Discrete point data interpolation

wudipao88

Hi! I now have a .xyz of discrete point data, which contains three vectors (longitude vector, latitude vector, value vector). How should I interpolate this discrete data into my model domain? Thank you!

mathieumorlighem

If the data is in the form of a cloud of points, the easiest may be to use MATLAB's griddata function:

%interpolate lat/lon/temp onto mesh
data_mesh = griddata(lon, lat, data, md.mesh.long, md.mesh.lat);

you can use different interpolation method, see help griddata.
Cheers
Mathieu

wudipao88

mathieumorlighem It works very well, thank you so much!