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

The SnowEx20 Grand Mesa IOP Computed Tomography Snow Microstructure, 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 characterizes snow microstructure of six snow pits from the SnowEx 2020 Grand Mesa, Colorado Intensive Observation Period using microcomputed tomography (micro-CT).

The Land Cover Classification, Snow Cover, and Fractional Snow-Covered Area Maps from Maxar WorldView Satellite Images, Version 1 data set is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC).

The DMSP SSM/I-SSMIS Daily Polar Gridded Brightness Temperatures, Version 6 data set, accessible through the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), has been updated through 5 April 2023. This data set provides daily gridded brightness temperatures derived from passive microwave sensors and distributed in a polar stereographic projection.

The GLIMS Glacier Database, Version 1 dataset, available via the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), has been updated. This update includes new data on glacier outlines and improvements to existing ones.

VIIRS Collection 2 (Version 2) will be available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) in the coming weeks.

The Images of the Antarctic Ice Shelves tool as well as the Images of Antarctic Ice Shelves, Version 1 data set, accessible through the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) will be retired on 31 May 2023. Images of Antarctic Ice Shelves, Version 1 data has been incorporated into the Images of the Antarctic Ice Shelves, Version 2 data set.

Temporal updates for the MEaSUREs Greenland Image Mosaics from Sentinel-1A and -1B, Version 4 and MEaSUREs Greenland 6 and 12 day Ice Sheet Velocity Mosaics from SAR, Version 2 data sets are now available through the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). The temporal coverage for both the image mosaics and 6 and 12 day velocity mosaics data now spans from 01 January 2015 to 17 February 2023.

The SMAPVEX19-22 Massachusetts Temporary Soil Moisture Network, Version 1, and SMAPVEX19-22 Millbrook Temporary Soil Moisture Network, Version 1 data sets, accessible through the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), have been updated to include data through 31 October 2021.

Multilayer Greenland Ice Surface Temperature, Surface Albedo, and Water Vapor from MODIS, Version 1, accessible through the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), has been updated to include ice surface temperature (IST) data through 31 August 2021. This multilayer data set includes standard MODIS Collection 6.1 ice surface temperature (IST) and derived melt map, as well as MODIS Collection 6.0 albedo and water vapor for Greenland, at a spatial resolution of 0.78 km.

The SnowEx20 Time Series Snow Pit Measurements, 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 is a time-series of snow pit measurements obtained by the SnowEx community during between October 2019 and May 2020. Data were collected from snow pits in California, Colorado, Idaho, New Mexico, and Utah, USA.  Also available are photos of the field notes and snow pit sites.

Temporal updates for the MEaSUREs Greenland Image Mosaics from Sentinel-1A and -1B, Version 4 and MEaSUREs Greenland 6 and 12 day Ice Sheet Velocity Mosaics from SAR, Version 2 data sets are now available through the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). The temporal coverage for both the image mosaics and 6 and 12 day velocity mosaics data now spans from 01 January 2015 to 24 January 2023.

The Bootstrap Sea Ice Concentrations from Nimbus-7 SMMR and DMSP 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 to include new data through 31 December 2022. This data set consists of daily and monthly sea ice concentrations derived from brightness temperature measurements. This data set is available for the north and south polar regions, with a temporal coverage extending back to 1 November 1978.