文章基本信息

标题：Issues Related to the Use of One-dimensional Ocean-diffusion Models for Determining Climate Sensitivity
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作者：John P Abraham ; Sameer Kumar ; Barry R Bickmore 等
期刊名称：Journal of Earth Science & Climatic Change
电子版ISSN：2157-7617
出版年度：2014
卷号：5
期号：8
页码：1-8
DOI：10.4172/2157-7617.1000220
语种：English
出版社：OMICS International
摘要：While simple models of the Earth’s ocean can provide useful information about the sensitivity of the climate to increasing greenhouse gases, it is important to ensure that the models are based on realistic physical processes and are evaluated with an accurate numerical methodology. In this regard, a number of computational issues are identified and addressed to guide the development of simplified models. To illustrate these issues, we examine a previously published one-dimensional diffusion model. Treatment of the boundary conditions, advection, ocean depth, and thermal diffusivity are addressed. Questionable omission of 30% of the Earth’s surface and the application of a very local phenomenon as a global process is also discussed. It is shown that incorrect treatment of these issues can give non-physical results and lead to mistaken conclusions about the sensitivity of the Earth to rising greenhouse gas concentrations.
关键词：Climate change; Global warming; Ocean heating; Diffusion model; Climate sensitivity