検索対象:     
報告書番号:
※ 半角英数字
 年 ~ 
 年

Development of a sophisticated land surface model for impact assessments of aerosols on vegetation

エアロゾルの植物影響評価のための精緻な地表面モデルの開発

堅田 元喜; 梶野 瑞王*; 永井 晴康  

Katata, Genki; Kajino, Mizuo*; Nagai, Haruyasu

東アジアにおける植生へのエアロゾル沈着量を評価するために、植生へのガス状・粒子状物質の乾性沈着過程を考慮した精緻な多層地表面モデル(SOLVEG)を日本の山地林に適用した。このモデルは、ガスの沈着量とエアロゾルの粒径別沈着量を各植生層で計算する。気象モデルと化学輸送モデルからの出力結果を用いて、SOLVEGによってSO$$_{2}$$, NH$$_{3}$$、及びエアロゾルの沈着速度を計算した。SOLVEGは、SO$$_{2}$$とNH$$_{3}$$の沈着速度の典型的な日変化パターン、すなわち日中の光合成に伴う沈着速度の増加を再現した。エアロゾルの粒径別の沈着速度の計算結果は、研究対象地域で林内雨法によって測定された観測結果と一致した。

A sophisticated multi-layer land surface model (SOLVEG) was applied to mountain forest in Japan to test its performance in predicting the aerosol deposition on vegetation in East Asia. The model calculates the dry deposition of gases and size-resolved particles at each canopy layer. Using the output data from meteorological and chemical transport models, the calculations of deposition velocities of the SO$$_{2}$$ and NH$$_{3}$$ and size-resolved aerosols by SOLVEG was carried out. The SOLVEG reproduced a typically observed diurnal pattern in dry deposition velocities of SO$$_{2}$$ and NH$$_{3}$$ as those increased during the daytime due to the stomata uptake. The calculated size-resolved deposition velocity of aerosols agreed with the observed data obtained from the throughfall measurements in the study site.

Access

:

- Accesses

InCites™

:

Altmetrics

:

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.