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Global Change Master Directory (GCMD)
Land Surface Reflectance - GLS2010
Entry ID: land_surf_ref_gls2010


Summary
Abstract: The surface reflectance CDR is generated from specialized software called Landsat Ecosystem Disturbance Adaptive Processing System (LEDAPS). LEDAPS was originally developed through a National Aeronautics and Space Administration (NASA) Making Earth System Data Records for Use in Research Environments (MEaSUREs)grant by NASA Goddard Space Flight Center (GSFC) and the University of Maryland (Masek et al., 2006). The software applies Moderate Resolution Imaging Spectroradiometer (MODIS) atmospheric correction routines to Level-1 Landsat Thematic Mapper (TM) or Enhanced Thematic Mapper Plus (ETM+)data. Water,vapor, ozone, geopotential height, aerosol optical thickness,and digital elevation are input with Landsat data to the Second Simulation of a Satellite Signal in the Solar Spectrum (6S) radiative transfer models to generate top of atmosphere (TOA)reflectance, surface reflectance, brightness temperature, and masks for clouds, cloud shadows, adjacent clouds, land, and water. The result is delivered as the Landsat surface reflectance CDR.

Purpose: The USGS has embarked on production of higher-level Landsat data products to support land surface change studies.

Related URL
Link: View Related Information
Description: Data set searching and ordering capabilities are available through EarthExplorer at the above URL.

Geographic Coverage
 N: 90.0 S: -90.0  E: 180.0  W: -180.0

Data Set Citation
Version: Not provided


Temporal Coverage
Start Date: 1970-01-01


Location Keywords
GEOGRAPHIC REGION > GLOBAL


Science Keywords
LAND SURFACE >SURFACE RADIATIVE PROPERTIES >ALBEDO    [Definition]
LAND SURFACE >TOPOGRAPHY >TERRAIN ELEVATION >TOPOGRAPHICAL RELIEF MAPS    [Definition]


Platform
LANDSAT-5    [Information]
LANDSAT-7    [Information]


Instrument
ETM+ >Enhanced Thematic Mapper Plus    [Information]
TM >Thematic Mapper    [Information]


Access Constraints
None


Use Constraints
There is no guarantee of warranty concerning the accuracy of these data. Users should be aware that temporal changes may have occurred since the data was collected and that some parts of these data may no longer represent actual surface conditions. Users should not use these data for critical applications without a full awareness of their limitations. Acknowledgement of the originating agencies would be appreciated in products derived from these data. Any user who modifies the data set is obligated to describe the types of modifications they perform. User specifically agrees not to misrepresent the data set, nor to imply that changes made were approved or endorsed by the U.S. Geological Survey. Please refer to http://www.usgs.gov/privacy.html for the USGS disclaimer.


Keywords
imagery
reflectance
CDR
EROS


Data Set Progress
ACTIVE


Data Center
Earth Resources Observation and Science Center, U.S. Geological Survey, U.S. Department of the Interior    [Information]
Data Center URL: https://www.usgs.gov/centers/eros

Data Center Personnel
Name: ANNIEPAT JOHNSON
Phone: 605-594-6973
Email: lta at usgs.gov
Contact Address:
EROS
City: Sioux Falls
Province or State: SD
Postal Code: 57198
Country: USA



Distribution
Distribution_Media: Digital
Distribution_Format: Download
Fees: None


Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2013-06-18
Last DIF Revision Date: 2019-03-25



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