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首页> 外文期刊>Geoscience and Remote Sensing, IEEE Transactions on >Enhanced Arctic Sea Ice Drift Estimation Merging Radiometer and Scatterometer Data
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Enhanced Arctic Sea Ice Drift Estimation Merging Radiometer and Scatterometer Data

机译：增强的北极海冰漂移估算合并辐射计和散射仪数据

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摘要

Satellites enable daily and global coverage of the polar oceans and provide a unique monitoring capability of sea ice dynamics. Sea ice drift maps can be estimated in Arctic from several satellite sensors, particularly from scatterometers and radiometers. This study presents the benefits of combining single drift fields at the same resolution into a “merged” field, built at three- and six-day lags during winters with a 62.5-km resolution. It is shown that combining these drift fields not only increases the reliability of the displacement estimation and the number of estimated vectors to almost a full ice covered area but also expands the time period over which these estimations are reliable from freeze until the melt onset. The autumn–winter–spring sea ice drift fields presented here are systematically produced at Institut Français de Recherche pour l''Exploitation de la Mer/Centre d''Exploitation et de Recherche Satellitaire, the sea ice drift 1992–2011 time series is available, and the processing is ongoing. These data are available for operational use and for the scientific community.
机译：卫星使极地海洋的每日和全球范围覆盖，并提供了独特的海冰动力学监测能力。北极的海冰漂移图可以通过几个卫星传感器，尤其是散射仪和辐射计来估算。这项研究显示了将具有相同分辨率的单个漂移场合并为“合并”场的好处，该场在冬季以62.5 km的分辨率滞后三天和六天。结果表明，将这些漂移场组合起来，不仅可以提高位移估算的可靠性，而且可以将估算矢量的数量增加到几乎整个冰覆盖面积，而且还可以延长从冻结到融化开始这些估算的可靠性。此处介绍的秋冬春季海冰漂移场是在法国勘探与开发中心/法国卫星研究所开发的，有1992–2011年的时间序列，并且处理正在进行中。这些数据可用于运营和科学界。

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