mardi 3 mars 2015

Do I need to transform wind vectors when changing projection from EPSG4326 to EPSG24373?


I have a set of points and polygons given in "normal" lat/lon coordinates EPSG4326, which I need to transform to EPSG24373. I can do this without problem using PROJ4. However, I also have wind vectors (given as u and v, i.e., m s-1 in N and E direction) for several point locations. Question is: When I go from EPSG4326 to EPSG24373, do I also need to transform the wind vectors in any way?


My guess would be no, because the wind is given in m s-1 anyways (which is basically the target projection, except for the difference Indian yard <-> meter). However, I wanted to have an expert opinion on this, as I'm not too familiar with geographical projections.





Aucun commentaire:

Enregistrer un commentaire