通过大气热发动机向极地传送热量
Leon Barry1, George C Craig, John Thuburn
1Department of Meteorology, University of Reading, Earley Gats, Whiteknights, UK.
Nature
|February 15, 2002
概括
中度风暴将热量从赤道运送到极地. 一个新的热发动机理论解释了风暴强度和旋速度,改善了气候模型和风暴预测.
科学领域:
- 大气科学 大气科学
- 气候动力学 气候动力学
- 气象学 天气学
背景情况:
- 大气热传输从赤道到两极主要是由中度风暴驱动的.
- 对于极向热传输的现有理论缺乏关于旋尺度的共识.
- 中度风暴对于地球气候调节至关重要.
研究的目的:
- 开发一个新的理论框架,用于大气热传输的中度风暴.
- 提出一个新的热发动机模型,用于旋转的动能发电.
- 通过气候模拟来验证新的和现有的旋尺度.
主要方法:
- 用数值气候模拟来研究的特性.
- 强迫和边界条件被改变,以改变的特征.
- 拟议的速度和长度尺度与模拟结果进行了测试.
主要成果:
- 这项研究引入了一个新的速度尺度,用于的动能发电.
- 发现埃迪速度与拟议的新尺度相关.
- 埃迪的大小始终遵循已建立的莱恩斯β尺度.
结论:
- 热发动机理论为大气热传输提供了一个新的视角.
- 这些发现为估计中度风暴强度提供了更简单的方法.
- 这项研究促进了对基本气候过程和风暴动态的理解.
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