概括
西萨特的合成光圈雷达 (SAR) 可以检测海洋波. 波长和方向的SAR测量显示与阿拉斯加湾的表面和飞机数据有很好的一致性.
科学领域:
- 海洋学 海洋学 海洋学
- 遥感 遥感 遥感 遥感
- 地质物理学 地质物理学
背景情况:
- 海洋波探测对于海上安全和研究至关重要.
- 合成孔径雷达 (SAR) 为全球海洋波浪监测提供了一个潜在的方法.
- 以前基于卫星的雷达对波浪的测量能力是有限的.
研究的目的:
- 评估Seasat SAR用于检测和测量海洋波的能力.
- 为了将SAR衍生波数据与现场测量进行比较.
主要方法:
- 利用了Seasat卫星在阿拉斯加湾上空五次飞行的数据.
- 将Seasat的SAR测量与同时使用的地面和飞机波浪数据进行比较.
- 专注于波长为100-250米的波浪,波浪高度为2-3,5米的重要波浪.
主要成果:
- 西萨特SAR显示了检测海洋波的能力.
- 在波长中达成约-15%的协议.
- 观察到波浪方向在大约+/- 25度内的一致性.
- 对于波主要传播在卫星轨道上的波,结果是一致的.
结论:
- 海洋探测器 (Seasat SAR) 是一种可行的工具,用于初步评估海洋波浪.
- 该研究验证了SAR在特定海水状态条件下对波浪监测的潜力.
- 进一步的研究可以完善SAR在各种海洋环境中的应用.
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