Dear All.

May i kindly ask about the CFL Violation error. I am running for Southern Africa Region using RegCM-4.0_clm. The simmulation completed successfully for one month, but failed for 7 months with the CFL Violation error. My regcm.in looks as follows:

&dimparam

iy = 132,

jx = 128,

kz = 18,

nsg = 1,

&geoparam

iproj = 'NORMER',

ds = 50.0,

ptop = 5.0,

clat = -15.00,

clon = 30.00,

! plat = 30.00,

! plon = 115.00,

! truelatl = 30.0,

! truelath = 60,

&timeparam

radfrq = 30.,

abemh = 18.,

abatm = 600.,

dt = 150.,

ibdyfrq = 6,

I also run the model for Africa, which was successful for 1990 and 1991, but 1992, 1993 and 1995 gave me the error, CFL Violatio. The regcm.in was:

&dimparam

iy = 180,

jx = 184,

kz = 18,

nsg = 1,

&geoparam

iproj = 'NORMER',

ds = 50.0,

ptop = 5.0,

clat = 0.00,

clon = 18.00,

The timeparam stanza was the same for the both domains. Upto this far, i have not yet got the solutions to the previously posted problems regarding the same error. May anyone help.

Kind Regards,

Letuma

Nanjing University of Information Science and Technology(NUIST -南京信息工程大学)
College of International Education （国际教育学院）
219 Ning Liu Road, Nanjing, Jiangsu, 210044, P.R. China （中国南京市宁六路219号）
Cell No（手机）. (+86) 15151804025/ 14751604145

QQ: 1247219553