Data for MODIS Collection 6.1 are being processed from the beginning of the MODIS data record. As such, the temporal coverage will be incomplete until processing catches up to the present day. This data set is newly released with Collection 6.1; to access snow cover data with a complete temporal coverage, refer to the Collection 6.0 products MOD10A1/MYD10A1 or MOD10A2/MYD10A2.
Data Set ID: 
MYD10A1F

MODIS/Aqua CGF Snow Cover Daily L3 Global 500m SIN Grid, Version 61

This global Level-3 data set (MYD10A1F) provides daily cloud-free snow cover derived from the MODIS/Aqua Snow Cover Daily L3 Global 500m SIN Grid data set (MYD10A1). Grid cells in MYD10A1 which are obscured by cloud cover are filled by retaining clear-sky views of the surface from previous days. A separate parameter is provided which tracks the number of days in each cell since the last clear-sky observation. Each data granule contains a 10° x 10° tile projected to the 500 m sinusoidal grid.

The terms "Version 61" and "Collection 6.1" are used interchangeably in reference to this release of MODIS data.

This is the most recent version of these data.

Version Summary: 

Initial release.

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

See All Level of Service Details

Parameter(s):
  • SNOW/ICE > SNOW COVER
Data Format(s):
  • HDF-EOS2
Spatial Coverage:
N: 90, 
S: -90, 
E: 180, 
W: -180
Platform(s):Aqua
Spatial Resolution:
  • 500 m x 500 m
Sensor(s):MODIS
Temporal Coverage:
  • 4 July 2002
Version(s):V61
Temporal Resolution1 dayMetadata XML:View Metadata Record
Data Contributor(s):Hall, D. K. and G. A. Riggs.

Geographic Coverage

Other Access Options

Other Access Options

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As a condition of using these data, you must cite the use of this data set using the following citation. For more information, see our Use and Copyright Web page.

Hall, D. K. and G. A. Riggs. 2020. MODIS/Aqua CGF Snow Cover Daily L3 Global 500m SIN Grid, Version 61. [Indicate subset used]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. doi: https://doi.org/10.5067/MODIS/MYD10A1F.061. [Date Accessed].

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How To

Programmatic Data Access Guide
Data from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) can be accessed directly from our HTTPS file system or through our Application Programming Interface (API). Our API offers you the ability to order data using specific temporal and spatial filters... read more
Filter and order from a data set web page
Many NSIDC data set web pages provide the ability to search and filter data with spatial and temporal contstraints using a map-based interface. This article outlines how to order NSIDC DAAC data using advanced searching and filtering.  Step 1: Go to a data set web page This article will use the... read more
NSIDC DAAC Data Subscription Requests
Data subscriptions are available for select NSIDC DAAC data collections (found below). Our subscription service automatically sends you new data as they are delivered from active NASA satellite missions. The service cannot be applied to past data already archived at NSIDC. This service is... read more

FAQ

What data subsetting, reformatting, and reprojection services are available for MODIS data?
The following table describes the data subsetting, reformatting, and reprojection services that are currently available for MODIS data via the NASA Earthdata Search tool. Short Name Title Parameter Subsetting Spatial Subsetting... read more
What is NDSI snow cover and how does it compare to FSC?
The Normalized Difference Snow Index (NDSI) snow cover is an index that is related to the presence of snow in a pixel and is a more accurate description of snow detection as compared to Fractional Snow Cover (FSC). Snow typically has very high visible (VIS) reflectance and very low reflectance in... read more
Missing and delayed MODIS data
The lag time between observations and availability of MODIS products is only a few days. Lag time may be extended due to satellite maneuvers and extra quality assurance required for the geolocation data after the maneuver. The MODAPS... read more