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| DOI | 10.1029/2020JD034465 |
| Sahelian Heat Wave Characterization From Observational Data Sets | |
| Bouniol D.; Guichard F.; Barbier J.; Couvreux F.; Roehrig R. | |
| 发表日期 | 2021 |
| ISSN | 2169897X |
| 卷号 | 126期号:11 |
| 英文摘要 | This paper makes use of spaceborne observational data sets in order to characterize radiative processes involved in spring time heat waves in the Sahel. Spring corresponds to the hottest period of the year, with a high aerosol load, a gradual moistening, and the presence of clouds contributing to greenhouse effect. Heat waves are defined as synoptic events that have a large spatial extent and a duration longer than 3 days. Two types of heat waves are studied: daytime heat waves, detected with the daily maximum temperature and nighttime heat waves, detected with the daily minimum temperature. Daytime heat waves correspond to situations where cloud optical thickness is lower than the climatology and a large number of these situations are also associated with a lower aerosol load and a drier atmosphere. Nighttime heat waves correspond to a moister atmosphere compared to the climatology. In a large fraction of them, an increase in aerosol loading is also observed. This study, only based on observational data sets, highlights the subtle but different radiative balance at play in both types of events. © 2021. American Geophysical Union. All Rights Reserved. |
| 英文关键词 | heat wave; observations; radiation budget; West Africa |
| 语种 | 英语 |
| 来源期刊 | Journal of Geophysical Research: Atmospheres
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| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/185158 |
| 作者单位 | CNRM, Université de Toulouse, Météo-France, CNRS, Toulouse, France |
| 推荐引用方式 GB/T 7714 | Bouniol D.,Guichard F.,Barbier J.,et al. Sahelian Heat Wave Characterization From Observational Data Sets[J],2021,126(11). |
| APA | Bouniol D.,Guichard F.,Barbier J.,Couvreux F.,&Roehrig R..(2021).Sahelian Heat Wave Characterization From Observational Data Sets.Journal of Geophysical Research: Atmospheres,126(11). |
| MLA | Bouniol D.,et al."Sahelian Heat Wave Characterization From Observational Data Sets".Journal of Geophysical Research: Atmospheres 126.11(2021). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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