[Wrf-users] Query about analysis nudging and observation nudging

Mon Jul 29 08:42:34 MDT 2013

Hi all,

I have a question about nudging.
I cannot use observation nudging for precipitation right? because its only
applicable for state variables..

Question is,Can analysis nudging (grid nudging) be used to nudge
precipitation?
I have this paper :
http://www.hindawi.com/isrn/meteorology/2012/523942/

A Comparative Study on Performance of Analysis Nudging and 3DVAR in
Simulation of a Heavy Rainfall Event Using WRF Modeling System
Ashish Routray <http://www.hindawi.com/32491524/>,1,2 Krishna K.
Osuri<http://www.hindawi.com/73614257/>
,3 and Makarand A. Kulkarni <http://www.hindawi.com/21250301/>4

Does this mean i have to include my rainfall data in the little_r format
and still run it in OBSGRID?

Thanks for any help
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