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