MODIS/Aqua Snow Cover Daily L3 Global 0.05Deg CMG, Version 6

Data set id:

MYD10C1

DOI: 10.5067/MODIS/MYD10C1.006

Data Citation and Acknowledgment
As a condition of using these data, you must cite the use of this data set. Such a practice gives credit to data set producers and advances principles of transparency and reproducibility.

Hall, D. K. & Riggs, G. A. (2016). MODIS/Aqua Snow Cover Daily L3 Global 0.05Deg CMG. (MYD10C1, Version 6). [Data Set]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/MODIS/MYD10C1.006. [describe subset used if applicable]. Date Accessed 12-11-2024.

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There is a more recent version of these data.
Version Summary

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Fractional Snow Cover (FSC) previously used as input to this data set has been replaced by Normalized Difference Snow Index (NDSI) snow cover;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;

Overview

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 MODIS/Aqua Snow Cover Daily L3 Global 0.05Deg CMG, Version 61 as an alternative.

Parameter(s):

SNOW COVER

Platform(s):

AQUA

Sensor(s):

MODIS

Data Format(s):

HDF-EOS2

Temporal Coverage:

4 July 2002 to 25 February 2023

Temporal Resolution:

1 day

Spatial Resolution:

0.05 deg

0.05 deg

Spatial Coverage:

N:

90

S:

-90

E:

180

W:

-180

Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.

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Data Access & Tools

This data set has been retired. There is a more recent version of these data.

Documentation

User Guide

Documentation for MODIS/Aqua Snow Cover Daily L3 Global 0.05Deg CMG, Version 6 User Guide

Help Articles

General Questions & FAQs

Can I merge different MODIS collections?

For the snow cover and sea ice products, users can use MODIS Collections 6 and 6.1 together.

Data products from VIIRS are created to be similar to MODIS data products to ensure the continuity needed for the development of snow and sea ice climate records beyond the life expectancy of MODIS. The temporal resolution and spatial extent are identical in MODIS and VIIRS.

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.

This short article describes the customization services available for ICESat-2 data using Earthdata Search

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 reflectan

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