To overlay data on cylindrical equidistant projection grid map

From: Jin-Young Kim <ruwiejin_at_nyahnyahspammersnyahnyah>
Date: Tue, 28 Oct 2008 14:02:38 -0600

Greetings.

I have problem to overlay data on cylindrical equidistant projection grid.

When i used following option,
Map looks strange.. Would you look at this one to make correct.?

  lat = afile->g0_lat_0
  lon = afile->g0_lon_1

   ;=============================
   ; create lat and long coordinate variables
   ;============================
     lon!0 = "lon"
     lon_at_long_name = "lon"
     lon_at_units = "degrees-east"
     lon&lon = lon

     lat!0 = "lat"
     lat_at_long_name = "lat"
     lat_at_units = "degrees_north"
     lat&lat = lat

  printVarSummary(lat)

print(max(lat))
print(min(lat))
print(max(lon))
print(min(lon))

;************************************************
  wks=gsn_open_wks("ps",ofim(i))

  rescn = True
  rescnFillOn = True ; turn on color
  rescn_at_cnLinesOn = True ; no contour lines
  rescn_at_gsnSpreadColors = True ; use full color map
  rescn_at_lbLabelAutoStride = True ; every other
label

  rescn_at_tiMainString = "Precipitation (mm) " + titl(i) + "h Fcst.";title
  rescn_at_pmTickMarkDisplayMode = "Always" ; turn on tick
marks

  rescn_at_gsnAddCyclic = False ; regional data, don't add pt
; rescn_at_mpLimitMode = NhlMAXIMALAREA
  rescn_at_mpMinLatF = min(lat)
  rescn_at_mpMinLonF = min(lon)
  rescn_at_mpMaxLatF = max(lat)
  rescn_at_mpMaxLonF = max(lon)

  plot=gsn_csm_contour_map_ce(wks,apcp,rescn)

After run the program..

Variable: lat
Type: float
Total Size: 532 bytes
            133 values
Number of Dimensions: 1
Dimensions and sizes: [lat | 133]
Coordinates:
            lat: [12.436..4.516]
Number Of Attributes: 9
  La1 : 12.436
  Lo1 : -76.428
  La2 : 20.356
  Lo2 : -67.068
  Di : 0.06
  Dj : 0.06
  units : degrees_north
  GridType : Cylindrical Equidistant Projection Grid
  long_name : lat
(0) 12.436
(0) 4.516
(0) -67.068
(0) -76.428

-- 
Ph. D. Student
Jin-Young Kim (jin_at_climate.pknu.ac.kr)
Integrated Climate System Modeling Lab.
Department of Environmental Atmospheric Sciences
Pukyong National University, Busan 608-737, South Korea
Web : http:climate.pknu.ac.kr/~jin
Visiting Scholar
Jin-Young Kim (Jin-Young.Kim_at_noaa.gov)
Global Systems Division
Earth System Research Laboratory
R/GSD7
325 Broadway
Boulder, CO80305-3328
+1-303- 497-4422 (Office)
+1-303- 497-7262 (FAX)


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Received on Tue Oct 28 2008 - 14:02:38 MDT

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