DOI: 10.1002/joc.5913
Scopus记录号: 2-s2.0-85056819744
论文题名: A reappraisal of the thermal growing season length across Europe
作者: Cornes R.C. ; van der Schrier G. ; Squintu A.A.
刊名: International Journal of Climatology
ISSN: 8998418
出版年: 2019
卷: 39, 期: 3 起始页码: 1787
结束页码: 1795
语种: 英语
英文关键词: EEMD
; ETCCDI
; synoptic variability
; temperature trends
Scopus关键词: Atmospheric pressure
; Atmospheric circulation patterns
; EEMD
; ETCCDI
; North Atlantic oscillations
; Surface air temperatures
; Synoptic variability
; Temperature trends
; Time series decomposition
; Climate change
英文摘要: Growing season length (GSL) indices derived from surface air temperature are frequently used in climate monitoring applications. The widely used Expert Team on Climate Change Detection and Indices (ETCCDI) definition aims to give a broadly applicable measure of the GSL that is indicative of the duration of the mild part of the year. In this paper long-term trends in that index are compared with an alternative measure calculated using a time series decomposition technique (empirical ensemble mode decomposition [EEMD]). It is demonstrated that the ETCCDI index departs from the mild-season definition as its start and end dates are determined by temperature events operating within the synoptic timescale; this raises the inter-annual variance of the index. The EEMD-derived index provides a less noisy and more realistic index of the GSL by filtering out the synoptic-scale variance and capturing the annual-cycle and longer timescale variability. Long-term trends in the GSL are comparable between the two indices, with an average increase in length of around 5 days/decade observed for the period 1965–2016. However, the results using the EEMD index display a more coherent picture of significant trends than has been previously observed. Furthermore, the EEMD-derived growing season parameters are more closely related to variations in seasonal-mean hemispheric-scale atmospheric circulation patterns, with around 57% of the inter-annual variation in the start of the growing season being connected to the North Atlantic Oscillation and East Atlantic patterns, and around 55% of variation in the end of the growing season being associated with East Atlantic/west Russia-type patterns. © 2018 Royal Meteorological Society
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/116526
Appears in Collections: 全球变化的国际研究计划
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作者单位: Royal Netherlands Meteorological Institute (KNMI), De Bilt, Netherlands; National Oceanography Centre, Southampton, United Kingdom
Recommended Citation:
Cornes R.C.,van der Schrier G.,Squintu A.A.. A reappraisal of the thermal growing season length across Europe[J]. International Journal of Climatology,2019-01-01,39(3)