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Analysis of Convective Transport of Biomass Burning Emissions in Southeast Asia

Title: Analysis of Convective Transport of Biomass Burning Emissions in Southeast Asia.
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Name(s): Ahern, Kyle, author
Department of Earth, Ocean and Atmospheric Sciences
Type of Resource: text
Genre: Text
Issuance: serial
Date Issued: 2013
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: Biomass burning and anthropogenic emissions affect the composition of the atmosphere, thereby impacting global climate and health. Deep convective processes can loft emissions from the boundary layer into the upper troposphere or lower stratosphere (UTLS). Strong upper-level winds can potentially transport the emissions over long distances. This study focused on the deep convective transport of biomass burning emissions near the Strait of Malacca during summer. The Weather Research and Forecasting (WRF) and Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT_4) models were used to investigate deep convection and the transport of emissions from fires in the region. Fire data from the Moderate-resolution Imaging Spectroradiometer (MODIS) sensors onboard the Aqua and Terra satellites provided locations of fire emissions. These fire datasets were obtained from the University of Maryland's Fire Information for Resource Management System (FIRMS). To investigate the deep convective processes thoroughly, this study used high resolution modeling (4 km grid spacing) to resolve the convection explicitly. Explicit resolution allows the thunderstorms to be simulated more realistically than would parameterization, thus making it ideal for this research. Results showed that deep convection occurring in the Strait of Malacca is driven primarily by diurnal heating patterns and the region's topography. Convection in the region is frequent and scattered, but follows a cyclic diurnal pattern: convection over land during daytime and over the Strait during nighttime. When emissions from fires encounter areas of deep convection, they are quickly lofted to the UTLS where winds then transport them elsewhere.
Identifier: FSU_migr_uhm-0216 (IID)
Keywords: convection, biomass, transport, fire, mesoscale, Asia, pollution
Submitted Note: A Thesis submitted to the Department of Earth, Ocean, and Atmospheric Science in partial fulfillment of the requirements for graduation with Honors in the Major.
Degree Awarded: Spring Semester, 2013.
Date of Defense: April 11, 2013.
Subject(s): Atmospheric physics
Atmospheric sciences
Meteorology
Persistent Link to This Record: http://purl.flvc.org/fsu/fd/FSU_migr_uhm-0216
Restrictions on Access: http://creativecommons.org/licenses/by/3.0/
Owner Institution: FSU
Is Part of Series: Honors Theses.

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Ahern, K. (2013). Analysis of Convective Transport of Biomass Burning Emissions in Southeast Asia. Retrieved from http://purl.flvc.org/fsu/fd/FSU_migr_uhm-0216