ESIP |
| USGS |
| LPDAAC |
Data Set Progress
| COMPLETE |
Originating Center
| USGS/EROS |
Data Center
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Land Processes Distributed Active Archive Center
[Information]
Data Center URL: https://lpdaac.usgs.gov/ Dataset ID: AST_08
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Distribution
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Distribution_Media:
FTP
Distribution_Size: 4 MB Distribution_Format: HDF-EOS, GeoTIFF Fees: $80 per granule & $5 Handling Fee per order; No fee to NASA personnel. |
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Distribution_Media:
DVD
Distribution_Size: 4 MB Distribution_Format: HDF-EOS, GeoTIFF Fees: $91 per granule & $5 Handling Fee per order; No fee to NASA personnel. |
Personnel
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LP DAAC USER SERVICES Role: TECHNICAL CONTACT Phone: (Toll Free) (866) 573-3222 Phone: (605) 594-6116 Fax: (605) 594-6963 Email: LPDAAC at usgs.gov Contact Address: LP DAAC User Services U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center 47914 252nd Street City: Sioux Falls Province or State: SD Postal Code: 57198-0001 Country: USA |
Creation and Review Dates
DIF Creation Date:
2002-08-06
Last DIF Revision Date:
2012-02-14
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