globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2016.10.022
论文题名:
Multi-species coral Sr/Ca-based sea-surface temperature reconstruction using Orbicella faveolata and Siderastrea siderea from the Florida Straits
作者: Flannery J.A.; Richey J.N.; Thirumalai K.; Poore R.Z.; DeLong K.L.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2017
卷: 466
起始页码: 100
结束页码: 109
语种: 英语
英文关键词: Atlantic multidecadal oscillation ; Orbicella faveolata ; Paleoclimatology ; Sclerochronolgy ; Siderastrea siderea ; Sr/Ca
英文摘要: We present new, monthly-resolved Sr/Ca-based sea-surface temperature (SST) records from two species of massive coral, Orbicella faveolata and Siderastrea siderea, from the Dry Tortugas National Park, FL, USA (DTNP). We combine these new records with published data from three additional S. siderea coral colonies to generate a 278-year long multi-species stacked Sr/Ca-SST record from DTNP. The composite record of mean annual Sr/Ca-SST at DTNP shows pronounced decadal-scale variability with a range of 1 to 2 °C. Notable cool intervals in the Sr/Ca-derived SST lasting about a decade centered at ~ 1845, ~ 1935, and ~ 1965 are associated with reduced summer Sr/Ca-SST (monthly maxima < 29 °C), and imply a reduction in the spatial extent of the Atlantic Warm Pool (AWP). There is significant coherence between the composite DTNP Sr/Ca-SST record and the Atlantic Multidecadal Oscillation (AMO) index, with the AMO lagging Sr/Ca-SST at DTNP by 9 years. Low frequency variability in the Gulf Stream surface transport, which originates near DTNP, may provide a link for the lagged relationship between multidecadal variability at DTNP and the AMO. © 2016
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/68028
Appears in Collections:过去全球变化的重建

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作者单位: United States Geological Survey, 600 4th St. South, St. Petersburg, FL, United States; Institute for Geophysics, Jackson School of Geosciences, University of Texas at Austin, J.J. Pickle Research Campus, Building 196, 10100 Burnet Road (R2200), Austin, TX, United States; Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, 1 University Station C9000, Austin, TX, United States; Department of Geography and Anthropology, Louisiana State University, 227 Howe-Russell Geoscience Complex, Baton Rouge, LA, United States

Recommended Citation:
Flannery J.A.,Richey J.N.,Thirumalai K.,et al. Multi-species coral Sr/Ca-based sea-surface temperature reconstruction using Orbicella faveolata and Siderastrea siderea from the Florida Straits[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2017-01-01,466
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