Coupled Models of Geochemical Cycles and Climate

地球化学循环与气候的耦合模式 全球气候和地球化学模型必须结合起来 来理解地球化学循环。 操作 独立地，这些模型做出了一致的预测， 古环境条件 但在自然界中， 动态耦合。 气候是二氧化碳含量的函数， 大气层，它被控制了数百万年， 沉积物脱碳过程中的产量平衡 岩石和消耗在地壳风化。 风化 另一方面，速率取决于温度， 降雨 该模型将解决的性质和影响， 这种耦合。 第一年将研究气候对化学物质的影响。 风化速率 第二年，风化率子程序 将与气候模型相结合， 压力计算，目的是分析 反馈的重要性以及气候、 风化和大气中的二氧化碳

Coupled Models of Geochemical Cycles and Climate Global models of climate and geochemistry must be integrated in order to understand geochemical cycles. Operated independently, these models have made concordant predictions of paleoenvironmental conditions. Yet in nature, the are dynamically coupled. Climate is a function of the CO2 content of the atmosphere, which is controlled over millions of years by the balance of production during the decarbonation of sedimentary rocks and consumption during crustal weathering. Weathering rates, on the other hand, are dependent on temperature and rainfall. The modelling will address the nature and impact of this coupling. The first year will study the effect of climate on chemical weathering rates. In the second year a weathering rate subroutine will be integrated with the climate model, a equilibrium CO2 pressure calculated, with the objective of analyzing the importance of feedbacks and relationships between climate, weathering, and atmospheric CO2.