Sentinel-1 flood mapping with SNAP

This video shows workflow for simple mapping of flood coverage using GRD Sentinel-1 data. Video was made based on recipe found at asf.alaska.edu
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#floodmapping #remotesensing #sentinel

[@kingsleyndukwe7465]

Mr GIS, how were you able to get the AOI. I extracted mine as KMZ on google earth and then to a shape file but the shape was wrong. Please can you help?

[@kuntheanuon8723]

When I export to KMZ, it was errors and it said image could not export. why?

[@malasinha100]

if Sigma0_VV

[@kuntheanuon8723]

Dear MrGIS, I had an errors when I apply for Orbit file. Please give me your advices

[@kuntheanuon8723]

I had a problem when geometric step it can not finished Writing Target Product (stuck)

[@yuksporr]

I've tried to use this turtorial for a recent flood in Armenia, but instead of flood map I finally got radar shadow map. How can I use Sentinel data for mountain areas?

[@MrGIS]

SAR data are problematic for mountain area. I recommend You to use Sentinel-2 and try map flooding based on some indices like NDVI and NDWI.

[@phamngocquang1437]

Dear MrGIS,
Can you show me how to find these small pieces: Apply-Orbit File, Remove-GBD-Border-Noise & Speckle-Filter
Thank you

[@zaixingzai]

When exporting my image to ArcGIS, it turns out completely black. Dear Mr. GIS, what could be the reason for this? 🤔

[@MrGIS]

Check if pixels have values.

[@EarthEyeView]

Sir plzz explain me...which types of data you use in this map...and how download it🙏

[@MrGIS]

Sentinel-1 GRD-IW

[@ashimishra3024]

Dear sir/madam after extraction of water body it shows error while exporting the image in Google Earth format. Also, it can exported in other format (like geotiff/bigtiff) but shows error while opening in ArcGIS or in QGIS. One request if you can resolve the issue while exporting in Google Earth

[@swapnilsingh7670]

you can check the SNAP forum and post your queries. STEP community