[RegCNET] Regrid wind (vector variables) with large biases

[LANG WANG]

Dear RegCM Users

Wish this email find you well!

I used the default 'regrid' function to the RegCM output (wind.nc, which is
merged from ua.nc and va.nc), I got wind_lonlat.nc. But when comparing wind.
nc and wind_lonlat.nc, I found large biases between them, especially
the vacomponent. Did I use the correct method to
regrid the wind (vector variables)? If not, could you help me with some
solutions to this problem? Thank you so much for your help in advance!

Here are major steps of the analysis progress:

>../RegCM-4.3.5.6/bin/regrid wind.nc -89.75,89.75,1.5 -179.75,179.75,1.5 bil
  Then I got the output: wind_lonlat.nc
>cdo info wind.nc
   -1 :  Date     Time   Level Gridsize    Miss :     Minimum
Mean     Maximum :ParameterID
     1 : 2009-12-31 00:00:00     850    15087       0 :     -8.9881
12.456      30.786 : -1
     2 : 2009-12-31 00:00:00     850    15087       0 :     -10.104
0.44314      17.616 : -2
>cdo info wind_lonlat.nc
 -1 :     Date     Time   Level Gridsize    Miss :     Minimum
Mean     Maximum :ParameterID
     1 : 2009-12-31 00:00:00     850    28800   27137 :     -8.9192
13.116      30.496 : -1
     2 : 2009-12-31 00:00:00     850    28800   27137 :     -9.1465
0.078703      17.495 : -2

Look forward to your reply!

Best regards!

Lang

-- 
Lang WANG
PhD Candidate
Department of Environment and Geography
Faculty of Science
Macquarie University
Sydney
NSW 2109
Australia

lang.wang at students.mq.edu.au
*http://www.mq.edu.au/* <http://http://www.mq.edu.au/>**

Tel. +61 (0)2 9850 6372
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