How to Prepare Normalized Difference Water Index (NDWI) and Extract Water Bodies from NDWI

How to Prepare Normalized Difference Water Index (NDWI) and Extract Water Bodies from NDWI.
Normalized Difference Water Index (EOS Data Analytics): eos.com/make-a...
The Normalized Difference Water Index (NDWI) is used to highlight open water features in a satellite image, allowing a water body to “stand out” against the soil and vegetation.
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Tags,
#NDWI
#WaterBodyExtraction
#RemoteSensing
#SatelliteImagery
#GIS
#GeospatialAnalysis
#ImageProcessing
#WaterDetection
#EnvironmentalMonitoring
#Hydrology

[@costa2150]

well done. a demo how to filter out the smaller noise/errors and/or by size of water body would be a great add on. thanks

[@mohit_booora]

sir doing great job

[@vikasghadamode]

Thank you

[@mofolasadeAryk]

I actually need this video now for an assignment

[@vikasghadamode]

Okay hope it will help you

[@OjoOlaitan-c4s]

Sir. Can I use this method to delineate waterlogged areas?

[@PoojaSudheer-j1s]

Sir, I have a doubt regarding using Landsat data. Do we not need to project the images from Landsat 8 data?
In one of your videos while creating a shape file and defining its coördinate system you chose same as composite. So do we need to project Landsat data?

[@vikasghadamode]

@@PoojaSudheer-j1s No need to Project Landsat imagery, Because they are already projected, you can check projection in Source

[@shiburajkhowa494]

Thnq🎉

[@ankitashinde3228]

Sir I want to know how to delete that unwanted water bodies which are not accurately classified.
Which function I have to use?

[@vikasghadamode]

@@ankitashinde3228 You need to convert water bodies file from Raster to vector, after it converts to vector you can delete unwanted water bodies area

[@moo_moon128]

which software is this sir?

[@vikasghadamode]

ArcGIS Pro

[@akuma404-A]

I'm having the problem where snow is also included within water body values

[@vikasghadamode]

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