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ecmwf_functions.ncl
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ecmwf_functions.ncl
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;===================================================================================================
; read in boundary condition data from ECMWF files
;
; reads in entire file and then restricts to chosen times
; interpolates to required frequency from 6 or 12 hourly data
;===============================================================
;============
; CONTAINS
; temp_interp
; read_ecmwf
; read_ecmwf_pad
; blend_data
function temp_interp(in_data:float,t_required:integer)
local in_data,t_required,time_dim
begin
time_dim = 0
in_data_ti = linint1_n_Wrap (in_data&time,in_data,False,t_required,0,time_dim)
in_data_ti!0 = "time"
delete([/time_dim/])
return(in_data_ti)
end
function read_ecmwf(ecmwf_path:string,lat_ec_out:float,lon_ec_out:float,\
flag_subset:logical,set_lat_min:float,set_lat_max:float,\
set_lon_min:float,set_lon_max:float,\
t_required:integer)
local ecmwf_path,lat_ec_out,lon_ec_out,flag_subset,set_lat_min,set_lat_max,\
set_lon_min,set_lon_max,t_required,\
lat_min,lat_max,lon_min,lon_max,data_path_matr,data_path,\
ec_file,lat_ec_in,lon_ec_in,time,data_tmp,data_tmp2,\
time_zero,dsize,t_soil_tmp,q_soil_tmp,\
albedo,anor,heat_rough,high_veg_cover,high_veg_type, isor,\
low_veg_cover,low_veg_type,lsm,mom_rough,open_sst,sdfor,sdor,\
sea_ice_frct,slor,t_sea_ice,z_sfc,orog,t_skin,q_skin,t_soil,q_soil
begin
;================================================;
; Read in ECMWF file for reference co-ordinates ;
;================================================;
print("read in ECMWF forcing files")
if (flag_subset) then
lat_min = set_lat_min
lat_max = set_lat_max
lon_min = set_lon_min
lon_max = set_lon_max
else
lat_min = lat_ec_out(0)
lat_max = lat_ec_out(dimsizes(lat_ec_out)-1)
lon_min = lon_ec_out(0)
lon_max = lon_ec_out(dimsizes(lon_ec_out)-1)
end if
time_zero = (158*365+51*366+31+28+31+5)*24
;================================================;
; albedo
print(" albedo")
data_path_matr = (/ecmwf_path,"/albedo_0001.grib"/)
data_path = str_concat(data_path_matr)
ec_file = addfile(data_path,"r")
albedo = ec_file->AL_GDS4_SFC ; albedo
lat_ec_in = ec_file->g4_lat_1 ; lat
lon_ec_in = ec_file->g4_lon_2 ; lon
time = ec_file->initial_time0_hours ; hours since 1800-01-01 00:00
lat_ec_in!0 = "lat"
lon_ec_in!0 = "lon"
; change time so in **seconds** after UTC 6 April 2009 0000
time = (time - time_zero)*60*60
time@calendar = "gregorian"
time@standard_name = "time" ;
time@units = "seconds since 2009-04-06 00:00:00" ;
albedo!0 = "time"
albedo&time = toint(time)
albedo!1 = "lat"
albedo&lat = lat_ec_in
albedo!2 = "lon"
albedo&lon = lon_ec_in
; reduce area data and temporal interpolation
data_tmp = albedo(time|:,{lat|lat_min:lat_max},{lon|lon_min:lon_max})
delete([/albedo/])
albedo = temp_interp(data_tmp,t_required)
delete([/data_tmp,ec_file,lat_ec_in,lon_ec_in,time/])
;================================================;
; anor
print(" anor - orography AN")
data_path_matr = (/ecmwf_path,"/anor_0001.grib"/)
data_path = str_concat(data_path_matr)
ec_file = addfile(data_path,"r")
anor = ec_file->ANOR_GDS4_SFC ; anor
lat_ec_in = ec_file->g4_lat_1 ; lat
lon_ec_in = ec_file->g4_lon_2 ; lon
time = ec_file->initial_time0_hours ; hours since 1800-01-01 00:00
lat_ec_in!0 = "lat"
lon_ec_in!0 = "lon"
; change time so in **seconds** after UTC 6 April 2009 0000
time = (time - time_zero)*60*60
time@calendar = "gregorian"
time@standard_name = "time" ;
time@units = "seconds since 2009-04-06 00:00:00" ;
anor!0 = "time"
anor&time = toint(time)
anor!1 = "lat"
anor&lat = lat_ec_in
anor!2 = "lon"
anor&lon = lon_ec_in
; reduce area data and temporal interpolation
data_tmp = anor(time|:,{lat|lat_min:lat_max},{lon|lon_min:lon_max})
delete([/anor/])
anor = temp_interp(data_tmp,t_required)
delete([/data_tmp,ec_file,lat_ec_in,lon_ec_in,time/])
;================================================;
; heat_rough
print(" heat_rough")
data_path_matr = (/ecmwf_path,"/heat_rough_log_fc_0001.grib"/)
data_path = str_concat(data_path_matr)
ec_file = addfile(data_path,"r")
heat_rough = ec_file->FLSR_GDS4_SFC ; heat_rough
lat_ec_in = ec_file->g4_lat_1 ; lat
lon_ec_in = ec_file->g4_lon_2 ; lon
time = ec_file->initial_time0_hours ; hours since 1800-01-01 00:00
lat_ec_in!0 = "lat"
lon_ec_in!0 = "lon"
; change time so in **seconds** after UTC 6 April 2009 0000
time = (time - time_zero)*60*60
time@calendar = "gregorian"
time@standard_name = "time"
time@units = "seconds since 2009-04-06 00:00:00"
heat_rough!0 = "time"
heat_rough&time = toint(time)
heat_rough!1 = "lat"
heat_rough&lat = lat_ec_in
heat_rough!2 = "lon"
heat_rough&lon = lon_ec_in
; reduce area data and temporal interpolation
data_tmp = heat_rough(time|:,{lat|lat_min:lat_max},{lon|lon_min:lon_max})
delete([/heat_rough/])
; reading in log of heat rough - raise to exponential
data_tmp2 = exp(data_tmp)
copy_VarCoords(data_tmp,data_tmp2)
heat_rough = temp_interp(data_tmp2,t_required)
copy_VarAtts(data_tmp,heat_rough)
delete([/data_tmp,ec_file,lat_ec_in,lon_ec_in,time/])
;================================================;
; high_veg_cover
print(" high_veg_cover")
data_path_matr = (/ecmwf_path,"/high_veg_cover_0001.grib"/)
data_path = str_concat(data_path_matr)
ec_file = addfile(data_path,"r")
high_veg_cover = ec_file->CVH_GDS4_SFC ; high_veg_cover
lat_ec_in = ec_file->g4_lat_1 ; lat
lon_ec_in = ec_file->g4_lon_2 ; lon
time = ec_file->initial_time0_hours ; hours since 1800-01-01 00:00
lat_ec_in!0 = "lat"
lon_ec_in!0 = "lon"
; change time so in **seconds** after UTC 6 April 2009 0000
time = (time - time_zero)*60*60
time@calendar = "gregorian"
time@standard_name = "time"
time@units = "seconds since 2009-04-06 00:00:00"
high_veg_cover!0 = "time"
high_veg_cover&time = toint(time)
high_veg_cover!1 = "lat"
high_veg_cover&lat = lat_ec_in
high_veg_cover!2 = "lon"
high_veg_cover&lon = lon_ec_in
; reduce area data and temporal interpolation
data_tmp = high_veg_cover(time|:,{lat|lat_min:lat_max},{lon|lon_min:lon_max})
delete([/high_veg_cover/])
high_veg_cover = temp_interp(data_tmp,t_required)
delete([/data_tmp,ec_file,lat_ec_in,lon_ec_in,time/])
;================================================;
; high_veg_type
print(" high_veg_type")
data_path_matr = (/ecmwf_path,"/high_veg_type_0001.grib"/)
data_path = str_concat(data_path_matr)
ec_file = addfile(data_path,"r")
high_veg_type = ec_file->TVH_GDS4_SFC ; high_veg_type
lat_ec_in = ec_file->g4_lat_1 ; lat
lon_ec_in = ec_file->g4_lon_2 ; lon
time = ec_file->initial_time0_hours ; hours since 1800-01-01 00:00
lat_ec_in!0 = "lat"
lon_ec_in!0 = "lon"
; change time so in **seconds** after UTC 6 April 2009 0000
time = (time - time_zero)*60*60
time@calendar = "gregorian"
time@standard_name = "time"
time@units = "seconds since 2009-04-06 00:00:00"
high_veg_type!0 = "time"
high_veg_type&time = toint(time)
high_veg_type!1 = "lat"
high_veg_type&lat = lat_ec_in
high_veg_type!2 = "lon"
high_veg_type&lon = lon_ec_in
; reduce area data and temporal interpolation
data_tmp = high_veg_type(time|:,{lat|lat_min:lat_max},{lon|lon_min:lon_max})
delete([/high_veg_type/])
high_veg_type = temp_interp(data_tmp,t_required)
delete([/data_tmp,ec_file,lat_ec_in,lon_ec_in,time/])
;================================================;
; isor
print(" isor - orography IS")
data_path_matr = (/ecmwf_path,"/isor_0001.grib"/)
data_path = str_concat(data_path_matr)
ec_file = addfile(data_path,"r")
isor = ec_file->ISOR_GDS4_SFC ; isor
lat_ec_in = ec_file->g4_lat_1 ; lat
lon_ec_in = ec_file->g4_lon_2 ; lon
time = ec_file->initial_time0_hours ; hours since 1800-01-01 00:00
lat_ec_in!0 = "lat"
lon_ec_in!0 = "lon"
; change time so in **seconds** after UTC 6 April 2009 0000
time = (time - time_zero)*60*60
time@calendar = "gregorian"
time@standard_name = "time"
time@units = "seconds since 2009-04-06 00:00:00"
isor!0 = "time"
isor&time = toint(time)
isor!1 = "lat"
isor&lat = lat_ec_in
isor!2 = "lon"
isor&lon = lon_ec_in
; reduce area data and temporal interpolation
data_tmp = isor(time|:,{lat|lat_min:lat_max},{lon|lon_min:lon_max})
delete([/isor/])
isor = temp_interp(data_tmp,t_required)
delete([/data_tmp,ec_file,lat_ec_in,lon_ec_in,time/])
;================================================;
; low_veg_cover
print(" low_veg_cover")
data_path_matr = (/ecmwf_path,"/low_veg_cover_0001.grib"/)
data_path = str_concat(data_path_matr)
ec_file = addfile(data_path,"r")
low_veg_cover = ec_file->CVL_GDS4_SFC ; low_veg_cover
lat_ec_in = ec_file->g4_lat_1 ; lat
lon_ec_in = ec_file->g4_lon_2 ; lon
time = ec_file->initial_time0_hours ; hours since 1800-01-01 00:00
lat_ec_in!0 = "lat"
lon_ec_in!0 = "lon"
; change time so in **seconds** after UTC 6 April 2009 0000
time = (time - time_zero)*60*60
time@calendar = "gregorian"
time@standard_name = "time"
time@units = "seconds since 2009-04-06 00:00:00"
low_veg_cover!0 = "time"
low_veg_cover&time = toint(time)
low_veg_cover!1 = "lat"
low_veg_cover&lat = lat_ec_in
low_veg_cover!2 = "lon"
low_veg_cover&lon = lon_ec_in
; reduce area data and temporal interpolation
data_tmp = low_veg_cover(time|:,{lat|lat_min:lat_max},{lon|lon_min:lon_max})
delete([/low_veg_cover/])
low_veg_cover = temp_interp(data_tmp,t_required)
delete([/data_tmp,ec_file,lat_ec_in,lon_ec_in,time/])
;================================================;
; low_veg_type
print(" low_veg_type")
data_path_matr = (/ecmwf_path,"/low_veg_type_0001.grib"/)
data_path = str_concat(data_path_matr)
ec_file = addfile(data_path,"r")
low_veg_type = ec_file->TVL_GDS4_SFC ; low_veg_type
lat_ec_in = ec_file->g4_lat_1 ; lat
lon_ec_in = ec_file->g4_lon_2 ; lon
time = ec_file->initial_time0_hours ; hours since 1800-01-01 00:00
lat_ec_in!0 = "lat"
lon_ec_in!0 = "lon"
; change time so in **seconds** after UTC 6 April 2009 0000
time = (time - time_zero)*60*60
time@calendar = "gregorian"
time@standard_name = "time"
time@units = "seconds since 2009-04-06 00:00:00"
low_veg_type!0 = "time"
low_veg_type&time = toint(time)
low_veg_type!1 = "lat"
low_veg_type&lat = lat_ec_in
low_veg_type!2 = "lon"
low_veg_type&lon = lon_ec_in
; reduce area data and temporal interpolation
data_tmp = low_veg_type(time|:,{lat|lat_min:lat_max},{lon|lon_min:lon_max})
delete([/low_veg_type/])
low_veg_type = temp_interp(data_tmp,t_required)
delete([/data_tmp,ec_file,lat_ec_in,lon_ec_in,time/])
;================================================;
; lsm
print(" lsm")
data_path_matr = (/ecmwf_path,"/lsm_0001.grib"/)
data_path = str_concat(data_path_matr)
ec_file = addfile(data_path,"r")
lsm = ec_file->LSM_GDS4_SFC ; lsm
lat_ec_in = ec_file->g4_lat_1 ; lat
lon_ec_in = ec_file->g4_lon_2 ; lon
time = ec_file->initial_time0_hours ; hours since 1800-01-01 00:00
lat_ec_in!0 = "lat"
lon_ec_in!0 = "lon"
; change time so in **seconds** after UTC 6 April 2009 0000
time = (time - time_zero)*60*60
time@calendar = "gregorian"
time@standard_name = "time"
time@units = "seconds since 2009-04-06 00:00:00"
lsm!0 = "time"
lsm&time = toint(time)
lsm!1 = "lat"
lsm&lat = lat_ec_in
lsm!2 = "lon"
lsm&lon = lon_ec_in
; reduce area data and temporal interpolation
data_tmp = lsm(time|:,{lat|lat_min:lat_max},{lon|lon_min:lon_max})
delete([/lsm/])
lsm = temp_interp(data_tmp,t_required)
delete([/data_tmp,ec_file,lat_ec_in,lon_ec_in,time/])
;================================================;
; mom_rough
print(" mom_rough")
data_path_matr = (/ecmwf_path,"/mom_rough_fc_0001.grib"/)
data_path = str_concat(data_path_matr)
ec_file = addfile(data_path,"r")
mom_rough = ec_file->FSR_GDS4_SFC ; mom_rough
lat_ec_in = ec_file->g4_lat_1 ; lat
lon_ec_in = ec_file->g4_lon_2 ; lon
time = ec_file->initial_time0_hours ; hours since 1800-01-01 00:00
lat_ec_in!0 = "lat"
lon_ec_in!0 = "lon"
; change time so in **seconds** after UTC 6 April 2009 0000
time = (time - time_zero)*60*60
time@calendar = "gregorian"
time@standard_name = "time"
time@units = "seconds since 2009-04-06 00:00:00"
mom_rough!0 = "time"
mom_rough&time = toint(time)
mom_rough!1 = "lat"
mom_rough&lat = lat_ec_in
mom_rough!2 = "lon"
mom_rough&lon = lon_ec_in
; reduce area data and temporal interpolation
data_tmp = mom_rough(time|:,{lat|lat_min:lat_max},{lon|lon_min:lon_max})
delete([/mom_rough/])
mom_rough = temp_interp(data_tmp,t_required)
delete([/data_tmp,ec_file,lat_ec_in,lon_ec_in,time/])
;================================================;
; open_sst
print(" open_sst")
data_path_matr = (/ecmwf_path,"/open_sst_0001.grib"/)
data_path = str_concat(data_path_matr)
ec_file = addfile(data_path,"r")
open_sst = ec_file->SSTK_GDS4_SFC ; open_sst
lat_ec_in = ec_file->g4_lat_1 ; lat
lon_ec_in = ec_file->g4_lon_2 ; lon
time = ec_file->initial_time0_hours ; hours since 1800-01-01 00:00
lat_ec_in!0 = "lat"
lon_ec_in!0 = "lon"
; change time so in **seconds** after UTC 6 April 2009 0000
time = (time - time_zero)*60*60
time@calendar = "gregorian"
time@standard_name = "time"
time@units = "seconds since 2009-04-06 00:00:00"
open_sst!0 = "time"
open_sst&time = toint(time)
open_sst!1 = "lat"
open_sst&lat = lat_ec_in
open_sst!2 = "lon"
open_sst&lon = lon_ec_in
; reduce area data and temporal interpolation
data_tmp = open_sst(time|:,{lat|lat_min:lat_max},{lon|lon_min:lon_max})
delete([/open_sst/])
open_sst = temp_interp(data_tmp,t_required)
delete([/data_tmp,ec_file,lat_ec_in,lon_ec_in,time/])
;================================================;
; sdfor
print(" sdfor - orography filtered SD")
data_path_matr = (/ecmwf_path,"/sdfor_0001.grib"/)
data_path = str_concat(data_path_matr)
ec_file = addfile(data_path,"r")
sdfor = ec_file->SDFOR_GDS4_SFC ; sdfor
lat_ec_in = ec_file->g4_lat_1 ; lat
lon_ec_in = ec_file->g4_lon_2 ; lon
time = ec_file->initial_time0_hours ; hours since 1800-01-01 00:00
lat_ec_in!0 = "lat"
lon_ec_in!0 = "lon"
; change time so in **seconds** after UTC 6 April 2009 0000
time = (time - time_zero)*60*60
time@calendar = "gregorian"
time@standard_name = "time"
time@units = "seconds since 2009-04-06 00:00:00"
sdfor!0 = "time"
sdfor&time = toint(time)
sdfor!1 = "lat"
sdfor&lat = lat_ec_in
sdfor!2 = "lon"
sdfor&lon = lon_ec_in
; reduce area data and temporal interpolation
data_tmp = sdfor(time|:,{lat|lat_min:lat_max},{lon|lon_min:lon_max})
delete([/sdfor/])
sdfor = temp_interp(data_tmp,t_required)
delete([/data_tmp,ec_file,lat_ec_in,lon_ec_in,time/])
;================================================;
; sdor
print(" sdor - orography SD")
data_path_matr = (/ecmwf_path,"/sdor_0001.grib"/)
data_path = str_concat(data_path_matr)
ec_file = addfile(data_path,"r")
sdor = ec_file->SDOR_GDS4_SFC ; sdor
lat_ec_in = ec_file->g4_lat_1 ; lat
lon_ec_in = ec_file->g4_lon_2 ; lon
time = ec_file->initial_time0_hours ; hours since 1800-01-01 00:00
lat_ec_in!0 = "lat"
lon_ec_in!0 = "lon"
; change time so in **seconds** after UTC 6 April 2009 0000
time = (time - time_zero)*60*60
time@calendar = "gregorian"
time@standard_name = "time"
time@units = "seconds since 2009-04-06 00:00:00"
sdor!0 = "time"
sdor&time = toint(time)
sdor!1 = "lat"
sdor&lat = lat_ec_in
sdor!2 = "lon"
sdor&lon = lon_ec_in
; reduce area data and temporal interpolation
data_tmp = sdor(time|:,{lat|lat_min:lat_max},{lon|lon_min:lon_max})
delete([/sdor/])
sdor = temp_interp(data_tmp,t_required)
delete([/data_tmp,ec_file,lat_ec_in,lon_ec_in,time/])
;================================================;
; sea_ice_frct
print(" sea_ice_frct")
data_path_matr = (/ecmwf_path,"/sea_ice_frct_0001.grib"/)
data_path = str_concat(data_path_matr)
ec_file = addfile(data_path,"r")
sea_ice_frct = ec_file->CI_GDS4_SFC ; sea_ice_frct
lat_ec_in = ec_file->g4_lat_1 ; lat
lon_ec_in = ec_file->g4_lon_2 ; lon
time = ec_file->initial_time0_hours ; hours since 1800-01-01 00:00
lat_ec_in!0 = "lat"
lon_ec_in!0 = "lon"
; change time so in **seconds** after UTC 6 April 2009 0000
time = (time - time_zero)*60*60
time@calendar = "gregorian"
time@standard_name = "time"
time@units = "seconds since 2009-04-06 00:00:00"
sea_ice_frct!0 = "time"
sea_ice_frct&time = toint(time)
sea_ice_frct!1 = "lat"
sea_ice_frct&lat = lat_ec_in
sea_ice_frct!2 = "lon"
sea_ice_frct&lon = lon_ec_in
; reduce area data and temporal interpolation
data_tmp = sea_ice_frct(time|:,{lat|lat_min:lat_max},{lon|lon_min:lon_max})
delete([/sea_ice_frct/])
sea_ice_frct = temp_interp(data_tmp,t_required)
delete([/data_tmp,ec_file,lat_ec_in,lon_ec_in,time/])
;================================================;
; slor
print(" slor - orography SL")
data_path_matr = (/ecmwf_path,"/slor_0001.grib"/)
data_path = str_concat(data_path_matr)
ec_file = addfile(data_path,"r")
slor = ec_file->SLOR_GDS4_SFC ; slor
lat_ec_in = ec_file->g4_lat_1 ; lat
lon_ec_in = ec_file->g4_lon_2 ; lon
time = ec_file->initial_time0_hours ; hours since 1800-01-01 00:00
lat_ec_in!0 = "lat"
lon_ec_in!0 = "lon"
; change time so in **seconds** after UTC 6 April 2009 0000
time = (time - time_zero)*60*60
time@calendar = "gregorian"
time@standard_name = "time"
time@units = "seconds since 2009-04-06 00:00:00"
slor!0 = "time"
slor&time = toint(time)
slor!1 = "lat"
slor&lat = lat_ec_in
slor!2 = "lon"
slor&lon = lon_ec_in
; reduce area data and temporal interpolation
data_tmp = slor(time|:,{lat|lat_min:lat_max},{lon|lon_min:lon_max})
delete([/slor/])
slor = temp_interp(data_tmp,t_required)
delete([/data_tmp,ec_file,lat_ec_in,lon_ec_in,time/])
;================================================;
; z_sfc
print(" z_sfc / orog")
data_path_matr = (/ecmwf_path,"/z_sfc_0001.grib"/)
data_path = str_concat(data_path_matr)
ec_file = addfile(data_path,"r")
z_sfc = ec_file->Z_GDS4_SFC ; z_sfc
lat_ec_in = ec_file->g4_lat_1 ; lat
lon_ec_in = ec_file->g4_lon_2 ; lon
time = ec_file->initial_time0_hours ; hours since 1800-01-01 00:00
lat_ec_in!0 = "lat"
lon_ec_in!0 = "lon"
; change time so in **seconds** after UTC 6 April 2009 0000
time = (time - time_zero)*60*60
time@calendar = "gregorian"
time@standard_name = "time"
time@units = "seconds since 2009-04-06 00:00:00"
z_sfc!0 = "time"
z_sfc&time = toint(time)
z_sfc!1 = "lat"
z_sfc&lat = lat_ec_in
z_sfc!2 = "lon"
z_sfc&lon = lon_ec_in
; reduce area data and temporal interpolation
data_tmp = z_sfc(time|:,{lat|lat_min:lat_max},{lon|lon_min:lon_max})
delete([/z_sfc/])
z_sfc = temp_interp(data_tmp,t_required)
; calculate orography from surface geopotential
orog = z_sfc/9.80665
copy_VarCoords(z_sfc,orog)
z_sfc@long_name = "Surface Geopotential"
orog@long_name = "Orographic height"
orog@units = "m"
delete([/data_tmp,ec_file,lat_ec_in,lon_ec_in,time/])
;================================================;
; t_skin
print(" t_skin")
data_path_matr = (/ecmwf_path,"/t_skin_0001.grib"/)
data_path = str_concat(data_path_matr)
ec_file = addfile(data_path,"r")
t_skin = ec_file->SKT_GDS4_SFC ; t_skin
lat_ec_in = ec_file->g4_lat_1 ; lat
lon_ec_in = ec_file->g4_lon_2 ; lon
time = ec_file->initial_time0_hours ; hours since 1800-01-01 00:00
lat_ec_in!0 = "lat"
lon_ec_in!0 = "lon"
; change time so in **seconds** after UTC 6 April 2009 0000
time = (time - time_zero)*60*60
time@calendar = "gregorian"
time@standard_name = "time"
time@units = "seconds since 2009-04-06 00:00:00"
t_skin!0 = "time"
t_skin&time = toint(time)
t_skin!1 = "lat"
t_skin&lat = lat_ec_in
t_skin!2 = "lon"
t_skin&lon = lon_ec_in
; reduce area data and temporal interpolation
data_tmp = t_skin(time|:,{lat|lat_min:lat_max},{lon|lon_min:lon_max})
delete([/t_skin/])
t_skin = temp_interp(data_tmp,t_required)
delete([/data_tmp,ec_file,lat_ec_in,lon_ec_in,time/])
;================================================;
; q_skin
print(" q_skin")
data_path_matr = (/ecmwf_path,"/q_skin_0001.grib"/)
data_path = str_concat(data_path_matr)
ec_file = addfile(data_path,"r")
q_skin = ec_file->SRC_GDS4_SFC ; q_skin
lat_ec_in = ec_file->g4_lat_1 ; lat
lon_ec_in = ec_file->g4_lon_2 ; lon
time = ec_file->initial_time0_hours ; hours since 1800-01-01 00:00
lat_ec_in!0 = "lat"
lon_ec_in!0 = "lon"
; change time so in **seconds** after UTC 6 April 2009 0000
time = (time - time_zero)*60*60
time@calendar = "gregorian"
time@standard_name = "time"
time@units = "seconds since 2009-04-06 00:00:00"
q_skin!0 = "time"
q_skin&time = toint(time)
q_skin!1 = "lat"
q_skin&lat = lat_ec_in
q_skin!2 = "lon"
q_skin&lon = lon_ec_in
; reduce area data and temporal interpolation
q_skin_full = q_skin
data_tmp = q_skin(time|:,{lat|lat_min:lat_max},{lon|lon_min:lon_max})
delete([/q_skin/])
q_skin = temp_interp(data_tmp,t_required)
delete([/data_tmp,ec_file,lat_ec_in,lon_ec_in,time/])
;================================================;
; t_sea_ice
print(" t_sea_ice")
dsize = dimsizes(q_skin_full)
t_sea_ice_tmp = new((/dsize(0),dsize(1),dsize(2),4/),typeof(t_skin))
data_path_matr = (/ecmwf_path,"/t_sea_ice_0001.grib"/)
data_path = str_concat(data_path_matr)
ec_file = addfile(data_path,"r")
t_sea_ice_tmp(:,:,:,0) = ec_file->ISTL1_GDS4_DBLY ; t_sea_ice - layer 1
t_sea_ice_tmp(:,:,:,1) = ec_file->ISTL2_GDS4_DBLY ; t_sea_ice - layer 2
t_sea_ice_tmp(:,:,:,2) = ec_file->ISTL3_GDS4_DBLY ; t_sea_ice - layer 3
t_sea_ice_tmp(:,:,:,3) = ec_file->ISTL4_GDS4_DBLY ; t_sea_ice - layer 4
lat_ec_in = ec_file->g4_lat_1 ; lat
lon_ec_in = ec_file->g4_lon_2 ; lon
time = ec_file->initial_time0_hours ; hours since 1800-01-01 00:00
lat_ec_in!0 = "lat"
lon_ec_in!0 = "lon"
; change time so in **seconds** after UTC 6 April 2009 0000
time = (time - time_zero)*60*60
time@calendar = "gregorian"
time@standard_name = "time"
time@units = "seconds since 2009-04-06 00:00:00"
t_sea_ice_tmp!0 = "time"
t_sea_ice_tmp&time = toint(time)
t_sea_ice_tmp!1 = "lat"
t_sea_ice_tmp&lat = lat_ec_in
t_sea_ice_tmp!2 = "lon"
t_sea_ice_tmp&lon = lon_ec_in
t_sea_ice_tmp!3 = "nlevs"
t_sea_ice_tmp&nlevs = ispan(1,4,1)
t_sea_ice = t_sea_ice_tmp(time | :, nlevs | :, lat | :, lon | :)
; reduce area data and temporal interpolation
data_tmp = t_sea_ice(time|:,nlevs|:,{lat|lat_min:lat_max},{lon|lon_min:lon_max})
delete([/t_sea_ice/])
t_sea_ice = temp_interp(data_tmp,t_required)
t_sea_ice@long_name = "Ice surface temperature layers 1-4" ;
delete([/data_tmp,ec_file,lat_ec_in,lon_ec_in,time/])
delete([/t_sea_ice_tmp/])
;================================================;
; t_soil
print(" t_soil")
dsize = dimsizes(q_skin_full)
delete([/q_skin_full/])
t_soil_tmp = new((/dsize(0),dsize(1),dsize(2),4/),typeof(t_skin))
data_path_matr = (/ecmwf_path,"/t_soil_1_0001.grib"/)
data_path = str_concat(data_path_matr)
ec_file = addfile(data_path,"r")
t_soil_tmp(:,:,:,0) = ec_file->STL1_GDS4_DBLY ; t_soil
lat_ec_in = ec_file->g4_lat_1 ; lat
lon_ec_in = ec_file->g4_lon_2 ; lon
time = ec_file->initial_time0_hours ; hours since 1800-01-01 00:00
delete([/data_path_matr,data_path,ec_file/])
data_path_matr = (/ecmwf_path,"/t_soil_2_0001.grib"/)
data_path = str_concat(data_path_matr)
ec_file = addfile(data_path,"r")
t_soil_tmp(:,:,:,1) = ec_file->STL2_GDS4_DBLY ; t_soil
delete([/data_path_matr,data_path,ec_file/])
data_path_matr = (/ecmwf_path,"/t_soil_3_0001.grib"/)
data_path = str_concat(data_path_matr)
ec_file = addfile(data_path,"r")
t_soil_tmp(:,:,:,2) = ec_file->STL3_GDS4_DBLY ; t_soil
delete([/data_path_matr,data_path,ec_file/])
data_path_matr = (/ecmwf_path,"/t_soil_4_0001.grib"/)
data_path = str_concat(data_path_matr)
ec_file = addfile(data_path,"r")
t_soil_tmp(:,:,:,3) = ec_file->STL4_GDS4_DBLY ; t_soil
delete([/data_path_matr,data_path,ec_file/])
lat_ec_in!0 = "lat"
lon_ec_in!0 = "lon"
; change time so in **seconds** after UTC 6 April 2009 0000
time = (time - time_zero)*60*60
time@calendar = "gregorian"
time@standard_name = "time"
time@units = "seconds since 2009-04-06 00:00:00"
t_soil_tmp!0 = "time"
t_soil_tmp&time = toint(time)
t_soil_tmp!1 = "lat"
t_soil_tmp&lat = lat_ec_in
t_soil_tmp!2 = "lon"
t_soil_tmp&lon = lon_ec_in
t_soil_tmp!3 = "nlevs"
t_soil_tmp&nlevs = ispan(1,4,1)
t_soil = t_soil_tmp(time | :, nlevs | :, lat | :, lon | :)
; reduce area data and temporal interpolation
data_tmp = t_soil(time|:,nlevs|:,{lat|lat_min:lat_max},{lon|lon_min:lon_max})
delete([/t_soil/])
t_soil = temp_interp(data_tmp,t_required)
t_soil@long_name = "Soil temperature layers 1-4" ;
delete([/data_tmp,lat_ec_in,lon_ec_in,time/])
delete([/t_soil_tmp/])
;================================================;
; q_soil
print(" q_soil")
q_soil_tmp = new((/dsize(0),dsize(1),dsize(2),4/),typeof(q_skin))
data_path_matr = (/ecmwf_path,"/q_soil_1_0001.grib"/)
data_path = str_concat(data_path_matr)
ec_file = addfile(data_path,"r")
q_soil_tmp(:,:,:,0) = ec_file->SWVL1_GDS4_DBLY ; q_soil
lat_ec_in = ec_file->g4_lat_1 ; lat
lon_ec_in = ec_file->g4_lon_2 ; lon
time = ec_file->initial_time0_hours ; hours since 1800-01-01 00:00
delete([/data_path_matr,data_path,ec_file/])
data_path_matr = (/ecmwf_path,"/q_soil_2_0001.grib"/)
data_path = str_concat(data_path_matr)
ec_file = addfile(data_path,"r")
q_soil_tmp(:,:,:,1) = ec_file->SWVL2_GDS4_DBLY ; q_soil
delete([/data_path_matr,data_path,ec_file/])
data_path_matr = (/ecmwf_path,"/q_soil_3_0001.grib"/)
data_path = str_concat(data_path_matr)
ec_file = addfile(data_path,"r")
q_soil_tmp(:,:,:,2) = ec_file->SWVL3_GDS4_DBLY ; q_soil
delete([/data_path_matr,data_path,ec_file/])
data_path_matr = (/ecmwf_path,"/q_soil_4_0001.grib"/)
data_path = str_concat(data_path_matr)
ec_file = addfile(data_path,"r")
q_soil_tmp(:,:,:,3) = ec_file->SWVL4_GDS4_DBLY ; q_soil
delete([/data_path_matr,data_path,ec_file/])
lat_ec_in!0 = "lat"
lon_ec_in!0 = "lon"
; change time so in **seconds** after UTC 6 April 2009 0000
time = (time - time_zero)*60*60
time@calendar = "gregorian"
time@standard_name = "time"
time@units = "seconds since 2009-04-06 00:00:00"
q_soil_tmp!0 = "time"
q_soil_tmp&time = toint(time)
q_soil_tmp!1 = "lat"
q_soil_tmp&lat = lat_ec_in
q_soil_tmp!2 = "lon"
q_soil_tmp&lon = lon_ec_in
q_soil_tmp!3 = "nlevs"
q_soil_tmp&nlevs = ispan(1,4,1)
q_soil = q_soil_tmp(time | :, nlevs | :, lat | :, lon | :)
; reduce area data and temporal interpolation
data_tmp = q_soil(time|:,nlevs|:,{lat|lat_min:lat_max},{lon|lon_min:lon_max})
delete([/q_soil/])
q_soil = temp_interp(data_tmp,t_required)
q_soil@long_name = "Volumetric soil water layers 1-4" ;
delete([/data_tmp,lat_ec_in,lon_ec_in,time/])
delete([/q_soil_tmp,dsize/])
return([/ albedo, anor, heat_rough, high_veg_cover, high_veg_type, isor, low_veg_cover, low_veg_type, lsm, mom_rough, open_sst, sdfor, sdor, sea_ice_frct, slor, t_sea_ice, z_sfc, orog, t_skin, q_skin, t_soil, q_soil /])
end
;===================================================================================================
; read in ERAI 3D fields to pad out upper layers of CASCADE data
;
;===============================================================
function read_ecmwf_pad(ecmwf_path:string,ecmwf_var:string,lat_ec_out:float,lon_ec_out:float,\
flag_subset:logical,set_lat_min:float,set_lat_max:float,\
set_lon_min:float,set_lon_max:float,\
t_required:integer)
local ecmwf_path,ecmwf_var,lat_ec_out,lon_ec_out,flag_subset,set_lat_min,set_lat_max,\
set_lon_min,set_lon_max,t_required,\
lat_min,lat_max,lon_min,lon_max,data_path_matr,data_path,\
ec_file,lat_ec_in,lon_ec_in,time,hyam,hybm,data_tmp,\
time_zero,erai_data
begin
;================================================;
; Read in ECMWF file for reference co-ordinates ;
;================================================;
print(" read in ERAi files for padding")
if (flag_subset) then
lat_min = set_lat_min
lat_max = set_lat_max
lon_min = set_lon_min