Report
A 3-D Model Analysis of The Impact of Asian Anthropogenic Emissions on the Sulfur Cycle Over the Pacific Ocean
01 Jan 2000
Abstract
The impact of anthropogenic activities on the SO2 and sulfate aerosol levels over the Pacific region is examined in the Georgia Tech/Goddard Global Ozone Chemistry Aerosol Radiation and Transport (GOCART) model. We focus on the analysis of the data from the NASA Pacific Exploratory Missions (PEM) over the western North Pacific and the tropical Pacific. These missions include PEM-West A in September-October 1991, when the Asian outflow was at the minimum but the upper atmosphere was heavily influenced by the Pinatubo volcanic eruption, and PEM-West B in March-April 1994 when the Asian outflow was at the maximum, and PEM-Tropics A in August-September at a region relatively free of direct anthropogenic influences. Specifically, we will examine the relative importance of anthropogenic, volcanic and biogenic sources to the SO2 and sulfate concentrations over the Pacific, and quantify the processes controlling the distributions of SO2 and sulfate in both the boundary layer and the free troposphere. We will also assess the global impact of SO2 emission in Asia on the sulfate aerosol loading.
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Details
- Title
- A 3-D Model Analysis of The Impact of Asian Anthropogenic Emissions on the Sulfur Cycle Over the Pacific Ocean
- Creators
- Mian Chin - Goddard Space Flight CenterDonald Thornton - Drexel UniversityAlan Bandy - Drexel UniversityBarry Huebert - University of Hawaii SystemFranco Einaudi
- Conference
- Western Pacific Geophysics (Tokyo, 27 Jun 2000–30 Jun 2000)
- Publisher
- Goddard Space Flight Center
- Resource Type
- Report
- Language
- English
- Academic Unit
- Chemistry; [Retired Faculty]
- Identifiers
- 991022035226104721