[gradsusr] diurnal average
robock at envsci.rutgers.edu
Tue Mar 8 08:37:24 EST 2011
ERA Int is not data, but a model product. Reanalysis is notoriously bad
at reproducing surface observations, as the surface values are the
result of a model calculation and do not assimilate surface observations
directly. Furthermore, data every 6 hours cannot resolve the diurnal
cycle. If you insist on using ERA Int, get the hourly values from them.
Alan Robock, Professor II (Distinguished Professor)
Editor, Reviews of Geophysics
Director, Meteorology Undergraduate Program
Associate Director, Center for Environmental Prediction
Department of Environmental Sciences Phone: +1-732-932-9800 x6222
Rutgers University Fax: +1-732-932-8644
14 College Farm Road E-mail: robock at envsci.rutgers.edu
New Brunswick, NJ 08901-8551 USA http://envsci.rutgers.edu/~robock
On 3/8/2011 8:33 AM, Mubashar Dogar wrote:
> Dear gradusers,
> I am interested to see the diurnal averages of surface temperature
> over saudi arabia. Actually I have 22 years 'ERA Int' data having 4
> time steps in each day (6 hourly). I would like to calculate diurnal
> mean cycle such that I left with only 4 points to see on the graph.
> How to check it in grads.
> gradsusr mailing list
> gradsusr at gradsusr.org
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