擅长:python、mysql、java
<p>@serge ballesta-谢谢你的指导</p>
<p>回答我自己的问题</p>
<p>将纬度和经度(platecaree投影)投影到GEOS投影CRS上。找到x和y。使用此x和y以及xarray的最近选择方法从dask数组中获取像素值</p>
<pre><code>import cartopy.crs as ccrs
data_crs = ccrs.Geostationary(central_longitude=41.5, satellite_height=35785831, false_easting=0, false_northing=0, globe=None, sweep_axis='y')
lon = 77.541677 # longitude of interest
lat = 8.079148 # latitude of interst
# lon lat system in
x, y = data_crs.transform_point(lon, lat, src_crs=ccrs.PlateCarree())
dn = ds.sel(x=x,y=y, method='nearest')
</code></pre>