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Wind-wave relationship model and analysis of typhoon wave fields in the South China Sea from HY-2A satellite observations
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing ( IF 4.7 ) Pub Date : 2020-01-01 , DOI: 10.1109/jstars.2020.3007495
Zengzhou Hao , Qianguang Tu , Siqi Zhang , Jianyu Chen , Delu Pan

Significant wave height is an important parameter for characterizing ocean surface waves. With the development of remote sensing technology, satellite radar altimetry has become an essential tool for obtaining significant wave height estimations. However, its measurement only covers the satellite track on the ground and cannot be applied to large regions or areas. In this study, we obtained significant wave height from the Hai Yang-2A (HY-2A) radar altimeter and sea surface wind speed at a 10-m height from the HY-2A microwave scatterometer for October 2013, and then proposed a wind-wave relationship model for the South China Sea using linear/nonlinear regression analysis at high/low wind speeds (0–40 m s–1). By comparison with two other wind-wave models and validation with HY-2A observations in November 2013, our results show that the proposed wind-wave relationship model is credible, and at low wind speed exhibited good consistency with the wind-wave model from in situ observations. According to the proposed model, significant wave height from the HY-2A microwave scatterometer-retrieved wind speed and ocean wind wave analysis during the “1329” Typhoon Krosa were successfully obtained and determined. Data coverage of the computed significant wave height was far wider than that of the satellite radar altimeter observations and demonstrated development of typhoon wave fields over a large region. Overall, this study and proposed model provide useful information for the analysis and forecast of typhoon waves and potential storm surge disasters.

中文翻译:

HY-2A卫星观测南海台风波场风波关系模型及分析

有效波高是表征海洋表面波浪的重要参数。随着遥感技术的发展,卫星雷达测高已成为获得有效波高估计的重要工具。但是,它的测量只覆盖了地面上的卫星轨道,不能应用于大面积或大面积的区域。在这项研究中,我们从海洋 2A(HY-2A)雷达高度计和 HY-2A 微波散射计 10 米高度的海面风速获得了 2013 年 10 月的有效波高,然后提出了一种风-在高/低风速(0-40 ms-1)下使用线性/非线性回归分析的南海波浪关系模型。通过与 2013 年 11 月的 HY-2A 观测数据和其他两种风波模型的比较和验证 我们的结果表明,所提出的风浪关系模型是可信的,并且在低风速下与原位观测的风浪模型表现出良好的一致性。根据所提出的模型,成功获得并确定了“1329”台风“克罗莎”期间HY-2A微波散射仪反演风速和海洋风波分析的有效波高。计算出的有效波高的数据覆盖范围远大于卫星雷达高度计观测的数据覆盖范围,并证明了台风波场在大区域的发展。总的来说,这项研究和提出的模型为台风波和潜在风暴潮灾害的分析和预测提供了有用的信息。在低风速下与原位观测的风浪模型表现出良好的一致性。根据所提出的模型,成功获得并确定了“1329”台风“克罗莎”期间HY-2A微波散射仪反演风速和海洋风浪分析的有效波高。计算出的有效波高的数据覆盖范围远大于卫星雷达高度计观测的数据覆盖范围,并证明了台风波场在大区域的发展。总的来说,这项研究和提出的模型为台风波和潜在风暴潮灾害的分析和预测提供了有用的信息。在低风速下与原位观测的风浪模型表现出良好的一致性。根据所提出的模型,成功获得并确定了“1329”台风“克罗莎”期间HY-2A微波散射仪反演风速和海洋风波分析的有效波高。计算出的有效波高的数据覆盖范围远大于卫星雷达高度计观测的数据覆盖范围,并证明了台风波场在大区域的发展。总的来说,这项研究和提出的模型为台风波和潜在风暴潮灾害的分析和预测提供了有用的信息。在“1329”台风“克罗莎”期间,HY-2A微波散射计反演的风速和海洋风波分析的有效波高被成功获取和确定。计算出的有效波高的数据覆盖范围远大于卫星雷达高度计观测的数据覆盖范围,并证明了台风波场在大区域的发展。总的来说,这项研究和提出的模型为台风波和潜在风暴潮灾害的分析和预测提供了有用的信息。在“1329”台风“克罗莎”期间,由HY-2A微波散射计反演的风速和海洋风波分析成功获得并确定了有效波高。计算出的有效波高的数据覆盖范围远大于卫星雷达高度计观测的数据覆盖范围,并证明了台风波场在大区域的发展。总的来说,这项研究和提出的模型为台风波和潜在风暴潮灾害的分析和预测提供了有用的信息。
更新日期:2020-01-01
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