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Full catalog/VJ110C1
VJ110C1·v2·dataset

Where there's snow, daily (VIIRS NOAA-20, 0.05°)

VIIRS/JPSS1 Snow Cover Daily L3 Global 0.05Deg CMG V002
atmosphere NASA NSIDC_CPRD Level 3 active HDF-EOS5
In plain English

What it measures. A daily global map showing the percentage of land covered by snow, and the percentage hidden by clouds, in grid cells of about 5 km.

How it's made. Built by summarizing a finer 375-meter VIIRS snow-cover product from the NOAA-20 satellite into a coarser climate-modeling grid.

How & where you'd use it. Useful for tracking seasonal snow cover and feeding climate and hydrology models.

What's measured

ATMOSPHERE › CLOUDS › CLOUD PROPERTIES › CLOUD FRACTIONCRYOSPHERE › SNOW/ICE › SNOW COVER

Coverage & cadence

  • Time span2018-01-05 → ongoing
  • Measured byJPSS-1 (VIIRS) · NOAA-20 (VIIRS)
  • Processing levelLevel 3
  • Spatial extent-180, -90, 180, 90
  • FormatsHDF-EOS5
  • StatusACTIVE

What you can do with it

  • Map air pollutants — NO₂, aerosols, ozone
  • Track greenhouse gases and Earth's energy budget
  • Feed weather and air-quality analysis
Official description

This global Level-3 data set provides the percentage of snow-covered land and cloud-covered land observed daily, within 0.05° (approx. 5 km at the equator) MODIS/VIIRS Climate Modeling Grid (CMG) cells. Percentages are computed from snow cover observations in the 'VIIRS/JPSS1 Snow Cover Daily L3 Global 375m SIN Grid' data set (DOI:10.5067/UAJGR7WVWDDI).

Get the data

vj110c1_access.py
import earthaccess
earthaccess.login(strategy="netrc")          # free Earthdata Login

results = earthaccess.search_data(
    short_name="VJ110C1",
    version="2",
    bounding_box=(-122.5, 37.2, -121.8, 37.9),  # your area (W,S,E,N)
    temporal=("2024-01-01", "2024-12-31"),       # your dates
)
files = earthaccess.open(results)   # stream straight from NSIDC_CPRD
Browsing CMR needs no login. Downloading or streaming bytes needs a free Earthdata Login + the earthaccess package.