diff -r 000000000000 -r 0c6405ab2ff4 npp/14.scatter_bias.ncl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/npp/14.scatter_bias.ncl	Mon Jan 26 22:08:20 2009 -0500
@@ -0,0 +1,57 @@
+; ***********************************************
+; xy_4.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 in data
+;************************************************
+ g     = addfile ("data.81.nc","r")
+;g     = addfile ("data.933.nc","r")  
+ c     = g->TNPP_C
+;c     = g->ANPP_C
+;c     = g->BNPP_C
+ xo    = g->LONG_DD  
+ yo    = g->LAT_DD   
+
+;print (c)
+
+ nx = dimsizes(xo)
+ do i= 0,nx-1
+    if (xo(i) .lt. 0.) then
+        xo(i) = xo(i)+ 360.
+    end if
+ end do
+;print (xo)
+ 
+ f     = addfile ("i01.03cn_1545-1569_ANN_climo.nc","r")
+;f     = addfile ("i01.04casa_1605-1629_ANN_climo.nc","r")
+ b     = f->NPP
+;b     = f->AGNPP
+;b     = f->BGNPP    
+ xi    = f->lon     
+ yi    = f->lat      
+
+ sec_to_year = 86400.*365.
+
+ bo = linint2_points(xi,yi,b,True,xo,yo,0) * sec_to_year
+;print (bo)
+ 
+ ccr = esccr(bo,c,0)
+ print (ccr)
+
+;old eq
+;bias = sum(((bo(0,:)-c(:))/c(:))^2)
+;M    = (1. - sqrt(bias/nx))*5.
+
+;new eq
+ bias = sum(abs(bo(0,:)-c(:))/(bo(0,:)+c(:)))
+ M    = (1. - (bias/nx))*5.
+
+ print (bias)
+ print (M)
+
+end