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Bug Fix for Single-layer UCM Green Roof Option#223

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mkavulich merged 1 commit intowrf-model:masterfrom
kkeene44:single_layer_ucm_bug_fix
Mar 31, 2017
Merged

Bug Fix for Single-layer UCM Green Roof Option#223
mkavulich merged 1 commit intowrf-model:masterfrom
kkeene44:single_layer_ucm_bug_fix

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@kkeene44
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@kkeene44 kkeene44 commented Mar 29, 2017

TYPE: bug fix

KEYWORDS: module_sf_urban.F, green_roof option,

SOURCE: Jiachun Yang, Princeton University

DESCRIPTION OF CHANGES: There was a problem in the green roof option within module_sf_urban.F. Subsurface temps of the green roof failed to converge at very dry conditions with very small time steps. The bug occurs because surface and subsurface temps are updated at the same time in the iteration loop, which leads to a surface energy non-closure problem. The modifications provided by the developer of this particular part of the module correct this.

LIST OF MODIFIED FILES:
M phys/module_sf_urban.F

TESTS CONDUCTED: regression tests pass. Per Mike Barlage, we trust this modification and he is okay with implementing it.

…al processes for the single-layer UCM) to correct a bug

in the green roof module
@mgduda
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mgduda commented Mar 30, 2017

@kkeene44 In the description, should "disclosure" be "closure" or "non-closure"? I actually have no idea, but "disclosure" sounds strange in this context.

@kkeene44
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@mgduda done.

@mkavulich mkavulich changed the title Bug Fix for Single-layer UCM Green Roof Module Bug Fix for Single-layer UCM Green Roof Option Mar 31, 2017
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Approved by wrf-dev committee

@mkavulich mkavulich merged commit 5f3e2ee into wrf-model:master Mar 31, 2017
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3 participants