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RRTMK bugs reported #1312

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dudhia opened this issue Nov 4, 2020 · 10 comments
Closed

RRTMK bugs reported #1312

dudhia opened this issue Nov 4, 2020 · 10 comments
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@dudhia
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dudhia commented Nov 4, 2020

I am attaching the docx file (see if it works) from Soonyoung Roh (NIMS, Korea)
I have looked at this and their issues seem valid. Sent to Songyou Hong for developers to look at.

Bug_report_On_WRF.docx

@davegill
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davegill commented Nov 4, 2020

@dudhia
Jimy,
With just a cursory view, these seem bug fixes seem to be correct.

@dudhia
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dudhia commented Nov 4, 2020 via email

@weiwangncar
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Are you going to make a PR?

@weiwangncar
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Also, does it affect model results otherwise?

@weiwangncar
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I guess the last two do...

@dudhia
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dudhia commented Nov 4, 2020 via email

@dudhia
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dudhia commented Nov 5, 2020 via email

@dudhia
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dudhia commented Nov 5, 2020 via email

@weiwangncar
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@dudhia Once you have configure.wrf file, search for BUILD_RRTMK, and set the value to 0. However your laptop version of gfortran may not be able to compile this scheme. It looks like you need 9 and above.

@dudhia
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dudhia commented Nov 5, 2020 via email

@dudhia dudhia mentioned this issue Nov 5, 2020
vlakshmanan-scala pushed a commit to scala-computing/WRF that referenced this issue Apr 4, 2024
TYPE: bug fix

KEYWORDS: RRTMG-K option (sw and lw option 14)

SOURCE: Soonyoung Roh and Hwan-Jin Song (National Institute of Meteorological Science, Korea)

DESCRIPTION OF CHANGES:
The bugs include wrong surface downward diagnostic output for long- and short-wave fluxes (clear sky fluxes misplaced in cloudy sky flux arrays), a wrong data statement value for wavenum2 and a wrong value used for bound check for effective size of snow.
Affects radiation driver call arguments for lw and sw scheme and internal numerical values in two places of the shortwave scheme (rrtmg_swk).

This has been confirmed as a correct fix by the developers.

ISSUE:
Fixes wrf-model#1312

LIST OF MODIFIED FILES:
M phys/module_ra_rrtmg_swk.F
M phys/module_radiation_driver.F

TESTS CONDUCTED:
Test reported by source (documented in Issue wrf-model#1312)
Jenkins testing all pass

RELEASE NOTE:
Fixed a bug in surface downward diagnostic output of long- and short-wave fluxes and two other bugs involving wrong numerical values used in the code (Thanks to Roh and Song of NIMS, Korea).
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