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Multi-scale Meteorological Conceptual Model of Observed Active Fire Hotspot Activity and Smoke Optical Depth in the Maritime Continent : Volume 11, Issue 7 (27/07/2011)

By Reid, J. S.

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Book Id: WPLBN0003991522
Format Type: PDF Article :
File Size: Pages 80
Reproduction Date: 2015

Title: Multi-scale Meteorological Conceptual Model of Observed Active Fire Hotspot Activity and Smoke Optical Depth in the Maritime Continent : Volume 11, Issue 7 (27/07/2011)  
Author: Reid, J. S.
Volume: Vol. 11, Issue 7
Language: English
Subject: Science, Atmospheric, Chemistry
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Hyer, E. J., Fukada, E. M., Turk, F. J., Xian, P., Maloney, E. D., Ramirez, E. M.,...Zhang, C. (2011). Multi-scale Meteorological Conceptual Model of Observed Active Fire Hotspot Activity and Smoke Optical Depth in the Maritime Continent : Volume 11, Issue 7 (27/07/2011). Retrieved from

Description: Marine Meteorology Division, Naval Research Laboratory, Monterey, CA, USA. Much research and speculation exists about the meteorological and climatological impacts of biomass burning in the Maritime Continent (MC) of Indonesia and Malaysia, particularly during El Niño events. However, the MC hosts some of the world's most complicated meteorology, and we wish to understand how tropical phenomena at a range of scales influence observed burning activity. Using Moderate Resolution Imaging Spectroradiometer (MODIS) derived active fire hotspot patterns coupled with aerosol data assimilation products, satellite based precipitation, and meteorological indices, the meteorological context of observed fire prevalence and smoke optical depth in the MC are examined. Relationships of burning and smoke transport to such meteorological and climatic factors as the interannual El Niño-Southern Oscillation (ENSO), El Niño Modoki, Indian Ocean Dipole (IOP), the seasonal migration of the Intertropical Convergence Zone, the 30–90 day Madden Julian Oscillation (MJO), tropical waves, tropical cyclone activity, and diurnal convection were investigated. A conceptual model of how all of the differing meteorological scales affect fire activity is presented. Each island and its internal geography have different sensitivities to these factors which are likely relatable to precipitation patterns and land use practices. At the broadest scales as previously reported, we confirm ENSO is indeed the largest factor. However, burning is also enhanced by periods of El Niño Modoki. Conversely IOD influences are unclear. While interannual phenomena correlate to total seasonal burning, the MJO largely controls when visible burning occurs. High frequency phenomena which are poorly constrained in models such as diurnal convection and tropical cyclone activity also have an impact which cannot be ignored. Finally, we emphasize that these phenomena not only influence burning, but also the observability of burning, further complicating our ability to assign reasonable emissions.

Multi-scale meteorological conceptual model of observed active fire hotspot activity and smoke optical depth in the Maritime Continent

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