Dataset
Sustaining Himalayan Water Resources in a Changing Climate (SusHi-Wat): Monthly maps of wet and dry snow over a Himalayan river basin (January 2015 to July 2017)
Abstract
This dataset contains monthly maps of dry and wet snow for a Himalayan river basin in northern India. The data were collected as part of the Sustaining Himalayan Water Resources in a Changing Climate (SusHi-Wat) project aimed at improving our understanding on how water is stored in, and moves through, a Himalayan river system in northern India.
The maps were obtained by combining satellite remote sensing images from Sentinel-1 and the Moderate Resolution Imaging Spectroradiometer (MODIS). The resolution of the maps is 500m and the coordinate system is EPSG:4326. The dry snow data correspond to the MODIS land cover product (MCD12Q1). The wet snow data were obtained from Sentinel-1 by applying a -2dB threshold on the backscatter ratio between a Sentinel-1 image with wet snow and a reference Sentinel-1 image with only dry snow.
The possible pixel values are:
0: no snow,
1-100: wet snow cover fraction,
101-200: dry snow cover fraction with an offset of 100,
240: missing Sentinel-1 data,
250: pixel wrongly identified as wet snow by Sentinel-1 (false positives),
255: fill value.
The images are GeoTIFF formatted.
Details
| Previous Info: |
No news update for this record
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| Previously used record identifiers: |
No related previous identifiers.
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| Access rules: |
Access to these data is available to any registered CEDA user. Please Login or Register for an account to gain access.
Use of these data is covered by the following licence: http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record. |
| Data lineage: |
Data was prepared and sent to Centre for Environmental Data Analysis (CEDA) for archiving by the project team. |
| Data Quality: |
Data is as given by the data provider, no quality control has been performed by the Centre for Environmental Data Analysis (CEDA)
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| File Format: |
The images are GeoTIFF formatted.
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Process overview
Instrument/Platform pairings
Mobile platform operations
| Mobile Platform Operation 1 | Terra Satellite orbit details |
| Mobile Platform Operation 2 | Aqua Satellite orbit details |
| Output Description | None |
No variables found.
Temporal Range
2015-03-01T00:00:00
2017-07-31T22:59:59
Geographic Extent
32.9307° |
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75.8654° |
82.4498° |
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30.3205° |