Internal function: convenience function to obtain the UTM zone from tile IDs.
tile_utmzone(tile_id)
Character: tile ID (5 chars), e.g. "32TNR"
(multiple values
can be provided).
A vector of the same length of tile_id
with UTM zones (e.g. "32N
").
L. Ranghetti, M. Boschetti, F. Nutini, L. Busetto (2020). "sen2r": An R toolbox for automatically downloading and preprocessing Sentinel-2 satellite data. Computers & Geosciences, 139, 104473. 10.1016/j.cageo.2020.104473, URL: https://sen2r.ranghetti.info/.