Data Announcements

NASA IceBridge ATM L2 Icessn Elevation, Slope, and Roughness data for 27 August 2016 to 15 September 2016 Greenland flights are now available from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set contains resampled and smoothed elevation measurements of Arctic and Antarctic sea ice, and Greenland, Antarctic Peninsula, and West Antarctic region land ice surface acquired using the NASA Airborne Topographic Mapper (ATM) instrumentation.

NASA IceBridge ATM L1B Elevation and Return Strength data for 27 August 2016 to 15 September 2016 Greenland flights are now available from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set contains spot elevation measurements of Arctic and Antarctic sea ice, and Greenland, Antarctic Peninsula, and West Antarctic region ice surface acquired using the NASA Airborne Topographic Mapper (ATM) instrumentation.

MEaSUREs has added SSM/I data from the F13 platform to the MEaSUREs Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR data set available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). The temporal coverage is now 9 July 1987 through 4 October 2011.

The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has released Version 2 of MEaSUREs Antarctic Boundaries for IPY 2007-2009 from Satellite Radar. Major changes in this version include the addition of the IMBIE 2016 and refined basins, and updated and expanded attribute lists.

On 13 March 2017, the NASA IceBridge HiCARS 1 L2 Geolocated Ice Thickness data were replaced. The data files now include extensive header information, including field descriptions, campaign information, and data processing notes. XML metadata files are now included with the data set. This data set contains ice thickness, surface and bed elevation, and echo strength measurements taken over Antarctica using the Hi-Capability Airborne Radar Sounder (HiCARS) instrument. Data Set DOI: https://doi.org/10.5067/F5FGUT9F5089

MEaSUREs has added SSM/I data from the F8 platform to the MEaSUREs Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR data set available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), extending the data's temporal coverage to include 9 July 1987 through 31 December 1991.

NASA IceBridge POS/AV L1B Corrected Position and Attitude Data for 2016 Antarctica are now available from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set contains georeferencing data from the Applanix 510 POS AV system flown with the Digital Mapping System (DMS) and other instruments over Greenland and Antarctica. Data set DOI: https://doi.org/10.5067/XILTNL9F1HCR

NASA IceBridge UAF Lidar Scanner L1B Geolocated Surface Elevation Triplets data for 2016 are now available from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set contains scanning laser altimetry data points of Alaska Glaciers acquired using the airborne University of Alaska Fairbanks (UAF) Glacier Lidar system. Data set DOI: https://doi.org/10.5067/AATE4JJ91EHC

On 08 March 2017, the NASA IceBridge HiCARS 2 L2 Geolocated Ice Thickness data were replaced. The data files now include extensive header information, including field descriptions, campaign information, and data processing notes. XML metadata files are now included with the data set. This data set contains ice thickness, surface and bed elevation, and echo strength measurements taken over Antarctica using the Hi-Capability Airborne Radar Sounder (HiCARS) instrument. Data Set DOI: https://doi.org/10.5067/9EBR2T0VXUDG

The National Snow and Ice Data Center is pleased to announce the release of a new data set, “Global Land Ice Velocity Extraction from Landsat 8 (GoLIVE)”. GoLIVE is a NASA-funded effort that serves as a processing and staging system for near-real-time global ice velocity data derived from Landsat 8 panchromatic imagery. The GoLIVE product website (https://nsidc.org/data/golive/) provides links to the dataset documentation and data access through the new GoLIVE Map Application.

NASA IceBridge ATM L2 Icessn Elevation, Slope, and Roughness data for the Arctic 2016 Summer campaign are now available from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set contains resampled and smoothed elevation measurements of Arctic and Antarctic sea ice, and Greenland, Antarctic Peninsula, and West Antarctic region land ice surface acquired using the NASA Airborne Topographic Mapper (ATM) instrumentation.

NASA IceBridge ATM L1B Elevation and Return Strength data for Summer Arctic 2016 are now available from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set contains spot elevation measurements of Arctic and Antarctic sea ice, and Greenland, Antarctic Peninsula, and West Antarctic region ice surface acquired using the NASA Airborne Topographic Mapper (ATM) instrumentation. Data set DOI: https://doi.org/10.5067/19SIM5TXKPGT

The EASE-Grid Sea Ice Age data set, available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has been updated through 31 December 2015. Data Set DOI: https://doi.org/10.5067/PFSVFZA9Y85G.

The Polar Pathfinder Daily 25 km EASE-Grid Sea Ice Motion Vectors data set, available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has been updated through 31 December 2015. Data Set DOI: https://doi.org/10.5067/O57VAIT2AYYY.

The Northern Hemisphere Cyclone Locations and Characteristics from NCEP/NCAR Reanalysis Data, Version 1, available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), now includes data for 2009 through 2016.

Due to a problem with the Antenna Azimuth file used to process the half-orbit 01966_A, the SMAP Science Data System (SDS) team has replaced the following files: SMAP_L1B_TB_01966_A_20150614T231537_R14010_001.h5 (Regenerated 2017-02-11) SMAP_L1C_TB_01966_A_20150614T231537_R14010_001.h5 (Regenerated 2017-02-14) SMAP_L1C_TB_E_01966_A_20150614T231537_R14010_001.h5 (Regenerated 2017-02-14) SMAP_L2_SM_P_E_01966_A_20150614T231537_R14010_001.h5 (Regenerated 2017-02-14) SMAP_L2_SM_P_01966_A_20150614T231537_R14010_001.h5 (Regenerated 2017-02-16) The SMAP SDS has corrected the A

Due to a problem involving the atmospheric correction algorithm used to process SMAP Level-1B (L1B) brightness temperatures, select half-orbit data files contain invalid brightness temperature values.

The Canadian Meteorological Centre (CMC) Daily Snow Depth Analysis Data data set at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has been updated with snow depth analysis data for 2016. Data Set doi: https://doi.org/10.5067/W9FOYWH0EQZ3

The MEaSUREs Greenland Ice Mapping Project (GIMP) Land Ice and Ocean Classification Mask data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set, part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, provides a complete land ice and ocean classification mask for the Greenland ice sheet that was mapped using a combination of Landsat 7 ETM+ panchromatic band imagery, and RADARSAT- 1 Synthetic Amplitude Radar (SAR) amplitude images.

The Application for Extracting and Exploring Analysis Ready Samples (AppEEARS), a web based data extraction and visualization tool, can now be used to explore MODIS snow cover datasets. Point samples can be ordered in AppEEARS by submitting a list of geographic coordinates for the desired location(s). The complete collections of MOD10A1, MYD10A1, MOD10A2, and MYD10A2 are available for extraction in AppEEARS, providing over 16 years’ worth of snow cover data.