Antarctica data sets based on spaceborne data - major update of Antarctica-wide ice velocity map now available

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Antarctica data sets based on spaceborne data - major update of Antarctica-wide ice velocity map now available

Bernd Scheuchl
Dear Colleagues,

The Rignot research group at the Department of Earth System Science at
the University of California, Irvine in collaboration with Caltech's Jet
Propulsion Laboratory, announces major updates to two Antarctic data
sets. Based on the work presented in a recently published paper,
additional products will be released in the coming weeks:

Mouginot, J., Rignot, E., Scheuchl, B., Millan, R. 2017. Comprehensive
Annual Ice Sheet Velocity Mapping Using Landsat-8, Sentinel-1, and
RADARSAT-2 Data. Remote Sensing 9(4): Art. #364.
doi: http://dx.doi.org/10.3390/rs9040364


Summary:
========

Just released:
--------------
MEaSUREs InSAR-Based Antarctica Ice Velocity Map, Version 2
https://nsidc.org/data/nsidc-0484/

MEaSUREs Antarctic Boundaries for IPY 2007-2009 from Satellite Radar,
Version 2
http://nsidc.org/data/NSIDC-0709/versions/2


Recent updates:
---------------
MEaSUREs Antarctic Grounding Line from Differential Satellite Radar
Interferometry, Version 2
http://nsidc.org/data/NSIDC-0498/versions/2


Also available:
---------------
MEaSUREs InSAR-Based Ice Velocity of the Amundsen Sea Embayment,
Antarctica, Version 1
http://nsidc.org/data/NSIDC-0545/versions/1

MEaSUREs InSAR-Based Ice Velocity Maps of Central Antarctica: 1997 and
2009, Version 1
http://nsidc.org/data/NSIDC-0525/versions/1


These data sets are part of the NASA Making Earth System Data Records
for Use in Research Environments (MEaSUREs) program and are available
for download at NSIDC:


SAR data acquisitions between 2006 and 2011 were coordinated by the
Space Task Group in support of the International Polar Year (IPY). Data
acquisitions post 2011 were coordinated by the Polar Space Task Group.

Spaceborne data were provided through generous data grants or an open
data policy by the following agencies:
ALOS PALSAR, ALOS-2 PALSAR-2: Japan Aerospace Exploration Agency (JAXA)
Sentinel-1, ENVISAT ASAR, ERS-1, ERS-2: European Space Agency (ESA)
RADARSAT-2, RADARSAT-1: Canadian Space Agency (CSA)
TerraSAR-X, TanDEM-X: German Aerospace Center (DLR)
COSMO Skymed: Italian Space Agency (ASI)
LANDSAT-8: United States Geological Survey (USGS)


=====================
Detailed description:
=====================

Just released:

MEaSUREs InSAR-Based Antarctica Ice Velocity Map, Version 2
https://nsidc.org/data/nsidc-0484/
This data set provides a much-improved Antarctica-wide ice velocity map
at 450 m posting.
Version 2 includes data acquired from 2011-2016 from RADARSAT-2 and
Sentinel-1. Landsat-8 optical imagery is now also integrated. The use of
additional data results in improved coverage (99.6% for version 2) and
reduced error.
Rignot, E., J. Mouginot, and B. Scheuchl. 2011. Ice Flow of the
Antarctic Ice Sheet, Science. 333. 1427-1430.
http://dx.doi.org/10.1126/science.1208336
Mouginot, J., B. Scheuchl, and E. Rignot. 2012. Mapping of Ice Motion in
Antarctica Using Synthetic-Aperture Radar Data, Remote Sensing 4.
2753-2767. http://dx.doi.org/10.3390/rs4092753


MEaSUREs Antarctic Boundaries for IPY 2007-2009 from Satellite Radar,
Version 2
http://nsidc.org/data/NSIDC-0709/versions/2
This data set provides maps of Antarctic ice shelves, the Antarctic
coastline and Antarctic basins.
Rignot, E., S. S. Jacobs, J. Mouginot, and B. Scheuchl. 2013. Ice-shelf
melting around Antarctica, Science. 341. 266-270.
http://dx.doi.org/10.1126/science.1235798


As a reminder, late last year an update of the InSAR based grounding
line was published:

MEaSUREs Antarctic Grounding Line from Differential Satellite Radar
Interferometry, Version 2
http://nsidc.org/data/NSIDC-0498/versions/2
This data set provides an update to the InSAR based grounding line
published in 2011 based on the work outlined in the manuscripts below.
Rignot, E., J. Mouginot, and B. Scheuchl. 2011. Antarctic Grounding Line
Mapping from Differential Satellite Radar Interferometry, Geophys. Res.
Lett. 38. L10504.  http://dx.doi.org/10.1029/2011GL047109
Rignot, E., J. Mouginot, M. Morlighem, H. Seroussi, and B. Scheuchl.
2014. Widespread, rapid grounding line retreat of Pine Island, Thwaites,
Smith, and Kohler glaciers, West Antarctica, from 1992 to 2011,
Geophysical Research Letters. 41. 3502-3509.
http://dx.doi.org/10.1002/2014GL060140
Li, X., E. Rignot, M. Morlighem, J. Mouginot, and B. Scheuchl. 2015.
Grounding line retreat of Totten Glacier, East Antarctica, 1996 to 2013.
Geophys. Res. Lett. 42: 8049–8056.
http://dx.doi.org/10.1002/2015GL065701
Scheuchl, B., J. Mouginot, E. Rignot, M. Morlighem, and A. Khazendar.
2016. Grounding line retreat of Pope, Smith, and Kohler Glaciers, West
Antarctica, measured with Sentinel-1a radar interferometry data.
Geophys. Res. Lett. 43: 8572–8579.
http://dx.doi.org/10.1002/2016GL069287


In addition, there are two regional time series available:

MEaSUREs InSAR-Based Ice Velocity of the Amundsen Sea Embayment,
Antarctica, Version 1
http://nsidc.org/data/NSIDC-0545/versions/1
This data set provides regional ice velocity maps of the Amundsen Sea
Embayment (ASE) including Pine Island, Thwaites, Haynes, Pope, Smith,
and Kohler glaciers for selected years between 1996-2012.
Mouginot, J., E. Rignot, and B. Scheuchl. 2014. Sustained Increase in
Ice Discharge from the Amundsen Sea Embayment, West Antarctica, from
1973 to 2013, Geophys. Res. Lett. 41. 1576-1584.
http://dx.doi.org/10.1002/2013GL059069


MEaSUREs InSAR-Based Ice Velocity Maps of Central Antarctica: 1997 and
2009, Version 1
http://nsidc.org/data/NSIDC-0525/versions/1
This data set provides two regional ice velocity map mosaics were
assembled from satellite interferometric synthetic-aperture radar
(InSAR) data acquired by RADARSAT-1 in 1997 and by RADARSAT-2 in 2009.
Scheuchl, B., J. Mouginot, and E. Rignot. 2012. Ice Velocity Changes in
the Ross and Ronne Sectors Observed Using Satellite Radar Data from 1997
and 2009, The Cryosphere, 6, 1019-1030.
http://dx.doi.org/10.5194/tc-6-1019-2012



On behalf of the team,


Bernd Scheuchl

--
Associate Project Scientist
Department of Earth System Science
University of California, Irvine
Croul Hall
Irvine, CA 92697-3100

e-mail: [hidden email]

http://www.ess.uci.edu/researchgrp/erignot


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