干旱区生态环境知识资源中心(Arid): Synoptic Impacts on the Occurrence of Mesoscale Boundaries and Their Associated Convection Over an Area of Sharp Vegetation Contrast

Arid

DOI	10.1029/2022GL099449
	Synoptic Impacts on the Occurrence of Mesoscale Boundaries and Their Associated Convection Over an Area of Sharp Vegetation Contrast
	Huang, Yipeng; Meng, Zhiyong; Zhang, Murong
通讯作者	Meng, ZY
来源期刊	GEOPHYSICAL RESEARCH LETTERS
ISSN	0094-8276
EISSN	1944-8007
出版年	2022
卷号	49 期号:16
英文摘要	This study examined synoptic impacts on the occurrence of boundaries and their associated convection during summers from 2012 to 2016 over Hetao Irrigation District in North China, where there is a sharp vegetation contrast. Objective synoptic-pattern classification showed that boundary days, especially convective boundary days, were more frequent under a mid-troposphere high-pressure ridge or pre-trough pattern. Such patterns featured a warmer near-surface environment, stronger southerly winds, larger convective available potential energy (CAPE), and low-level moisture convergence. Relative to unfavorable patterns, boundaries under favorable patterns showed more apparent arid-area dependence, more dominant orientation along the line of vegetation contrast, more moved northward, formed and matured earlier, and triggered convection more dispersedly. Under each pattern, compared with nonboundary days, boundary days possessed higher near-surface temperatures and stronger ambient flows against the vegetation-contrast-induced circulations near the surface; plus, compared with nonconvective boundary days, convective boundary days possessed stronger updrafts, larger CAPE, and higher moisture and K index.
英文关键词	boundaries convection initiation synoptic impact vegetation contrast synoptic pattern
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000848200400001
WOS关键词	LAKE BREEZES ; THUNDERSTORM INITIATION ; SCALE FLOW ; SEA ; CONVERGENCE ; EVOLUTION ; FEATURES ; STORMS
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392952
推荐引用方式 GB/T 7714	Huang, Yipeng,Meng, Zhiyong,Zhang, Murong. Synoptic Impacts on the Occurrence of Mesoscale Boundaries and Their Associated Convection Over an Area of Sharp Vegetation Contrast[J],2022,49(16).
APA	Huang, Yipeng,Meng, Zhiyong,&Zhang, Murong.(2022).Synoptic Impacts on the Occurrence of Mesoscale Boundaries and Their Associated Convection Over an Area of Sharp Vegetation Contrast.GEOPHYSICAL RESEARCH LETTERS,49(16).
MLA	Huang, Yipeng,et al."Synoptic Impacts on the Occurrence of Mesoscale Boundaries and Their Associated Convection Over an Area of Sharp Vegetation Contrast".GEOPHYSICAL RESEARCH LETTERS 49.16(2022).