Talk:Normalized difference water index

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Why is the more common index under-emphasized?

This page emphasizes the Gao index over the more commonly used McFeeters index, which is a problem since McFeeters is for generally classifying WATER while Gao is directed at classifying vegetation moisture ("proposed for remote sensing of vegetation liquid water" to quote their paper), an important but less common use case. Most of the time, when people are coming here to quickly look up what NDWI is referring to in a paper or how to calculate it, they're going to be looking for the McFeeters equation - in part because it uses more historically commonly collected bands (green and NIR vs NIR and SWIR) which enable longer timeseries analysis for historical comparisons. But the edits have stuck the more common McFeeters index at the bottom like it's an afterthought. This is confusing and going to mislead people who are most likely dealing with the McFeeter equation, not Gao. 199.123.87.25 (talk) 16:14, 19 February 2025 (UTC)[reply]