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Full catalog/VJ210D1F
VJ210D1F·v2·dataset

Where there's snow, daily map (VIIRS, NOAA-21, 375 m)

VIIRS/JPSS2 Snow Cover Daily L3 Global 375m CMG V002
cryosphere NASA NSIDC_CPRD Level 3 active HDF-EOS5
In plain English

What it measures. A daily worldwide map showing where snow is on the ground, at about 375-meter detail.

How it's made. Built from the VIIRS instrument on the NOAA-21 satellite by stitching that day's snow-cover tiles into a single global map; only the snow-cover layer is carried over.

How & where you'd use it. Helpful for tracking seasonal snow, water supply from snowmelt, and winter conditions across large regions.

What's measured

CRYOSPHERE › SNOW/ICE › SNOW COVER

Coverage & cadence

  • Time span2023-02-10 → ongoing
  • Measured byJPSS-2 (VIIRS) · NOAA-21 (VIIRS)
  • Processing levelLevel 3
  • Spatial extent-180, -90, 180, 90
  • FormatsHDF-EOS5
  • StatusACTIVE

What you can do with it

  • Measure sea ice, snow cover and glaciers
  • Watch ice-sheet elevation change
  • Track freeze/thaw and permafrost
Official description

VJ210D1F is a daily global view of snow cover at 375 m resolution. This daily global product is produced by reprojecting the all the VJ110A1 product tiles for a day to a global geographic projection. Only the NDSI_Snow_Cover data layer from the VJ110A1 product is input to produce this global product.

Get the data

vj210d1f_access.py
import earthaccess
earthaccess.login(strategy="netrc")          # free Earthdata Login

results = earthaccess.search_data(
    short_name="VJ210D1F",
    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.