How to simulate reservoirs in NCAR-reach configuration

[viventus0]

Hi
I am currently working on simulating reservoirs using reach-based river channels in the WRF-Hydro 5.2.0 system. I understand that WRF-Hydro version 5.1.1 introduced improvements for reservoir simulations specifically for the NCAR-reach configuration (with channel_option set to 1 or 2). However, it appears that these enhancements were not carried over to version 5.2.0.

Without these specific improvements from version 5.1.1, is it still feasible to simulate reservoirs in version 5.2.0? I have attempted to do so, but my simulations have not been successful. The model runs and generates the LAKEOUT.nc file, but there is no inflow or outflow to or from the reservoir, even though there were several heavy rainfall events. Here is how I set up the model:

• Defined the LAKEGRID in Fulldom_hires.nc
• Configured the dam, weir, and orifice variables in LAKEPARM.nc
• Set UDMP_OPT = 0 in hydro.namelist

Could anyone provide guidance or suggestions on how to properly simulate reservoirs using reach-based river channels in version 5.2.0? Any advice would be greatly appreciated.

[aubreyd]

It appears that this capability (use of lakes with non-UDMP reach-based channel routing) was added into v5.1.1, but does not appear to be in subsequent releases. We are looking into this now. Thanks for calling this to our attention.

[viventus0]

Hi Aubrey Thanks for the update! I had been wondering why the reservoir code had been reverted in v5.2.0. Currently I am trying to implement the approach of v5.1.1 to v5.2.0 code. Will let you know if I get some meaningful numbers! Ventus 2024년 10월 5일 (토) 오전 12:40, Aubrey Dugger ***@***.***>님이 작성:

…

It appears that this capability (use of lakes with non-UDMP reach-based channel routing) was added into v5.1.1 <https://github.com/NCAR/wrf_hydro_nwm_public/commits/v5.1.1/>, but does not appear to be in subsequent releases. We are looking into this now. Thanks for calling this to our attention. — Reply to this email directly, view it on GitHub <#769 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/BK5RZGI5SFCJ76XLBXHWWI3ZZ2ZHRAVCNFSM6AAAAABNN7GIG2VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDGOJTHE4DGMJTHE> . You are receiving this because you authored the thread.Message ID: ***@***.***>