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| DOI | 10.1088/1748-9326/ab4031 |
| Are global tropical cyclones moving slower in a warming climate? | |
| Chan K.T.F. | |
| 发表日期 | 2019 |
| ISSN | 17489318 |
| 卷号 | 14期号:10 |
| 英文摘要 | The local tropical-cyclone-related rainfall totals largely depend on the rain rate near the center and the translation speed of a tropical cyclone. Understanding how they respond to a changing climate has been a hot topic. A recent astounding study reported a 10% slowdown in global tropical-cyclone translation speed over the past 68 years (1949-2016) and implicitly related this to the weakening of tropical circulation forced by the anthropogenic warming. It thereby suggested that it might result in more local rainfall totals in a warming climate. However, here this study shows that no robust and significant observational and modeling evidences reveal that they are. The data artefacts introduced by the changes in measurement practices, particularly the introduction of satellite capabilities since the 1970s, are likely the main source of heterogeneities leading to such disagreement. The global slowdown of tropical-cyclone translation speed becomes indeterminate and a significant global speedup trend is even found over land if the records in more reliable satellite sensing era period starting from 1970 are examined, where this period is also the most pronounced warming period in the last half-century. The relationship between the slowdown of tropical cyclones and anthropogenic warming is therefore not apparent and the relevant potential increase in local rainfall totals in the future warming climate is suspicious. © 2019 The Author(s). Published by IOP Publishing Ltd. |
| 英文关键词 | climate; movement; translation speed; trend; tropical cyclone; warming |
| 语种 | 英语 |
| scopus关键词 | Hurricanes; Rain; Storms; Translation (languages); Anthropogenic warming; Changing climate; Measurement practices; Rain rates; Satellite sensing; Translation speed; Tropical cyclone; Warming climate; Tropics; anthropogenic effect; climate change; global change; global warming; rainfall; satellite imagery; tropical cyclone |
| 来源期刊 | Environmental Research Letters
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/154346 |
| 作者单位 | School of Atmospheric Sciences, Guangdong Province Key Laboratory for Climate Change and Natural Disaster Studies, Sun Yat-sen University, Zhuhai, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China |
| 推荐引用方式 GB/T 7714 | Chan K.T.F.. Are global tropical cyclones moving slower in a warming climate?[J],2019,14(10). |
| APA | Chan K.T.F..(2019).Are global tropical cyclones moving slower in a warming climate?.Environmental Research Letters,14(10). |
| MLA | Chan K.T.F.."Are global tropical cyclones moving slower in a warming climate?".Environmental Research Letters 14.10(2019). |
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