| 基于卫星测高和卫星遥感海面温度探测的南海中尺度涡旋对比分析 |
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| 引用本文： | 李惠玲,郭金运,文汉江.基于卫星测高和卫星遥感海面温度探测的南海中尺度涡旋对比分析[J].大地测量与地球动力学,2018,38(11):1170-1173. |
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| 作者姓名： | 李惠玲 郭金运 文汉江 |
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| 摘 要： | 基于海表面温度数据和海面高度异常数据，采用矢量几何法提取南海的中尺度涡旋并进行统计分析。结果显示，从海表面温度和海面高度异常数据都可以提取涡旋，两者的提取能力差异很小。由海表面温度数据可以提取较小尺度的涡旋，但跟踪涡旋时存在不稳定性；由海面高度异常数据虽然不能检测到较小尺度的涡旋，但跟踪涡旋相对稳定。两种数据所提取涡旋的时间和空间分布规律具有一致性。
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| 关 键 词： | 中尺度涡旋 海表面温度 海面高度异常 南海 矢量几何法 |
Contrastive Analysis of Mesoscale Eddies in the South China Sea: Based on Satellite Altimetry and Satellite Remote Sensing Sea Surface Temperature |
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| LI Huiling,GUO Jinyun,WEN Hanjiang.Contrastive Analysis of Mesoscale Eddies in the South China Sea: Based on Satellite Altimetry and Satellite Remote Sensing Sea Surface Temperature[J].Journal of Geodesy and Geodynamics,2018,38(11):1170-1173. |
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| Authors: | LI Huiling GUO Jinyun WEN Hanjiang |
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| Abstract: | The mesoscale eddies in the South China Sea are extracted and analyzed by geometric velocity method based on sea surface temperature data and sea level anomaly data. The results show that both sea surface temperature and sea level anomaly data can extract eddies; the two extraction capacities are basically the same but there are differences: sea surface temperature data can extract small scale eddies but show instability when tracking eddies, while sea level anomaly data cannot detect small scale eddies but shows stability when tracking eddies. In addition, the temporal and spatial distribution of these eddies extracted by the two data are consistent. |
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| Keywords: | mesoscale eddy sea surface temperature sea level anomaly south China sea geometric velocity method |
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