The Late Miocene Climate Enigma: Insights from Expedition 363

GSTDTAP

项目编号	NE/P016456/1
	The Late Miocene Climate Enigma: Insights from Expedition 363
	Caroline Lear
主持机构	Cardiff University
项目开始年	2017
	2017-06-07
项目结束日期	2018-04-18
资助机构	UK-NERC
项目类别	Research Grant
国家	英国
语种	英语
英文摘要	2016 has been a record breaking year in terms of global temperatures. The high temperatures have resulted from a combination of elevated atmospheric pCO2 coupled with the global impacts of a strong El Nino event. There are many important components of the climate system, and the El Nino phenomenon demonstrates the importance of the low latitude Pacific Ocean. The warm pool of water in the western Pacific Ocean has not always had the same characteristics as it has today, and it has been proposed that its evolution over the past 15 million years has had a major impact on global climate. In order to understand how the warm pool might respond to future climate change, it is important to understand the drivers behind its past evolution. Did it respond simply to the changing shape of ocean basins through time? Or did it respond to other components of the climate system, such as sea level or latitudinal temperature gradients? The changes in warm pool structure may also have impacted the biological ecosystems, and hence the cycling of carbon in this region. The carbon cycle is another key component of the Earth's climate system. Understanding the causes and consequences of these long-term changes in the Pacific warm pool requires a two-pronged approach, using modelling in conjunction with proxy records for different parts of the climate system. This proposal aims to generate some key records of past high latitude temperature and ice volume that can be directly compared with changes in the warm pool through time. These records will be derived from geochemical analyses of microscopic marine fossils collected by the International Ocean Discovery Program (IODP).
来源学科分类	Natural Environment Research
文献类型	项目
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/86722
专题	环境与发展全球科技态势
推荐引用方式 GB/T 7714	Caroline Lear.The Late Miocene Climate Enigma: Insights from Expedition 363.2017.