白垩纪温室气候机制的模拟研究评述  

Mechanisms and Simulations of Greenhouse Climate in the Cretaceous:A review

作　　者：于革[1] 

机构地区：[1]中国科学院南京地理与湖泊研究所,南京210008

出　　处：《气候变化研究进展》2007年第1期20-25,共6页Climate Change Research

基　　金：国家自然科学基金重点项目(90411017)资助

摘　　要：白垩纪是地质史上一个典型的温室气候时期,国际上围绕白垩纪气候成因开展了一系列模拟研究。在评述白垩纪古气候模拟的基础上,讨论了气候模式的应用和发展、古气候边界场设置和模拟试验,分析白垩纪温室气体、古地理、古海洋以及海陆生态系统对气候的作用和反馈。这些古气候模拟试验锁定在气候变化的关键时段和驱动因子、测试地球内外动力和地球各圈层反馈作用,可为认识温室气候的成因、探讨气候变化内在机制和预测未来气候提供重要的科学依据。The Cretaceous is a typical period for greenhouse climate in geological history and has become an important paleoclimate simulation period in international paleoclimate modeling community. This paper reviews a series of Cretaceous climate simulations, discusses the climate model＇s developing, the paleoclimatic boundary conditions and the experiment designs, and analyzes the impacts and feedbacks of atmospheric greenhouse gases, topography, oceans and terrestrial ecosystems on the Cretaceous climate system. These simulations focused on the major factors driving Cretaceous climate changes and the critical time periods of the climate change, and tested the internal and external forcing in the earth climate system and the feedback effects among various spheres of the earth system, thus providing us an understanding of the mechanism of greenhouse climate and an important scientific basis for projection of the future climate changes.

关 键 词：白垩纪 温室气候 古气候模拟 驱动机制 

分 类 号：P467[天文地球—大气科学及气象学]