Suspicion confirmed, this was a map imported with i.sentinel.import in latlong location. It forces a resolution of 20 degrees, instead of the equivalent of 20m in degrees
GRASS 7.9.dev (latlong_wgs84):~ > r.info T21JYM_20200126T134201_B11_20m +----------------------------------------------------------------------------+ | Map: T21JYM_20200126T134201_B11_20 Date: Wed Jan 29 11:09:18 2020 | | Mapset: sentinel2 Login of Creator: vandreo | | Location: latlong_wgs84 | | DataBase: /home/vandreo/grassdata | | Title: | | Timestamp: 26 Jan 2020 13:49:32.751425 | |----------------------------------------------------------------------------| | | | Type of Map: raster Number of Categories: 0 | | Data Type: FCELL | | Rows: 1 | | Columns: 1 | | Total Cells: 1 | | Projection: Latitud - Longitud. | | N: 20S S: 40S Res: 20 | | E: 40W W: 60W Res: 20 | | Range of data: min = NULL max = NULL | | | | Data Description: | | generado por r.proj | | | | Comments: | | r.proj --quiet location="temp_import_location_97485" mapset="PERMANE\ | | NT" input="T21JYM_20200126T134201_B11_20m" method="bilinear" memory=\ | | 500 resolution=20.0 | | | +----------------------------------------------------------------------------+ El mié., 29 ene. 2020 a las 11:20, Veronica Andreo (<veroand...@gmail.com>) escribió: > Hi all, > > I'm using i.sentinel.import with -r flag to import sentinel scenes into a > latlong location. No matter if I use, extent=region or extent=input, I get > empty maps imported. > > Estimated target resolution for input band > <T21JYM_20200126T134201_B8A_20m>: 0.00018570053194443554 > Using given resolution for input band <T21JYM_20200126T134201_B8A_20m>: > 20.0 > Reprojecting <T21JYM_20200126T134201_B8A_20m>... > ERROR: The reprojected raster <T21JYM_20200126T134201_B8A_20m> is empty > > Meanwhile a normal r.import with input and output, imports the map > properly. Is it possible that i.sentinel.import tries to set a 20 > resolution also in a lat long location???That would be degrees then, and > hence the empty maps... > > BTW, I noted that grass-addons repo does not have the issues activated. > With trac closed for new tickets, I think it is necessary to activate > issues in grass-addons too > > Thanks much in advance > > Vero >
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