[RegCNET] Soil moisture and Soil temperature initialization in RegCM4

[Graziano Giuliani]

On 08/02/2014 11:37 AM, Suman Maity wrote:
> Dear all
> 
> This is Suman Maity from IIT Kharagpur, India. My question is when we
> are running the model regcm we are not putting any dataset of soil
> moisture and soil temperature. How the model getting to initialize the
> land surface model? Is it calculating from any parameter? if yes then
> what parameters?
[...]

Initialization for temperature is taken from global dataset, i.e. we
start with global atmospheric model air temperature extrapolated to the
surface.

For moisture we have look up tables for soil category:
mod_bats_param.f90 is where you want to look, variable slmo, iexsol and
xmopor

volumetric_moisture = xmopor(iexsol) * slmo

Both CLM version we have use the BATS look up table to initialize soil
moisture at model start. Obviously a measured dataset would be a better
option...

Graziano.

-- 
Graziano Giuliani - Earth System Physics Section
The Abdus Salam International Centre for Theoretical Physics
Strada Costiera 11 - I - 34151 Trieste Italy