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Atmosphere-soil-vegetation model including CO$$_{2}$$ exchange processes; SOLVEG2

CO$$_{2}$$交換過程を含む大気-土壌-植生モデル; SOLVEG2

永井 晴康  

Nagai, Haruyasu

大気と陸面間の熱,水及びCO$$_{2}$$交換を研究するために、新しい大気-土壌-植生モデルSOLVEG2(SOLVEGバージョン2)の開発を行った。モデルは、大気,土壌,植生それぞれについての1次元多層サブモデルからなる。また、モデルは、植生層内の日射及び長波放射の伝達、及び大気,土壌,植生間のCO$$_{2}$$交換を計算する精緻な過程も含んでいる。本モデルは、3次元の大気モデルと結合して計算を行う機能も有する。本報告は、大気モデルMM5との結合機能も含めて、SOLVEG2の詳細を記述する。

A new atmosphere-soil-vegetation model named SOLVEG2 (SOLVEG version 2) was developed to study the heat, water, and CO$$_{2}$$ exchanges between the atmosphere and land-surface. The model consists of one-dimensional multilayer sub-models for the atmosphere, soil, and vegetation. It also includes sophisticated processes for solar and long-wave radiation transmission in vegetation canopy and CO$$_{2}$$ exchanges among the atmosphere, soil, and vegetation. The model can be also used by coupling with a three-dimensional atmosphere model. In this paper, details of SOLVEG2, which includes the function of coupling with atmosphere model MM5, are described.

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