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Add lake_option to hydro_namelist, reservoirs to their own new namelist #725

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@rcabell rcabell commented Nov 10, 2023

TYPE: enhancement

KEYWORDS: lakes, reservoirs

SOURCE: NCAR

DESCRIPTION OF CHANGES:

  • Add lake_option (integer) to &hydro_nlist: 0 [lakes off], 1 [level pool], or 2 [passthrough], or 3 [reservoir DA]

    • turning lakes off (lake_option=0) will disable lakes even if route_lake_f is supplied, or outlake is turned on.

    • Reservoir DA will not be used unless lake_option=3, even if all other required namelist options are present

  • Reservoir options have been moved from &hydro_nlist to &reservoir_nlist

    • This will make it easier to isolate / compose namelist files

    • If lake_option is not equal to 3, &reservoir_nlist won't be read, meaning it can be completely removed for applications that don't need it

TESTS CONDUCTED: In-progress, will convert from Draft and update here when complete.

* Add `lake_option` (integer) to &hydro_nlist:
  0 [lakes off], 1 [level pool], or 2 [passthrough], or 3 [reservoir DA]

  - turning lakes off (lake_option=0) will disable lakes even if
    route_lake_f is supplied, or outlake is turned on.

  - Reservoir DA will not be used unless lake_option=3, even if all
    other required namelist options are present

* Reservoir options have been moved from &hydro_nlist to
  &reservoir_nlist

   - This will make it easier to isolate / compose namelist files

   - If lake_option is not equal to 3, &reservoir_nlist won't be read,
     meaning it can be completely removed for applications that don't
     need it
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rcabell commented Nov 10, 2023

CI Tests failing due to namelist changes. Will update...

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I performed the following tests with channel only runs for one to two months.

  • Confirm the cold start with level pool give identical answers - Done and confirmed it produced identical results
  • Confirm that warm start with level pool give identical answers - Done and confirmed it produced identical results
  • Confirm that cold start with no lake give identical answers - Done and confirmed it produced identical results.
  • Confirm that a warm start with no lake gives identical answers- Done and confirmed it produced identical results.
  • Confirm that a warm start with a pass-through option works fine - the answers would not be the same but would like to make sure there are no strange values in it. Done and hydrographs at hundreds of locations were reviewed and they look normal.

@rcabell rcabell force-pushed the lakeopt-nml branch 2 times, most recently from 0896510 to b56ef84 Compare November 14, 2023 17:10
@NCAR NCAR deleted a comment from hydro-automerge Nov 14, 2023
@rcabell rcabell marked this pull request as ready for review November 14, 2023 17:23
scrasmussen
scrasmussen previously approved these changes Nov 14, 2023
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Read through everything and it LGTM!

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rcabell commented Dec 7, 2023

I added a small fix to config.f90 to reset lake_option from 3 to 1 (level pool) after setting the reservoir_type_specified flag (which activates the various Reservoir DA schemes). I also added a message to LEVELPOOL_PHYSICS() to call hydro_stop() if an invalid lake_option is passed to it.

This fix corrects the regression seen on Derecho when using Reservoir DA [not tested on GitHub CI].

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Those fixes and changes look good!

call hydro_stop("Compound channel option not available for diffusive wave routing. ")
end if

if(self%reservoir_type_specified) then
if(len(trim(self%reservoir_parameter_file)) .eq. 0) then
if ((self%lake_option .lt. 0) .and. (self%lake_option .gt. 3)) then
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This should be .or. not .and.

@rcabell rcabell added this to the WRF-Hydro v5.4 milestone Nov 1, 2024
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3 participants