Dear Xunqiang Bi,

I have CCSM data for Asian domain. Other than the changes you mentioned  whether data sets of CCSM need to be modified because I believe CCSM uses Gaussian grid.

Similarly in the case of HadCM3 the data sets are prepared to run under UK Met Office PRECIS regional model. Is there any modification required in the data as it uses rotated lat-lon. 

Or other words in which DATTYP I have to set in domain.param. 

On Mon, Mar 29, 2010 at 1:18 AM, bixq <bixq@ictp.it> wrote:

Step I, ICBC.f  (under RegCM/PreProc/ICBC)

 in ICBC.f, find the SUBROUTINE INITDATE, set all 12 month to 30 days

NDAY = 30

Step II,  INITDATE.F (under RegCM/Main)

 do the same as above.

Step III, solar1.F (under RegCM/Main)
 find dayspy, change it to 360 exactly (from original 365.24), like

 Change
     dayspy = 365.24
 To
     dayspy = 360.

Step IV, tgrund.F, (under RegCM/Main), probably this code doesn't matter.

 Change
     xnua = xnu/365.

 to
     xnua = xnu/360.

Step V, if you are GrADS user, if you like, you need change all the subroutines related to writing out GrADS CTL files.


I guess that you are using HadCM3 output, right.

For the user use CCSM data (CCSM use 365 days, no leap year), he/she
also have to do the similar modifications.

Regards,
Xunqiang Bi


On Sat, 27 Mar 2010, u.utku.turuncoglu@be.itu.edu.tr wrote:

Hi,

I try to setup a RegCM3 run that uses HadCM output as an initial and
boundary condition. As you know, the year is defined as 360 day in HadCM
model and i think that RegCM main code must be modified for this case. I
do following modifications,

1 - update dayspy value to 360. in solar1.F.

2 - comment or delete lines between 24 and 34. I also added  NDAY=30 after
these lines.

I just want to ask that are these modifications correct? Do i need any
additional steps?

Best regards,

--ufuk


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 Dr. Xunqiang Bi         email:bixq@ictp.it
 Earth System Physics Group
 The Abdus Salam ICTP
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With regards

Dr.R.Jagannathan
Dean (Agriculture),
Tamil Nadu Agricultural University,
Vanavarayar Institute of Agriculture,
NIA Educational Institutions,
Pollachi - 642 003 India

PHONE:  Mob: +91 94438 89891