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Snow Cover Data Access and Tools

From discovery to visualization, data tools such as Application for Extracting and Exploring Analysis Ready Samples (AppEEARS), Snow Today, and Worldview guide users in making the most of snow cover data.

Snow Cover Datasets

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Dataset Version Platform Instrument Temporal Extent Spatial Extent Spatial Resolution Data Format
Near-Real-Time AMSR2 EASE-Grid Daily Global Ice Concentration and Snow Extent V001 1 GCOM-W1 AMSR2 2024-01-01 to Present

N: 90 S: -90 E: 180 W: -180

25 Kilometers x 25 Kilometers HDF-EOS4, HDF-EOS2
Near-Real-Time SSM/I EASE-Grid Daily Global Ice Concentration and Snow Extent V002 2 DMSP 5D-2/F13 SSM/I 1995-05-04 to 2009-09-11

N: 90 S: -90 E: 180 W: -180

25 Kilometers x 25 Kilometers HDF-EOS2
Near-Real-Time SSM/I-SSMIS EASE-Grid Daily Global Ice Concentration and Snow Extent V003 3 DMSP 5D-3/F16 SSMIS 2012-01-01 to Present

N: 90 S: -90 E: 180 W: -180

25 Kilometers x 25 Kilometers HDF-EOS2
Near-Real-Time SSM/I-SSMIS EASE-Grid Daily Global Ice Concentration and Snow Extent V004 4 DMSP 5D-3/F17 SSMIS 2009-08-17 to Present

N: 90 S: -90 E: 180 W: -180

25 Kilometers x 25 Kilometers HDF-EOS2
Near-Real-Time SSM/I-SSMIS EASE-Grid Daily Global Ice Concentration and Snow Extent V005 5 DMSP 5D-3/F18 SSMIS 2016-12-01 to Present

N: 90 S: -90 E: 180 W: -180

25 Kilometers x 25 Kilometers HDF-EOS2
Northern Hemisphere Snow Cover Monthly Statistics at 1 Degree Resolution V001 (NHSNOWM) at GES DISC 001 GOES AVHRR 2000-01-01 to 2014-11-30

N: 90 S: 0 E: 180 W: -180

1 Decimal Degrees x 1 Decimal Degrees
Primary Ancillary Data Geo-Colocated to OMI/Aura UV2 1-Orbit L2 Swath 13x24km V4 (OMUANC) at GES DISC 004 Aura, GEOS-5 OMI, NOT APPLICABLE 2004-10-01 to Present

N: 90 S: -90 E: 180 W: -180

24 Kilometers x 13 Kilometers
Primary Ancillary Data Geo-Colocated to OMI/Aura VIS 1-Orbit L2 Swath 13x24km V4 (OMVANC) at GES DISC 004 Aura, GEOS-5 OMI, NOT APPLICABLE 2004-10-01 to Present

N: 90 S: -90 E: 180 W: -180

24 Kilometers x 13 Kilometers
RADARSAT-1 Level 0 Product 1 RADARSAT-1 SAR 1996-02-01 to 2009-03-17

N: 90 S: -90 E: 180 W: -180

RADARSAT-1 Level 1 Product 1 RADARSAT-1 SAR 1996-02-01 to 2009-03-17

N: 90 S: -90 E: 180 W: -180

Sentinel-1A Dual Polarization Full Resolution Ground Range Detected Product 1 Sentinel-1A C-SAR 2014-04-03 to Present

N: 90 S: -90 E: 180 W: -180

Sentinel-1A Dual Polarization Full Resolution Ground Range Detected Product Metadata 1 Sentinel-1A C-SAR 2014-04-03 to Present

N: 90 S: -90 E: 180 W: -180

Sentinel-1A Dual Polarization High Resolution Ground Range Detected Product 1 Sentinel-1A C-SAR 2014-04-03 to Present

N: 90 S: -90 E: 180 W: -180

Sentinel-1A Dual Polarization High Resolution Ground Range Detected Product Metadata 1 Sentinel-1A C-SAR 2014-04-03 to Present

N: 90 S: -90 E: 180 W: -180

Sentinel-1A Dual Polarization Medium Resolution Ground Range Detected Product 1 Sentinel-1A C-SAR 2014-04-03 to Present

N: 90 S: -90 E: 180 W: -180

Sentinel-1A Dual Polarization Medium Resolution Ground Range Detected Product Metadata 1 Sentinel-1A C-SAR 2014-04-03 to Present

N: 90 S: -90 E: 180 W: -180

Sentinel-1A Level 0 Product 1 Sentinel-1A C-SAR 2014-04-03 to Present

N: 90 S: -90 E: 180 W: -180

Sentinel-1A Level 0 Product Metadata 1 Sentinel-1A C-SAR 2014-04-03 to Present

N: 90 S: -90 E: 180 W: -180

Sentinel-1A Single Look Complex Product 1 Sentinel-1A C-SAR 2014-04-03 to Present

N: 90 S: -90 E: 180 W: -180

Sentinel-1A Single Look Complex Product Metadata 1 Sentinel-1A C-SAR 2014-04-03 to Present

N: 90 S: -90 E: 180 W: -180

Sentinel-1A Single Polarization High Resolution Ground Range Detected Product 1 Sentinel-1A C-SAR 2014-04-03 to Present

N: 90 S: -90 E: 180 W: -180

Sentinel-1A Single Polarization High Resolution Ground Range Detected Product Metadata 1 Sentinel-1A C-SAR 2014-04-03 to Present

N: 90 S: -90 E: 180 W: -180

Sentinel-1A Single Polarization Medium Resolution Ground Range Detected Product 1 Sentinel-1A C-SAR 2014-04-03 to Present

N: 90 S: -90 E: 180 W: -180

Sentinel-1A Single Polarization Medium Resolution Ground Range Detected Product Metadata 1 Sentinel-1A C-SAR 2014-04-03 to Present

N: 90 S: -90 E: 180 W: -180

Sentinel-1B Dual Polarization High Resolution Ground Range Detected Product 1 Sentinel-1B C-SAR 2016-04-25 to 2021-12-24

N: 90 S: -90 E: 180 W: -180

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Featured Observation Method: VIIRS
The Visible Infrared Imaging Radiometer Suite (VIIRS) is an instrument aboard the joint NASA/NOAA Suomi National Polar-orbiting Partnership (Suomi NPP) and NOAA-platforms. VIIRS collects visible and infrared imagery along with global observations of Earth including cryosphere.

The algorithms VIIRS uses for snow cover and sea ice products are specifically designed to be compatible with similar products from older the Moderate Resolution Imaging Spectroradiometer (MODIS) instrument, which supports comparison between datasets to facilitate long-term climate data records.
Learn more about VIIRS
True color corrected reflectance image of Africa, Europe, and Asia from the VIIRS instrument aboard the NOAA-21 satellite

From MODIS to VIIRS: Continuing the Legacy

The Visible Infrared Imaging Radiometer Suite (VIIRS) will help ensure continuity of Earth observations after the upcoming retirement of the Moderate Resolution Imaging Spectroradiometer (MODIS).

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