地球科学进展 ›› 2008, Vol. 23 ›› Issue (3): 221 -227. doi: 10.11867/j.issn.1001-8166.2008.03.0221

“土地利用/覆盖变化与综合减灾”专辑    下一篇

大洋碳循环与气候演变的热带驱动
翦知湣,金海燕   
  1. 同济大学海洋地质国家重点实验室, 上海 200092
  • 收稿日期:2008-01-10 修回日期:2008-01-20 出版日期:2008-03-10
  • 通讯作者: 翦知湣 E-mail:zjiank@online.sh.cn
  • 基金资助:

    国家重点基础研究发展计划项目“大洋碳循环与气候演变的热带驱动”(编号:2007CB51900)资助.

Ocean Carbon Cycle and Tropical Forcing of Climate Evolution

Jian Zhimin,Jin Haiyan   

  1. State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China
  • Received:2008-01-10 Revised:2008-01-20 Online:2008-03-10 Published:2008-03-10

20世纪气候演变研究的最大突破,在于地球轨道变化驱动冰期旋回的米兰柯维奇理论。然而近年来学术界对热带过程和大气CO2浓度变化的研究进展,暴露了传统的轨道驱动理论存在着对低纬区和碳循环在全球气候系统中作用估计不足的严重缺陷。国家重点基础研究发展计划项目“大洋碳循环与气候演变的热带驱动”拟以南海与西太平洋暖池的深海记录为依据,进行全球性对比和跨越地球圈层的探索,通过观测分析结果与数值模拟的结合、地质记录与现代过程的结合,检验和论证大洋碳储库长周期变化机制的假说,对于不同时间尺度上低纬过程如何通过碳循环在全球气候环境演变中的作用,实现理论上的突破。同时简要介绍了该项目的目的、科学意义、关键科学问题及预期目标等。

Scientific forecasting of living environment change for the human society requires a proper understanding of the mechanism and the nature of climate-environment changes. Recent progresses in the studies of tropical process and atmospheric CO2 concentration further reveal the imperfection of the classical Milankovitch theory on the role of low latitude region and carbon cycle in the global climate system, although it has been widely applied to orbitaldriven glacial cycles. The new National Key Basic Research Science Foundation (973) project, entitled "Ocean Carbon Cycle and Tropical Forcing of Climate Evolution", is aimed to clarify and test the hypothesis about the long period of ocean carbon reservoir. This project will achieve global correlation and probe into the connection between different earth's spheres, based on the the deep sea records of the South China Sea and western Pacific warm pool. The results of observations will be combined with mathematic modeling to reveal the role of low latitude process in the global climate environment through carbon cycling on various time scales, contributing to international studies of the evolution of the climate system. This article briefly introduces the research purpose, science siginificance, key sciencfic questions and expected goals of the project.

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