Editorial Type:
Article
Article Type:
Research Article

Evaluation of Long-Range Transport Models for Acidic Deposition in East Asia

Mahesh J. Phadnis Center for Global and Regional Environmental Research, Department of Chemical and Biochemical Engineering, University of Iowa, Iowa City, Iowa

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Gregory R. Carmichael Center for Global and Regional Environmental Research, Department of Chemical and Biochemical Engineering, University of Iowa, Iowa City, Iowa

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Yoichi Ichikawa Central Research Institute of Electric Power Industry, Komae, Tokyo, Japan

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Hiroshi Hayami Central Research Institute of Electric Power Industry, Komae, Tokyo, Japan

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Print Publication:
01 Oct 1998
DOI:
https://doi.org/10.1175/1520-0450(1998)037<1127:EOLRTM>2.0.CO;2
Page(s):
1127–1142
Restricted access

Abstract

A comparison between transport models is done to study the sulfur deposition in East Asia. A single-layer Lagrangian model with simple chemistry is compared to a multilayered 3D Eulerian model. The comparison is done for two-month-long episodes of winter (February) and summer (August) 1989. The model-predicted sulfur deposition is about 0.1 g S (m2 month)−1 for regions with the largest emissions. A comparison between the model-predicted and the observed values at a network of monitoring stations in Japan shows similar temporal trends. The sulfur deposition due to volcanic emissions in Japan has been shown to be about 20% of the total deposition in that country.

Corresponding author address: Dr. Mahesh J. Phadnis, CGRER, 220 IATL, University of Iowa, Iowa City, IA 52242.

Abstract

A comparison between transport models is done to study the sulfur deposition in East Asia. A single-layer Lagrangian model with simple chemistry is compared to a multilayered 3D Eulerian model. The comparison is done for two-month-long episodes of winter (February) and summer (August) 1989. The model-predicted sulfur deposition is about 0.1 g S (m2 month)−1 for regions with the largest emissions. A comparison between the model-predicted and the observed values at a network of monitoring stations in Japan shows similar temporal trends. The sulfur deposition due to volcanic emissions in Japan has been shown to be about 20% of the total deposition in that country.

Corresponding author address: Dr. Mahesh J. Phadnis, CGRER, 220 IATL, University of Iowa, Iowa City, IA 52242.

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