Responses of Tropical and Subtropical High-Cloud Statistics to Global Warming

Responses of Tropical and Subtropical High-Cloud Statistics to Global Warming
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热带和副热带高云统计对全球变暖的响应

DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
Tatsuya Seiki
Tatsuya Seiki
中科院分区：
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文献类型：
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作者：
A. Noda;M. Satoh;Y. Yamada;C. Kodama;Tatsuya Seiki

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摘要：对来自全球高分辨率、非静水模拟的数据进行了分析，涵盖 1 年周期、水平网格大小为 7 公里和 14 公里，以评估高云对全球变暖的响应。结果表明，在较温暖的大气中，高云量急剧增加，相关的长波（LW）云辐射强迫（CRF）平均增加。为了更好地了解高云对气候变化的响应，分析了从模型获得的高云大小的地理分布，并与观测结果进行了比较。在较温暖的大气中，长波和短波 (SW) 分量的每个云对 CRF 的贡献都会减少。然而，由于几乎所有云大小类别中高云数量的显着增加，模拟中 LW 和 SW CRF 的幅度都增加了。特别是，较小云数量的增加对 CRF 变化的影响更大。还发现冰和液体...
AbstractData from global high-resolution, nonhydrostatic simulations, covering a 1-yr period and with horizontal grid sizes of 7 and 14 km, were analyzed to evaluate the response of high cloud to global warming. The results indicate that, in a warmer atmosphere, high-cloud cover increases robustly and associated longwave (LW) cloud radiative forcing (CRF) increases on average. To develop a better understanding of high-cloud responses to climate change, the geographical distribution of high-cloud size obtained from the model was analyzed and compared with observations. In warmer atmospheres, the contribution per cloud to CRF decreases for both the LW and shortwave (SW) components. However, because of significant increases in the numbers of high clouds in almost all cloud size categories, the magnitude of both LW and SW CRF increases in the simulations. In particular, the contribution from an increase in the number of smaller clouds has more effect on the CRF change. It was also found that the ice and liqui...