Subject: Re: using sea ice concentration as forcing
From: Peter Paul Smolka (smolka@uni-muenster.de)
Date: Wed Nov 28 2001 - 12:48:07 MST
On Tue, 27 Nov 2001, Qiaozhen Mu wrote:
> Date: Tue, 27 Nov 2001 18:30:58 -0600 (CST)
> From: Qiaozhen Mu <qiaozhen@utig.ig.utexas.edu>
> To: ccm-users@UCAR.EDU
> Subject: using sea ice concentration as forcing
>
> Dear CCM users,
>
> Now I want to do some simulations with CCM3.10, using sea ice
> concentration as input data, which means I don't want the model to calculate sea
> ice, but let it run under the force of sea ice. Now the question is how I can
> input the sea ice file? Is there such an option for this in the namelist, or
> should I modify the model souce codes? Thanks.
Dear Qiaozhen,
Sourcecode-Modification: Not necessary.
Possible ways to do so:
1) Create for yourself for each of the 128x64 data points the status
(land, ocean, sea ice).
2) Transfer the time-invariant boundary dataset to ascii.
3) Locate the Oro= .... AND other variables.
4) Exchange the data with YOUR values.
5) Transfer the file back to netCDF etc. (ncgen).
6) Take the time variant boundary dataset (if I remember on the
spot correctly): Apply the same Ascii procedure.
Set at the appropriate data-points the temperature to -1.8.
Transfer the file back.
The correct formats etc. are in the manual. Check ALL variables
to which this might apply; the scheme is for all the same.
For editing such large files:
Take the THE (The Hessling Editor) for the various Unixes and other
operating systems or the KEDIT (www.kedit.com). The first is free.
Both are a clone of the XEDIT (VM/CMS, TSO).
Alternatively you may write a short own program that inserts the NEW
values (the new orography) into the "old" orography.
>
>
> Best regards,
> Qiaozhen
Best regards, Peter
**********************************************************************
Dr. Peter P. Smolka
University Muenster
Geological Institute
Corrensstr. 24
D-48149 Muenster
Tel.: +49/251/833-3989 +49/2533/4401
Fax: +49/251/833-3989 +49/2533/4401
E-Mail: smolka@uni-muenster.de
E-Mail: PSmolka@T-Online.de
**********************************************************************
This archive was generated by hypermail 2b27 : Tue Jan 22 2002 - 11:16:28 MST