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首页> 外文期刊>IEEE Geoscience and Remote Sensing Letters >Satellite Data Analysis of the Upper Ocean Response to Hurricanes Katrina and Rita (2005) in the Gulf of Mexico
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Satellite Data Analysis of the Upper Ocean Response to Hurricanes Katrina and Rita (2005) in the Gulf of Mexico

机译：墨西哥湾卡特里娜飓风和丽塔飓风对上层海洋响应的卫星数据分析（2005年）

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摘要

The biological and physical effects of hurricanes Katrina and Rita (2005) on the upper ocean are analyzed using satellite observations and model simulations of the mixed layer in the Gulf of Mexico. Along the hurricanes' passages, the Moderate Resolution Imaging Spectroradiometer and Advanced Very High Resolution Radiometer instruments detected two areas of maximum surface chlorophyll-a (chl a) concentration and sea surface cooling. These areas had peak intensities ranging from 2-3 mgmiddotm-3 and 3 degC-4 degC. The depth of the mixed layer deepened by approximately 33-52 m, and the temperature of the mixed layer cooled approximately 2 degC. Hurricane wind fields intensified the oceanic cyclonic circulation, maximizing upwelling, surface cooling, and deepening the mixed layer. The forced mixed layer deepening injected nutrients into the surface layer, resulting in phytoplankton blooms three-five days later (i.e., higher chl a concentrations)
机译：利用卫星观测和墨西哥湾混合层的模式模拟，分析了卡特里娜飓风和丽塔飓风（2005）对高空的生物和物理影响。沿着飓风通道，中分辨率成像分光辐射仪和先进的超高分辨率辐射计仪器检测到两个区域的最大表面叶绿素a（chla）浓度和海面冷却。这些区域的峰强度在2-3 mgmiddotm-3和3 degC-4℃之间。混合层的深度加深了约33-52 m，混合层的温度冷却了约2摄氏度。飓风场加剧了海洋气旋的循环，最大程度地增加了上升流，地表降温并加深了混合层。强迫混合层加深了向表层注入的养分，导致三五天后浮游植物开花（即较高的chl a浓度）

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