NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC)

Version 3 Aquarius L2 Swath Single Orbit Soil Moisture data are now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).

This data set contains Level-2 global soil moisture estimates derived from the NASA Aquarius passive microwave radiometer on the Satélite de Aplicaciones Científicas (SAC-D).

Land cover classifications and land cover masks in the EASE-Grid and EASE-Grid 2.0 projections are now available as data sets from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). These data provide land cover classifications and land classification masks derived from the Boston University MOD12Q1 V004 MODIS/Terra 1 km Land Cover Product. These data are available in various EASE-Grid and EASE-Grid 2.0 azimuthal and global projections, at various spatial resolutions ranging from 3 km to 100 km.

The MEaSUREs Greenland Surface Melt Daily 25km EASE-Grid 2.0 data set is now available from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set, part of the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) program, offers users a 25 km daily record of surface/near-surface melting on the Greenland Ice Sheet from 2 January 1979 to 31 December 2012. To access the data and documentation, visit the data set Web page at https://nsidc.org/data/nsidc-0533.

NASA IceBridge MCoRDS L1B Geolocated Radar Echo Strength Profiles data for 2013 Antarctica are now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set contains radar echograms taken from the Center for Remote Sensing of Ice Sheets (CReSIS) ultra Multichannel Coherent Radar Depth Sounder (MCoRDS) over land and sea ice in the Arctic and Antarctic. See the MCoRDS Radar L1B data catalog page for more information.

NASA IceBridge MCoRDS Level-2 Ice Thickness data for 2012 and 2013 Antarctica are now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set contains depth sounder measurements of elevation, surface, bottom, and thickness for Greenland and Antarctica taken from the Multichannel Coherent Radar Depth Sounder (MCoRDS). See the IceBridge MCoRDS L2 Ice Thickness catalog page for more information.

NASA IceBridge MCoRDS L1B Geolocated Radar Echo Strength Profiles, Version 2 data for 2012 Antarctica and 2013 Arctic are now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set contains radar echograms taken from the Center for Remote Sensing of Ice Sheets (CReSIS) ultra Multichannel Coherent Radar Depth Sounder (MCoRDS) over land and sea ice in the Arctic and Antarctic. Version 2 data are provided in netCDF format.

NASA IceBridge Ku-Band Radar L1B Geolocated Radar Echo Strength Profiles, Version 2 data for 2012 Antarctica and 2013 Arctic are now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set contains radar echograms taken from the Center for Remote Sensing of Ice Sheets (CReSIS) ku-band radar over land and sea ice in the Arctic and Antarctic. Version 2 data are provided in netCDF format. See the Ku-Band Radar L1B data catalog page for more information.

Reprocessed NASA ICESat/GLAS GLAH01 HDF5 data are now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). GLAH01 reprocessing was conducted to correct the format of the d_4nsBgMean parameter changing it from counts to volts.

See the ICESat/GLAS data collection for more information.

DOI:10.5067/ICESAT/GLAS/DATA101.

NASA IceBridge Sander AIRGrav L4 Bathymetry data containing bathymetry of Arctic fjords and Antarctic ice shelves are now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). See the Sander AIRGrav L4 Bathymetry data catalog page for more information.

The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has been informed that our data provider, MODAPS, identified corrupt files that may have impacted previously forward processed data for all MODIS snow and sea ice products. NSIDC recommends that MODIS snow and sea ice data users replace the following files:

MODIS Terra
Files from Day of Year (DOY) 256 to DOY 271, downloaded before 6 October 2014. Files from DOY 277 to 282, downloaded before 11 October 2014.

The Northern Hemisphere EASE-Grid 2.0 Weekly Snow Cover and Sea Ice Extent (Version 4) has been updated through 29 June 2014. This product provides snow cover at weekly intervals beginning 03 October 1966, as well as combined snow cover and sea ice extent at weekly intervals beginning 23 October 1978. Designed to facilitate the study of Northern Hemisphere seasonal fluctuations of snow cover and sea ice extent, this product also includes monthly climatologies describing average extent, probability of occurrence, and variance.

NSIDC is experiencing delays receiving some MODIS data sets from our data provider. We apologize for the inconvenience. Please contact User Services if you have questions.

Corrected IceBridge Accumulation Radar L1B Geolocated Radar Echo Strength Profiles, Version 2 data are now available from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). The data set update corrects a time stamp error by adding 1 second to the GPS time. See the IceBridge Accumulation Radar Level-1B catalog page for documentation and data.

Corrected IceBridge Snow Radar L1B Geolocated Radar Echo Strength Profiles, Version 2 data are now available from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). The data set update corrects a time stamp error by adding 1 second to the GPS time. See the IceBridge Snow Radar Level-1B catalog page for documentation and data.

The MEaSUREs Northern Hemisphere Terrestrial Snow Cover Extent Daily 25 km EASE-Grid 2.0 data set is now available from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set offers users 25 km Northern Hemisphere snow cover extent represented by four different variables. Three of the snow cover variables are derived from the Interactive Multisensor Snow and Ice Mapping System, MODIS Cloud Gap Filled Snow Cover, and passive microwave brightness temperatures, respectively.

NASA IceBridge Radar Level-3 Tomographic Ice Thickness data are now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). See the Tomographic Ice Thickness data catalog page for more information.

The AMSR-E Science Investigator-led Processing System (SIPS) has completed reprocessing of the AMSR-E sea ice data sets to Version 3. The following data sets are now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).

NASA IceBridge Scintrex CS-3 Cesium Magnetometer L1B Geolocated Magnetic Anomalies data for 2013 Antarctica are now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). See the Cesium Magnetometer L1B data catalog page for more information.

NASA IceBridge LVIS L2 Geolocated Surface Elevation Product data for 2013 Arctic are now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). See the LVIS L2 data catalog page for more information.