Hello,
I am wondering how to set dimension information for a seconadry variable
in Lambert Conformal Native Grid . My program is like this:
......
gridx_221 = 277
gridy_221 = 349
diri="/remote/beautemps/raid1/users/mjosman/NARR/NC/"
f=addfile(diri+"narrmon-a_221_20031001.nc","r")
LAT2d = f->gridlat_221
LON2d = f->gridlon_221
lon2d=LON2d(gridy_221|:,gridx_221|:)
lat2d=LAT2d(gridy_221|:,gridx_221|:)
P=f->PRMSL_221_MSL_113
p = P(gridy_221|:,gridx_221|:)
delete(P)
Q=f->PRATE_221_SFC_113
q = Q(gridy_221|:,gridx_221|:)
delete(Q)
ccr = escorc(p(50,100),q) ;***1-pt correlation***
Now, if I want to plot "ccr", how should I set the lat and lon information
so that it can be plotted properly. I tried something like this, but it
failed:
ccr!0="lat"
ccr@lat=lat2d
ccr!1="lon"
ccr@lon=lon2d
I aslo have these settings before plotting:
res@mpLimitMode = "Corners" ; choose range of map
res@mpLeftCornerLatF = lat2d@corners(0)
res@mpLeftCornerLonF = lon2d@corners(0)
res@mpRightCornerLatF = lat2d@corners(2)
res@mpRightCornerLonF = lon2d@corners(2)
res@mpProjection = "LambertConformal"
res@mpLambertParallel1F = lat2d@Latin1 ; ncl adds from grib file
res@mpLambertParallel2F = lat2d@Latin2 ; ncl adds from grib file
res@mpLambertMeridianF = lat2d@Lov ; ncl adds from grib file
res@pmTickMarkDisplayMode = "Always"
But when I run it, the program complains there's no lat/lon information for
plotting. And there are also warning messages like:
warning:mpProjection is not a valid resource in slpMA_prcp_NARR_contour at
this time
warning:mpLimitMode is not a valid resource in slpMA_prcp_NARR_contour at
this time
warning:mpLeftCornerLonF is not a valid resource in slpMA_prcp_NARR_contour
at this time
warning:mpRightCornerLonF is not a valid resource in slpMA_prcp_NARR_contour
at this time
warning:mpLeftCornerLatF is not a valid resource in slpMA_prcp_NARR_contour
at this time
warning:mpRightCornerLatF is not a valid resource in slpMA_prcp_NARR_contour
at this time
warning:mpLambertMeridianF is not a valid resource in
slpMA_prcp_NARR_contour at this time
warning:mpLambertParallel1F is not a valid resource in
slpMA_prcp_NARR_contour at this time
warning:mpLambertParallel2F is not a valid resource in
slpMA_prcp_NARR_contour at this time
By the way, the information of my data file is following:
~>ncdump -h narrmon-a_221_20031001.nc
netcdf narrmon-a_221_20031001 {
dimensions:
gridx_221 = 277 ;
gridy_221 = 349 ;
variables:
float gridlon_221(gridx_221, gridy_221) ;
gridlon_221:corners = -145.5f, -68.320045f, -2.5698934f,
148.64182f ;
gridlon_221:GridType = "Lambert Conformal Secant or Tangent,
Conical or bipolar" ;
gridlon_221:units = "degrees_east" ;
gridlon_221:Latin2 = 50.f ;
gridlon_221:Latin1 = 50.f ;
gridlon_221:Dy = 32463.f ;
gridlon_221:Dx = 32463.f ;
gridlon_221:Lov = -107.f ;
gridlon_221:Lo1 = -145.5f ;
gridlon_221:La1 = 1.f ;
float gridlat_221(gridx_221, gridy_221) ;
gridlat_221:corners = 1.0000008f, 0.89794505f, 46.354397f,
46.634327f ;
gridlat_221:GridType = "Lambert Conformal Secant or Tangent,
Conical or bipolar" ;
gridlat_221:units = "degrees_north" ;
gridlat_221:Latin2 = 50.f ;
gridlat_221:Latin1 = 50.f ;
gridlat_221:Dy = 32463.f ;
gridlat_221:Dx = 32463.f ;
gridlat_221:Lov = -107.f ;
gridlat_221:Lo1 = -145.5f ;
gridlat_221:La1 = 1.f ;
float PRATE_221_SFC_113(gridx_221, gridy_221) ;
PRATE_221_SFC_113:sub_center = "The North American Regional
Reanalysis (NARR) Project" ;
PRATE_221_SFC_113:center = "US National Weather Service -
NCEP (WMC)" ;
PRATE_221_SFC_113:long_name = "Precipitation rate" ;
PRATE_221_SFC_113:units = "kg/m^2/s" ;
PRATE_221_SFC_113:_FillValue = -999.f ;
PRATE_221_SFC_113:coordinates = "gridlat_221 gridlon_221" ;
PRATE_221_SFC_113:level_indicator = 1 ;
PRATE_221_SFC_113:grid_number = 221 ;
PRATE_221_SFC_113:parameter_number = 59 ;
PRATE_221_SFC_113:model = "North American Regional
Reanalysis (NARR)" ;
PRATE_221_SFC_113:forecast_time = 0 ;
PRATE_221_SFC_113:initial_time = "10/01/2003 (00:00)" ;
float PRMSL_221_MSL_113(gridx_221, gridy_221) ;
PRMSL_221_MSL_113:sub_center = "The North American Regional
Reanalysis (NARR) Project" ;
PRMSL_221_MSL_113:center = "US National Weather Service -
NCEP (WMC)" ;
PRMSL_221_MSL_113:long_name = "Pressure reduced to MSL" ;
PRMSL_221_MSL_113:units = "Pa" ;
PRMSL_221_MSL_113:_FillValue = -999.f ;
PRMSL_221_MSL_113:coordinates = "gridlat_221 gridlon_221" ;
PRMSL_221_MSL_113:level_indicator = 102 ;
PRMSL_221_MSL_113:grid_number = 221 ;
PRMSL_221_MSL_113:parameter_number = 2 ;
PRMSL_221_MSL_113:model = "North American Regional
Reanalysis (NARR)" ;
PRMSL_221_MSL_113:forecast_time = 0 ;
PRMSL_221_MSL_113:initial_time = "10/01/2003 (00:00)" ;
}
Thank you.
Regards,
Muhtarjan Osman
ASGG
LAWR
UC Davis
_______________________________________________
ncl-talk mailing list
ncl-talk@ucar.edu
http://mailman.ucar.edu/mailman/listinfo/ncl-talk
This archive was generated by hypermail 2b29 : Thu Jul 28 2005 - 15:38:55 MDT