globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2013.10.010
论文题名:
Modern sea surface productivity and temperature estimations off Chile as detected by coccolith accumulation rates
作者: Saavedra-Pellitero M.; Baumann K.-H.; Hernández-Almeida I.; Flores J.A.; Sierro F.J.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2013
卷: 392
起始页码: 534
结束页码: 545
语种: 英语
英文关键词: Coccolith ; Coccolithophores ; Pacific ; Productivity ; Sea surface temperature
英文摘要: Recent coccoliths from 74 surface sediment samples recovered from the southeastern Pacific off Chile were examined quantitatively to investigate modern regional gradients of sea surface productivity and temperature. All findings are based on coccolith accumulation rates. Therefore an approach was designed to estimate recent sedimentation rates based on 210Pb and bulk chemistry analyses of the same set of surface samples. Highest total coccolith accumulation rates were found off north-central Chile, where seasonal upwelling takes place. Based on a multiple linear regression between calculated coccolith accumulation rates and World Ocean Atlas derived sea surface temperatures, a calibration model to reconstruct annual average temperatures of the uppermost 75m of the water column is provided. The model was cross-validated and the SST estimates were compared with SST observed and SST estimates based on diatoms and planktonic foraminifera, showing a good correlation. © 2013 Elsevier B.V.
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被引频次[WOS]:11   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/69561
Appears in Collections:过去全球变化的重建

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作者单位: University of Bremen, Department of Geosciences, Klagenfurter Strasse, 28359 Bremen, Germany; University of Bern, Institute of Geography, Oeschger Centre for Climate Change Research, Erlachstrasse 9a, Trakt 3, CH-3012, Bern, Switzerland; University of Salamanca, Facultad de Ciencias, Departamento de Geología, 37008 Salamanca, Spain

Recommended Citation:
Saavedra-Pellitero M.,Baumann K.-H.,Hernández-Almeida I.,et al. Modern sea surface productivity and temperature estimations off Chile as detected by coccolith accumulation rates[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2013-01-01,392
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