干旱区生态环境知识资源中心(Arid): The synoptic skill of aerosol optical depth and angstrom exponent levels over the Mediterranean Basin

Arid

DOI	10.1002/joc.6931
	The synoptic skill of aerosol optical depth and angstrom exponent levels over the Mediterranean Basin
	Bodenheimer, Shalev; Nirel, Ronit; Lensky, Itamar M.; Dayan, Uri
通讯作者	Bodenheimer, S
来源期刊	INTERNATIONAL JOURNAL OF CLIMATOLOGY
ISSN	0899-8418
EISSN	1097-0088
英文摘要	North African desert dust is the dominant aerosol type transported over the Mediterranean Basin (MB), followed by marine, anthropogenic, and biomass-burning aerosol types. This basin is characterized by intense synoptic scale activity that has a substantial impact on the distribution of aerosols. A climatological research at a spatial resolution of 1 degrees x 1 degrees over the MB for the years 2000-2016 is presented here. We used a circulation to environment approach to examine the linkage between three objective circulation type classifications (CTCs) and two outcomes: aerosol optical depth (AOD) and Angstrom exponent (AE). This linkage, hereafter referred to as the 'synoptic skill', was assessed using tailored autoregressive linear regression and logistic models. We calculated (a) the total synoptic skill, accounting for the contribution of synoptic circulation type and the autoregressive components to AOD variability, and (b) the net synoptic skill, reflecting the contribution of the circulation type only. This novel approach enabled to differentiate between AOD distribution as controlled by the prevailing synoptic conditions to the one affected by climatic diurnal processes. Results for AOD showed maximal total synoptic skill during fall and summer (R-2 similar to 0.3) with highest values over parts of North Africa and the Middle East (R-2 > 0.4). The net synoptic skill was highest (R-2 similar to 0.1) during winter and lowest (R-2 similar to 0.05) during summer. Geographic distribution showed low net values over North Africa and the Middle East (R-2 < 0.06) and higher values over the Mediterranean Sea (R-2 similar to 0.1). For AE, the synoptic skill had a significant signature over Southern Europe during winter months (c-statistic > 0.8). No single classification was superior in terms of mean synoptic skill, although for specific seasons and geographical locations one or the other of the three classifications showed higher performance. This study reflects some more evidences on the net contribution of CTCs to the distribution of AOD and AE over the MB.
英文关键词	angstrom exponent AOD circulation to environment circulation type classifications dust Mediterranean Basin synoptic skill
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000592067800001
WOS关键词	AFRICAN DUST OUTBREAKS ; CLIMATOLOGY ; CIRCULATION ; PRODUCTS ; PATTERNS ; PM10 ; REANALYSIS ; ALGORITHM ; TRENDS ; NORTH
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
来源机构	Hebrew University of Jerusalem
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/328536
作者单位	[Bodenheimer, Shalev; Dayan, Uri] Hebrew Univ Jerusalem, Dept Geog, Jerusalem, Israel; [Nirel, Ronit] Hebrew Univ Jerusalem, Dept Stat & Data Sci, Jerusalem, Israel; [Lensky, Itamar M.] Bar Ilan Univ, Dept Geog & Environm, Ramat Gan, Israel
推荐引用方式 GB/T 7714	Bodenheimer, Shalev,Nirel, Ronit,Lensky, Itamar M.,et al. The synoptic skill of aerosol optical depth and angstrom exponent levels over the Mediterranean Basin[J]. Hebrew University of Jerusalem.
APA	Bodenheimer, Shalev,Nirel, Ronit,Lensky, Itamar M.,&Dayan, Uri.
MLA	Bodenheimer, Shalev,et al."The synoptic skill of aerosol optical depth and angstrom exponent levels over the Mediterranean Basin".INTERNATIONAL JOURNAL OF CLIMATOLOGY