Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2016.09.018 |
Influence of climate change on the frequency of daytime temperature inversions and stagnation events in the Po Valley: historical trend and future projections | |
Caserini, Stefano1; Giani, Paolo1; Cacciamani, Carlo2; Ozgen, Senem1; Lonati, Giovanni1 | |
2017-02-01 | |
发表期刊 | ATMOSPHERIC RESEARCH |
ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2017 |
卷号 | 184 |
文章类型 | Article |
语种 | 英语 |
国家 | Italy |
英文摘要 | This work analyzes the frequency of days characterized by daytime temperature inversion and air stagnation events in the Po valley area. The analysis is focused on both historical series and future projections under climate change. Historical sounding data from two different Italian stations are used as well as future projections data, provided by CMCC-CCLM 4-8-19 regional climate model (MED-CORDEX initiative). A new method to detect layers of temperature inversion is also presented. The developed method computes the occurrence of a temperature inversion layer for a given day at 12 UTC without a detailed knowledge of temperature vertical profile. This method was validated using sounding data and applied to the model projections, under two different emissions scenarios (RCP4.5 and RCP8.5). Under RCP4.5 intermediate emissions scenario, the occurrence of temperature inversions is projected to increase by 12 days/year (around + 10%) in the last decade of 21st century compared to 1986-2005 average. However, the increase in temperature inversions seems to be especially concentrated in the warm period. Under RCP8.5 extreme scenario, temperature inversions are still projected to increase, though to a lesser extent compared to RCP4.5 scenario (+ 6 days/year in the last decade of 21st century). A similar trend was found also for air stagnation events, which take into account the variation of precipitation pattern and wind strength. The expected increases are equal to +13 days/year and +11 days/year in the last decade of 21st century compared to 1986-2005 average, under RCP4.5 and RCP8.5 scenarios respectively. (C) 2016 Elsevier B.V. All rights reserved. |
英文关键词 | Med-CORDEX Atmospheric lapse rate Lapse rate inversion Air quality Atmospheric stability Air stagnation |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000390499100002 |
WOS关键词 | CHEMICAL-COMPOSITION ; AEROSOL |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/37966 |
专题 | 地球科学 |
作者单位 | 1.Politecn Milan, Dept Civil & Environm Engn, Pza L da Vinci 32, I-20133 Milan, Italy; 2.ARPA Emilia Romagna, Serv Idrometeo Clima, Via Silvani 6, I-40122 Bologna, Italy |
推荐引用方式 GB/T 7714 | Caserini, Stefano,Giani, Paolo,Cacciamani, Carlo,et al. Influence of climate change on the frequency of daytime temperature inversions and stagnation events in the Po Valley: historical trend and future projections[J]. ATMOSPHERIC RESEARCH,2017,184. |
APA | Caserini, Stefano,Giani, Paolo,Cacciamani, Carlo,Ozgen, Senem,&Lonati, Giovanni.(2017).Influence of climate change on the frequency of daytime temperature inversions and stagnation events in the Po Valley: historical trend and future projections.ATMOSPHERIC RESEARCH,184. |
MLA | Caserini, Stefano,et al."Influence of climate change on the frequency of daytime temperature inversions and stagnation events in the Po Valley: historical trend and future projections".ATMOSPHERIC RESEARCH 184(2017). |
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