about CV3.dat

Issues with running 3DVAR.

about CV3.dat

Postby dd05 » Tue Dec 29, 2009 10:55 pm

about CV3.dat,I only know"The error variance is estimated in grid space by what has become known as the NMC method (Parrish and Derber 1992) . The statistics are estimated with the differences of 24 and 48-hour GFS forecasts with T170 resolution valid at the same time for 357 cases distributed over a period of one year."
How can i know the different between the cv3 and the error variance which is estimated use my model data by NMC.
give me some help,thanks in advance!
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Re: about CV3.dat

Postby hnlim » Fri Feb 18, 2011 3:21 pm


Maybe u can run a single obs test to see the difference.

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