forrest@0: ; ***********************************************
forrest@0: ; xy_4.ncl
forrest@0: ; ***********************************************
forrest@0: load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
forrest@0: load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"
forrest@0: load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"
forrest@0: ;************************************************
forrest@0: begin
forrest@0: ;************************************************
forrest@0: ; read in data
forrest@0: ;************************************************
forrest@0:  g     = addfile ("data.81.nc","r")
forrest@0: ;g     = addfile ("data.933.nc","r")  
forrest@0:  c     = g->TNPP_C
forrest@0: ;c     = g->ANPP_C
forrest@0: ;c     = g->BNPP_C
forrest@0:  xo    = g->LONG_DD  
forrest@0:  yo    = g->LAT_DD   
forrest@0: 
forrest@0: ;print (c)
forrest@0: 
forrest@0:  nx = dimsizes(xo)
forrest@0:  do i= 0,nx-1
forrest@0:     if (xo(i) .lt. 0.) then
forrest@0:         xo(i) = xo(i)+ 360.
forrest@0:     end if
forrest@0:  end do
forrest@0: ;print (xo)
forrest@0:  
forrest@0:  f     = addfile ("i01.03cn_1545-1569_ANN_climo.nc","r")
forrest@0: ;f     = addfile ("i01.04casa_1605-1629_ANN_climo.nc","r")
forrest@0:  b     = f->NPP
forrest@0: ;b     = f->AGNPP
forrest@0: ;b     = f->BGNPP    
forrest@0:  xi    = f->lon     
forrest@0:  yi    = f->lat      
forrest@0: 
forrest@0:  sec_to_year = 86400.*365.
forrest@0: 
forrest@0:  bo = linint2_points(xi,yi,b,True,xo,yo,0) * sec_to_year
forrest@0: ;print (bo)
forrest@0:  
forrest@0:  ccr = esccr(bo,c,0)
forrest@0:  print (ccr)
forrest@0: 
forrest@0: ;old eq
forrest@0: ;bias = sum(((bo(0,:)-c(:))/c(:))^2)
forrest@0: ;M    = (1. - sqrt(bias/nx))*5.
forrest@0: 
forrest@0: ;new eq
forrest@0:  bias = sum(abs(bo(0,:)-c(:))/(bo(0,:)+c(:)))
forrest@0:  M    = (1. - (bias/nx))*5.
forrest@0: 
forrest@0:  print (bias)
forrest@0:  print (M)
forrest@0: 
forrest@0: end