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

How can I get CBH and CTH?

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.

paulapd

Member
Hello,

I am trying to get the CBH (Cloud Base Hight) and the CTH (Cloud Top Hight) from my WRF data, but I have not succeded yet.

How can I get these variables?

I have tried it using:
  • YSU PBL
  • RRTM (longwave option), Dudhia (shortwave option)
  • Noah Land Surface model
  • WSM6 (microphysics option)
  • Kain-Fritsch scheme (cumulus option)


Thank you so much!
 
These variables are not standard WRF state variables. You have two ways to obtain them:

(1) Modify WRF codes by:

a. adding them as state variable
b. change codes to make them available to the specific schemes and drivers

Or

(2) run UPP to output these variables. Details of UPP can be found here: https://dtcenter.org/community-code/unified-post-processor-upp
 
Please note that you need to download older UPP version before V9.0. This is because since V9.0 UPP no longer support WRF.
 
Top