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AMSR-E and AMSR-E Validation Status at NSIDC

AMSR-E and AMSR-E Validation Status at NSIDC. Amanda Leon, NSIDC AMSR-E Lead Joint AMSR-E Science Team Meeting Oxnard, CA 4-5 September 2013. Outline. Standard Products Status Metrics AMSR-E Related Products Status Metrics Data Access & Discovery User Support

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AMSR-E and AMSR-E Validation Status at NSIDC

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  1. AMSR-E and AMSR-E ValidationStatus at NSIDC Amanda Leon, NSIDC AMSR-E Lead Joint AMSR-E Science Team Meeting Oxnard, CA 4-5 September 2013

  2. Outline • Standard Products • Status • Metrics • AMSR-E Related Products • Status • Metrics • Data Access & Discovery • User Support • Data Quality Information • Long Term Archival Sea ice derived from the AMSR-E 89 GHz Tbs. Image courtesy of NASA/GSFC Visualization Studio

  3. Standard Products: Status • Level-2A Version 3 announced to public on 14 June 2013 • Reprocessing completion announced 26 July 2013 • Version 2 will be publicly available for 6 months post reprocessing (27 Jan) • Level-3 Sea Ice Products • Reprocessing initiated in September 2012 to integrate a new Antarctic land mask. • Integration of mask caused valid data in SH to be masked in 12.5 & 25 km Sea Ice Concentration and 6.25 Sea Ice Drift • Removed affected data and republished previous version • Awaiting another reprocessing effort nsidc.org/data/amsre

  4. Archive Metrics: Volume • 1 June 2002 – 31 July 2013 Current Version Archive Volume Total Current Version Archive: 16.4 TB Total Archive (V001, V002, V003): 28 TB • Archive retention plan: • Keep the Current Version and the Previous Versionof all products. • Keep All Versions of L2A Stats from EMS

  5. Distribution Metrics: Total Sorted on Volume 1 June 2002 – 31 July 2013 Total Distribution: 589 TBs 24.3 million files Stats from EMS

  6. Distribution Metrics: Files Jan 2004 – July 2013File Distribution Stats from EMS

  7. Distribution Metrics: Files Jan 2011 – Jul 2013 Files/Month Antenna Spin Down 10/4/2011 Jan 2013: L2A Dec 2012: L2A & L2B Land, Ocean, Rain Mar 2013: L2A & L2B Rain

  8. Distribution Metrics: Volume Jan 2004 – July 2013Volume (GB) Distribution

  9. Distribution Metrics: Volume Jan 2011 – Jul 2013 GB/Month Antenna Spin Down 10/4/2011 Jan 2013: L2A & L3 Land Mar 2013: L2A & L3 Land Joint AMSR-E Science Team Meeting Amanda Leon - NSIDC DAAC 4-5 September 2013

  10. Distribution Metrics: Users 1 June 2002 – 31 July 2013 2,519 Total Distinct Users U.S. Users – 46% Foreign Uses - 54% Stats from EMS & USO TRAK Database

  11. Distribution Metrics: Users Jan 2003 – Jul 2013 Total Distinct Users per Year Stats from USO TRAK Database

  12. Distribution Metrics Top 10 Countries by Fiscal Year (by Volume, Files, and Users) FY 2012 FY 2013

  13. AMSR-E Related Products AMSR-E Validation Data nsidc.org/data/amsr_validation/ • No changes Other AMSR-E Related Products • John Kimball’s MEaSUREs Global Record of Freeze/Thaw nsidc.org/data/nsidc-0477.html • Version 2 Release • AMSR-E Global Land Surface Emissivity nsidc.org/data/nsidc-0543.html • HamidrezaNorouzi; New York City College of Technology, The City University of New York (CUNY) • On the horizon: Aquarius Soil Moisture; AMSR2; SMAP

  14. AMSR-E Validation: Distribution Metrics Total Distinct Users Per YearJan 2011 – July 2013 Statistics from our University FTP logs

  15. AMSR-E Validation: Distribution Metrics Total Files Distributed Per YearJanuary 2011 - July 2013 Statistics from our University FTP logs

  16. AMSR-E Validation: Distribution Metrics Total Volume (MB) Distributed Per YearJanuary 2011 – July 2013 Statistics from FTP logs

  17. Other AMSR-E Related Products

  18. Other AMSR-E : Distribution Metrics Jan 2007 – Jul 2013 Files per Year

  19. Other AMSR-E: Distribution Metrics Jan 2007 – Jul 2013 MBs per Year Joint AMSR-E Science Team Meeting Amanda Leon - NSIDC DAAC 3-4 September 2013

  20. Other AMSR-E: Distribution Metrics Jan 2007 – Jul 2013 Distinct Users per Year

  21. Discovery & Access Data Pool GUI Retired • HDF-EOS to GeoTIFF (HEG) data services now accessible in Reverb • Data Pool FTP site remains for direct data access REVERBreverb.echo.nasa.gov • FTP download All Products • Data services Most Standard Products • Spatial & Parameter Subsetting, Reformatting to GeoTIFF, Projection Conversion OpenDAPnsidc.org/opendap/Standard Products • Provides data variable display and output to ASCII and binary Polarishttp://nsidc.org/data/polaris/EASE-Grid & .25 deg TBs • Data services: Spatial & Parameter Subsetting, Reformatting, Projection Conversion nsidc.org/data/methods.html

  22. Discovery & Access: NSIDC Data Search • Metadata Project – Completed • Improved metadata efficiency and accuracy • Betterdata search results • More complete data documentation • NSIDC Search – In Work • User feedback: Challenging to find and select data which best meets needs • Plans: • Improved search algorithms • Faceted browse • Data comparison • Timeframe: Initial release before end of 2013

  23. User Support • User Services Knowledge Base support.nsidc.org/forums • Dynamic FAQs and other data support • The Driftnsidc.org/the-drift/ • Consolidated online data announcements, data highlights, tools, and tips into a blog-style Web site • Replaces NSIDC Notes Most Common User Questions • Provide guidance on which data set to use or which data within a data set • Provide guidance on information in the documentation • How do I open/read [data set] in [format] with [tool]? • How do I convert from [x data format or x projection] to [y data format or y projection]? • Is there a way to extract data for only the region I need in [data set]? nsidc.org/data/amsre

  24. Data Quality Information • Aqua Senior Review Committee requested a centralized source of AMSR-E uncertainly information.  • NSIDC agreed to host an "AMSR-E Data Product Confidence" Web page • Synopsis on sources of uncertainty. • The best estimates of data uncertainty under optimal conditions, expressed in terms appropriate to each measurement. Where possible, express this as "95% confidence interval". • A description of how to interpret quality flags to understand the conditions under which uncertainty may be greater. • Completed: Sea Ice, SWE, Soil Moisture • Suggestion by Marco: develop a 'standardized' measure so that it would be easier to look at the results of the survey.

  25. Long Term Archival • ESDIS developed the NASA Earth Science Data Preservation Content Specification (423-SPEC-001, Nov 2011) • “This document defines the contents of data, metadata and associated documentation to be preserved beyond the life of missions funded by NASA’s Earth Science Division (ESD).” • NSIDC will coordinate the collection and archival of material • Doug Fowler (ICESat Data Management Lead) • Science Team, TLSCF, SIPS, and JAXA will beessential to the LTA collection process • Need to capture knowledge before people move on • Documents • should be archived in a persistent format, like PDF • are either submitted to the NASA Technical Reports Server (NTRS) or become an unofficial part of the LTA

  26. Long Term Archival * Proved difficult to collect with ICESat

  27. AMSR-E Team at NSIDC Thanks to the AMSR-E Team at NSIDC! AMSR-E Chris Bond – Operations Karla LeFevre – Technical Writer Shannon Leslie– User Services Siri Jodha Khalsa – ECS Science Liason ? Walt Meier @ GSFC now – Scientist Cathy Fowler – Database Administrator

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