期刊
GEOSCIENTIFIC MODEL DEVELOPMENT
卷 11, 期 4, 页码 1607-1626出版社
COPERNICUS GESELLSCHAFT MBH
DOI: 10.5194/gmd-11-1607-2018
关键词
-
资金
- E.U. 7th Framework Programme on Research, Technological Development and Demonstration
The Middle Miocene Climate Transition was characterized by major Antarctic ice sheet expansion and global cooling during the interval similar to 15-13 Ma. Here we present two sets of boundary conditions for global general circulation models characterizing the periods before (Middle Miocene Climatic Optimum; MMCO) and after (Middle Miocene Glaciation; MMG) the transition. These boundary conditions include Middle Miocene global topography, bathymetry, and vegetation. Additionally, Antarctic ice volume and geometry, sea level, and atmospheric CO2 concentration estimates for the MMCO and the MMG are reviewed. The MMCO and MMG boundary conditions have been successfully applied to the Community Climate System Model version 3 (CCSM3) to provide evidence of their suitability for global climate modeling. The boundary-condition files are available for use as input in a wide variety of global climate models and constitute a valuable tool for modeling studies with a focus on the Middle Miocene.
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