[gradsusr] draw shaded color in whole area from station data

[Chinh ta huu]

Hi,

- If we use cress man, it is required historical observed data for
correction, Do you have other way to do that, please recommend me

Thank you very much
Chinh

-- 
(Mr.) Ta Huu Chinh
National, Weather Forecasting Center, Ha Noi, Viet Nam.
No: 4th, Dang Thai Than, Hoan Kiem, Ha Noi
Tel: 84-903-298-856
Office: 84-43-824-4917
Email: chinhth2010 at gmail.com
Website: http://vn.myblog.yahoo.com/chinhth2005/
Website: http://bestknowledge-chinhth.blogspot.com/
Website: http://anhcuoidep.vn
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