Arctic Sea Ice Seasonal Change and Melt/Freeze Climate Indicators from Satellite Data, Version 1 (NSIDC-0747) 1 March 1979 - 28 February 2018 NetCDF Bootstrap Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS, Version 4 (NSIDC-0079) 1 November 1978 to present netCDF-4 Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR, Version 2 (NSIDC-0630) 25 October 1978 to present netCDF-4 DMSP SSM/I-SSMIS Daily Polar Gridded Brightness Temperatures, Version 6 (NSIDC-0001) 9 July 1987 to present NetCDF EASE-Grid Sea Ice Age, Version 4 (NSIDC-0611) 1 January 1984 - 31 December 2023 NetCDF, PNG Global EASE-Grid 8-day Blended SSM/I and MODIS Snow Cover, Version 1 (NSIDC-0321) 5 March 2000 - 1 February 2008 NetCDF, PNG Global Monthly EASE-Grid Snow Water Equivalent Climatology, Version 1 (NSIDC-0271) 1 January 1978 - 31 December 2007 Binary MEaSUREs Arctic Sea Ice Characterization Daily 25km EASE-Grid 2.0, Version 1 (NSIDC-0532) 1 January 1979 - 31 December 2012 NetCDF MEaSUREs Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR, Version 1 (NSIDC-0630) 25 October 1978 to present NetCDF MEaSUREs Northern Hemisphere Terrestrial Snow Cover Extent Daily 25km EASE-Grid 2.0, Version 1 (NSIDC-0530) 1 January 1999 - 31 December 2012 NetCDF Near-Real-Time DMSP SSM/I-SSMIS Daily Polar Gridded Brightness Temperatures, Version 2 (NSIDC-0080) 1 November 2021 to present netCDF-4 Near-Real-Time DMSP SSMIS Daily Polar Gridded Sea Ice Concentrations, Version 2 (NSIDC-0081) 1 November 2021 to present PNG, NetCDF Near-Real-Time SSM/I EASE-Grid Daily Global Ice Concentration and Snow Extent, Version 2 (NISE) 4 May 1995 - 11 September 2009 HDF-EOS2 Near-Real-Time SSM/I-SSMIS EASE-Grid Daily Global Ice Concentration and Snow Extent, Version 3 (NISE) 1 January 2012 to present HDF-EOS2 Near-Real-Time SSM/I-SSMIS EASE-Grid Daily Global Ice Concentration and Snow Extent, Version 4 (NISE) 17 August 2009 to present HDF-EOS2 Near-Real-Time SSM/I-SSMIS EASE-Grid Daily Global Ice Concentration and Snow Extent, Version 5 (NISE) 1 December 2016 to present HDF-EOS2 Nimbus-7 SMMR Pathfinder Daily EASE-Grid Brightness Temperatures, Version 1 (NSIDC-0071) 25 October 1978 - 20 August 1987 Binary Nimbus-7 SMMR Polar Gridded Radiances and Sea Ice Concentrations, Version 1 (NSIDC-0007) 25 October 1978 - 20 August 1987 Northern Hemisphere EASE-Grid 2.0 Weekly Snow Cover and Sea Ice Extent, Version 4 (NSIDC-0046) 3 October 1966 - 1 January 2023 , 23 October 1978 - 1 January 2023 Binary Polar Pathfinder Daily 25 km EASE-Grid Sea Ice Motion Vectors, Version 4 (NSIDC-0116) 25 October 1978 - 31 December 2023 NetCDF, PNG Quicklook Arctic Weekly EASE-Grid Sea Ice Age, Version 1 (NSIDC-0749) 1 January 2024 to present NetCDF, PNG Quicklook Arctic Weekly EASE-Grid Sea Ice Motion Vectors, Version 1 (NSIDC-0748) 1 January 2024 to present PNG, NetCDF Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS Passive Microwave Data, Version 2 (NSIDC-0051) 26 October 1978 to present PNG, netCDF-4 Sea Ice Trends and Climatologies from SMMR and SSM/I-SSMIS, Version 3 (NSIDC-0192) 26 October 1978 - 31 December 2022 PNG, Binary, JPEG, ASCII Simulated 12-Month Ice Parcel Tracks from Gridded Sea Ice Motion, Version 1 (NSIDC-0790) 1 October 1979 - 1 October 2022 CSV Snow Melt Onset Over Arctic Sea Ice from SMMR and SSM/I-SSMIS Brightness Temperatures, Version 5 (NSIDC-0105) 1 January 1979 - 31 December 2022 NetCDF, PNG