Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2021.105523 |
Kinematics and dynamics of the stratocumulus average diurnal dissipation process at Atacama Desert | |
Eduardo Luccini, Miguel Rivas | |
2021-02-15 | |
发表期刊 | Atmospheric Research |
出版年 | 2021 |
英文摘要 | Stratocumulus-type clouds constitute a stable system over the Southeast Pacific Ocean. Their phenomenology is well known particularly over the ocean, but a quantitative analysis of their diurnal cycle over the Pacific continental coastal desert strip of South America remained unaddressed. In this work, the stratocumulus average morning dissipation process at two sites in the Atacama Desert is documented through simple empirical mathematical equations. Based on the change rate analysis of the visible cloud optical depth (COD) inferred from solar irradiance measurements, the kinematics and the dynamics of the stratocumulus dissipation process is established, showing that it develops at an average constant “acceleration of dissipation” (d2COD/dt2) of about −3.3 h−2, equivalent to a cloud geometrical vertical thickness change at an average constant “acceleration of thinning” of about −40 m/h2. Towards the end of the dissipation process when the cloud deck vanishes, the average “velocity of dissipation” (dCOD/dt) and “velocity of thinning” round −16 h−1 and -175 m/h, respectively. A simple plane-parallel optical and geometrical model explains the average behavior of the phenomenon in the region on a wholly radiative base, with an absorbed fraction of solar irradiance acting as exclusive driver of the average dissipation process. About 13 kJ/m2 of net irradiation is needed to change the COD of the stratocumulus deck by one unit. The progressive morning cloud dissipation from the land on the east towards the sea on the west is evidenced. The analysis of the cloud effective transmittance and a full set of checks, including test of robustness, support these results and their interpretation. |
领域 | 地球科学 |
URL | 查看原文 |
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/315575 |
专题 | 地球科学 |
推荐引用方式 GB/T 7714 | Eduardo Luccini, Miguel Rivas. Kinematics and dynamics of the stratocumulus average diurnal dissipation process at Atacama Desert[J]. Atmospheric Research,2021. |
APA | Eduardo Luccini, Miguel Rivas.(2021).Kinematics and dynamics of the stratocumulus average diurnal dissipation process at Atacama Desert.Atmospheric Research. |
MLA | Eduardo Luccini, Miguel Rivas."Kinematics and dynamics of the stratocumulus average diurnal dissipation process at Atacama Desert".Atmospheric Research (2021). |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
查看访问统计 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[Eduardo Luccini, Miguel Rivas]的文章 |
百度学术 |
百度学术中相似的文章 |
[Eduardo Luccini, Miguel Rivas]的文章 |
必应学术 |
必应学术中相似的文章 |
[Eduardo Luccini, Miguel Rivas]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
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