我希望提取一个较大的NetCDF文件的空间子集。来自Loop through netcdf files and run calculations - Python or R
from pylab import *
import netCDF4
f = netCDF4.MFDataset('/usgs/data2/rsignell/models/ncep/narr/air.2m.1989.nc')
# print variables
f.variables.keys()
atemp = f.variables['air'] # TODO: extract spatial subset
我如何提取仅对应于一个州(比如爱荷华州)的netcdf文件子集。爱荷华州的边界经纬度如下:
经度:89° 5' W至96° 31' W
纬度:40° 36' N至43° 30' N