Topographic Correction in Antarctica

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03-10-2021 03:26 AM
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GeoKapor
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Hi!

I've got the following problems with my project. My task is complete the NDSI index calculation in the Antartic region. A problem is some pixel values are much lower than should be. 


forum1.jpg

 

NDSi (Blue = Thick snow, Green = Very think snow and ice, Red = no snowNDSi (Blue = Thick snow, Green = Very think snow and ice, Red = no snow

 

I'm using ArcMap 10.4.1 verison. My data came from Landsat OLI 8 satellite (https://earthexplorer.usgs.gov/) and the DEM data from REMA database (https://www.pgc.umn.edu/data/rema/)

I've read about Topographic correction, but It didn't work succesfully. I didn't get higher pixel values behind the mountainous area. 

I also tried this toolbox, but the ArcMap crashed while the last correction was running. That happend 3 times in the same point of the progress.( https://hub.arcgis.com/datasets/fd6ed990984945d5a9827418e67f26df )

 

Thanks for the help! 

Spoiler
 

 

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