将栅格堆栈写入NetCDF [英] Writing R raster stack to NetCDF

问题描述

我有一个 R网格文件，其中包含我阅读的1981年的每月温度数据并尝试使用以下代码写入NetCDF:

I've got an R grid file containing monthly temperature data for the year 1981 which I read in and tried to write to NetCDF using the following code:

library(raster)
library(ncdf4)
library(RNetCDF)

test <- raster('.../TavgM_1981.gri', package = "raster")
rstack = stack(test)

writeRaster(rstack, "rstack.nc", overwrite=TRUE, format="CDF",     varname="Temperature", varunit="degC", 
        longname="Temperature -- raster stack to netCDF", xname="X",   yname="Y",zname="nbands",
        zunit="numeric")

这将写入 NetCDF文件，但它似乎只有一个月的时间(我不是确定哪一个)，而不是一年中我用panoply检查它的12个月.

This writes the NetCDF file, but it only seems to have one month (I'm not sure which), instead of the 12 months of the year when I examine it using panoply.

是否可以写入NetCDF文件并保留来自R-grid文件的尽可能多的数据?特别是每个月的数据！

Is it possible to write the NetCDF file and keep as much of the data from the R-grid file as possible? Especially the data for each month!

新的工作代码:

test <- brick('/TavgM_1981.gri')
writeRaster(test, "rstack.nc", overwrite=TRUE, format="CDF",     varname="Temperature", varunit="degC", 
        longname="Temperature -- raster stack to netCDF", xname="Longitude",   yname="Latitude", zname="Time (Month)")

推荐答案

正如dww指出的，要获取所有图层，请

As dww pointed out, to get all layers, this

test <- raster('.../TavgM_1981.gri', package = "raster")

应该是

test <- brick('TavgM_1981.grd')

主要是将raster替换为brick.同样，三个点.../没有任何意义.可能是一个或两个点(或不必要)，并且package = "raster"参数毫无意义.

The main thing is to replace raster with brick. Also, the three dots .../ make no sense. It could be one or two dots (or unnecessary), and the package = "raster" argument is meaningless.

这篇关于将栅格堆栈写入NetCDF的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！