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

Water Table Depth getting stuck at 3.8m

Status
Not open for further replies.
H

harshanurag

New Member
Hello,

I am running CLM4.5 with custom atmospheric forcing and custom resolution (25km). I am running into this problem where for some of the gridcells the Water Table Depth (ZWT) gets stuck at 3.8m (basically the last layer in the soil profile). This is also accompanied by an increase in negative groundwater recharge. The figures attached below illustrates this case:

ZWT

zwt.png

QCHARGE

qc.png


Is this a potential bug in the hydrology code of CLM? Or any other reasons why this might be happening?

Thanks
Harsh
 
O

oleson

Keith Oleson
CSEG and Liaisons
Staff member
I'm not aware of any bugs that would affect water table depth in CLM4.5.
The released simulations we have done with CLM4.5 seem to show a smooth seasonal cycle in ZWT.
You can look here for various regions:

Set 3 Diagnostic Plots

webext.cgd.ucar.edu webext.cgd.ucar.edu

The "hydrology" column to the right shows plots of the seasonal cycle of ZWT.
This is for CLM forced by GSWP3V1 and CRUNCEPV7 atmosphere.
 
Status
Not open for further replies.
Top