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

The MEaSUREs Greenland Image Mosaics from Sentinel-1A and -1B, Version 2 data set, available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has been updated with mosaics through August 2018. This data set, part of the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, provides 6 and 12-day 50 m resolution image mosaics of the Greenland coastline and ice sheet periphery beginning in January 2015.

The DMSP SSM/I-SSMIS Pathfinder Daily EASE-Grid Brightness Temperatures, Version 2 data set, distributed by the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has been extended through 2 October 2018. The spatial resolution is 25 km for all channels; the 85 and 91 GHz channels are also provided at a 12.5 km resolution.

Data Set DOI: https://doi.org/10.5067/3EX2U1DV3434

The DMSP SSM/I-SSMIS Daily Polar Gridded Brightness Temperatures, Version 4 data set, distributed by the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) has been extended through 2 October 2018. Data at 85.5 GHz and 91.7 GHz are gridded at a resolution of 12.5 km, with all other frequencies at a resolution of 25 km.

Data Set DOI: https://doi.org/10.5067/AN9AI8EO7PX0  

The IceBridge L1B Flight Reports data set is now available from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).

The ASO L4 Lidar Snow Depth 50m UTM Grid data set has been updated at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) to include data from 8 February 2016 to 2 June 2018.

This data set contains 50 m gridded snow depths derived from airborne light detection and ranging, or lidar, measurements of surface elevations. The data were collected as part of the NASA/JPL Airborne Snow Observatory (ASO) aircraft survey campaigns.

The ASO L4 Lidar Snow Depth 3m UTM Grid data set has been updated at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) to include data from 8 February 2016 to 2 June 2018.

This data set contains 3 m gridded snow depths derived from airborne light detection and ranging, or lidar, measurements of surface elevations. The data were collected as part of the NASA/JPL Airborne Snow Observatory (ASO) aircraft survey campaigns.

The ASO L4 Lidar Snow Water Equivalent 50m UTM Grid data set has been updated from a basic to a standard level of service at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).

The SnowEx17 KT-15 Infrared Brightness Temperature data set is now available from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).

The IceBridge DMS L3 Ames Stereo Pipeline Photogrammetric DEM data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).

This data set represents a collection of digital elevation models (DEMs) obtained by processing Operation IceBridge DMS stereo images and lidar data using the NASA Ames Stereo Pipeline. The data set is currently available for 2016 Greenland and Antarctica campaigns, and the 2017 Greenland campaign, covering dates from 19 April 2016 to 25 July 2017.

The AMSR-E/AMSR2 Unified L3 Daily 25 km Brightness Temperatures & Sea Ice Concentration Polar Grids, Version 1 data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set includes six daily brightness temperature fields for channels ranging from 6.9 through 89.0 GHz, three daily sea ice concentration fields, and three daily sea ice concentration difference fields for ascending orbits, descending orbits, and full orbit daily averages.

Data set update: The Northern Hemisphere EASE-Grid 2.0 Weekly Snow Cover and Sea Ice Extent, Version 4 data set, distributed by the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), has been extended through 31 December 2017. This 25 x 25 km gridded product provides a consistent time series of sea ice concentrations from several passive microwave instruments and snow cover extent from the NOAA@NSIDC/NCDC Climate Data Record Program.

The SnowEx17 P-3 Airborne Video data set is now available from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).

The MEaSUREs Greenland Ice Sheet Velocity Map from InSAR Data, Version 2 data set has been updated to include data from Winter 2017/2018 and is 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, contains seasonal (winter) ice-sheet-wide velocity maps for Greenland.

All Aquarius soil moisture products have been updated to Version 5 and are now available from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). These data sets provide swath-based Level-2 and gridded Level-3 soil moisture estimates from the NASA Aquarius passive microwave radiometer on the Satélite de Aplicaciones Científicas (SAC-D). Data are available from August 2011 through the end of the Aquarius mission in June 2015.

The IceBridge Narrow Swath ATM L1B Elevation and Return Strength with Waveforms data set is now available from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).

This data set contains spot elevation measurements with corresponding waveforms of Antarctic sea ice. The data were acquired by the NASA Airborne Topographic Mapper (ATM) narrow-swath instrumentation between 29 October 2017 to 22 November 2017 as part of aircraft survey campaigns funded by Operation IceBridge.

The SnowEx17 Ground Penetrating Radar Raw data set is now available from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).

This data set contains the raw and unprocessed results of a ground penetrating radar survey conducted as part of the 2017 SnowEx campaign. Data were collected between 08 February 2017 and 25 February 2017 at Grand Mesa, Colorado.

Data set DOI: https://doi.org/10.5067/6JS9BKPIGMLJ

The ASO L4 Lidar Snow Depth 3m UTM Grid data set has been updated from a basic to a standard level of service at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). Increased data usability and usage support is now available, as well as a detailed user guide.

The Aquarius L3 Weekly Polar-Gridded Landscape Freeze/Thaw Data, Version 5 data set is now available from the National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).

The IceBridge-Related Sander AIRGrav L1B Geolocated Free Air Gravity Anomalies data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) from 29 April 2012 to 31 December 2016. This data set contains Greenland and Antarctica gravity measurements taken from the Sander Geophysics AIRGrav airborne gravity system.

The IceBridge ATM L4 Surface Elevation Rate of Change data set has been updated to include measurement comparisons of 2017 data to earlier years over Greenland at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).