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Decadal to Centennial Scale Variability in the Tropical Pacific Ocean: The Thermodynamic Record in Sclerosponges

Decadal to Centennial Scale Variability in the Tropical Pacific Ocean: The Thermodynamic Record in Sclerosponges
热带太平洋十年到百年尺度的变化：硬化海绵的热力学记录
批准号：
9618592
负责人：
Christopher Charles
金额：
$17.31万
依托单位：
University of California-San Diego Scripps Inst of Oceanography
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
1997
资助国家：
美国
项目状态：
已结题
起止时间：
1997-02-15 至 1999-07-31
来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9618592&HistoricalAwards=false
关键词：
DecadalCentennialScaleVariabilityTropical

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中文摘要
翻译
该项目将从西太平洋的一系列深度和地点进行深栖硬化体研究，并以至少两年一次的分辨率检查过去100年或更长时间内骨骼化学的变化。氧同位素可以作为海洋温度变化的示踪剂，因此有助于确定长期变化的模式（十年至百年）。每个站点将部署热敏电阻，每月将收集水样进行地面实况分析。年龄控制将通过U/Th定年和人为碳同位素趋势来完成。
英文摘要
This project will conduct deep-dwelling sclerosponges from a range of depths and sites in the western Pacific Ocean and examine the changes in skeletal chemistry over the last hundred years or more, with at least biannual resolution. Oxygen isotopes can serve as tracers for changes in ocean temperature and therefore help to determine the pattern of long-term variation (decadal to centennial). Thermistors will be deployed at each site, and monthly water samples will be collected to ground-truth analyses. Age control will be accomplished through U/Th dating and trends of anthropogenic carbon isotopes.
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Collaborative Research: Vertical gradients in Southern Ocean Radiocarbon across the major climate transitions of the last 30,000 years
Scales of pH variability on Pacific coral reefs reconstructed from skeletal boron and boron isotopes
Early Grant in Exploratory Research: Acquisition and analysis of sediment cores from the eastern tropical Indian Ocean
Collaborative Research: Evolution of the deep South Atlantic since the last interglacial period inferred from a depth transect of Cape Basin sediment cores
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