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
• DOIs and ISO Lineage Metadata
• End of Mission Schedule

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• 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

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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.

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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)

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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

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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

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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

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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.

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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

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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.

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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
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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

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Current Science Software
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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

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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 ?

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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

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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

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Digital Object Identifiers

• Example for the L2A 10.5067/AQUA/AMSRE/DATA20
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• 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.

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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?

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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

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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

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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

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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