破浪在海洋表面的分布
W Kendall Melville1, Peter Matusov
1Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California 92093-0213, USA. kmelville@ucsd.edu
Nature
|May 3, 2002
概括
对于空海交换至关重要的海洋波浪断裂,通过新的空中成像可以更好地理解. 波浪破裂长度尺度与风速立方,混合由低速度,短波长破裂事件主导.
科学领域:
- 海洋学 海洋学 海洋学
- 流体动力学 流体动力学
- 大气科学 大气科学
背景情况:
- 表面波对于大气和海洋之间的质量,动量和能量交换至关重要.
- 波浪破裂,一个关键的消散过程,影响空海流量,但量化不够好.
- 了解波浪断裂对于气候和天气建模至关重要.
研究的目的:
- 量化和统计描述与波浪断裂相关的海面过程.
- 调查风速与突破波浪阵线的特征之间的关系.
- 为了确定影响海洋表面混合的占主导地位的波折特征.
主要方法:
- 利用空中成像和先进的分析技术来捕捉和研究波浪破裂事件.
- 对破浪前线及其速度的测量进行了统计分析.
- 量化了受波浪破坏影响的海面面积.
主要成果:
- 每个单位面积的突破波面的长度与风速立方体相比.
- 在测量范围内,每单位面积的突破前端长度是前端速度的指数函数.
- 低速度,短波长的波浪断裂事件占据了海洋表面混合的部分.
结论:
- 这项研究提供了波浪破裂动态的新统计描述.
- 这些发现为波浪断裂提供了更好的量化,这对于精确的空海流量建模至关重要.
- 了解不同波浪破裂尺度在混合中的作用对于气候科学至关重要.
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