Incorporation of CO2 Exchange Processes into a Multilayer Atmosphere–Soil–Vegetation Model
Incorporation of CO2 Exchange Processes into a Multilayer Atmosphere–Soil–Vegetation Model
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DOI：
10.1175/jam2293.1
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发表时间：
2005-10
期刊：
影响因子：
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通讯作者：
H. Nagai
中科院分区：
文献类型：
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作者：
H. Nagai
摘要二氧化碳(CO2)交换过程被纳入称为SOLVEG的多层大气-土壤-植被模式中，并利用从草原现场获得的测量数据对其性能进行了检验。并将其应用于表层生态系统的CO2收支计算。该模式的特点是对于大气、土壤和植被是多层的，并且包括复杂的过程，涉及到太阳和长波辐射通量在冠层中的传输。通过对前人计算的地表热通量与观测值的比较，验证了大气与地表之间热量和水分交换的模式框架。在这项研究中，建立了一个新的模型框架，该模型框架包含了二氧化碳以及热量、水和动量的交换过程，这些过程相互作用。通过比较海浪的计算值和观测值，验证了该模式的性能。
Abstract Carbon dioxide (CO2) exchange processes were incorporated into a multilayer atmosphere–soil–vegetation model known as SOLVEG, and its performance was examined using measurements obtained from a grassland site. It was also applied for the CO2 budget calculation in the surface ecosystem. The characteristic feature of this model is that it is multilayered for the atmosphere, soil, and vegetation and includes sophisticated processes involving transmission of the solar and longwave radiation fluxes in the canopy. The model framework for the heat and water exchanges between the atmosphere and ground surface was validated by comparisons of ground surface heat fluxes between the calculated and observed values in the previous papers. In this study, a new model framework that includes the exchange process of CO2 along with those of heat, water, and momentum, which interact with each other, has been developed. The performance of the model was examined by comparing the calculated and observed values for surf...