Data Announcements
News and tips for data users
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The SMAP Radiometer Twice-Daily rSIR-Enhanced EASE-Grid 2.0 Brightness Temperatures, Version 1 data set, accessible through the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), has been updated from a basic to a standard level of service.
Please see our Levels of Service page for more information about our Level of Service model.
NOAA@NSIDC is pleased to announce that the NOAA@NSIDC Polar Orbiting Satellite (POES) Global Visible and Infrared Band Data from ESSA (1966 - 1972) and NOAA@NSIDC (1972 - 1978) Satellites, Version 1 data set, is now available at the National Snow and Ice Data Center (NSIDC).
The IceBridge L1B Thinned Flight Lines, Version 1 data set has been updated to include the 2018 Antarctic campaign, with data from 10 October through 17 November 2018 at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).
The IceBridge L1B Flight Reports, Version 1 data set has been updated to include the 2018 Antarctic campaign, with data from 02 October through 21 November 2018 at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).
The IceBridge Narrow Swath ATM L1B Elevation and Return Strength with Waveforms, Version 1 data set has been updated through 16 November 2018 to include data from the 2018 Antarctic campaign at 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 Greenland, Arctic, and Antarctic sea ice acquired by the NASA Airborne Topographic Mapper (ATM) narrow-swath instrumentation.
The IceBridge Narrow Swath ATM L1B Elevation and Return Strength, Version 2 data set has been updated through 16 November 2018 to include data from the 2018 Antarctic campaign data at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set contains spot elevation measurements of Greenland, Arctic, and Antarctic sea ice acquired by the NASA Airborne Topographic Mapper (ATM) narrow-swath instrumentation.
The IceBridge LVIS L2 Geolocated Surface Elevation Product, Version 2 data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set contains surface elevation measurements from the NASA Land, Vegetation, and Ice Sensor (LVIS) acquired during the 2017 Greenland campaign from 25 August 2017 through 20 September 2017.
Data set DOI: https://doi.org/10.5067/E9E9QSRNLYTK
The Sea Ice Trends and Climatologies from SMMR and SSM/I-SSMIS, Version 3 data set, accessible through the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), has been updated through 31 December 2018. This data set contains sea ice concentrations, ice-covered area, ice persistence, and sea ice extent for the Arctic and Antarctic.
NSIDC has discovered some large data gaps in the 2018 F18 Brightness Temperature record affecting the DMSP SSM/I-SSMIS Daily Polar Gridded Brightness Temperatures, Version 5 data set. Northern and Southern Hemisphere data files from 10 February through13 March 2018 and from 30 September through 31 October 2018 may contain only zero values. NSIDC is investigating the issue and will reprocess data files once the problem has been identified.
The IceBridge Sea Ice Freeboard, Snow Depth, and Thickness Quick Look, Version 1 data set has been updated to include data for the 2019 Arctic campaign from 06 April 2019 to 22 April 2019 at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This quick look product is experimental and designed to be applicable for time-sensitive projects such as sea ice forecasting.
Data Set DOI: https://doi.org/10.5067/GRIXZ91DE0L9
The data access locations for multiple passive microwave data sets, available through the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), have changed. Users accessing these data through a script will need to update accordingly. The new data access URLs are provided below:
The data access locations for multiple passive microwave data sets, available through the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), have changed. Users accessing these data through a script will need to update accordingly. The new data access URLs are provided below:
The SMAP Level-2 and Level-3 standard and enhanced radiometer soil moisture data sets, accessible through the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), have been updated. The optional Dual Channel Algorithm (DCA) in the Level-2 products has been replaced by the Modified Dual Channel Algorithm (MCDA). The baseline algorithm (SCA-V) remains unchanged for both Level-2 and Level-3 products. Other primary changes include:
The MEaSUREs Greenland Image Mosaics from Sentinel-1A and -1B, Version 2 data set, accessible through the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), has been updated with mosaics through May 2019. This data set is produced under the Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program and contains 6-day and 12-day 50 m resolution image mosaics of the Greenland coastline and ice sheet periphery.
The VIIRS/NPP Snow Cover Daily L3 Global 375m SIN Grid, Version 1 data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). T
NOAA@NSIDC is pleased to announce that the NOAA@NSIDC Climate Data Record of Passive Microwave Sea Ice Concentration, Version 3 data set is now available through 2018. This data set provides a Climate Data Record (CDR) of sea ice concentration from passive microwave data. It provides a consistent, daily and monthly time series of sea ice concentrations from 09 July 1987 through 31 December 2018 for both the north and south polar regions on a 25 km x 25 km grid.
The Nimbus-7 SMMR Derived Monthly Global Snow Cover and Snow Depth, Version 1 data set will be retired from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) on 27 August 2019. After this date, the data will no longer be accessible, but the data set documentation will remain available for future reference.
The Northern Hemisphere EASE-Grid 2.0 Weekly Snow Cover and Sea Ice Extent, Version 4 data set, accessible through the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), has been updated through 31 December 2018. This data set contains snow cover and sea ice extent derived from SMMR and DMSP-F8, -F11, -F13, and -F17 SMM/I and SSMIS brightness temperature measurements. These data are provided on the 25 km Northern Hemisphere EASE-Grid 2.0.
The MEaSUREs Greenland Annual Ice Sheet Velocity Mosaics from SAR and Landsat, Version 1 data set, accessible through the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), has been updated to include data for 2018.
The MEaSUREs Greenland Ice Velocity: Selected Glacier Site Velocity Maps from Optical Images, Version 2 data set, accessible through the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), has been updated to include all available data from 1985 through 2018 for all regions. Additionally, the sensor name abbreviations in the .meta files have changed. This data set consists of mean monthly velocity maps for selected glacier outlet areas from 1 March 1985 through 31 December 2018.