npp/02.read.ascii.ncl.x
author Forrest Hoffman <forrest@climatemodeling.org>
Mon, 26 Jan 2009 22:08:20 -0500
changeset 0 0c6405ab2ff4
permissions -rw-r--r--
Initial commit of C-LAMP Diagnostics from Jeff Lee
     1 ;************************************************
     2 ;    Read ascii, Write nc                         
     3 ;************************************************
     4 ;load "/fs/cgd/data0/shea/nclGSUN/gsn_code.ncl"   
     5 ;load "/fs/cgd/data0/shea/nclGSUN/gsn_csm.ncl"    
     6 ;load "/fs/cgd/data0/shea/nclGSUN/shea_util.ncl"  
     7 ;************************************************
     8 begin
     9 ;---------------------------------------------------
    10 ; final data                                    
    11   c = addfile("Npp_0.05deg_mean4.nc","c")
    12   filedimdef(c,"time",-1,True) 
    13        
    14   nlat  = 180*20 
    15   nlon  = 360*20  
    16  
    17 ;---------------------------------------------------
    18 ; input data
    19   b = "Npp_0.05deg_mean.ASCII2"                    
    20  
    21   t        = new((/1,nlat,nlon/),float)
    22   lon      = new((/nlon/),float)
    23   lat      = new((/nlat/),float)
    24   time     = new((/1/),integer)
    25 
    26 ; sam result
    27 ; lon = fspan(-180.,179.95,nlon)
    28 ; lat = fspan(-90. , 89.95,nlat)
    29  
    30   do i = 0,nlon-1
    31      lon(i) = -180. + i*(360./nlon)
    32   end do
    33  
    34   do j = 0,nlat-1
    35      lat(j) =  -90. + j*(180./nlat)
    36   end do
    37  
    38   time = 1
    39 
    40 ; print (lon)
    41 ; print (lat)       
    42 ; print (time) 
    43 ;=============================
    44     ;  create lat and long coordinate variables
    45     ;============================                                         
    46      lon!0          = "lon"
    47      lon@long_name  = "lon"
    48      lon@units      = "degrees-east"
    49      lon&lon        = lon
    50 
    51      lat!0          = "lat"
    52      lat@long_name  = "lat"
    53      lat@units      = "degrees_north"
    54      lat&lat        = lat
    55     ;=============================
    56     ;  name dimensions of t and assign coordinate variables
    57     ;============================
    58      t!0    = "time"  
    59      t!1    = "lat"
    60      t!2    = "lon"
    61      t&time = time
    62      t&lat  = lat
    63      t&lon  = lon
    64      t@long_name = "net primary production"
    65      t@units     = "gC/m^2/year"
    66      t@_FillValue= 1.e+36         
    67      t@missing_value= 1.e+36         
    68 
    69   t(0,:,:) = asciiread(b,(/nlat,nlon/),"float")
    70 
    71   c->NPP  = t
    72   c->lat  = lat
    73   c->lon  = lon
    74   c->time = time
    75 
    76   do i = 0,nlon-1           
    77   do j = 0,nlat-1                                                       
    78   if (t(0,j,i) .gt. 0.) then
    79      print (t(0,j,i))
    80   end if
    81   end do
    82   end do
    83 end