Error message shows "SW radiation is negative!!" while using generic metforcing. However there are no negative or Nan values in the downward shortwave radiation.

[PriDeHydro]

Hi,
I am trying to run NoahMP4.0.1 with Hymap2 at 0.1 degrees and a 1-hour time-step over the portion in southern India using forecasted forcing.
A forecasted forcing at 4km spatial resolution and daily time-step made to resemble LDT Generated forcing with the following attributes

MERRA2 is used as a global forcing that provides forcing in the other part of India where the forecasted forcing is not available.

The lis config is configured to use MERRA2 and ldt-generated forcing.

However, while running the LIS over the complete domain, the run gets initiated and LIS shows an error message as "SW radiation is negative!!"

The PBS error log shows

I have checked the generic metforcing for any negative or NaN values but everything seems in order. Also, the runs are successful if I used SW radiation from MERRA2 in place of the generic met forcing but fail when generic forcing is used.

I am attaching generic metforcing used for the simulation, lisconfig, and lislog outputs. I would appreciate any help regarding this @dmocko , @karsenau .

Thanks.
files_ref.zip

[karsenau]

Hi @PriDeHydro:

I was wondering if you could help describe a bit more about the "forecasted forcing" that you created for your region. I see that you mentioned "daily time-step". Is that the time-step interval that your created forcing is at? If so, NoahMP could have issues, especially in the radiation fields and energy balance to such a coarse temporal resolution in the forcing.

Also, make sure not to use -9999 for the SWdown or other fields, other than fill regions. You LDT log file indicates that it is interpreting an undefined value of -9999 as an actual value, instead of 0 as the minimum. You might want to check how some of your forcing fields (e.g., swdown and precipitation) are represented for 0-values.