globalchange  > 影响、适应和脆弱性
DOI: 10.1002/2016MS000861
Scopus记录号: 2-s2.0-85022212492
论文题名:
Modeling the air-sea feedback system of Madeira Island
作者: Pullen J; , Caldeira R; , Doyle J; D; , May P; , Tomé R
刊名: Journal of Advances in Modeling Earth Systems
ISSN: 19422466
出版年: 2017
卷: 9, 期:3
起始页码: 1641
结束页码: 1664
语种: 英语
英文关键词: Atmospheric boundary layer ; Boundary layers ; Oceanography ; Wakes ; Atmospheric vortices ; Cumulative effects ; Feedback systems ; Highest resolutions ; Island wakes ; Meteorological station ; Mutual interaction ; Ocean temperature ; Atmospheric temperature ; air-sea interaction ; atmosphere-ocean coupling ; boundary layer ; data assimilation ; feedback mechanism ; lee wave ; satellite imagery ; sea surface temperature ; topography ; vortex shedding ; wake ; wind forcing ; Madeira ; Portugal
英文摘要: A realistic nested data-assimilating two-way coupled ocean/atmosphere modeling study (highest resolution 2 km) of Madeira Island was conducted for June 2011, when conditions were favorable for atmospheric vortex shedding. The simulation's island lee region exhibited relatively cloud-free conditions, promoting warmer ocean temperatures (∼2°C higher than adjacent waters). The model reasonably reproduced measured fields at 14 meteorological stations, and matched the dimensions and magnitude of the warm sea surface temperature (SST) wake imaged by satellite. The warm SSTs in the wake are shown to imprint onto the atmospheric boundary layer (ABL) over several diurnal cycles by modulating the ABL depth up to ∼200–500 m. The erosion and dissipation of the warm ocean wake overnight was aided by atmospheric drainage flow and offshore advection of cold air (ΔT = 2°C) that produced strong upward heat fluxes (∼50 W/m2 sensible and ∼250 W/m2 latent) on an episodic basis. Nevertheless, the warm wake was never entirely eroded at night due to the cumulative effect of the diurnal cycle. The spatial pattern of the diurnal warming varied day-to-day in location and extent. Significant mutual interaction of the oceanic and atmospheric boundary layers was diagnosed via fluxes and temperature cross sections and reinforced by sensitivity runs. The simulation produces for the first time the interactive nature of the ocean and atmosphere boundary layers in the warm wake region of an island with complex terrain. © 2017. The Authors.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75754
Appears in Collections:影响、适应和脆弱性
气候变化与战略

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作者单位: Department of Civil, Environmental and Ocean Engineering, Stevens Institute of Technology, Hoboken, NJ, United States; Oceanic Observatory of Madeira, Agência Regional para o Desenvolvimento da Investigação Tecnologia e Inovação, Funchal, Portugal; CIIMAR & CIIMAR-Madeira—Interdisciplinary Centre of Marine and Environmental Research, Porto & Madeira Island, Portugal; Marine Meteorology Division, Naval Research Laboratory, Monterey, CA, United States; CSRA, Monterey, CA, United States; Instituto Dom Luiz, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal

Recommended Citation:
Pullen J,, Caldeira R,, Doyle J,et al. Modeling the air-sea feedback system of Madeira Island[J]. Journal of Advances in Modeling Earth Systems,2017-01-01,9(3)
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