Yes I know that netcdf files store arrays of data and that each us treated as a subset of the main file.
This is not a case for raster calculator. NIR is it a case requiring a hydrological plugin. In ArcGis, which is no longer available to me, I used a built in tool to overlay the raster vegetation map with the netcdf shape file representing the hydrological metric of interest. Perhaps extracting each metric to its own file will yield a reasonable method. Thanks On Apr 14, 2014 1:57 PM, "Etienne Tourigny" <[email protected]> wrote: > > You should use the raster calculator to do any calculations on rasters, or some of the tools in processing. But your use case seems a bit complicated - perhaps there is a hydrological plugin or processing algorithm that can help. > > Have you tried loading the file in QGIS? > > But be aware that netcdf files with many variables are a bit tricky - each variable is a subdataset, which is treated as a separate file. See the gdal netcdf page for more details [1]. > > You could translate them to individual files in another format like gtiff using gdal: > > gdal_translate -of gtiff -sds in.nc out > > > [1] http://www.gdal.org/frmt_netcdf.html > > > > On Mon, Apr 14, 2014 at 1:28 PM, Steve Friedman <[email protected]> wrote: >> >> No. The Netcdf file has 20+ variables. It is a spatially explicit data for hydrological metrics in a large wetland. I want to associate these variables with a vegetation map of the same area. Then I will conduct a GLM multinomial statistical analysis to derive probabilities of vegetation community based on the spatial distribution of the hydrologic metrics. >> >> Hope that make the problem clearer. If not let me know and I'll try to make it more explicit. >> >> Thanks >> Steve >> >> On Apr 14, 2014 10:58 AM, "Etienne Tourigny" <[email protected]> wrote: >>> >>> I don't understand what you mean. You have a netcdf file with 1 variable that has 20+ attributes, and you want to copy them to another raster as metadata? What is the format of your raster? >>> >>> >>> On Mon, Apr 14, 2014 at 9:07 AM, Steve Friedman <[email protected]> wrote: >>>> >>>> Hello >>>> >>>> I have a netcdf file with 20+ attributes that I need to link to a raster layer. >>>> >>>> I do not see a method for this. I am hoping that I have just missed something obvious. >>>> >>>> Can someone point me in the right direction. >>>> >>>> Thank you >>>> Steve >>>> >>>> _______________________________________________ >>>> Qgis-user mailing list >>>> [email protected] >>>> http://lists.osgeo.org/mailman/listinfo/qgis-user >>> >>> >
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