DOI: 10.1002/joc.5231
论文题名: Sea surface temperature variability along the Portuguese coast since 1950
作者: Baptista V. ; Silva P.L. ; Relvas P. ; Teodósio M.A. ; Leitão F.
刊名: International Journal of Climatology
ISSN: 8998418
出版年: 2018
卷: 38, 期: 3 语种: 英语
英文关键词: Dynamic factor analysis
; Fisheries varibility
; Kolmogorov–zurbenko adaptive filter
; Kolmogorov–zurbenko filter
; Recruitment
; Regime shift indicator
; Seasonal decomposition by loess smoothing
Scopus关键词: Adaptive filtering
; Adaptive filters
; Atmospheric temperature
; Climate change
; Fisheries
; Submarine geophysics
; Surface properties
; Surface waters
; Time series
; Time series analysis
; Dynamic factor analysis
; Kolmogorov
; Recruitment
; Regime shift
; Seasonal decomposition by loess smoothing
; Oceanography
; annual variation
; climate change
; factor analysis
; fishery
; sea surface temperature
; seasonal variation
; signal processing
; smoothing
; Portugal
英文摘要: Overall an increase in sea surface temperature (SST) has been recorded over the last century. However, changes in SST are not homogeneous across the ocean. Most studies focus on the processes and mechanisms setting SST variability across broad scales and neglect changes occurring at a regional scale. So, this study aims to describe annual, seasonal and monthly time-series trends in SST along the Portuguese coast, compare trends among areas (Northwest, Southwest and South), quantify SST increase rates and SST time-series discontinuities. Time-series analyses showed that SST has the same annual and monthly trend regardless of the area and data sets used (ICOADS: 1950–2010; Satellite data: 1985–2010). SST increased in the three areas: +0.1 °Cdecade -1 in Northwestern and Southwestern coasts (the same than global average), +0.2 °C decade -1 in the Southern coast. The higher monthly SST increment rates were observed in spring and summer (satellite data: +0.4 °C decade -1 in June in Northwest; +0.4 °C decade -1 in April in Southwest; +0.5 °C decade -1 in June in South). Discontinuities, that is, sudden shifts in time-series, were observed after 1987, 1995 and 1982–1983 in the Northwest, Southwest and Southern areas, respectively. Overall, this study reinforces the hypothesis that SST varies regionally; so, studies assessing the impacts inherent to climate change along coastal areas, namely fisheries variability, ought to have this perspective into account. © 2017 Royal Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/117145
Appears in Collections: 气候减缓与适应
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作者单位: Centre of Marine Sciences (CCMAR), University of Algarve, Faro, Portugal
Recommended Citation:
Baptista V.,Silva P.L.,Relvas P.,et al. Sea surface temperature variability along the Portuguese coast since 1950[J]. International Journal of Climatology,2018-01-01,38(3)