气候变化领域集成服务门户(CCPortal): On the connection between large-scale atmospheric circulation and winter GPCP precipitation over the Mediterranean region for the period 1980-2017

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DOI	10.1016/j.atmosres.2019.104714
	On the connection between large-scale atmospheric circulation and winter GPCP precipitation over the Mediterranean region for the period 1980-2017
	Kotsias G.; Lolis C.J.; Hatzianastassiou N.; Levizzani V.; Bartzokas A.
发表日期	2020
ISSN	0169-8095
卷号	233
英文摘要	The influence of the large-scale atmospheric circulation on winter precipitation over the Mediterranean region is studied with the use of monthly 2.5° × 2.5° ERA-Interim 500 and 1000 hPa geopotential heights and GPCP-v2.3 precipitation, for the period 1980–2017. At first, Principal Component Analysis (PCA) is applied both to geopotential heights and precipitation datasets and the main modes of inter-annual variations are found. Then, these modes are investigated through Canonical Correlation Analysis (CCA) to identify the centers of action of the lower and the middle troposphere that control precipitation variability over the Mediterranean region. Three statistically significant canonical pairs are found. The first one, in the North Atlantic, controls precipitation over western Asia Minor, northern Libya and the western Iberian Peninsula. Τhe second mode corresponds to the see-saw between Greenland and central Europe and controls precipitation over the northern Mediterranean region. The third one is located north of Britain and controls precipitation over NW Africa and northern France. For each canonical pair, the mean geopotential heights and precipitation anomaly patterns for the four (10%) years with the highest and the lowest canonical scores are constructed, confirming the results of CCA. Moreover, the correlation between the canonical scores and the indices of the large-scale atmospheric oscillations, namely the North Atlantic Oscillation (NAO), the Arctic Oscillation (AO), the North Sea – Caspian Pattern (NCP) and the East Atlantic/West Russia Pattern (EA/WR), was studied. © 2019 Elsevier B.V.
英文关键词	Atmospheric circulation; Canonical Correlation Analysis; GPCP precipitation; Mediterranean
学科领域	Atmospheric pressure; Climatology; Correlation methods; Precipitation (meteorology); Atmospheric circulation; Atmospheric oscillations; Canonical correlation analysis; Interannual variation; Mediterranean; North Atlantic oscillations; Precipitation anomalies; Precipitation variability; Principal component analysis; Arctic Oscillation; atmospheric circulation; atmospheric dynamics; correlation; North Atlantic Oscillation; precipitation (climatology); troposphere; Atlantic Ocean; Atlantic Ocean (North); Mediterranean Region
语种	英语
scopus关键词	Atmospheric pressure; Climatology; Correlation methods; Precipitation (meteorology); Atmospheric circulation; Atmospheric oscillations; Canonical correlation analysis; Interannual variation; Mediterranean; North Atlantic oscillations; Precipitation anomalies; Precipitation variability; Principal component analysis; Arctic Oscillation; atmospheric circulation; atmospheric dynamics; correlation; North Atlantic Oscillation; precipitation (climatology); troposphere; Atlantic Ocean; Atlantic Ocean (North); Mediterranean Region
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/120547
作者单位	Laboratory of Meteorology, Department of Physics, University of Ioannina, Ioannina, 45110, Greece; National Research Council of Italy, Institute of Atmospheric Sciences and Climate (CNR-ISAC), Bologna, Italy
推荐引用方式 GB/T 7714	Kotsias G.,Lolis C.J.,Hatzianastassiou N.,et al. On the connection between large-scale atmospheric circulation and winter GPCP precipitation over the Mediterranean region for the period 1980-2017[J],2020,233.
APA	Kotsias G.,Lolis C.J.,Hatzianastassiou N.,Levizzani V.,&Bartzokas A..(2020).On the connection between large-scale atmospheric circulation and winter GPCP precipitation over the Mediterranean region for the period 1980-2017.Atmospheric Research,233.
MLA	Kotsias G.,et al."On the connection between large-scale atmospheric circulation and winter GPCP precipitation over the Mediterranean region for the period 1980-2017".Atmospheric Research 233(2020).