[RegCNET] Questions about CCSM3 results as RegCM input

[BI XUNQIANG]

Dear Dennis Shea:

Thank you for the response !

I am sorry that I told a wrong information for the time of downloading ESG
datasets, actually it's less than 10 minutes for most GCM (I took several 
hours because of downloading the monthly Tas of all GCMs').

As for the 6 hourly 3D fields, I checked yesterday and found that there is 
none of 6 hourly datasets at LLNL ftp address. There are daily 3D fields, 
as well as some 3 hourly surface fields at the ESG FTP address, but 
it's not enough to be used as RegCM3 IC&LBC (as Gil told us).

You are right, for the window size datasets, I mean special region, like
for Europe, it's enough if we just take [50W, 90E; 0, 80N] window 
datasets.

There are quite some RegCM3 users interested in using CCSM3 IPCC AR4 
fields for downscaling, is there a place for them have those datasets
(except the NCAR Mass Store) ?

I try to estimate the size of required CCSM3 IPCC AR4 here, in case
NCAR CGD people could kindly consider the possibility for putting them
at one FTP server.

     NCAR CCSM 3D fields size is about 256*128*26*2=1703936,

     We need U, V, T, Q, and Z3, so is 1703936*5   =8519680,

     So one year data size would be    8519680*1460=12438732800=12 Gb

     30 years would be about 360 Gb (for global data).

Thank your and best regards,
Xunqiang Bi

On Fri, 21 Oct 2005, Dennis Shea wrote:

> Hello,
>
> Concerning the ESG [Earth Systems Grid] comments.
> I passed the email to esg-support. The response:
>
> ---
> The ESG support team is more than willing to answer user
> inquiries and facilitate data access.  Please post
> your questions to the email address below.
> Thank You
> ESG Support esg-support at ucar.edu
> ---
>
> Some questions posed to me off-line:
>
> What exactly do they mean by window size datasets?
> Do they mean a subset of the data for a specific
> range of coordinates ?
>
> They say it took several hours to download one field.
> This can be true if the dataset was on the Mass Storage
> System since it may take time to retrieve the files it they
> are not online.
>
> Could they specify which file(s) they experienced delays?
>
> Otherwise the only possibility is that they have a really slow
> internet connection ...
>