On the Need to Modify the Sea Surface Roughness Formulation over Shallow Waters
Abstract
Abstract The wind stress formulation in an atmospheric model over shallow waters is investigated using year-long observations of the wind profile within the first 100 m of the atmosphere and mesoscale simulations. The model experiments use a range of planetary boundary layer parameterizations to quantify the uncertainty related to the turbulent closure assumptions and thus to isolate the dominant influence of the surface roughness formulation. Results indicate that a positive wind speed bias exists when common open-ocean formulations for roughness are adopted for a region with a water depth of 30 m. Imposition of a wind stress formulation that is consistent with previous shallow-water estimates is necessary to reconcile model wind speeds with observations, providing modeling evidence that supports the increase of surface drag over shallow waters. The possibility of including water depth in the parameterization of roughness length is examined.
- Authors:
-
- Research Applications Laboratory, National Center for Atmospheric Research, Boulder, Colorado
- Mesoscale and Microscale Meteorology Laboratory, National Center for Atmospheric Research, Boulder, Colorado
- Publication Date:
- Research Org.:
- University Corporation for Atmospheric Research, Boulder, CO (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- OSTI Identifier:
- 1580184
- Alternate Identifier(s):
- OSTI ID: 1541813
- Grant/Contract Number:
- EE0005373
- Resource Type:
- Published Article
- Journal Name:
- Journal of Applied Meteorology and Climatology
- Additional Journal Information:
- Journal Name: Journal of Applied Meteorology and Climatology Journal Volume: 57 Journal Issue: 5; Journal ID: ISSN 1558-8424
- Publisher:
- American Meteorological Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 54 ENVIRONMENTAL SCIENCES; meteorology & atmospheric sciences; wind; mesoscale models; model evaluation/performance; parameterization
Citation Formats
Jiménez, Pedro A., and Dudhia, Jimy. On the Need to Modify the Sea Surface Roughness Formulation over Shallow Waters. United States: N. p., 2018.
Web. doi:10.1175/JAMC-D-17-0137.1.
Jiménez, Pedro A., & Dudhia, Jimy. On the Need to Modify the Sea Surface Roughness Formulation over Shallow Waters. United States. https://doi.org/10.1175/JAMC-D-17-0137.1
Jiménez, Pedro A., and Dudhia, Jimy. Wed .
"On the Need to Modify the Sea Surface Roughness Formulation over Shallow Waters". United States. https://doi.org/10.1175/JAMC-D-17-0137.1.
@article{osti_1580184,
title = {On the Need to Modify the Sea Surface Roughness Formulation over Shallow Waters},
author = {Jiménez, Pedro A. and Dudhia, Jimy},
abstractNote = {Abstract The wind stress formulation in an atmospheric model over shallow waters is investigated using year-long observations of the wind profile within the first 100 m of the atmosphere and mesoscale simulations. The model experiments use a range of planetary boundary layer parameterizations to quantify the uncertainty related to the turbulent closure assumptions and thus to isolate the dominant influence of the surface roughness formulation. Results indicate that a positive wind speed bias exists when common open-ocean formulations for roughness are adopted for a region with a water depth of 30 m. Imposition of a wind stress formulation that is consistent with previous shallow-water estimates is necessary to reconcile model wind speeds with observations, providing modeling evidence that supports the increase of surface drag over shallow waters. The possibility of including water depth in the parameterization of roughness length is examined.},
doi = {10.1175/JAMC-D-17-0137.1},
journal = {Journal of Applied Meteorology and Climatology},
number = 5,
volume = 57,
place = {United States},
year = {Wed May 02 00:00:00 EDT 2018},
month = {Wed May 02 00:00:00 EDT 2018}
}
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1175/JAMC-D-17-0137.1
https://doi.org/10.1175/JAMC-D-17-0137.1
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Cited by: 25 works
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Figures / Tables:
FIG. 1: The three domains of 27-, 9-, and 3-km horizontal resolution and the location of FINO1 (star). The vertical distribution of the levels closer to the surface is also shown (inset).
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Works referencing / citing this record:
Observations of Air‐Sea Momentum Flux Variability Across the Inner Shelf
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- Ortiz‐Suslow, David G.; Haus, Brian K.; Williams, Neil J.
- Journal of Geophysical Research: Oceans, Vol. 123, Issue 12
Interactions Between Nonlinear Internal Ocean Waves and the Atmosphere
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- Ortiz‐Suslow, David G.; Wang, Qing; Kalogiros, John
- Geophysical Research Letters, Vol. 46, Issue 15
Methods to Estimate Surface Roughness Length for Offshore Wind Energy
journal, April 2019
- Golbazi, Maryam; Archer, Cristina L.
- Advances in Meteorology, Vol. 2019
Laboratory Investigation on Hydrodynamic Performance of an Innovative Aeration Device with a Wave-Driven Heaving Buoy
journal, November 2018
- Yin, Zegao; Wang, Yanxu; Liu, Yong
- Energies, Vol. 11, Issue 12
A new roughness length parameterization accounting for wind–wave (mis)alignment
journal, January 2019
- Porchetta, Sara; Temel, Orkun; Muñoz-Esparza, Domingo
- Atmospheric Chemistry and Physics, Vol. 19, Issue 10
Figures / Tables found in this record:
Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.