Air-Sea Interaction Effects in the Lower Troposphere Across the North Wall of the Gulf Stream

Sweet, Wayne; Fett, Robert W.; Kerling, Jeffrey L.; Violette, Paul La

doi:10.1175/1520-0493(1981)109<1042:asieit>2.0.co;2

Cited by 159 publications

(142 citation statements)

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“…Nevertheless, the wind speed increased over the warm water area. This might be analogous to the observations of Sweet et al (1981) and Mey et al (1990). The former studied the north wall of the Gulf Stream and measured an increase in wind speeds over the Gulf Stream water, when the wind was blowing from over the cold slope water; the latter observed similar wind behaviour across the Subtropical Convergence -Agulhas SST front.…”

Section: Air-sea Interaction Characteristics In Frontal Areassupporting

confidence: 78%

“…by several remote sensing techniques (cf. McClain et al, 1982;Li et al, 1989) or they can even be seen by eye (Knauss, 1957;Sweet et al, 1981;Fedorov andGinzburg, 1986, 1988).…”

Section: Discussionmentioning

confidence: 99%

“…Ratios of about 0.5 can be found from the study of Mey et al (1990). Sweet et al (1981) studied the front between the cold Slope Water and the Gulf Stream and observed AT a /AT s ratios of 0.4 and 0.8 for two different situations. The average SST change across a front was 2.8°C in our study, which can be considered moderate.…”

Section: O6 / Timo Vihma Jouko Launiainen and Günther Krause 3 Othementioning

confidence: 99%

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On the air‐sea interaction in areas of thermal marine fronts in the Greenland Sea

1991

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Section: Air-sea Interaction Characteristics In Frontal Areassupporting

confidence: 78%

“…by several remote sensing techniques (cf. McClain et al, 1982;Li et al, 1989) or they can even be seen by eye (Knauss, 1957;Sweet et al, 1981;Fedorov andGinzburg, 1986, 1988).…”

Section: Discussionmentioning

confidence: 99%

Section: O6 / Timo Vihma Jouko Launiainen and Günther Krause 3 Othementioning

confidence: 99%

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On the air‐sea interaction in areas of thermal marine fronts in the Greenland Sea

1991

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“…Equation (8) also indicates an inverse dependence upon static stability. As has been observed across the Gulf Stream temperature front, warmer waters to the south of the front are associated with more turbulence and lower static stability compared to the conditions found at low levels north of the front [e.g., Sweet et al, 1981]. The influence of SST on the development of unstable baroclinic waves may depend not just on SST gradient, but also on the SST itself.…”

Section: Mechanisms Of Sst Feedback In Middle Latitudesmentioning

confidence: 93%

The role of Atlantic Ocean-atmosphere coupling in affecting North Atlantic oscillation variability

Czaja

Robertson²,

Huck³

2003

Geophysical Monograph Series

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We review the role of ocean-atmosphere interactions over the Atlantic sector in North Atlantic Oscillation (NAO) variability. The emphasis is on physical mechanisms, which are illustrated in simple models and analyzed in observations and numerical models. Some directions of research are proposed to better assess the relevance of Atlantic air-sea interactions to observed and simulated NAO variability.

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“…As frentes oceânicas possuem um impacto sobre a estrutura da CLA marítima e esses gradientes de TSM, e mudam a distribuição horizontal dos fluxos ar-mar (Khalsa, 1989;Friehe et al, 1991). Frequentemente, observa-se ventos mais intensos no lado quente das frentes oceânicas em resposta aos fortes fluxos de calor turbulentos (Sweet et al, 1981). Entretanto, a aceleração não é constante e organizada ou homogênea como mostrado por Weller et al (1998).…”

Section: Variação Da Temperatura Da Superfície Do Marunclassified

Relação Entre a Temperatura Da Superfície Do Mar E a Camada De Mistura Oceânica Sob a Passagem De Ciclones Extratropicais No Atlântico Sudoeste

Palmeira

Camargo

Palmeira

2015

Rev. bras. meteorol.

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RESUMONeste artigo investigou-se a importância da variação da camada de mistura oceânica (CMO) na temperatura da superfície do mar (TSM), sob a influencia de ciclones extratropicais atmosféricos. Um modelo simplificado de CMO oriundo do modelo HYCOM (Hybrid Coordinate Ocean Model), baseado no modelo de Kraus e Turner, foi inserido como uma sub-rotina do modelo BRAMS (Brazilian Regional Atmospheric Modelling System), para atualizar a TSM a cada passo de tempo no modelo atmosférico. A CMO-BRAMS caracterizou-se por estreitar durante as trajetórias das baixas pressões, embora não tenha indicado um significativo aprofundamento seguindo o anticiclone da retaguarda do sistema frontal. A TSM calculada pela CMO do BRAMS apresentou grande variação (1°C-5°C) nos instantes iniciais. Entretanto, uma vez ajustada houve pouca variação da TSM no decorrer do tempo (1,0°C-2,5°C), com o aprofundamento (estreitamento) da CMO associada à diminuição (aumento) à temperatura. Palavras-chave: Camada de mistura oceânica; TSM; Ciclones do Atlântico Sul; Modelagem numérica; BRAMS; HYCOM. ABSTRACT: RELATIONSHIP BETWEEN SEA SURFACE TEMPERATURE AND OCEANIC MIXED LAYER ON THE PASSAGE OF EXTRATROPICAL CYCLONES AT THE SOUTHWEST ATLANTICThe importance of the oceanic mixed layer (OML) variation on the sea surface temperature (SST), under the influence of atmospheric extratropical cyclones was investigated in this paper. An OML simplified model derived from HYCOM (Hybrid Coordinate Ocean Model) model, based on Kraus and Turner model, was inserted as a subroutine on the BRAMS (Brazilian Regional Atmospheric Modelling System), to update the TSM every time step in the atmospheric model. The OML-BRAMS was characterized by narrowing during the trajectories of low pressure, but has not indicated a significant deepening following the anticyclone rear frontal system. The SST calculated by the BRAMS OML showed large variations (1.0°C-5.0°C) at the initial times. However, as soon as SST has been adjusted, few variation over time occurs (1.0°C-2.5°C), with the deepening (narrowing) of OML associated with decreasing (creasing) temperature.

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Air-Sea Interaction Effects in the Lower Troposphere Across the North Wall of the Gulf Stream

Cited by 159 publications

References 0 publications

On the air‐sea interaction in areas of thermal marine fronts in the Greenland Sea

On the air‐sea interaction in areas of thermal marine fronts in the Greenland Sea

The role of Atlantic Ocean-atmosphere coupling in affecting North Atlantic oscillation variability

Relação Entre a Temperatura Da Superfície Do Mar E a Camada De Mistura Oceânica Sob a Passagem De Ciclones Extratropicais No Atlântico Sudoeste

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