[Parameters: Topic='SPECTRAL/ENGINEERING', Term='INFRARED WAVELENGTHS', Variable_Level_1='INFRARED IMAGERY']
ASTER On-Demand L2 Decorrelation Stretch SWIREntry ID: AST_06SD
Abstract: This product is discontinued.
The ASTER On-Demand L2 Decorrelation Stretch SWIR (short wave infrared) is an on-demand product with user-specified processing options. Users need to pick three from the available six SWIR spectral Bands as input. This product is a color-enhanced image of the SWIR radiance data, produced from a Level-1B data set. Decorrelation stretch is a process used to enhance ... the color differences in an image by removing the inter-band correlation in the radiance values of the input SWIR pixels. Such an image provides a general overview that emphasizes reflectance and emissivity variations, and restrains variations owing to topography and temperature. The general purpose of a decorrelation stretched image is to serve as a data visualization tool while reviewing and selecting ASTER image data for further analysis and research.
The decorrelation stretch product algorithm calculates the principal components of a three-band SWIR image. Each component is rescaled or contrast-stretched by normalizing the variances of the vectors, and rotated back into the RGB color space.
V002 data set release date: 2000-12-22
V003 data set release date: 2002-05-03
The key determinants between these versions are the use of a newer algorithm with an improved set of radiometric calibration and geometric correction coefficients databases in version 003.
Data Set Characteristics:
Area: ~60 km x 60 km
Image Dimensions: 2100 rows x 2490 columns
File Size: ~22 Megabytes
Projection: Universal Transverse Mercator (UTM)
Data Format: HDF-EOS or GeoTIFF
Vgroup Data Fields: 3
(Click for Interactive Map)
Data Set Citation
Dataset Originator/Creator: Land Processes Distributed Active Archive Center
Dataset Title: ASTER On-Demand L2 Decorrelation Stretch SWIR
Dataset Release Date: 2000-12-22
Dataset Release Place: Sioux Falls, South Dakota, USA
Dataset Publisher: U.S. Geological Survey
Version: V002, V003Online Resource: https://lpdaac.usgs.gov
Start Date: 2000-12-22Stop Date: 2010-05-13
Latitude Resolution: 30m
Longitude Resolution: 30m
Horizontal Resolution Range: 30 meters - < 100 meters
ISO Topic Category
Quality Sensor anomalies may be present.
Access Constraints This product is discontinued.
Use Constraints See https://lpdaac.usgs.gov/products/aster_policies for redistribution and citation policies.
Data Set Progress
Distribution Media: HTTP
Role: TECHNICAL CONTACT
Phone: (Toll Free) (866) 573-3222
Phone: (605) 594-6116
Fax: (605) 594-6963
Email: LPDAAC at usgs.gov
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
Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) publication references: [available online at http://asterweb.jpl.nasa.gov/asterbiblio20120719.pdf]
National Aeronautics and Space Administration, revised 2004, EOS Reference Handbook, a Guide to NASA's Earth Science Enterprise and the Earth Observing System: Greenbelt, Maryland, Goddard Space Flight Center, 261 p. [available online in pdf format at http://eospso.gsfc.nasa.gov/ftp_docs/data_products_1.pdf].
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2002-08-05
Last DIF Revision Date: 2013-01-30