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Description

This data set reports the percentage of snow-covered land in 0.05° (approx. 5 km) resolution Climate Modeling Grid (CMG) cells. Percentages are computed from snow cover observations in the MODIS/Aqua Snow Cover Daily L3 Global 500m Grid (MYD10A1) data set. Cloud cover percentages are also provided.

As of August 2023, this data set is retired and no longer available for download. We recommend using <a href="https://nsidc.org/data/myd10c1/versions/61">MODIS/Aqua Snow Cover Daily L3 Global 0.05Deg CMG, Version 61</a> as an alternative.

Version Description

Changes for Version 6 include:
  • Fractional Snow Cover (FSC) previously used as input to this data set has been replaced by Normalized Difference Snow Index (NDSI) snow cover;
  • The Day_CMG_Confidence_Index variable has been replaced with Day_CMG_Clear_Index.
  • Aqua MODIS band 6 data have been restored to scientific quality using a Quantitative Image Restoration (QIR) technique. Aqua now uses the same snow detection algorithm as Terra;

Product Summary

Platforms
Aqua
Instruments
MODIS
Spatial Extent

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

Spatial Resolution
0.05 Decimal Degrees x 0.05 Decimal Degrees
Location
GLOBAL LAND
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2002-07-04 to 2023-02-25
Temporal Resolution
1 Day
Concept ID
C3091262410-NSIDC_CPRD
Data State
DEPRECATED
Number of Files/Granules
0
Processing Level
3
Published
Science Keywords
Snow Cover

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Hall, D. K., & Riggs, G. A. (2015). MODIS/Aqua Snow Cover Daily L3 Global 0.05Deg CMG, Version 6 [Dataset]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/MODIS/MYD10C1.006 Date Accessed: 2026-09-19

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