ops! I forgot the list :) ---------- Forwarded message ---------- From: Veronica Andreo <[email protected]> Date: 2017-10-14 13:50 GMT+02:00 Subject: Re: [GRASS-user] i.vi (ndvi and sentinel) To: Martin Landa <[email protected]>
Hi Martin, NDVI for Sentinel 2 is estimated as described in the links you provided, i.e. band 8 (NIR) and 4 (RED). It would be possible to use band 8A (narrow IR) but resampling would be needed since B8A has 20m resolution. HTH, Vero 2017-10-14 12:36 GMT+02:00 Martin Landa <[email protected]>: > Hi, > > i.vi manual [1] shows how to compute NDVI from Sentinel-2: > > """ > Satellite specific band numbers ([NIR, Red]): > ... > Sentinel-2 Bands = [ 5, 4] > """ > > But [1] speaks about 4th and 8th band. Is it a bug in i.vi manual? > Thanks for clarification. Martin > > [1] https://grass.osgeo.org/grass72/manuals/i.vi.html#vegetation-indices > [2] https://sentinel.esa.int/web/sentinel/technical-guides/senti > nel-2-msi/level-2a/algorithm > > -- > Martin Landa > http://geo.fsv.cvut.cz/gwiki/Landa > http://gismentors.cz/mentors/landa > _______________________________________________ > grass-user mailing list > [email protected] > https://lists.osgeo.org/mailman/listinfo/grass-user
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