气候变化领域集成服务门户(CCPortal): Recent climate trends over Greece

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DOI	10.1016/j.atmosres.2019.104623
	Recent climate trends over Greece
	Tzanis C.G.; Koutsogiannis I.; Philippopoulos K.; Deligiorgi D.
发表日期	2019
ISSN	0169-8095
卷号	230
英文摘要	Temperature and humidity play a key role in climate change assessment. This study focuses on the analysis of surface and upper-air temperature and humidity trends for a domain centered over the Greek region in the Eastern Mediterranean. The main purpose of this work is to investigate whether possible changes in the climate of the greater Greek region exist over the recent years. ERA-Interim reanalysis, surface and radiosonde observational data of air temperature, specific and relative humidity are used for a 39-year period (1979–2017). Through the spatial distribution of their trends, at different atmospheric pressure levels and seasons, it is possible to detect statistically significant spatial and temporal changes in the troposphere and stratosphere above the examined domain. Statistically significant warming trends at the 99% level are found at the surface over land and at the 95% level over sea during spring and summer for Greece; less pronounced and more sparsely distributed trends are identified during autumn and winter. Additionally, positive trends prevail throughout the entire extent of the troposphere, more pronounced during summer, whereas the stratosphere is characterized by negative trends. Trends derived from the reanalysis and observational data exhibit high degree of correlation both at surface and at upper atmospheric levels. In accordance, specific humidity has generally increased in the lower troposphere. Relative humidity time series demonstrate trends, which vary seasonally and geographically, due to its relationship with specific humidity and temperature. © 2019 Elsevier B.V.
英文关键词	Air temperature; Climate trends; Greece; Humidity; Stratosphere; Troposphere
语种	英语
scopus关键词	Atmospheric humidity; Atmospheric pressure; Atmospheric temperature; Troposphere; Upper atmosphere; Air temperature; Climate change assessment; Climate trends; Degree of correlations; Greece; Spatial and temporal changes; Temperature and humidities; Upper-air temperature; Climate change; air temperature; climate modeling; climatology; Mediterranean environment; radiosonde; regional climate; relative humidity; stratosphere; trend analysis; troposphere; warming; Greece
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/162264
作者单位	Climate and Climatic Change Group, Section of Environmental Physics and Meteorology, Department of Physics, National and Kapodistrian University of Athens, Athens, 15784, Greece; Physics of Atmospheric Environment Group, Section of Environmental Physics and Meteorology, Department of Physics, National and Kapodistrian University of Athens, Athens, 15784, Greece
推荐引用方式 GB/T 7714	Tzanis C.G.,Koutsogiannis I.,Philippopoulos K.,et al. Recent climate trends over Greece[J],2019,230.
APA	Tzanis C.G.,Koutsogiannis I.,Philippopoulos K.,&Deligiorgi D..(2019).Recent climate trends over Greece.Atmospheric Research,230.
MLA	Tzanis C.G.,et al."Recent climate trends over Greece".Atmospheric Research 230(2019).