Hi, In addition, the means sea level is dependent on a model (geiod). Try to find out what “sea level” you need.
Nicolas Cadieux https://gitlab.com/njacadieux > Le 3 mai 2022 à 06:08, kirk via Qgis-user <[email protected]> a écrit > : > > > Hi Navneet > > This is classic raster analysis. You will need the corresponding Digital > Elevation File (DEM). If your water table data are in vector fomat, you will > have to rasterize the data, preferably to the same resolution as the dem. > Then you can use the grid calculator to subtract the water tabke depth from > the dem. The resulting raster will be your water table height above sea > level or the zero reference for the dem. You can contour the raster after > that if required. > > Kirk Schmidt > > > > Sent from my Galaxy > > > -------- Original message -------- > From: nr via Qgis-user <[email protected]> > Date: 2022-05-03 5:08 a.m. (GMT-04:00) > To: [email protected] > Subject: [Qgis-user] How to convert depth belw ground level to depth below > mean sea level in QGIS > > Dear friends, > > The data provided for depth of water table in my country by the CGWB is depth > below ground level , but for drawing the water table contours in modflow > software the depth of water below mean sea level is needed. > So how the depth below ground level can be converted to depth with reference > to mean sea level in QGIS > > Regards > Navneet > QGIS user > _______________________________________________ > Qgis-user mailing list > [email protected] > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
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