On March 19th and 20th, the NOAA-20 satellite will begin a sequence of propulsive maneuvers as part of an orbit rephasing effort. Rephasing NOAA-20 will take approximately 15 days, and the final orbit manuever is currently scheduled for April 4th, 2024. During the rephasing effort, data delivery may be delayed as science data undergoes additional review and quality testing, and users should exercise caution until the rephasing effort is complete.
VIIRS Version 1 (Collection 1) snow and sea ice data sets will cease forward processing on June 30, 2024. The Version 1 data will remain available for download, but users are encouraged to transition to VIIRS Version 2. VIIRS Version 2 includes new snow, sea ice, and ice surface temperature data sets from both the NASA/NOAA Suomi National Polar-orbiting Partnership (Suomi NPP) satellite and the National Oceanic and Atmospheric Administration-20 (NOAA-20) satellite.
VIIRS/NPP CGF Snow Cover Daily L3 Global 375m SIN Grid, Version 2
Data set id:
VNP10A1F
DOI: 10.5067/PN50Y51IVNLE
As a condition of using these data, you must cite the use of this data set.
10.5067/PN50Y51IVNLE
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COMPREHENSIVE Level of Service
Data: Data integrity and usability verified; data customization services available for select data
Documentation: Key metadata and comprehensive user guide available
User Support: Assistance with data access and usage; guidance on use of data in tools and data customization services
This is the most recent version of these data. Version Summary
Data update as part of VIIRS/JPSS-1 Collection 2
In this section
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Overview
This data set contains daily 'cloud-free' snow cover produced from the VIIRS/NPP Snow Cover Daily L3 Global 375m SIN Grid, Version 2 snow cover product. A cloud-gap-filled algorithm is utilized to replace ‘cloud-covered’ pixels with ‘cloud-free pixels’ for the purpose of estimating the snow cover that may exist under current cloud cover. The data are provided daily and mapped to a 375 m sinusoidal grid.
Parameter(s):
SNOW COVER
Platform(s):
Suomi-NPP
Sensor(s):
VIIRS
Data Format(s):
HDF-EOS5
Temporal Coverage:
19 January 2012 to present
Temporal Resolution:
1 day
Spatial Resolution:
375 m
375 m
Spatial Coverage:
N:
90
S:
-90
E:
180
W:
-180
Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.
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Data products from VIIRS are created to be similar to MODIS data products to ensure the continuity needed for the development of snow and sea ice climate records beyond the life expectancy of MODIS. The temporal resolution and spatial extent are identical in MODIS and VIIRS.
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