The Normalized Difference Snow Index is used to
identify snow, based on its characteristically higher reflectance in
the visible portion of the spectrum compared to the mid-IR. NDSI is
computed using the Green and Mid-IR bands, and has a range of -1.0 to
1.0. See
Riggs et al. (1994)
for details. This product is generated from the MODIS/MYD09GA surface reflectance composites.
Bands
Bands
Name
Pixel Size
Description
NDSI
463.313 meters
Normalized Difference Snow Index
Terms of Use
Terms of Use
MODIS data and products acquired through the LP DAAC have no restrictions on subsequent use, sale, or redistribution.
The Normalized Difference Snow Index is used to identify snow, based on its characteristically higher reflectance in the visible portion of the spectrum compared to the mid-IR. NDSI is computed using the Green and Mid-IR bands, and has a range of -1.0 to 1.0. See Riggs et al. (1994) for …
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],[],[[["\u003cp\u003eThis MODIS/MYD09GA_NDSI dataset has been deprecated and replaced by a newer version.\u003c/p\u003e\n"],["\u003cp\u003eIt provides daily Normalized Difference Snow Index (NDSI) globally from 2002-07-04 to 2017-03-30.\u003c/p\u003e\n"],["\u003cp\u003eNDSI helps identify snow cover based on reflectance differences in visible and mid-infrared wavelengths.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset is freely available for research, education, and non-profit use through Google Earth Engine.\u003c/p\u003e\n"],["\u003cp\u003eIt is derived from MODIS/MYD09GA surface reflectance composites and has a spatial resolution of 463.313 meters.\u003c/p\u003e\n"]]],["This dataset, now superseded by MODIS/MYD09GA_006_NDSI, provides the Normalized Difference Snow Index (NDSI) derived from MODIS/MYD09GA surface reflectance data, collected between July 4, 2002, and March 30, 2017, with a daily cadence. The NDSI, used to identify snow, is calculated from Green and Mid-IR bands, ranging from -1.0 to 1.0. The data is available via Google Earth Engine and offered at a 463.313-meter pixel size, with unrestricted use.\n"],null,["# MODIS Aqua Daily NDSI [deprecated]\n\n**Caution:** This dataset has been superseded by [MODIS/MYD09GA_006_NDSI](/earth-engine/datasets/catalog/MODIS_MYD09GA_006_NDSI). \n\nDataset Availability\n: 2002-07-04T00:00:00Z--2017-03-30T00:00:00Z\n\nDataset Provider\n:\n\n\n [Google](https://earthengine.google.com/)\n\nCadence\n: 1 Day\n\nTags\n:\n aqua \n daily \n global \n modis \n myd09ga \n ndsi \n surface-reflectance \n usgs \nvegetation-indices \n\n#### Description\n\nThe Normalized Difference Snow Index is used to\nidentify snow, based on its characteristically higher reflectance in\nthe visible portion of the spectrum compared to the mid-IR. NDSI is\ncomputed using the Green and Mid-IR bands, and has a range of -1.0 to\n1.0. See\n[Riggs et al. (1994)](https://doi.org/10.1109/IGARSS.1994.399618)\nfor details. This product is generated from the MODIS/MYD09GA surface reflectance composites.\n\n### Bands\n\n**Bands**\n\n| Name | Pixel Size | Description |\n|--------|----------------|----------------------------------|\n| `NDSI` | 463.313 meters | Normalized Difference Snow Index |\n\n### Terms of Use\n\n**Terms of Use**\n\nMODIS data and products acquired through the LP DAAC have no restrictions on subsequent use, sale, or redistribution.\n**Important:** Earth Engine is a platform for petabyte-scale scientific analysis and visualization of geospatial datasets, both for public benefit and for business and government users. Earth Engine is free to use for research, education, and nonprofit use. To get started, please [register for Earth Engine access.](https://console.cloud.google.com/earth-engine) \n[MODIS Aqua Daily NDSI \\[deprecated\\]](/earth-engine/datasets/catalog/MODIS_MYD09GA_NDSI) \nThe Normalized Difference Snow Index is used to identify snow, based on its characteristically higher reflectance in the visible portion of the spectrum compared to the mid-IR. NDSI is computed using the Green and Mid-IR bands, and has a range of -1.0 to 1.0. See Riggs et al. (1994) for ... \nMODIS/MYD09GA_NDSI, aqua,daily,global,modis,ndsi,surface-reflectance,usgs,vegetation-indices \n2002-07-04T00:00:00Z/2017-03-30T00:00:00Z \n-90 -180 90 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [](https://doi.org/https://earthengine.google.com/)\n- [](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/MODIS_MYD09GA_NDSI)"]]
