[RegCNET] MPI-GCM data as RegCM input

[moetasim]

Dear Nazrul,

Download the latest update for ECHAM inetrface from:

http://www.ictp.trieste.it/~bixq/EH5OM.tar.gz

Instead of the SST data sent to you, download the SST files for the desired 
period of simulation from:

ftp://clima-
ftp.ictp.trieste.it/pub/d4/EH5OM/SST/SST20C_1_1930010100_1961123118

ftp://clima-
ftp.ictp.trieste.it/pub/d4/EH5OM/SST/SST20C_1_1962010100_1993123118
ftp://clima-
ftp.ictp.trieste.it/pub/d4/EH5OM/SST/SST20C_1_1994010100_2003110600

ftp://clima-
ftp.ictp.trieste.it/pub/d4/EH5OM/SST/SST_A2_1_2001010100_2029123118
ftp://clima-
ftp.ictp.trieste.it/pub/d4/EH5OM/SST/SST_A2_1_2030010100_2061123118
ftp://clima-
ftp.ictp.trieste.it/pub/d4/EH5OM/SST/SST_A2_1_2062010100_2093123118
ftp://clima-
ftp.ictp.trieste.it/pub/d4/EH5OM/SST/SST_A2_1_2094010100_2100123118

You need to link SST, SURFACE and ECHAM data after making SST, SURFACE and 
EH5OM directories. You can edit any one of these files (datalinker.x or 
data_sasia.x) according to your local path for data. 

TerrainS comes in standard RegCM3 release and is meant for simulations with 
Sub-Bats. Otherwise, starting point is Terrain. 

At Terrain step give the follwoing window size:
39.375,120.,-19.6875,60.9375

The name is EH5OM not EH50M so be careful in writing!

At ICBC step, use icbc_EH5OM.x script instead of icbc.x. Here remember that 
the ECHAM SSTs are 06 hourly so if you prepare ICBCs for a large domain and 
long simulation period, it may crash beacuse of SST.RCM file size! Usually, 
files more than 02 GB are not supoorted at 32 bit machines. To avoid this 
problem you may prepare your ICBCs in parts. 

Newly implemented Emanuel scheme is recommended for these runs with 
following parameters setting in regcm.in for SAsia region:
alphae=0.01
damp=0.05

The recommended size of domain for these runs is 
iy=111
jx=120
ds=50.0
clat=21.0
clon=80.0

Domain size MUCH smaller than this one (for SAsia Region) may effect 
negatively on model results due to many reasons. 

NOTE: Anyone else interested in use of ECHAM data with RegCM3 MUST ask Bi 
first for appropriate guidlines. 


Best,
MOet


> Dear Moetasim/Bi and other RegCM users,
> 
> Yesterday I got HD from Mr. Monir Seikh with MPI-GCM and SST data for the 
> durations 1961-1990 and 2039-2069 for A2 scenarios as input to RegCM3. 
RegCM 
> version which interfaced with MPI-GCM is also provided in HD.
> I have some question to use MPI-GCM data:
> 
> In Preproc/Terrain there are Terrain and TerrainS. Which one is to be used?
> in Preproc/DATA there are datalinker.x and data-sasia.x. Both are 
necessary 
> to link data?
> 
> Anyay, I linked data and in domain.param I used DATTYP=EH50M and 
SSTTYP=EH5RF
> 
> ./terrain RUN well and producing DOMAIN.CTL and DOMAIN.INFO
> 
> Problem is in ICBC. Using ./icbc_EH50M.x the ERROR is 
> "ERROR IN OPENING SST.RCM FILE"
> "4810 IN PROGRAM ICBC"
> 
> In this situation, what can we do to run RegCM3?
> 
> Thanks in advance.
> 
> Dr. Nazrul Islam
> Associate Professor
> Department of Physics
> Bangladesh University of Engineering and Technology
> Dhaka-1000, Bangladesh
> 
> Phone: 880 2 966 5650 (PABX)
> FAX: 880 2 861 3026, 880 2 861 3046
>