I have Gebco-2014 satellite bathymetry data, from which i have to calculate water effect and find bouguer anomaly. When i change the node registered bathy to pixel registered, then, basemap region changes slightly, just like latitude 5 to 4.99999. Due to which my region is being different from the satellite gravity as it says grid size is not same.
I am using grdsample for converting from node to pixel using -T.