pro write_CRF_comparison_histos, fname, log_iwp_bins, forcing_bins

common total_forcing_comparison_arrays, toa_net_forcing_comparison_total, toa_solar_forcing_comparison_total, $
toa_ir_forcing_comparison_total, sfc_net_forcing_comparison_total, $
sfc_solar_forcing_comparison_total,sfc_ir_forcing_comparison_total, atm_net_forcing_comparison_total, $
atm_solar_forcing_comparison_total,atm_ir_forcing_comparison_total

; check to see if the file exists

OPENR, 1, fname, ERROR = err

if err eq 0 then begin
close, 1

; file exists, read the data
cdfid=ncdf_open(fname,/write)
print, 'writing to ',fname

toa_net_forcing_comparison_total_id=ncdf_varid(cdfid, 'toa_net_forcing_comparison_total')
toa_solar_forcing_comparison_total_id=ncdf_varid(cdfid, 'toa_solar_forcing_comparison_total')
toa_ir_forcing_comparison_total_id=ncdf_varid(cdfid, 'toa_ir_forcing_comparison_total')
sfc_net_forcing_comparison_total_id=ncdf_varid(cdfid, 'sfc_net_forcing_comparison_total')
sfc_solar_forcing_comparison_total_id=ncdf_varid(cdfid, 'sfc_solar_forcing_comparison_total')
sfc_ir_forcing_comparison_total_id=ncdf_varid(cdfid, 'sfc_ir_forcing_comparison_total')
atm_net_forcing_comparison_total_id=ncdf_varid(cdfid, 'atm_net_forcing_comparison_total')
atm_solar_forcing_comparison_total_id=ncdf_varid(cdfid, 'atm_solar_forcing_comparison_total')
atm_ir_forcing_comparison_total_id=ncdf_varid(cdfid, 'atm_ir_forcing_comparison_total')

ncdf_varput, cdfid, toa_net_forcing_comparison_total_id, toa_net_forcing_comparison_total
ncdf_varput, cdfid, toa_solar_forcing_comparison_total_id, toa_solar_forcing_comparison_total
ncdf_varput, cdfid, toa_ir_forcing_comparison_total_id, toa_ir_forcing_comparison_total
ncdf_varput, cdfid, sfc_net_forcing_comparison_total_id, sfc_net_forcing_comparison_total
ncdf_varput, cdfid, sfc_solar_forcing_comparison_total_id, sfc_solar_forcing_comparison_total
ncdf_varput, cdfid, sfc_ir_forcing_comparison_total_id, sfc_ir_forcing_comparison_total
ncdf_varput, cdfid, atm_net_forcing_comparison_total_id, atm_net_forcing_comparison_total
ncdf_varput, cdfid, atm_solar_forcing_comparison_total_id, atm_solar_forcing_comparison_total
ncdf_varput, cdfid, atm_ir_forcing_comparison_total_id, atm_ir_forcing_comparison_total

endif else begin	;OPENR, 1, fname, ERROR = err

; file does not exist, create it
cdfid=ncdf_create(fname,/clobber)
print, 'created ',fname
forcing_bins_did=ncdf_dimdef(cdfid,'forcing_bins',n_elements(forcing_bins))
log_iwp_bins_did=ncdf_dimdef(cdfid,'log_iwp_bins',n_elements(log_iwp_bins))

forcing_bins_id=ncdf_vardef(cdfid,'forcing_bins',$
	[forcing_bins_did],/float)

toa_net_forcing_comparison_total_id=ncdf_vardef(cdfid, 'toa_net_forcing_comparison_total',$
	[forcing_bins_did,forcing_bins_did],/long)
toa_solar_forcing_comparison_total_id=ncdf_vardef(cdfid, 'toa_solar_forcing_comparison_total',$
	[forcing_bins_did,forcing_bins_did],/long)
toa_ir_forcing_comparison_total_id=ncdf_vardef(cdfid, 'toa_ir_forcing_comparison_total',$
	[forcing_bins_did,forcing_bins_did],/long)

sfc_net_forcing_comparison_total_id=ncdf_vardef(cdfid, 'sfc_net_forcing_comparison_total',$
	[forcing_bins_did,forcing_bins_did],/long)
sfc_solar_forcing_comparison_total_id=ncdf_vardef(cdfid, 'sfc_solar_forcing_comparison_total',$
	[forcing_bins_did,forcing_bins_did],/long)
sfc_ir_forcing_comparison_total_id=ncdf_vardef(cdfid, 'sfc_ir_forcing_comparison_total',$
	[forcing_bins_did,forcing_bins_did],/long)

atm_net_forcing_comparison_total_id=ncdf_vardef(cdfid, 'atm_net_forcing_comparison_total',$
	[forcing_bins_did,forcing_bins_did],/long)
atm_solar_forcing_comparison_total_id=ncdf_vardef(cdfid, 'atm_solar_forcing_comparison_total',$
	[forcing_bins_did,forcing_bins_did],/long)
atm_ir_forcing_comparison_total_id=ncdf_vardef(cdfid, 'atm_ir_forcing_comparison_total',$
	[forcing_bins_did,forcing_bins_did],/long)


ncdf_control, cdfid, /endef
ncdf_varput, cdfid, forcing_bins_id, forcing_bins


ncdf_varput, cdfid, toa_net_forcing_comparison_total_id, toa_net_forcing_comparison_total
ncdf_varput, cdfid, toa_solar_forcing_comparison_total_id, toa_solar_forcing_comparison_total
ncdf_varput, cdfid, toa_ir_forcing_comparison_total_id, toa_ir_forcing_comparison_total
ncdf_varput, cdfid, sfc_net_forcing_comparison_total_id, sfc_net_forcing_comparison_total
ncdf_varput, cdfid, sfc_solar_forcing_comparison_total_id, sfc_solar_forcing_comparison_total
ncdf_varput, cdfid, sfc_ir_forcing_comparison_total_id, sfc_ir_forcing_comparison_total
ncdf_varput, cdfid, atm_net_forcing_comparison_total_id, atm_net_forcing_comparison_total
ncdf_varput, cdfid, atm_solar_forcing_comparison_total_id, atm_solar_forcing_comparison_total
ncdf_varput, cdfid, atm_ir_forcing_comparison_total_id, atm_ir_forcing_comparison_total


endelse		;OPENR, 1, fname, ERROR = err


NCDF_CLOSE, cdfid

return
end