www gfoi org SDCGUSGS Landsat 7 8 SDCG6

www. gfoi. org SDCG/USGS: Landsat 7 & 8 SDCG-6 Session 5: Roles and Responsibilities Data flows from CEOS agencies E. Fosnight (USGS) SDCG-6 Oslo, Norway October 22 -24, 2014

www. gfoi. org Landsat acquisition and delivery • Acquisition through with a global long term acquisition plan • Special requests are expected if priority increase is needed • Data access – Earth. Explorer/Glo. VIS – standing requests – Bulk Data Download – Machine-to-machine interfaces • Derived data products SDCG-6 Oslo, Norway October 22 -24, 2014

www. gfoi. org Landsat 8 Daily Limit Investigation • During the 2014 Northern Hemisphere Growing Season the daily imaging rate was gradually increased to establish upper bounds and an optimal daily imaging rate – Increased from 550 to 725 and held at 725 for 4+ cycles – Cloud cover prediction threshold was removed – Most day-lit descending land scenes with less than 50% side lap imaged (low latitudes) – Cloud avoidance to select best images for scenes with more than 50% side lap (high latitudes) Images scheduled for descending day-lit land images 550 650 725 High latitude 11, 616 (21. 4%) 15, 426 (28. 4%) 19, 471 (35. 8%) Low latitude 25, 914 (82. 8%) 29, 584 (94. 2%) 30, 913 (98. 4%) SDCG-6 Oslo, Norway October 22 -24, 2014

www. gfoi. org 550, 650 and 725 models SDCG-6 Oslo, Norway October 22 -24, 2014

www. gfoi. org Data Access through Earth. Explorer • All data (1972 -present) in the Landsat Archive are available for no cost – Newer data are held in a on-line cache – All other data is processed on demand – Landsat is moving to a combination of disk and tape to hold all data on either a fast or slow media • Reprocessing to maintain data quality as background activitiy SDCG-6 Oslo, Norway October 22 -24, 2014

www. gfoi. org Data Access through Earth. Explorer • Access to data by – Demand – Bulk data download – Machine-to Machine Interface • Once baseline data are acquire, database can be kept current with a subscription service to new data as they are acquired. SDCG-6 Oslo, Norway October 22 -24, 2014

www. gfoi. org CDR & ECV: Definitions • Climate data record (CDR) – A time series of measurements of sufficient length, consistency, and continuity to determine climate variability and change. Consistency in processing and reprocessing over years and decades is an essential requirement. • Essential climate variable (ECV) – Measurements that are technically and economically feasible for systematic observation. Variables that are currently feasible for global implementation for the Global Climate Observing System (GCOS), and have high impact on the UNFCCC and IPCC requirements. SDCG-6 Oslo, Norway October 22 -24, 2014

www. gfoi. org CDR and ECV: Goals • Provide continuity of observations and measurements to support modeling and decisionmaking • Construct long term data records to establish historical trends and enable future projections • Remove the burden of processing from the end user • Enable scientific assessments of land surface change – terrestrial monitoring SDCG-6 Oslo, Norway October 22 -24, 2014

www. gfoi. org Landsat CDR & ECV: Access SDCG-6 Oslo, Norway October 22 -24, 2014

Acquiring CDR & ECV Products SDCG-6 Oslo, Norway October 22 -24, 2014 www. gfoi. org

Prescriptive Levels of Processing www. gfoi. org Provide users with the product most suitable to their needs Scaled DNs TOA Reflectance Surface Reflectance On-demand surface reflectance products are available through Earth Explorer http: //earthexplorer. usgs. gov SDCG-6 Oslo, Norway October 22 -24, 2014

www. gfoi. org Aerosol Optical Thickness SDCG-6 Oslo, Norway October 22 -24, 2014

www. gfoi. org ETM+ and OLI Surface Reflectance SDCG-6 Oslo, Norway October 22 -24, 2014

www. gfoi. org TM Surface Temperature July 2, 2011 SDCG-6 Oslo, Norway October 22 -24, 2014

CDR & ECV Development Schedule CDR/ECV Target Provisional Target Public Release Surface Reflectance 2011 March 2012 October Land Surface Temperature 2015 June 2015 December Burned Area 2014 December 2015 June Surface Water Extent 2014 December 2015 June Snow Covered Area 2015 August 2015 December Biomass 2015 September 2016 June Criteria for Public Release § Algorithms published in peer reviewed journal § Methods for validation published in peer reviewed journal § Stakeholder engagement in product evaluation and feedback § Uncertainties are acceptable but need to be characterized, quantified, and documented SDCG-6 Oslo, Norway October 22 -24, 2014 www. gfoi. org

www. gfoi. org NASA MEa. SUREs • • Web-Enabled Landsat Data (WELD) Global Forest Cover Change (GFCC) Global Cropland Area Database (GCAD) NASADEM – SRTM PLUS (30 meter) release will follow – NASADEM (30 meter) release in early 2017 with preliminary release in 2015 -2016 30 with GDEM V 3 fill • Future Landsat/Sentinel-2 proposals SDCG-6 Oslo, Norway October 22 -24, 2014

www. gfoi. org Landsat Future… data model => information model • Land Change Monitoring, Assessment and Projection (LCMAP) – Per pixel, tiled, data cube • Partnership with Australia • Partnership with ESA/NASA – host copy of Sentinel-2 – Derived products – LCMAP SDCG-6 Oslo, Norway October 22 -24, 2014