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Hailcast diagnostics: hail diameter, standard deviation #86

Merged
merged 1 commit into from
Dec 30, 2016
Merged

Hailcast diagnostics: hail diameter, standard deviation #86

merged 1 commit into from
Dec 30, 2016

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kkeene44
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@kkeene44 kkeene44 commented Dec 27, 2016

TYPE: new feature

KEYWORDS: hailcast, physics, HAILCAST_DIAM_MEAN, HAILCAST_DIAM_STD, hailcast_opt, diagnostics

SOURCE: Becky Adams-Selin (AER)

DESCRIPTION OF CHANGES: Removed options/code related to AFWA hail forecasting, and added a new hailcast physics diagnostics option. Turning this on produces output for mean hail diameter (HAILCAST_DIAM_MEAN) and a standard deviation at each grid point (HAILCAST_DIAM_STD).

  1. To activate this option for domains 1 and 2, add
&physics
  hailcast_opt = 1, 1 

to the namelist.input file.

  1. Horizontal grid spacing of 4 km or finer is required for the option.

LIST OF MODIFIED FILES:
M Registry/Registry.EM_COMMON
M Registry/registry.afwa
M dyn_em/module_after_all_rk_steps.F
M phys/Makefile
M phys/module_diag_afwa.F
D phys/module_diag_afwa_hail.F
A phys/module_diag_hailcast.F
M phys/module_diagnostics/driver.F
M share/module_check_a_mundo.F

TESTS CONDUCTED: Verified that this compiles, verified that the 2 diagnostics are output in wrfout* files, and look okay (with a severe storm outbreak day in Oklahoma) - 2 ncview plots attached. Having the hailcast option activated adds 28 seconds of run-time to a 30 hour, 27/9/3 resolution domain. This was tested with Intel 15.0.1, using 32 processors. Regression tests pass.

hailcast_diam_mean
hailcast_diam_std

@davegill davegill changed the title New Hailcast Option Hailcast diagnostics: hail diameter, standard deviation Dec 28, 2016
@davegill
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Kelly,
Would you add a few lines of how you activate this option in the namelist?

@kkeene44
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@davegill done!

@davegill
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With the test of the hailcast in the OK domain, if you run with and then without the option turned on, what sort of timing performance do you see?

@kkeene44
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@davegill I added that information to the testing section.

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Approved by wrf-dev committee

@kkeene44 kkeene44 merged commit 2593835 into wrf-model:master Dec 30, 2016
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3 participants