Mean dynamic topography and surface circulation in the western Labrador Sea and Newfoundland offshore: satellite observations and ocean modelling

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Mean dynamic topography and surface circulation in the western Labrador Sea and Newfoundland offshore: satellite observations and ocean modelling

机译：拉布拉多西部和纽芬兰近海的平均动态地形和地表环流：卫星观测和海洋模拟

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摘要

Mean dynamic ocean topography and surface circulation for the western Labrador Sea and Newfoundland offshore are computed using a three-dimensional, high-resolution, non-linear finite-element ocean model and monthly-mean climatologies of temperature, salinity and wind stress. The agreement of the model surface topography and circulation with estimates from satellite altimetry, drifter data and hydrographic measurements, and from satellite and in situ gravity data, is good in the continental slope and deep sea but poor in some coastal and shelf regions. The surface currents from the altimetry and gravity data also compare favourably with satellite-tracked drifter data. The present study suggests that the model sea surface topography can be useful for more accurate determination of the marine geoid and therefore altimetry-derived absolute sea surface heights and geostrophic currents off Newfoundland and Labrador.

机译：使用三维，高分辨率，非线性有限元海洋模型以及温度，盐度和风应力的月平均气候条件，计算了拉布拉多西部和纽芬兰近海的平均动态海洋地形和地表环流。模型表面的地形和环流与卫星测高，漂流者数据和水文测量以及卫星和原地重力数据的估计值之间的一致性在大陆坡和深海中很好，但在某些沿海和陆架地区却很差。来自测高和重力数据的地表电流也可与卫星跟踪的漂移数据进行比较。本研究表明，模型海面地形可用于更精确地确定海洋大地水准面，从而有助于确定来自纽芬兰和拉布拉多海域的高程绝对海面高度和地转流。

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《International journal of remote sensing》 |2011年第20期|p.5381-5391|共11页
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Northwest Atlantic Fisheries Centre, Fisheries and Oceans Canada, St. John's, NL, Canada;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
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Mean dynamic topography and surface circulation in the western Labrador Sea and Newfoundland offshore: satellite observations and ocean modelling

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