Scheduled Downtime
On Tuesday 24 October 2023 @ 5pm MT the forums will be in read only mode in preparation for the downtime. On Wednesday 25 October 2023 @ 5am MT, this website will be down for maintenance and expected to return online later in the morning.
Normal Operations
The forums are back online with normal operations. If you notice any issues or errors related to the forums, please reach out to help@ucar.edu

Slope value confirmation from Cosby Table 5 for Soil Moisture calculation

Status
Not open for further replies.
A

AquaTech_007

Tanzeel Hamza
New Member
Hi,

I would like to clear a doubt. I was calculating the SM with CLM5 model and for a reference I have checked the calculation method of CLM. I have found a difference in the value of the Slope for the parameter 'saturate moisture'. The value in the reference research article is -0.126 while in the CLM source code its -0.00126. And the rest of the values for the other parameters are same.

I have tried to run the simulation with the reference research article value but it gave me an error. I have attached the screenshot with highlighted values of both reference and source code value respectively. Looking forward to the reply, thanks
 

Attachments

  • Table 5_Cosby_Clapp.png
    Table 5_Cosby_Clapp.png
    63.2 KB · Views: 7
  • CLM_Src_Code_Cosby_Table5.png
    CLM_Src_Code_Cosby_Table5.png
    86 KB · Views: 7
O

oleson

Keith Oleson
CSEG and Liaisons
Staff member
The Cosby paper gives the soil saturated water content in percent so you need to divide the values in the table by 100. Note that the intercept is given as 48.9. Divided by 100, this agrees with CLM value.
 
Status
Not open for further replies.
Top