| 项目编号: | 1443176
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| 项目名称: | EAGER: Development of a Multivariate Biomarker Analysis Technique for Paleoclimate Reconstruction |
| 作者: | Jessica Tierney
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| 承担单位: | Woods Hole Oceanographic Institution
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| 批准年: | 2013
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| 开始日期: | 2014-06-15
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| 结束日期: | 2016-05-31
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| 资助金额: | USD75894
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| 资助来源: | US-NSF
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| 项目类别: | Standard Grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Geosciences - Atmospheric and Geospace Sciences
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| 英文关键词: | biomarker
; paleoclimate reconstruction
; biomarker datum
; paleoclimate archive
; paleoclimate study
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| 英文摘要: | Reconstructions of past environments based on chemical "proxies" have provided invaluable insights into how the Earth system functions on a variety of timescales, from decades to millions of years. Organic molecular, or "biomarker", proxies are being applied increasingly in paleoclimate studies, and these compounds hold a wealth of information about an array of environmental conditions includin temperature, aridity, vegetation biome type, and water salinity. However, their current interpretation is mainly in terms of a single variable of interest, most often temperature.
This study, led by an early-career researcher from the Woods Hole Oceanographic Institution, is a first attempt to leverage the multidimensional quality of biomarker data for paleoclimate reconstruction. A statistical model will be developed using artificial neural network (ANN) and support vector regression (SVR) algorithms ("machine learning" techniques). This will allow quantitative evaluation of how assemblages of biomarkers in sedimentary archives relate to an array of modern environmental conditions. The outcomes of the proposed project will include development of a new toolbox to quantitatively reconstruct past climates over land and in the ocean in many types of paleoclimate archives. Such a tool could have broad application across a range of fields including environmental studies, petroleum geology, and computer science. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/96611
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| Appears in Collections: | 影响、适应和脆弱性
气候减缓与适应
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| Recommended Citation: | |
Jessica Tierney. EAGER: Development of a Multivariate Biomarker Analysis Technique for Paleoclimate Reconstruction. 2013-01-01.
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