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AMSR-E Team Leader Science Computing Facility

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AMSR-E Team Leader Science Computing Facility New Browse Images Current Science Software Science Software Updates DOI s and ISO Lineage Metadata – PowerPoint PPT presentation

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Title: AMSR-E Team Leader Science Computing Facility


1
AMSR-E Team Leader Science Computing Facility
  • New Browse Images
  • Current Science Software
  • Science Software Updates
  • DOIs and ISO Lineage Metadata
  • End of Mission Schedule

2
  • New Browses
  • 24 bit images
  • Developed by the SIPS
  • Reviewed by TLSCF, NSIDC
  • Flag values now more visible
  • Expanded color bars
  • Producing kml png for future use
  • NSIDC jpg available on the web

3
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7
Current Science Software
  • L2A Brightness Temperatures V11
  • January 2011
  • Updates to accommodate Land Atmosphere Near
    real-time Capability for EOS (LANCE) processing
  • Last algorithm updates
  • Version V10, April 2009
  • Compute a checksum from Latitudes, Longitudes,
    and Tb's, attach it to the L2A file as a global
    attribute, and report it in the QA file. This
    aids in corrupted file recognition.
  • RSS added the glint angles of the DirecTV 10 and
    11 satellites to the Geostationary_Satellite_Glint
    _Angles field.

8
Current Science Software
  • L2B Ocean V07
  • July 2010
  • Updates to accommodate LANCE processing
  • Last algorithm updates
  • Version V05, April 2007
  • Improved beamfilling correction to account for
    different footprint sizes of different
    frequencies
  • Include a new expression for the rain column
    height that yields more accurate rain flags (the
    third byte of the Ocean_products_quality_flag),
    which identify the proximity and intensity of
    rain useful for quality assessment of SST and
    wind speed (the meanings of the flags have not
    changed)

9
Current Science Software
  • L2B Land V10
  • July 2010
  • Updates to accommodate LANCE processing
  • Last algorithm update
  • Version B03, June 2005
  • Minor modification to the soil moisture QC
  • L2B Rain V11
  • July 2010
  • Updates to accommodate LANCE processing
  • Last algorithm update
  • Version B06, June 2005
  • Improve low coastal rain rates

10
Current Science Software
  • L3 Ocean V05
  • July 2010
  • Updates to metadata to accommodate LANCE
    processing
  • Last algorithm updates
  • Version V04, May 2010
  • RIF Filtering
  • DirecTV this affects the United States west
    coast and the Caribbean Islands
  • Atlantic Bird 4 in the Mediterranean Sea
  • Ascension Islands and in the Gulf of Aden
  • Update RFI filter for Hotbird/Astra
  • Update Aral Sea filters
  • Include the RFI angle grid in the product

11
Current Science Software
  • L3 Land V07
  • July 2010
  • Updates to metadata to accommodate LANCE
    processing
  • Last algorithm update
  • Version B03, May 2005
  • Correct grid projection parameters

12
Current Science Software
  • L3 Snow V10
  • August 2010
  • Updates to metadata to accommodate LANCE
    processing
  • Last algorithm update
  • Version B05, November 2005
  • Update the forest cover ancillary files. Two
    MODIS products are now used to help correct for
    forest attenuation.
  • The daily product retrievals are now performed on
    the AMSR-E individual Tb samples which are then
    averaged to the EASE-Grid 25x25 km northern and
    southern hemisphere projection grid.
  • Retrievals are calibrated for snow depth with a
    snow density climatology file used to convert
    snow depth to snow water equivalent.

13
Current Science Software
  • L3 Rain V07
  • April 2011
  • Improved quality check on input data date
  • Last algorithm update V06, April 2008
  • Skip duplicate (overlapping) scans in consecutive
    L2A files
  • Improve L2A Brightness Temperature binning for
    monthly ocean grids
  • Update the leap second ancillary file to include
    the leap second which occurred at the end of 2005

14
Current Science Software
  • L3 Sea Ice V14
  • July 2012
  • Update Southern Hemisphere sea ice mask ancillary
    files using National Ice Center (NIC) data from
    June 2011
  • Mask provided by NSIDC
  • The shoreline was developed from ENVISAT and
    RADARSAT imagery from OCT 2009 until APR 2010.
    The majority of the imagery analysis between
    FEB2010 - MAR2010.

15
Current Science Software
6.25 km Sea Ice Product Land / Ocean Mask file
update
White land in old and new Gray ocean in old
and new Red land in old, ocean in new Blue
ocean in old, land in new
16
Current Science Software
  • L3 Sea Ice Drift B03
  • Polar Stereographic grids containing speed and
    direction for each hemisphere
  • Derived from AMSR-E 89 GHz 6.25 km resolution
    Tbs
  • Uses the 6.25 km and 12.5 km AMSR-E sea ice
    products as input
  • Uses a 5 day window
  • Browse created during product generation
  • New Requirement Java

17
Current Science Software
18
Algorithm Updates
  • L2A Tbs
  • RSS latest version
  • Delivery expected Oct 2012
  • L2 Ocean
  • Expect update based on new L2A
  • Significant changes ?
  • L2 Rain
  • Extensive update to GPROF
  • Format change
  • Will include the ocean research products as part
    of the output file available at NSIDC

19
Algorithm Updates
  • L3 Sea Ice Drift
  • Revisions to the browse image and code cleanup
  • TLSCF will make revisions, with final approval by
    algorithm team
  • Format change to include an image in the product
    file
  • L2 L3 Land
  • Significant updates to algorithm
  • L3 Sea Ice
  • Updates expected based on new L2A ?

20
Algorithm Updates
  • L3 Snow
  • Algorithm updates
  • Inclusion of SWE research product as part of the
    output file available at NSIDC once it is peer
    reviewed

21
Digital Object Identifiers
  • A character string used to uniquely identify a
    specific AMSR-E product collection
  • Metadata about the collection is stored in
    association with the DOI
  • The DOI is permanent, but the metadata for it can
    be updated as needed

22
Digital Object Identifiers
  • Example for the L2A 10.5067/AQUA/AMSRE/DATA20
    1
  • Product Title AMSR-E/Aqua L2A Global Swath
    Spatially-Resampled Brightness Temperatures (Tb)
    V003
  • Creator Wentz, Frank
  • Publication year 2012
  • URL http//nsidc.org/data/ae_l2a.html
  • The version in the product title is the ESDT
    collection version, not the algorithm version.

23
ISO Lineage Metadata
  • Includes algorithm information, processing
    history, input data
  • Data Preservation Requirements from ESDIS
    (Specification doc from Rama and John Moses
    Helen to discuss further)
  • Current push toward ISO-compliant metadata for
    NASA ES data
  • Incorporating results from NASA-sponsored
    provenance project HOW?

24
ISO Lineage Metadata
  • TLSCF, NSIDC, and SIPS defining content
  • TLSCF adding lineage metadata to all products
  • Software developed by SIPS and TLSCF
  • Using template supplied by SIPS
  • PGE integration at the TLSCF
  • Software available as part of the DAP
  • SIPS harvesting lineage metadata for provenance
    browser
  • NSIDC incorporating lineage information into
    collection level metadata

25
End of Mission Schedule
  • Oct 2012 - Dec 2012 New L2A version
  • RSS delivers to DAP and TB files
  • TLSCF
  • ECS metadata
  • ISO Lineage metadata
  • Documentation and DAP
  • Delivers DAP to SIPS for processing
  • Mar 2013 Products review by Science Team
  • At least 1 year of all products reprocessed using
    new L2A

26
End of Mission Schedule
  • Jun 2013 Algorithm status from scientists
  • For those algorithms with no changes, TLSCF
    updates ECS metadata, ISO Lineage metadata,
    documentation and DAP
  • Sep 2013 Algorithm updates due to TLSCF
  • TLSCF updates ECS metadata
  • ISO Lineage metadata
  • Documentation and DAP
  • IT

27
End of Mission Schedule
  • Jan 2014 Data reprocessing begins
  • Science review of updated algorithms
  • Available to the public
  • Final updates / bug fixes will be made based on
    algorithm team and public review prior to end of
    mission final reprocessing
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