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; ****************************************************
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; combine scatter, histogram, global and zonal plots
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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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; Main code.
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begin
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;===================================================
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; observed station name and location (lat,lon)
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;===================================================
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beta_4_ob = 0.60
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station = (/"DukeFACE" \
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,"AspenFACE" \
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,"ORNL-FACE" \
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,"POP-EUROFACE" \
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/)
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lat_ob = (/ 35.58, 45.40, 35.54, 42.22/)
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lon_ob = (/-79.05, -89.37, -84.20, 11.48/)
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lon_ob = where(lon_ob.lt.0.,lon_ob+360.,lon_ob)
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;print (lon_ob)
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n_sta = dimsizes(station)
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;====================================================
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; model data
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;====================================================
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co2_i = 283.1878
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co2_f = 364.1252
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;model_name_i = "i01.07cn"
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;model_name_f = "i01.10cn"
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model_name_i = "i01.07casa"
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model_name_f = "i01.10casa"
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dirm = "/fis/cgd/cseg/people/jeff/clamp_data/model/"
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film_i = model_name_i + "_1990-2004_ANN_climo.nc"
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film_f = model_name_f + "_1990-2004_ANN_climo.nc"
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fm_i = addfile (dirm+film_i,"r")
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fm_f = addfile (dirm+film_f,"r")
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npp_i = fm_i->NPP
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npp_f = fm_f->NPP
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xm = fm_i->lon
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ym = fm_i->lat
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npp_i_4 =linint2_points(xm,ym,npp_i,True,lon_ob,lat_ob,0)
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npp_f_4 =linint2_points(xm,ym,npp_f,True,lon_ob,lat_ob,0)
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; Units for these variables are:
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; npp_i: g C/m^2/s
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print (npp_i_4)
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print (npp_f_4)
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;============================
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;compute beta
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;============================
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beta_4 = new((/n_sta/),float)
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beta_4 = ((npp_f_4/npp_i_4) - 1.)/log(co2_f/co2_i)
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beta_4_avg = avg(beta_4)
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print (beta_4)
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print (beta_4_avg)
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M_beta = abs((beta_4_avg/beta_4_ob) - 1.)* 5.
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print (M_beta)
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end
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