我有一个用于记录海洋温度的NetCDF文件。它有1个变量(“temp”)和4个维度(时间,经度,纬度和深度)。我想要仅提取每个时间,经度和纬度上的最大深度处的温度,以获取底部海洋温度栅格砖。我可以使用R或在终端中使用气候数据操作器。
NetCDF文件的属性
nc_open('data.pre1980.nc')
File data.pre1980.nc (NC_FORMAT_CLASSIC):
1 variables (excluding dimension variables):
float temp[lon,lat,depth,time]
standard_name: sea_water_temperature
long_name: TEMPERATURE
units: Celsius_scale
_FillValue: -9.98999971057742e+33
missing_value: -9.98999971057742e+33
pointwidth: 1
4 dimensions:
time Size:324 *** is unlimited ***
standard_name: time
units: months since 1960-01-01
calendar: 360_day
axis: T
lon Size:440
standard_name: longitude
long_name: longitude
units: degree_east
axis: X
lat Size:179
standard_name: latitude
long_name: latitude
units: degree_north
axis: Y
depth Size:40
units: meters
axis: Z
gridtype: 0
4 global attributes:
CDI: Climate Data Interface version 1.9.6 (http://mpimet.mpg.de/cdi)
Conventions: CF-1.6
history: Fri Aug 16 13:33:42 2019: cdo merge data.nc data.nc.1 data.nc.2 data.nc.3 data.nc.4 data.nc.5 data.pre1980.nc
CDO: Climate Data Operators version 1.9.6 (http://mpimet.mpg.de/cdo)
感谢您的提前支持!
from nco import Nco from nco.custom import Limit, LimitSingle nco = Nco() opt = [ Limit("depth", -1) ] nco.ncks(input='filename.nc', output='filename_bottomT.nc', options=opt)
- ArnoLB