DOI: 10.1016/j.palaeo.2013.05.029
论文题名: A multiproxy reconstruction of Hebridean (NW Scotland) spring sea surface temperatures between AD 1805 and 2010
作者: Reynolds D.J. ; Butler P.G. ; Williams S.M. ; Scourse J.D. ; Richardson C.A. ; Wanamaker A.D. ; Austin W.E.N. ; Cage A.G. ; Sayer M.D.J.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2013
卷: 386 起始页码: 275
结束页码: 285
语种: 英语
英文关键词: Dog cockle
; Glycymeris glycymeris
; Hebridean shelf sea
; Holocene
; Multiproxy
; Sclerochronology
; Sea surface temperatures
英文摘要: There is currently a deficiency of annually-resolved temperature series from the marine environment. We present a multiproxy reconstruction of Hebridean shelf sea (Tiree Passage; NW Scotland) spring sea surface temperatures (SSTs) for the period AD 1805-2010. The reconstruction is based on the growth increment series from the first absolutely dated annually-resolved multi-centennial Glycymeris glycymeris bivalve mollusc sclerochronology coupled with previously published stable oxygen isotope data (δ18O) from benthic foraminifera sampled from a dated sediment core from nearby Loch Sunart. The independent series contain significant correlations with SSTs across complementary frequency domains. The low frequency component of the sedimentary archive was combined with the mid and high frequency components of the G. glycymeris chronology indices to create a single multiproxy series. Split calibration-verification statistics (reduction of error, RE, coefficient of efficiency, CE, and R2) indicate that the multiproxy record, calibrated to local instrumental sea surface temperatures, contains significant precision and skill at reconstructing spring SSTs (RE=0.59, CE=0.26, R2=0.54). These data demonstrate that bivalve sclerochronologies, when combined with low frequency proxies such as sediment archives, can facilitate statistically robust reconstructions of palaeoceanographic variability during the late Holocene for hydrographically-significant regions of the temperate marine system previously void of annually-resolved archives. The reconstructed SSTs contain a general warming trend of 0.60±0.14°C per century. Only four years in the reconstructed period (1999, 2000, 2002 and 2003) exceed temperatures greater than two standard deviations higher than the reconstructed mean SST (9.03°C), whilst just three years in the first half of the 19th century (1835, 1838 and 1840) fall more than 2σ below the reconstructed mean (6.80°C). © 2013. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/69655
Appears in Collections: 过去全球变化的重建
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作者单位: School of Ocean Sciences, College of Natural Science, Bangor University, Menai Bridge, Anglesey LL59 5AB, United Kingdom; Department of Geological Atmospheric Sciences, Iowa State University, 50011-3212, United States; School of Geography and Geosciences, University of St. Andrews, St Andrews, Fife KY16 9AL, United Kingdom; School of Physical and Geographical Sciences, Keele University, Staffordshire ST5 5BG, United Kingdom; NERC National Facility for Scientific Diving, Dunstaffnage Hyperbaric Unit Scottish Association for Marine Science, Dunbeg, Oban, Argyll PA37 1QA, United Kingdom
Recommended Citation:
Reynolds D.J.,Butler P.G.,Williams S.M.,et al. A multiproxy reconstruction of Hebridean (NW Scotland) spring sea surface temperatures between AD 1805 and 2010[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2013-01-01,386