Scheduled Downtime
On Friday 21 April 2023 @ 5pm MT, this website will be down for maintenance and expected to return online the morning of 24 April 2023 at the latest

3DTKE - new scheme- open boundary issues

This post was from a previous version of the WRF&MPAS-A Support Forum. New replies have been disabled and if you have follow up questions related to this post, then please start a new thread from the forum home page.


New member
I've tested the new PBL-LES scheme in V4.2 in idealized settings (a channel with a patch of forest in the beginning of the channel), and immediately see that there may be an issue with the setup using open boundaries (north-south in this case). Attached is a ncview screen dump where both MYNN and the new 3DTKE scheme are shown. Red lines are found at the upper and lower boundary indicating high wind speed, but this is not present in the MYNN scheme case. Any reason why not?


  • compTKE.png
    317.5 KB · Views: 732
I don't have an immediate answer to this question. I will talk to our expert and get back to you once i have any information about this issue.