干旱区生态环境知识资源中心(Arid): Synoptic attributions of extreme precipitation in the Atacama Desert (Chile)

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DOI	10.1007/s00382-020-05455-4
	Synoptic attributions of extreme precipitation in the Atacama Desert (Chile)
	Meseguer-Ruiz, Oliver; Ponce-Philimon, Paulina, I; Baltazar, Alexis; Guijarro, Jose A.; Serrano-Notivoli, Roberto; Olcina Cantos, Jorge; Martin-Vide, Javier; Sarricolea, Pablo
通讯作者	Meseguer-Ruiz, O
来源期刊	CLIMATE DYNAMICS
ISSN	0930-7575
EISSN	1432-0894
出版年	2020
卷号	55 期号:11-12 页码:3431-3444
英文摘要	Northern Chile is a region characterised by an extremely dry climate; however, there is a brief rainy season from December to March (austral summer), mainly above 3000 m a.s.l. It is interesting to consider where the humid air masses that generate such rain come from. For this purpose, daily precipitation data from 161 meteorological stations located in this area (18 degrees S-19 degrees S) were considered, and four clusters formed by k-means clustering. For each cluster, days of extreme precipitation (above 90th percentile) were selected to obtain flow strength (F), direction (D), and vorticity (Z) for each event according to the Jenkinson and Collison (JC) method. The back trajectory, for the previous 72 h, of air masses affecting the centroid of each cluster was determined by means of the Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) model. The analyses were carried out at sea level (1013 hPa) and in the middle (500 hPa) and upper (250 hPa) troposphere. Surface circulation was not a determining factor in the occurrence of extreme events, but it did influence circulation at 500 and 250 hPa. For stations located in the northern Altiplano, moisture advection from the Amazon basin is evident due to the configuration of the Bolivian high-an upper level anticyclone that develops over the Bolivian Altiplano during austral summer. For stations located in the southern part of the study area, the main source of moisture is the Pacific Ocean, and the weather is related to the arrival of frontal systems and to the configuration of cut-off low pressure systems in the mid-troposphere.
英文关键词	Back trajectory Extreme precipitation Jenkinson and Collison method HYSPLIT model Northern Chile
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000567765400004
WOS关键词	CIRCULATION WEATHER TYPES ; RAINFALL VARIABILITY ; CLIMATE-CHANGE ; SEASONAL PRECIPITATION ; SPATIAL VARIABILITY ; SOUTH-AMERICA ; EVENTS ; DYNAMICS ; ANOMALIES ; OROGRAPHY
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/2XILL650/326167
作者单位	[Meseguer-Ruiz, Oliver; Ponce-Philimon, Paulina, I; Baltazar, Alexis] Univ Tarapaca, Dept Ciencias Hist & Geog, 18 Septiembre, Arica 2222, Chile; [Guijarro, Jose A.] State Meteorol Agcy AEMET, Balearic Isl Off, Palma De Mallorca, Spain; [Serrano-Notivoli, Roberto] Consejo Super Invest Cient EEAD CSIC, Estn Expt Aula, Avda Montanana 1005, Zaragoza, Spain; [Olcina Cantos, Jorge] Univ Alicante, Inst Interuniv Geog, Edificio Inst Univ,Apartado Correos 99, Alicante 03080, Spain; [Martin-Vide, Javier] Univ Barcelona, Dept Geog, Montalegre 6-8, Barcelona 08001, Spain; [Sarricolea, Pablo] Univ Chile, Dept Geog, Portugal 84, Santiago, Chile
推荐引用方式 GB/T 7714	Meseguer-Ruiz, Oliver,Ponce-Philimon, Paulina, I,Baltazar, Alexis,et al. Synoptic attributions of extreme precipitation in the Atacama Desert (Chile)[J],2020,55(11-12):3431-3444.
APA	Meseguer-Ruiz, Oliver.,Ponce-Philimon, Paulina, I.,Baltazar, Alexis.,Guijarro, Jose A..,Serrano-Notivoli, Roberto.,...&Sarricolea, Pablo.(2020).Synoptic attributions of extreme precipitation in the Atacama Desert (Chile).CLIMATE DYNAMICS,55(11-12),3431-3444.
MLA	Meseguer-Ruiz, Oliver,et al."Synoptic attributions of extreme precipitation in the Atacama Desert (Chile)".CLIMATE DYNAMICS 55.11-12(2020):3431-3444.