为什么ncl找不到netcdf文件？

Question

我在Ubuntu 14.04下使用Trusty的ncl-ncarg 6.1.2-7。我创建了一个从usr/share/ncarg到usr/lib的软链接，并通过以下方式设置环境和路径：

export NCARG_ROOT="/usr"
export PATH=$NCARG_ROOT/bin:$PATH

我有一个从3个netCDF文件创建拼板图的simple_plot_pr.ncl。

load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"

begin
   ;-- read data and set variable references
       f1 = addfile ("home/robert/Dokumenty/climatological monthly mean pr_1971-2000.nc","r")
       f2 = addfile ("home/robert/Dokumenty/climatological monthly mean pr_2021-2050.nc","r")
       f3 = addfile ("home/robert/Dokumenty/climatological monthly mean pr_2071-2100.nc","r")

       pr1 = f1->pr
       pr2 = f2->pr
       pr3 = f3->pr
;-- open a PNG file
    wks = gsn_open_wks("png","panel_plot")
;-- create plot array
    plot = new(3,graphic)
;-- set resources for contour plots
    res = True
    res@gsnMaximize = True
    res@cnFillOn = True
    res@tiMainString = "Climatological mean monthly precipitation amount"
    gsn_define_colormap(wks,"rainbow")
    plot(0) = gsn_csm_colormap(wks,pr1(:,:),res)
    res@tiMainString = ""
    plot(1) = gsn_csm_colormap(wks,pr2(:,:),res)
    res@tiMainString = ""
    plot(3) = gsn_csm_colormap(wks,pr3(:,:),res)
    ;-- create panel plot
    gsn_panel(wks,plot,(/3,1/),False)
end

当我运行此.ncl文件时，我收到以下错误消息：

Copyright (C) 1995-2013 - All Rights Reserved
 University Corporation for Atmospheric Research
 NCAR Command Language Version 6.1.2
 The use of this software is governed by a License Agreement.
 See http://www.ncl.ucar.edu/ for more details.
fatal:["FileSupport.c":2761]:_NclFindFileExt: Requested file <home/Dokumenty/climatological monthly mean pr_1971-2000.nc> or <home/Dokumenty/climatological monthly mean pr_1971-2000> does not exist

fatal:["FileSupport.c":3106]:(home/Dokumenty/climatological monthly mean pr_1971-2000.nc) has no file extension, can't determine type of file to open
fatal:["FileSupport.c":2761]:_NclFindFileExt: Requested file <home/robert/Dokumenty/climatological monthly mean pr_2021-2050.nc> or <home/robert/Dokumenty/climatological monthly mean pr_2021-2050> does not exist

fatal:["FileSupport.c":3106]:(home/robert/Dokumenty/climatological monthly mean pr_2021-2050.nc) has no file extension, can't determine type of file to open
fatal:["FileSupport.c":2761]:_NclFindFileExt: Requested file <home/robert/Dokumenty/climatological monthly mean pr_2071-2100.nc> or <home/robert/Dokumenty/climatological monthly mean pr_2071-2100> does not exist

fatal:["FileSupport.c":3106]:(home/robert/Dokumenty/climatological monthly mean pr_2071-2100.nc) has no file extension, can't determine type of file to open
fatal:file (f1) isn't defined
fatal:["Execute.c":8128]:Execute: Error occurred at or near line 11 in file simple_plot_pr.ncl

我检查了这些文件，它们确实存在。我不明白为什么ncl找不到他们？有人能给我一个解决这个问题的建议吗？

Answer 1

错误肯定是由于文件名中的空格引起的。请重命名不带空格的文件名。

Answer 2

您还可以在文件名中的空格前使用正斜杠。例如。您可以按以下格式编写文件名，而不是编写“气候学月平均值pr_1971-2000.nc”。“气候\月度\平均值\pr_1971-2000。pr”