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如何使用python xarray使用多维坐标子集数据?

我有一个使用多维坐标的netcdf文件。我的xarray数据集看起来像这样

<xarray.Dataset>
Dimensions:           (Time: 48, bottom_top: 50, bottom_top_stag: 51, 
soil_layers_stag: 4, south_north: 1015, south_north_stag: 1016, west_east: 1359, west_east_stag: 1360)
Coordinates:
XLAT              (Time, south_north, west_east) float32 18.1363 18.1456 ...
XLAT_U            (Time, south_north, west_east_stag) float32 18.1316 ...
XLAT_V            (Time, south_north_stag, west_east) float32 18.1198 ...
XLONG             (Time, south_north, west_east) float32 -122.884 ...
XLONG_U           (Time, south_north, west_east_stag) float32 -122.901 ...
XLONG_V           (Time, south_north_stag, west_east) float32 -122.879 ...
  * Time              (Time) int64 0 1 2 3 4 5 6 7 8 9 10 11 12 …
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python arrays subset multidimensional-array python-xarray

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