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Glaciers, Snow & Ice Data

MODIS Snow Cover (MOD10A1)

MODIS Snow Cover provides daily global snow extent at 500m resolution from 2000-present using the NDSI method — the standard for snow cover monitoring.

Format HDF / GeoTIFF
Coverage Global
Resolution 500m
License Free open access (NASA)
Update Daily and 8-day composites
Download source Open official source

Format

HDF / GeoTIFF

Geometry

Raster (snow classification)

Coverage

Global

Resolution

500m

About this dataset

Daily and 8-day global snow cover at 500m resolution from MODIS Terra and Aqua (2000-present).

MODIS Snow Cover (MOD10A1/MYD10A1) provides daily global snow cover observations at 500m resolution from the Terra (2000-present) and Aqua (2002-present) satellites. The Normalized Difference Snow Index (NDSI) method classifies each pixel as snow, no snow, cloud, or other. 8-day composite products reduce cloud cover interference.

Snow cover monitoring Hydrological modeling Climate change research Avalanche risk assessment

How to download

  1. 1 Open NASA Earthdata search.
  2. 2 Search for MOD10A1 (Terra) or MYD10A1 (Aqua).
  3. 3 Select date range and area of interest.
  4. 4 Download the HDF or GeoTIFF files for snow cover analysis.

NASA Earthdata search

Search and download MOD10A1 products

→

NSIDC MODIS Snow page

Product documentation

→

FAQ

What is the difference between MOD10A1 and MYD10A1?

MOD10A1 is from Terra (morning overpass ~10:30 AM), MYD10A1 is from Aqua (afternoon overpass ~1:30 PM). Using both can improve temporal coverage.

How does MODIS handle cloud cover?

MODIS provides a cloud mask with each snow product. The 8-day composite (MOD10A2) helps reduce cloud interference by selecting the best observation for each pixel.