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I work with LS8-data in a mountainous area where the illumination is poor especially in the winter months. My thought is to use either a shadow mask or apply topographic correction.

I will use all the available data for my research area over five years - aka apply a multi-temporal approach year-wise for a NDVI-time series. Is there any way to implement e.g. the C-Correction in ENVI or what would be the best way to handle the topographic shadows?

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ENVI doesn't have topographic correction tool. You can do it as a secondary product using ATCOR trough ENVI.

If you don't have license for that, I recommend you to correct your scenes via QGIS or R.

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  • Thank you! I am aware about the possibilites in QGIS and R. But would it be possible to implement my own algorithm using the gdal library if I want to use a different algorithm than the ones offered from QGIS/R? – Aldi Kasse 2 Nov 30 '17 at 10:37
  • Yes, you can. The basic form is with gdal_calc. But, you can call all gdal tools in python and implement all kind of algorithms. This can be implement also inside QGIS/R environment – aldo_tapia Nov 30 '17 at 10:46

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