More description in README

README.md

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 # Surface Velocity
 
+Scripts for estimating ice velocity from ICESat-2 data.
+
 Surface ice velocity from repeat passes using the across slope between beams and the slope between points on the same track. Cross overs could also be used. Which product?, maybe ATL06 or ATL03. It should be interesting to compare different areas (e.g. Antarctica, Greenland, Patagonia). Surface ice velocity from laser altimetry  has been done with ICESat 1 over the Ross Ice Shelf. The smaller footprint could improve the accuracy and the precise repeat passes could account for seasonality over certain regions.
 
 ## Files