DOI: 10.1016/j.gloplacha.2016.08.016
论文题名: Changes in heat waves indices in Romania over the period 1961–2015
作者: Croitoru A.-E. ; Piticar A. ; Ciupertea A.-F. ; Roşca C.F.
刊名: Global and Planetary Change
ISSN: 0921-8181
出版年: 2016
卷: 146 起始页码: 109
结束页码: 121
语种: 英语
英文关键词: Climate change
; Heat wave
; Percentile threshold
; Romania
; Spatial distribution
Scopus关键词: Climate change
; Spatial distribution
; Weather information services
; Extreme temperatures
; Heat waves
; Maximum and minimum temperatures
; Maximum temperature
; Minimum temperatures
; Percentile threshold
; Romania
; Weather stations
; Climatology
英文摘要: In the last two decades many climate change studies have focused on extreme temperatures as they have a significant impact on environment and society. Among the weather events generated by extreme temperatures, heat waves are some of the most harmful. The main objective of this study was to detect and analyze changes in heat waves in Romania based on daily observation data (maximum and minimum temperature) over the extended summer period (May–Sept) using a set of 10 indices and to explore the spatial patterns of changes. Heat wave data series were derived from daily maximum and minimum temperature data sets recorded in 29 weather stations across Romania over a 55-year period (1961–2015). In this study, the threshold chosen was the 90th percentile calculated based on a 15-day window centered on each calendar day, and for three baseline periods (1961–1990, 1971–2000, and 1981–2010). Two heat wave definitions were considered: at least three consecutive days when maximum temperature exceeds 90th percentile, and at least three consecutive days when minimum temperature exceeds 90th percentile. For each of them, five variables were calculated: amplitude, magnitude, number of events, duration, and frequency. Finally, 10 indices resulted for further analysis. The main results are: most of the indices have statistically significant increasing trends; only one index for one weather station indicated statistically significant decreasing trend; the changes are more intense in case of heat waves detected based on maximum temperature compared to those obtained for heat waves identified based on minimum temperature; western and central regions of Romania are the most exposed to increasing heat waves. © 2016 Elsevier B.V. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84990818504&doi=10.1016%2fj.gloplacha.2016.08.016&partnerID=40&md5=096762958a73ac0933b28523857fe3af
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/11610
Appears in Collections: 全球变化的国际研究计划 气候变化与战略
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作者单位: Babeş-Bolyai University, Faculty of Geography, Department of Physical and Technical Geography, 5-7, Clinicilor Street, Cluj-Napoca, Romania
Recommended Citation:
Croitoru A.-E.,Piticar A.,Ciupertea A.-F.,et al. Changes in heat waves indices in Romania over the period 1961–2015[J]. Global and Planetary Change,2016-01-01,146.