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在二氧化碳加热的气候中,风强度的模拟增加
1Geophysical Fluid Dynamics Laboratory/National Oceanic and Atmospheric Administration, Post Office Box 308, Princeton, NJ 08542, USA.
概括
温室气体引起的全球变暖可能会加剧风. 气候变暖模拟显示,更强的风具有更高的风速和更低的中央压力,从而增加了风险.
科学领域:
- 大气科学 大气科学
- 气候建模 气候建模
- 气象学 天气学
背景情况:
- 风造成重大财产损失和生命损失.
- 了解全球变暖对风强度的影响至关重要.
研究的目的:
- 研究气候变暖如何影响风强度.
- 在高CO2条件下模拟风特征的变化.
主要方法:
- 利用一个区域性,高分辨率的风预测模型.
- 在当前和高CO2气候条件下比较51个西太平洋风暴事件.
- 从全球气候模型中整合了大规模的初始条件.
主要成果:
- 模拟的风表现出强度增加,海面温度上升2.2°C.
- 风速增加了3-7米/秒 (5-12%).风速增加了3-7米/秒 (5-12%).
- 中央表面压力下降了7-20毫巴.
结论:
- 预计气候变暖将加剧风的发生.
- 这些加剧的风暴对财产和人类生命带来了更大的风险.
- 进一步研究气候变化对极端天气事件的影响是有必要的.
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