Data Announcements

NASA IceBridge ATM L2 Icessn Elevation, Slope, and Roughness data for 2011 Antarctica are now available from NSIDC. See the IceBridge ATM L2 Icessn Elevation, Slope, and Roughness Web page at https://nsidc.org/data/ilatm2 for more information.

NASA IceBridge Narrow Swath ATM L1B Qfit Elevation and Return Strength data for 2011 Antarctica are now available from NSIDC. See the IceBridge Narrow Swath ATM L1B Qfit Elevation and Return Strength Web page at https://nsidc.org/data/ilnsa1b for more information.

The NASA IceBridge CAMBOT L1B Geolocated Images for 2011 Antarctica are now available from NSIDC. See the IceBridge CAMBOT L1B Geolocated Images Web page at https://nsidc.org/data/iocam1b for more information.

The NOAA@NSIDC Climate Data Record of Passive Microwave Sea Ice Concentration data set, released in late 2011 at a daily resolution, has now been processed to include a monthly averaged version of its sea ice climatology. This sea ice CDR was created in cooperation with NOAA@NSIDC's National Climatic Data Center (NCDC). To access the data and see the documentation, see the NOAA@NSIDC Climate Data Record of Passive Microwave Sea Ice Concentration catalog page.

IceBridge GPS L1B Time-Tagged Real-Time Position and Attitude Solution data for 2010 and 2011 Antarctica are now available from NSIDC. See the IceBridge GPS L1B Time-Tagged Real-Time Position and Attitude Solution data Web page at https://nsidc.org/data/iputn1b for more information.

This data set provides a coastline history of the eastern Amundsen Sea Embayment and terminus histories of its outlet glaciers derived from those coastlines. These outlet glaciers include Smith, Haynes, Thwaites, and Pine Island Glaciers. The coastlines were derived from detailed tracing of Landsat imagery between late 1972 and late 2011 (at a scale of 1:50,000). The data set also uses some additional data from other sources. The terminus histories are calculated as the intersections between these coastlines and 1996 flowlines.

NASA IceBridge Sigma Space Photon Counting Lidar L1B Time-Tagged Nadir Photon Ranges data for 2010 Antarctica are now available from NSIDC. See the IceBridge Sigma Space Photon Counting Lidar L1B Time-Tagged Nadir Photon Ranges Web page at https://nsidc.org/data/ilsnp1b for more information.

NASA IceBridge Sander Air GRAV L1B Geolocated Anomalies Data for 2011 Antarctica are now available from NSIDC. See the IceBridge Sander Air GRAV L1B Geolocated Anomalies Data Web page at https://nsidc.org/data/igglv1b for more information.

NASA IceBridge Sigma Space Lidar L0 Raw Time-of-Flight Data for 2010 and 2011 Antarctica and 2011 Greenland are now available from NSIDC. See the NASA IceBridge Sigma Space Lidar L0 Raw Time-of-Flight Data Web page at https://nsidc.org/data/ilsig0 for more information.

The NASA IceBridge Sea Ice Freeboard, Snow Depth, and Thickness Quick Look evaluation product is now available from NSIDC. To access data, see the IceBridge Sea Ice Freeboard, Snow Depth, and Thickness Quick Look Web page. IceBridge evaluation products are derived from published IceBridge data sets, and are made available to the public for review and exploration of their usefulness and appropriateness for further study and research. For more on evaluation products, see the IceBridge collection page.

The Antarctic Glaciological Data Center (AGDC) at NSIDC has published new data sets. AGDC archives and distribtues data from National Science Foundation Office of Polar Programs-funded researchers.

The Antarctic Glaciological Data Center (AGDC) at NSIDC has published the ASTER GDEM 100-m Digital Elevation Model of the Antarctic Peninsula. The data set provides a 100-meter resolution surface topography Digital Elevation Model (DEM) of the Antarctic Peninsula. The DEM is based on Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Global Digital Elevation Model (GDEM) Version 1 data.

NASA IceBridge GPS/IMU L1B Primary Position and Attitude Solution data for 2010 Antarctica are now available from NSIDC. See the NASA IceBridge GPS/IMU L1B Primary Position and Attitude Solution Web page at https://nsidc.org/data/iputg1b for more information.

NSIDC has published an update to the NASA MEaSUREs program data set MEaSUREs Greenland Ice Velocity: Selected Glacier Site Velocity Maps from InSAR, supplying data for additional locations in Greenland. The data were produced from TerraSAR-X (TSX) image pairs collected from January to May 2009.

NASA IceBridge ZLS Dynamic Gravity Meter Time-Registered L1B Vertical Accelerations data for 2011 Antarctica are now available from NSIDC. See the NASA IceBridge ZLS Dynamic Gravity Meter Time-Registered L1B Vertical Accelerations Web page at https://nsidc.org/data/igzls1b for more information.

NASA IceBridge LVIS L2 Geolocated Surface Elevation Product data for 2011 Antarctica and replacement data for 2010 Greenland are now available from NSIDC. See the IceBridge LVIS L2 Geolocated Surface Elevation Product Web page at https://nsidc.org/data/ilvis2 for more information.

NASA IceBridge LVIS L1B Geolocated Return Energy Waveforms data for 2011 Antarctica are now available from NSIDC. See the IceBridge LVIS L1B Geolocated Return Energy Waveforms Web page at https://nsidc.org/data/ilvis1b for more information.

The Global Lake and River Ice Phenology database has seasonal freeze-up and breakup dates as well as other descriptive ice information for 865 lakes and rivers in twelve Northern Hemisphere countries. Sixty-six of these bodies of water have records longer than 50 years. In cooperation with the Lake Ice Analysis Group (LIAG) at the University of Wisconsin, Madison, NOAA@NSIDC has updated and added to the database, increasing the number of lakes and rivers it holds by over 13 percent. A calendar correction was made to the Lake Suwa, Japan data.

NASA IceBridge NCAR Navigation, State Parameter, and Microphysics LRT Data for 2011 Antarctica are now available as brokered data via NSIDC. See the IceBridge NCAR Navigation, State Parameter, and Microphysics LRT Data Web page at https://nsidc.org/data/iancr1b for more information.

NASA IceBridge MCoRDS L1B Geolocated Radar Echo Strength Profiles data for 2011 Antarctica are now available from NSIDC. See the IceBridge MCoRDS L1B Geolocated Radar Echo Strength Profiles Web page at https://nsidc.org/data/irmcr1b for more information.