Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019JD030538 |
Rapidly Evolving Cirrus Clouds Modulated by Convectively Generated Gravity Waves | |
Prasad, Abhnil A.1; Sherwood, Steven C.1; Reeder, Michael J.2; Lane, Todd P.3 | |
2019-07-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
![]() |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
卷号 | 124期号:13页码:7327-7338 |
文章类型 | Article |
语种 | 英语 |
国家 | Australia |
英文摘要 | Cirrus clouds can strongly affect Earth's radiation balance, but questions remain about their growth mechanisms and rates. Here we show that gravity (buoyancy) waves generated by a storm in Northern Australia on 13 November 2015 caused an observable rippling effect on cirrus clouds up to 1,000km away, as seen by the recently launched Himawari-8/9 geostationary satellite. Regional model simulations reproduce the propagation speed of the wave, which agrees with theoretical predictions, and show that the wave amplitude and timing near the tropopause can account for the cirrus modulation. The observed cirrus reach peak optical depths of order 0.3-1.0 and appear roughly in phase with the arrival of the relative humidity maximum, providing new evidence that cirrus clouds can respond rapidly (<30min) to environmental lifting. Moreover, the edge of a thick anvil cloud attached to the storm itself is observed to expand at the same speed as the wave, showing that the lifting mechanism can also apply to optically thicker ice clouds close to convective centers. |
英文关键词 | deep convection gravity waves cirrus troposphere tropics nucleation |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000477580200039 |
WOS关键词 | HOMOGENEOUS ICE NUCLEATION ; TROPICAL TROPOPAUSE ; SQUALL-LINE ; RADIATIVE-TRANSFER ; MODEL ; DEEP ; PARAMETERIZATION ; SIMULATIONS ; DEHYDRATION ; MECHANISMS |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/185149 |
专题 | 气候变化 |
作者单位 | 1.Univ New South Wales, Climate Change Res Ctr, Sydney, NSW, Australia; 2.Monash Univ, Sch Earth Atmosphere & Environm, Melbourne, Vic, Australia; 3.Univ Melbourne, Sch Earth Sci, Melbourne, Vic, Australia |
推荐引用方式 GB/T 7714 | Prasad, Abhnil A.,Sherwood, Steven C.,Reeder, Michael J.,et al. Rapidly Evolving Cirrus Clouds Modulated by Convectively Generated Gravity Waves[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(13):7327-7338. |
APA | Prasad, Abhnil A.,Sherwood, Steven C.,Reeder, Michael J.,&Lane, Todd P..(2019).Rapidly Evolving Cirrus Clouds Modulated by Convectively Generated Gravity Waves.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(13),7327-7338. |
MLA | Prasad, Abhnil A.,et al."Rapidly Evolving Cirrus Clouds Modulated by Convectively Generated Gravity Waves".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.13(2019):7327-7338. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论