No in-cloud LW optical depth

[deepashree_dutta@student_unsw_edu_au]

Hi all,

I'm integrating PI runs using WACCM with CAM4.
I want to look at the LW and SW cloud optical depths in the Arctic. I found these output variables related to SW optical depth:
ICE_ICLD_VISTAU - Ice in-cloud visible sw optical depth
LIQ_ICLD_VISTAU - Liquid in-cloud visible sw optical depth
TOT_CLD_VISTAU - Total gbx cloud visible sw optical depth
TOT_ICLD_VISTAU - Total in-cloud visible sw optical depth

But couldn't find in-cloud LW optical depth. Why the LW cloud optical depth is not available?
Can I add it in the output field somehow?

Thanks a lot,
Deepashree