[ncl-talk] Wrf 3hrs output to daily outputs

[Raja Sivaranjan]

Dear Madam,

I need to convert wrf 6 hrs outputs to daily ouputs. Is there any ncl code
to convert wrf 6hrs data to daily data which consider Bucket Option. Major
variables required are Max and min Temperature( Tmax, Tmin), Rainfall,
Swdown and Wind Speed.

Below is the description for wrf bucket option

*Buckets in the namelist.input*

The other suggestion is the use of buckets in the &physics section of the
namelist.input file. Let me explain what that is: if you do not use
buckets, then the precipitation field keeps accumulating at each timestep.
This is fine for weather simulations. But if you run WRF for several months
or several years, then you will end up with a large number for the
precipitation. So, let's suppose that you need to add 1 mm of rainfall to a
very large number. Due to rounding errors in computer systems, this 1 mm
may end up not being added at all. This is where the idea of buckets come
to place.

When you use buckets, for example of size 100 mm, every time your bucket is
full, it empties and starts from zero. WRF keeps a count of how many
buckets you have. It also uses a bucket per grid point.

How do you use buckets in your namelist.input file? Well, in the *&physics*
section, you should add these options:

*bucket_mm      =  100,*

*bucket_J          =  1.e9,*

Now, remember that when you finish your simulation and you want to estimate
the precipitation, you will need to multiply the number of buckets you have
by 100 mm. You will need to perform the following calculations, using the
variables WRF has separated when you activated the bucket system:

*  RAINC + 100.*I_RAINC*

*RAINNC + 100.*I_RAINNC*
Need your help

Thanks in advance
Rajasivaranjan
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