气候变化领域集成服务门户(CCPortal): Establishment of an analytical model for remote sensing of typicalstratocumulus cloud profiles under various precipitation and entrainmentconditions

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DOI	10.5194/acp-23-2729-2023
	Establishment of an analytical model for remote sensing of typicalstratocumulus cloud profiles under various precipitation and entrainmentconditions
	Shang, Huazhe; Hioki, Souichiro; Penide, Guillaume; Cornet, Celine; Letu, Husi; Riedi, Jerome
发表日期	2023
ISSN	1680-7316
EISSN	1680-7324
起始页码	2729
结束页码	2746
卷号	23 期号:4 页码:18
英文摘要	Structural patterns of cloud effective radius (ER) and liquid water content (LWC) profiles are essential variables of cloud lifecycle and precipitation processes, while observing cloud profiles from passive remote-sensing sensors remains highly challenging. Understanding whether there are typical structural patterns of ER and LWC profiles in liquid clouds and how they are linked to cloud entrainment or precipitating status is critical in developing algorithms to derive cloud profiles from passive satellite sensors. This study aims to address these questions and provide a preliminary foundation for the development of liquid cloud profile retrievals for the Multi-viewing, Multi-channel and Multi-polarization Imaging (3MI) sensor aboard the European Organization for the Exploitation of Meteorological Satellites (EUMETSAT) Polar System-Second Generation (EPS-SG) satellite, which is scheduled to be launched in 2025. Firstly, we simulate a large ensemble of stratocumulus cloud profiles using the Colorado State University (CSU) Regional Atmospheric Modeling System (RAMS). The empirical orthogonal function (EOF) analysis is adopted to describe the shape of simulated profiles with a limited number of elemental profile variations. Our results indicate that the first three EOFs of LWC and ER profiles can explain > 90 % of LWC and ER profiles. The profiles are divided into four prominent patterns and all of these patterns can be simplified as triangle-shaped polylines. The frequency of these four patterns is found to relate to intensities of the cloud-top entrainment and precipitation. Based on these analyses, we propose a simplified triangle-shaped cloud profile parameterization scheme allowing us to represent these main patterns of LWC and ER. This simple yet physically realistic analytical model of cloud profiles is expected to facilitate the representation of cloud properties in advanced retrieval algorithms such as those developed for the 3MI/EPS-SG.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000940533300001
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/273663
作者单位	Chinese Academy of Sciences; Centre National de la Recherche Scientifique (CNRS); Universite de Lille - ISITE; Universite de Lille
推荐引用方式 GB/T 7714	Shang, Huazhe,Hioki, Souichiro,Penide, Guillaume,et al. Establishment of an analytical model for remote sensing of typicalstratocumulus cloud profiles under various precipitation and entrainmentconditions[J],2023,23(4):18.
APA	Shang, Huazhe,Hioki, Souichiro,Penide, Guillaume,Cornet, Celine,Letu, Husi,&Riedi, Jerome.(2023).Establishment of an analytical model for remote sensing of typicalstratocumulus cloud profiles under various precipitation and entrainmentconditions.ATMOSPHERIC CHEMISTRY AND PHYSICS,23(4),18.
MLA	Shang, Huazhe,et al."Establishment of an analytical model for remote sensing of typicalstratocumulus cloud profiles under various precipitation and entrainmentconditions".ATMOSPHERIC CHEMISTRY AND PHYSICS 23.4(2023):18.