Dear Prof. Raymont Aritt,
Precipitation isn't one of the parameter of six parameter which are need to run RegCM. That's why you can't do this. But you can dowload ERAINT precipitation file which your desire domain, time step and resolution (orjinally 0.72 but serve as 0.75 degree and you can fix your resolution by interpolation) as netcdf or grib type at this adress

http://data-portal.ecmwf.int/data/d/interim_full_daily/

with my best wishes




     

request1

 
  

Estimated number of fields: 31

retrieve,
date=2010-01-01/2010-01-02/2010-01-03/2010-01-04/2010-01-05/2010-01-06/2010-01-07/2010-01-08/2010-01-09/2010-01-10/2010-01-11/2010-01-12/2010-01-13/2010-01-14/2010-01-15/2010-01-16/2010-01-17/2010-01-18/2010-01-19/2010-01-20/2010-01-21/2010-01-22/2010-01-23/2010-01-24/2010-01-25/2010-01-26/2010-01-27/2010-01-28/2010-01-29/2010-01-30/2010-01-31,
time=00:00:00,
dataset=interim_full_daily,
stream=oper,
step=12,
levtype=sfc,
type=fc,
class=ei,
param=228.128




On 05/01/2012 11:44 PM, Raymond Arritt wrote:
Is it possible to obtain ERA-Interim precipitation data corresponding to the initial/boundary data that we use for RegCM?

The RegCM4 global data page at http://users.ictp.it/~pubregcm/RegCM4/globedat.htm contains links to atmospheric fields and SST for ERA-Interim, but it does not include precipitation. I'm working on an analysis for which it would be helpful to have the ERA-Interim precipitation at the same resolution as the driving fields. I know there are other precipitation data sets such as CRU but for this purpose I specifically need the ERA-Interim precipitation.

It would be nice to have other surface weather elements (such as temperature) from ERA-Interim but precipitation is most important for my present application.

Thanks
Ray Arritt


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-- 
Dr. Burak SEN 
Turkish State Meteorological Service
Department of Weather Forecasting
Numerical Weather Prediction Division 
 06120 Kalaba/ANKARA/TURKEY
Tel : 00 90 312 302 26 18
Fax : 00 90 312 359 34 30
email: bsen@dmi.gov.tr
*******************************************
Dr. Burak SEN 
Devlet Meteoroloji Isleri Genel Müdürlügü
Hava Tahminleri Dairesi Baskanligi   
Sayisal Hava Tahmini Sube Müdürlügü 
06120 Kalaba ANKARA/TURKIYE
Tel : 00 90 312 302 26 18
Fax : 00 90 312 359 34 30
email: bsen@dmi.gov.tr