The compact Earth system model OSCAR v2.2: description and first results
The compact Earth system model OSCAR v2.2: description and first results
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DOI：
10.5194/gmd-10-271-2017
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发表时间：
2017-01-20
影响因子：
5.1
通讯作者：
Hauglustaine, Didier
中科院分区：
文献类型：
--
作者：
Gasser, Thomas;Ciais, Philippe;Hauglustaine, Didier
本文提供了一个全面的描述OSCAR v2.2，一个简单的地球系统模型。首先解释了开发的一般原理，然后完整描述了模型的驱动程序和各个模块。模型中代表了模拟未来气候变化所需的地球系统的所有组成部分：海洋和陆地碳循环--包括一个簿记模块，用于内生地估计土地利用变化排放--以模拟大气二氧化碳的变化;对流层化学和自然湿地，模拟甲烷;平流层化学，用于一氧化二氮; 37卤代化合物;对流层和平流层臭氧的变化;气溶胶的直接和间接影响;黑碳沉积在雪和土地覆盖物上引起的地表覆盖物的变化;以及全球和区域气候对所有这些气候强迫因素的反应-在温度和降水方面。根据模型的概率框架，在历史时期（1750-2010年）进行了模拟。我们表明，该模型在再现观测到的地球系统过去的变化，如大气中温室气体浓度增加或全球平均表面温度增加表现良好。
This paper provides a comprehensive description of OSCAR v2.2, a simple Earth system model. The general philosophy of development is first explained, followed by a complete description of the model's drivers and various modules. All components of the Earth system necessary to simulate future climate change are represented in the model: the oceanic and terrestrial carbon cycles - including a bookkeeping module to endogenously estimate land-use change emissions - so as to simulate the change in atmospheric carbon dioxide; the tropospheric chemistry and the natural wet-lands, to simulate that of methane; the stratospheric chemistry, for nitrous oxide; 37 halogenated compounds; changing tropospheric and stratospheric ozone; the direct and indirect effects of aerosols; changes in surface albedo caused by black carbon deposition on snow and land-cover change; and the global and regional response of climate - in terms of temperature and precipitation - to all these climate forcers. Following the probabilistic framework of the model, an ensemble of simulations is made over the historical period (1750-2010). We show that the model performs well in reproducing observed past changes in the Earth system such as increased atmospheric concentration of greenhouse gases or increased global mean surface temperature.