[ncl-talk] WRF Cross-section Plot - Terrain Depiction and Lowest Level Data Contours

Scott Capps scapps at atmosdatasolutions.com
Thu Jan 18 15:04:27 MST 2018


Greetings,

I have some questions about the cross-section plots from WRF output.  I
basically started from the example scripts at:
http://www2.mmm.ucar.edu/wrf/OnLineTutorial/Graphics/NCL/Examples/CROSS_SECTION/wrf_CrossSection_smooth4.htm

The whitespace along the terrain height is much too large and the terrain
is too coarse (this is a 667m resolution WRF run) or the lowest level
atmospheric data is not being contoured correctly.  The cross-section
plotting routine in GRaDs seems to show true the resolution of terrain and
terrain following data.  Is there a way to improve this in NCL?

I have attached some code (cross_sxn_plot_test.ncl and modified
WRFUserARW.ncl) and have ftp'd an example wrfout file to the incoming
directory as:  wrfout_d05_2017-10-09_00:00:00.nc


NCL v6.3.0
http://www2.mmm.ucar.edu/wrf/OnLineTutorial/Graphics/NCL/Examples/CROSS_SECTION/wrf_CrossSection_smooth4.htm

-- 
*Scott Capps*
Principal
Atmospheric Data Solutions <http://www.atmosphericdatasolutions.com>
scapps at atmosdatasolutions.com
cell: (949) 910-4385
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