Rochdi Posted November 16, 2020 Share Posted November 16, 2020 (edited) Hello Experts, I would like to learn how to calculate some indices to detect Gypsum and other minerals on Ritchey crater, I decided to start first with the formulations included in "CRISM Data Product Software Interface Specification" (as seen below) to seek out gypsum. However, I didn't clearly understand the syntax of the mentioned formulations, I mean (R, a, b ... etc), I found these formulations more detailed compared to the indices I've calculated before such as NDVI, EVI, SAVI ... (using Landsat8, Spot imageries). Would you please explain to me the syntax of these formulations and what do I need to get started with before diving into this process? Look forward to your reply, Rochdi. Edited November 16, 2020 by Rochdi Link to comment Share on other sites More sharing options...
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