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Radar derived seasonal surface water maps for three Indian districts (Shivamogga, Sindhudurg, Wayanad), 2017-2018

Data provided are monthly surface water layers extracted from Sentinel1A SAR data for 3 districts in India (Shivamogga, Sindhudurg, Wayanad) for the year 2017 and 2018. Surface water body layers were mapped using an average monthly threshold value extracted from the image backscatter histogram. The average threshold value excluded the monsoon months due to the difference in water and not water area. The threshold value was slightly lesser than the mean threshold value. The end product was validated using field data which resulted in user and producer accuracies. Monthly surface water body layers were not produced for a few months due to the non-availability of Sentinel 1 data. The work was supported by MRC, AHRC, BBSRC, ESRC and NERC [grant number MR/P024335/1] and NERC - SUNRISE project [grant number NE/R000131/1] Full details about this dataset can be found at https://doi.org/10.5285/3c23fea1-5b27-4b01-b9ef-fc13346cfedc

Simple

Date (Publication)
2022-02-15
Identifier
https://catalogue.ceh.ac.uk/id/3c23fea1-5b27-4b01-b9ef-fc13346cfedc
Identifier
doi: / 10.5285/3c23fea1-5b27-4b01-b9ef-fc13346cfedc
Other citation details
Uday, N.G., Purse, B., Vanak, A.T., Samrat, A., Chaudhary, A., Gerard, F. (2022). Radar derived seasonal surface water maps for three Indian districts (Shivamogga, Sindhudurg, Wayanad), 2017-2018. NERC EDS Environmental Information Data Centre 10.5285/3c23fea1-5b27-4b01-b9ef-fc13346cfedc
Author
  Ashoka Trust for Research in Ecology and the Environment - Uday, N.G.
Author
  UK Centre for Ecology & Hydrology - Purse, B.
Author
  Ashoka Trust for Research in Ecology and the Environment - Vanak, A.T.
Author
  Ashoka Trust for Research in Ecology and the Environment - Samrat, A.
Author
  Ashoka Trust for Research in Ecology and the Environment - Chaudhary, A.
Author
  UK Centre for Ecology & Hydrology - Gerard, F.
Point of contact
  Ashoka Trust for Research in Ecology and the Environment - Uday, N.G.
Custodian
  NERC EDS Environmental Information Data Centre
Publisher
  NERC EDS Environmental Information Data Centre
Owner
  Ashoka Trust for Research in Ecology and the Environment
Owner
  UK Centre for Ecology & Hydrology
Access constraints
otherRestrictions Other restrictions
Other constraints
no limitations
Use constraints
otherRestrictions Other restrictions
Other constraints
This resource is available under the terms of the Open Government Licence
Use constraints
otherRestrictions Other restrictions
Other constraints
If you reuse this data, you should cite: Uday, N.G., Purse, B., Vanak, A.T., Samrat, A., Chaudhary, A., Gerard, F. (2022). Radar derived seasonal surface water maps for three Indian districts (Shivamogga, Sindhudurg, Wayanad), 2017-2018. NERC EDS Environmental Information Data Centre https://doi.org/10.5285/3c23fea1-5b27-4b01-b9ef-fc13346cfedc
Spatial representation type
grid Grid
Distance
10  urn:ogc:def:uom:EPSG::9001
Metadata language
EnglishEnglish
Character set
utf8 UTF8
Topic category
  • Imagery base maps earth cover
Begin date
2017-01-01
End date
2018-12-31
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Unique resource identifier
WGS 84
Distribution format
  • TIFF ()

Distributor
  NERC EDS Environmental Information Data Centre
OnLine resource
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Conformance result

Date (Publication)
2010-12-08
Statement
Maps were generated using Sentinel1A GRD data pre-processed to backscatter images using the SNAP software. Surface water is identified by applying a water/non-water threshold on the SAR backscatter images. The resulting maps were validated against in situ reference data to produce a measure of class user’s and producer’s accuracy.
File identifier
3c23fea1-5b27-4b01-b9ef-fc13346cfedc XML
Metadata language
EnglishEnglish
Character set
ISO/IEC 8859-1 (also known as Latin 1) 8859 Part 1
Hierarchy level
dataset Dataset
Hierarchy level name
dataset
Date stamp
2025-06-03T07:41:51
Metadata standard name
UK GEMINI
Metadata standard version
2.3
Point of contact
  NERC EDS Environmental Information Data Centre
Lancaster Environment Centre, Library Avenue, Bailrigg , Lancaster , LA1 4AP , UK
https://eidc.ac.uk/
 
 

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