Regrid ntdcf file usig xarray

import xarray as xr
import numpy as np

ds = xr.open_dataset(path_file)

new_lon = np.arange(0,360,0.25)   #to regrid all 0.25°
new_lat = np.arange(90,-90.25,-0.25)

dsi = ds.interp(lat = new_lat, lon = new_lon)
happy penguin