干旱区生态环境知识资源中心(Arid): Land Surface Influence on Convective Available Potential Energy (CAPE) Change during Interstorms

Arid

DOI	10.1175/JHM-D-22-0191.1
	Land Surface Influence on Convective Available Potential Energy (CAPE) Change during Interstorms
	Zhang, Lily N.; Gianotti, Daniel J. Short; Entekhabi, Dara
通讯作者	Zhang, LN
来源期刊	JOURNAL OF HYDROMETEOROLOGY
ISSN	1525-755X
EISSN	1525-7541
出版年	2023
卷号	24 期号:8 页码:1365-1376
英文摘要	Changes in surface water and energy balance can influence weather through interactions between the land and lower atmosphere. In convecting atmospheres, increases in convective available potential energy (CAPE) at the base of the column are driven by surface turbulent fluxes and can lead to precipitation. Using two global satellite datasets, we analyze the impact of surface energy balance partitioning on convective development by tracking CAPE over soil moisture drydowns (interstorms) during the summer, when land-atmosphere coupling is strongest. Our results show that the sign and magnitude of CAPE development during summertime drydowns depends on regional hydroclimate and initial soil moisture content. On average, CAPE increases between precipitation events over humid regions (e.g., the eastern United States) and decreases slightly over arid regions (e.g., the western United States). The soil moisture content at the start of a drydown was found to only impact CAPE evolution over arid regions, leading to greater decreases in CAPE when initial soil moisture content was high. The effect of these factors on CAPE can be explained by their influence principally on sur-face evaporation, demonstrating the importance of evaporative controls on CAPE and providing a basis for understanding the soil moisture-precipitation relationship, as well as land-atmosphere interaction as a whole.
英文关键词	Land surface Atmosphere-land interaction CAPE Soil moisture Surface fluxes Remote sensing
类型	Article
语种	英语
开放获取类型	Green Submitted, Bronze
收录类别	SCI-E
WOS记录号	WOS:001061678300001
WOS关键词	BOUNDARY LAYER INTERACTIONS ; SOIL-MOISTURE ; ATMOSPHERIC CONTROLS ; PART II ; FEEDBACKS ; PRECIPITATION ; INHIBITION ; FRAMEWORK
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397458
推荐引用方式 GB/T 7714	Zhang, Lily N.,Gianotti, Daniel J. Short,Entekhabi, Dara. Land Surface Influence on Convective Available Potential Energy (CAPE) Change during Interstorms[J],2023,24(8):1365-1376.
APA	Zhang, Lily N.,Gianotti, Daniel J. Short,&Entekhabi, Dara.(2023).Land Surface Influence on Convective Available Potential Energy (CAPE) Change during Interstorms.JOURNAL OF HYDROMETEOROLOGY,24(8),1365-1376.
MLA	Zhang, Lily N.,et al."Land Surface Influence on Convective Available Potential Energy (CAPE) Change during Interstorms".JOURNAL OF HYDROMETEOROLOGY 24.8(2023):1365-1376.