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www.earthobservations.org www.gfoi.org SDCG-4, Pasadena, CA/USA September 4-6, 2013 SDCG-4 Session 4 GFOI Space Data Services Core Data Value Adding USGS Update Tom Cecere
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www.earthobservations.org www.gfoi.org GLOBAL WELD Prototype: Global 2010 Growing Season Landsat 7 Source: David Roy, South Dakota State University
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www.earthobservations.org www.gfoi.org Global May 2010 WELD Composite: Landsat 5 and 7 Source: David Roy, South Dakota State University
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www.earthobservations.org www.gfoi.org Dec. 2009 March 2010 June 2010 Sept. 2010 Oct. 2010Nov. 2010 Jan. 2010 April 2010 July 2010 Feb. 2010 May 2010 August 2010
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www.earthobservations.org www.gfoi.org SDCG-4, Pasadena, CA/USA September 4-6, 2013 USGS CDR & ECV Development Derived from data acquired by Landsat 4 – 8 Derived from data acquired by Landsat 4 – 8 Climate Data Records (CDRs) Climate Data Records (CDRs) – Surface Reflectance – Surface Temperature Essential Climate Variables (ECVs) Essential Climate Variables (ECVs) – Global 30m Land Cover – Burned Area – Snow Covered Area – Surface Water Extent – Above Ground Biomass
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www.earthobservations.org www.gfoi.org SDCG-4, Pasadena, CA/USA September 4-6, 2013 Mosaic of Adjacent Scenes (L1T) 42/34 JUL 28 06 43/34 JUL 22 07
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www.earthobservations.org www.gfoi.org SDCG-4, Pasadena, CA/USA September 4-6, 2013 Surface Reflectance 42/34 JUL 28 06 43/34 JUL 22 07
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www.earthobservations.org www.gfoi.org SDCG-4, Pasadena, CA/USA September 4-6, 2013 Prescriptive Levels of Processing Scaled DNs TOA Reflectance Surface Reflectance Provide users with the product most suitable to their needs On-demand surface reflectance products are available through Earth Explorer http://earthexplorer.usgs.gov
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