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首页> 外文期刊>Dynamics of Atmospheres and Oceans >Simulating and understanding the gap outflow and oceanic response over the Gulf of Tehuantepec during GOTEX
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Simulating and understanding the gap outflow and oceanic response over the Gulf of Tehuantepec during GOTEX

机译：模拟并了解GOTEX期间Tehuantepec海湾的缺口流出和海洋响应

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摘要

Tehuantepecer is a strong mountain gap wind traveling through Chivela Pass into eastern Pacific coast in southern Mexico, most commonly between October and February and brings huge impacts on local and surrounding meteorology and oceanography. Gulf of Tehuantepec EXperiment (GOTEX) was conducted in February 2004 to enhance the understanding of the strong offshore gap wind, ocean cooling, vertical circulations and interactions among them. The gap wind event during GOTEX was simulated using the U.S. Navy Coupled Ocean/Atmosphere Mesoscale Prediction System (COAMPS (R)). The simulations are compared and validated with the observations retrieved from several satellites (GOES 10-12, MODIS/Aqua/Terra, TMI, and QuikSCAT) and Airborne EXpendable BathyThermograph (AXBT). The study shows that the gap wind outflow has a fanlike pattern expending from the coast and with a strong diurnal variability. The surface wind stress and cooling along the axis of the gap wind outflow caused intense upwelling and vertical mixing in the upper ocean; both contributed to the cooling of the ocean mixed layer under the gap wind. The cooling pattern of sea surface temperature (SST) also reflects temperature advection by the nearby ocean eddies to have a crescent shape.
机译：Tehuantepecer是一道强烈的高山裂隙风，穿过Chivela Pass进入墨西哥南部的东太平洋海岸，最常见的时间是10月至2月，这对当地和周围的气象学和海洋学产生了巨大影响。 Tehuantepec海湾实验（GOTEX）于2004年2月进行，以加深对强海上缝隙风，海洋冷却，垂直环流以及它们之间相互作用的理解。 GOTEX期间的间隙风事件是使用美国海军海洋/大气中尺度耦合系统（COAMPS（R））进行模拟的。通过从几颗卫星（GOES 10-12，MODIS / Aqua / Terra，TMI和QuikSCAT）和机载可扩展水深热成像仪（AXBT）中获得的观测结果对模拟进行比较和验证。研究表明，缝隙风流出具有从海岸延伸的扇状模式，并且具有很强的日变化性。沿间隙风流出轴的表面风应力和冷却导致上层海洋剧烈上升和垂直混合。两者都促进了间隙风作用下海洋混合层的冷却。海面温度（SST）的冷却模式也反映了附近海洋涡流对流的温度，呈月牙形。

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