海湾流对热带层的影响
Shoshiro Minobe1, Akira Kuwano-Yoshida, Nobumasa Komori
1Department of Natural History Sciences, Graduate School of Science, Hokkaido University, Sapporo 060-0810, Japan. minobe@sci.hokudai.ac.jp
Nature
|March 14, 2008
概括
海湾流显著影响整个热带层,影响从地表到大气上层的天气模式. 这种热传输对气候变化和大西洋南部翻转循环有影响.
科学领域:
- 大气科学 大气科学
- 海洋学 海洋学 海洋学
- 气候科学 气候科学
背景情况:
- 海湾流转移大量的热量,影响天气,如循环生成和云形成.
- 它的长期气候影响和对海洋边界层以上的自由大气的影响尚未得到充分了解.
研究的目的:
- 为了研究海湾流对整个热带层的影响.
- 阐明海湾流影响大气过程的机制.
主要方法:
- 利用运营天气分析.
- 包含的卫星观测.
- 采用大气一般循环模型.
主要成果:
- 海湾流影响整个热带层,而不仅仅是海洋边界层.
- 海洋表面温度梯度导致风的汇聚,沿着电流形成降水带.
- 这个带的上升运动和云层形成延伸到上层热带层.
结论:
- 海湾流通过强迫行星波来影响当地和潜在的遥远大气区域.
- 了解这些机制对于气候变化研究至关重要,因为海湾流在大西洋南部翻转循环中的作用.
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