;+
;
; .. _TropFlux_swr_DT_19890101_20071231.pro:
;
; =====================================
; TropFlux_swr_DT_19890101_20071231.pro
; =====================================
;
;
;     .. graphviz::
;
;        digraph tropflux_swr_dt_19890101_20071231 {
;           graph [
;           rankdir="LR",
;           ]
;
;           file_swr [shape=ellipse,fontname=Courier,label="/Volumes/Iomega_HDD/work/flux_reconstruction/OAFLX_GRID/swr_oafluxgrid_1985_2007.nc"];
;
;           ncfile [shape=ellipse,fontname=Courier,label="/Users/pkb/data/TropFlux/TropFlux_swr_19890101_20071231_DT_v50.nc"];
;
;           tropflux_swr_dt_19890101_20071231 [shape=box,
;           fontname=Courier,
;           color=blue,
;           URL="http://forge.ipsl.jussieu.fr/tropflux/browser/trunk/src/TropFlux_swr_DT_19890101_20071231.pro",
;           label="${PROJECT}/src/TropFlux_swr_DT_19890101_20071231.pro"];
;
;           {file_swr}-> {tropflux_swr_dt_19890101_20071231} -> {ncfile}
;
;        }
;
; SEE ALSO
; ========
;
; :func:`initncdf <saxo:initncdf>`
; :func:`read_ncdf <saxo:read_ncdf>`
; :func:`grossemoyenne <saxo:grossemoyenne>`
; :func:`julday <saxo:julday>`
; :func:`caldat <saxo:caldat>`
; :func:`ncdf_quickwrite <saxo:ncdf_quickwrite>`
;
; EXAMPLES
; ========
;
; ::
;
;  IDL> tropflux_swr_dt_19890101_20071231
;
; TODO
; ====
;
; hard coded directory - usage of ${PROJECT_ID}
;
; coding rules
;
; change the name to swr_dt_correction_ndcf.pro
;
; EVOLUTIONS
; ==========
;
; - fplod 20101215T091726Z aedon.locean-ipsl.upmc.fr (Darwin)
;
;   * add graph in header
;
; - fplod 20101214T093615Z aedon.locean-ipsl.upmc.fr (Darwin)
;
;   * minimal header
;
; - pbk 2008
;
;   * creation
;
;-
pro TropFlux_swr_DT_19890101_20071231
@common
file='/Volumes/Iomega_HDD/work/flux_reconstruction/OAFLX_GRID/swr_oafluxgrid_1985_2007.nc'
initncdf, file

sw=read_ncdf("swr", 19890101, 20071231, file=file,/nostr)
help, sw

sw_mean=grossemoyenne(sw, 't',/nan)
help, sw_mean

tt=time & jpt=n_elements(time)
caldat, time,mon,day,yea
sw_m=sw*0. &  sw_bias=sw*0.

for jt=0,jpt-1 do begin
  jtt=(time(jt)-julday(1,1,yea(jt))) < 364
  swr=reform(sw_mean(*,*))
  sw_m(*,*,jt)=swr
  sw_bias(*,*,jt)=(((swr-295.4)*18.36/(200.-295.4)) > 0.) < 18.37
endfor

help, sw_m, sw_bias
swa=sw-sw_m
swa=swa/(0.901273)       ;; variability correction (seasonal_cycle_swr_isccp.pro)

swr=sw_m+swa-sw_bias       ;; new swr, corrected for bias and variability
;writing field
;time=julday(1,1,1989)+lindgen(7670)
cda0=string(jul2date(tt(0)),format='(i8.8)')
cda1=string(jul2date(tt(jpt-1)),format='(i8.8)')

lat=reform(gphit(0,0:jpj-1))
lon=reform(glamt(0:jpi-1,0))
time=time-julday(1,1,1950) & jpt=n_elements(time)

ncfile='!/Users/pkb/data/TropFlux/TropFlux_swr_19890101_20071231_DT_v50.nc'
lon_attr={units:'degrees_east',long_name:'Longitude'}
lat_attr={units:'degrees_north',long_name:'Latitude'}
time_attr={units:'days since 1950-01-01 00:00:00',long_name:'Time axis',time_origin:'1950-JAN-01 00:00:00'}
sw_attr={units:'w/m^2',missing_value:1.e20,long_name:'Net Shortwave Radiation',short_name:'swr',axis:'TYX'}
globattr={source:'Obtained from ISCCP.  Corrections has been done on mean bias and variability',timerange:cda0+' - '+cda1}


ncfields = 'swr[longitude,latitude,time]=swr:sw_attr; ' $
                      + 'longitude[]=lon:lon_attr; ' $
                      + 'latitude[]=lat:lat_attr; ' $
                      + 'time[*time]=time:time_attr ' $
                      + ' @ globattr'

@ncdf_quickwrite

end