I'm trying to extract bathymetry of Mediterranean Sea raster GeoTIFF file (downloaded from https://www.bodc.ac.uk/data/hosted_data_systems/gebco_gridded_bathymetry_data/gebco_30_second_grid/) from bathymetry (vector mask layer) downloaded from Natural Earth data.
After I selected bathymetry depth 0 at query builder of the vector layer, used Raster > Extraction > Clip raster by mask layer, but the area of elevation its grayed and not deleted.
I tried save as both layers raster and vector with same CRS WGS 84 and still the same result. After save as the raster GeoTIFF (GEBCO2014_-12.3),(Gebco 4326 GeoTIFF) in CRS WGS 84 used again Raster > Extraction > Clip raster by mask layer.
How can i resolve this ?