[ncl-talk] Wrong values getting on contour plot

Arathy RP arathyrparathy at gmail.com
Wed Jun 3 00:26:54 MDT 2020


Hi,
I am arz student of MSc finally year . As a part of my project work , i am
working with cyclone contour plotting.I am dealing with cyclone phailin and
i want to get minimum value contour plot for mean sea level pressure of
cyclone.Actually there is no error showing even though i am getting a wrong
value. I can't find what wrong with this .can you please help me to clarify
it.
I am dealing with an intensified cyclone plot but not getting a result as
expected. Please help me.
I hereby attaching the data and ncl script used.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.ucar.edu/pipermail/ncl-talk/attachments/20200603/c76ac830/attachment.html>
-------------- next part --------------
 Copyright (C) 1995-2017 - All Rights Reserved
 University Corporation for Atmospheric Research
 NCAR Command Language Version 6.4.0
 The use of this software is governed by a License Agreement.
 See http://www.ncl.ucar.edu/ for more details.

Variable: f
Type: file
filename:	Phailin_surface
path:	Phailin_surface.grib
   file global attributes:
   dimensions:
      initial_time0_hours = 48
      g0_lat_1 = 241
      g0_lon_2 = 480
   variables:
      float SSTK_GDS0_SFC ( initial_time0_hours, g0_lat_1, g0_lon_2 )
         center :	European Center for Medium-Range Weather Forecasts (RSMC)
         long_name :	Sea surface temperature
         units :	K
         _FillValue :	1e+20
         level_indicator :	1
         gds_grid_type :	0
         parameter_table_version :	128
         parameter_number :	34
         forecast_time :	0
         forecast_time_units :	hours

      float SP_GDS0_SFC ( initial_time0_hours, g0_lat_1, g0_lon_2 )
         center :	European Center for Medium-Range Weather Forecasts (RSMC)
         long_name :	Surface pressure
         units :	Pa
         _FillValue :	1e+20
         level_indicator :	1
         gds_grid_type :	0
         parameter_table_version :	128
         parameter_number :	134
         forecast_time :	0
         forecast_time_units :	hours

      float TCW_GDS0_SFC ( initial_time0_hours, g0_lat_1, g0_lon_2 )
         center :	European Center for Medium-Range Weather Forecasts (RSMC)
         long_name :	Total column water
         units :	kg m**-2
         _FillValue :	1e+20
         level_indicator :	1
         gds_grid_type :	0
         parameter_table_version :	128
         parameter_number :	136
         forecast_time :	0
         forecast_time_units :	hours

      float TCWV_GDS0_SFC ( initial_time0_hours, g0_lat_1, g0_lon_2 )
         center :	European Center for Medium-Range Weather Forecasts (RSMC)
         long_name :	Total column water vapour
         units :	kg m**-2
         _FillValue :	1e+20
         level_indicator :	1
         gds_grid_type :	0
         parameter_table_version :	128
         parameter_number :	137
         forecast_time :	0
         forecast_time_units :	hours

      float MSL_GDS0_SFC ( initial_time0_hours, g0_lat_1, g0_lon_2 )
         center :	European Center for Medium-Range Weather Forecasts (RSMC)
         long_name :	Mean sea level pressure
         units :	Pa
         _FillValue :	1e+20
         level_indicator :	1
         gds_grid_type :	0
         parameter_table_version :	128
         parameter_number :	151
         forecast_time :	0
         forecast_time_units :	hours

      float 10U_GDS0_SFC ( initial_time0_hours, g0_lat_1, g0_lon_2 )
         center :	European Center for Medium-Range Weather Forecasts (RSMC)
         long_name :	10 metre U wind component
         units :	m s**-1
         _FillValue :	1e+20
         level_indicator :	1
         gds_grid_type :	0
         parameter_table_version :	128
         parameter_number :	165
         forecast_time :	0
         forecast_time_units :	hours

      float 10V_GDS0_SFC ( initial_time0_hours, g0_lat_1, g0_lon_2 )
         center :	European Center for Medium-Range Weather Forecasts (RSMC)
         long_name :	10 metre V wind component
         units :	m s**-1
         _FillValue :	1e+20
         level_indicator :	1
         gds_grid_type :	0
         parameter_table_version :	128
         parameter_number :	166
         forecast_time :	0
         forecast_time_units :	hours

      float 2T_GDS0_SFC ( initial_time0_hours, g0_lat_1, g0_lon_2 )
         center :	European Center for Medium-Range Weather Forecasts (RSMC)
         long_name :	2 metre temperature
         units :	K
         _FillValue :	1e+20
         level_indicator :	1
         gds_grid_type :	0
         parameter_table_version :	128
         parameter_number :	167
         forecast_time :	0
         forecast_time_units :	hours

      float 2D_GDS0_SFC ( initial_time0_hours, g0_lat_1, g0_lon_2 )
         center :	European Center for Medium-Range Weather Forecasts (RSMC)
         long_name :	2 metre dewpoint temperature
         units :	K
         _FillValue :	1e+20
         level_indicator :	1
         gds_grid_type :	0
         parameter_table_version :	128
         parameter_number :	168
         forecast_time :	0
         forecast_time_units :	hours

      double initial_time0_hours ( initial_time0_hours )
         long_name :	initial time
         units :	hours since 1800-01-01 00:00

      double initial_time0_encoded ( initial_time0_hours )
         long_name :	initial time encoded as double
         units :	yyyymmddhh.hh_frac

      float g0_lat_1 ( g0_lat_1 )
         long_name :	latitude
         GridType :	Cylindrical Equidistant Projection Grid
         units :	degrees_north
         Dj :	0.75
         Di :	0.75
         Lo2 :	359.25
         La2 :	-90
         Lo1 :	 0
         La1 :	90

      float g0_lon_2 ( g0_lon_2 )
         long_name :	longitude
         GridType :	Cylindrical Equidistant Projection Grid
         units :	degrees_east
         Dj :	0.75
         Di :	0.75
         Lo2 :	359.25
         La2 :	-90
         Lo1 :	 0
         La1 :	90

      string initial_time0 ( initial_time0_hours )
         long_name :	Initial time of first record
         units :	mm/dd/yyyy (hh:mm)

 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: sufcode.ncl
Type: application/octet-stream
Size: 638 bytes
Desc: not available
URL: <http://mailman.ucar.edu/pipermail/ncl-talk/attachments/20200603/c76ac830/attachment.obj>


More information about the ncl-talk mailing list