[Wrf-users] Inconsistency in my WRF output:

[Pavel Jurus]

Hello Isima,

the problem with diurnal cycle can be caused by a number of problems
with WRF configuration. One possible explanation could be (especially
seeing your FNL-based nomenclature of the run) the difference between
the time zones - FNL and WRF work with UTC time zone, but your local
weather forecast is most likely in local time zone. That might explain
the time shift in the hours of daily peak temperatures.

Cheers,
Pavel



On Wed, 27 Feb 2013 08:22:10 -0800 (PST)
MORRIS KENOBI ISIMA <kenimor at yahoo.com> wrote:

> Dear Sir/Madam,
> 
> I am having difficulties
> understanding why the results obtained from the WRF time series
> output behaves strangely as compared to what is obtained from the
> local weather forecast of temperature vs. time. Both outputs have
> about same average daily temperature of 300K. However, the WRF output
> seems to behave strangely. For WRF the peak
> temperature occurs within the hours of 6am – 9am. This does not
> follow the diurnal temperature profile of the study area. However,
> the local weather forecast for the same day captures
> this behavior perfectly. I have attached a ms doc and pdf of the
> graphs for both cases. Simulation info: I used global 6 hourly NCEP
> FNL 10x10, and USGS as input data for the simulation. Running
> from 2013-02-26_00:00:00 to 2013-02-27_00:00:00.
> Could anyone advise me
> on the possible mistakes and solutions to my simulation that have led
> to wrong time series output
>  
> Isima