Understanding the Evolution of Smoke Mass Extinction Efficiency Using Field Campaign Measurements

Understanding the Evolution of Smoke Mass Extinction Efficiency Using Field Campaign Measurements

© 2022 The Authors.

Bibliographische Detailangaben
Veröffentlicht in:Geophysical research letters. - 1984. - 49(2022), 18 vom: 28. Sept., Seite e2022GL099175
1. Verfasser: Saide, Pablo E (VerfasserIn)
Weitere Verfasser: Thapa, Laura H, Ye, Xinxin, Pagonis, Demetrios, Campuzano-Jost, Pedro, Guo, Hongyu, Schuneman, Melinda L, Jimenez, Jose-Luis, Moore, Richard, Wiggins, Elizabeth, Winstead, Edward, Robinson, Claire, Thornhill, Lee, Sanchez, Kevin, Wagner, Nicholas L, Ahern, Adam, Katich, Joseph M, Perring, Anne E, Schwarz, Joshua P, Lyu, Ming, Holmes, Christopher D, Hair, Johnathan W, Fenn, Marta A, Shingler, Taylor J
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Geophysical research letters
Schlagworte:Journal Article aging mass extinction efficiency mass scattering efficiency refractive index smoke wildfire
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520 |a Aerosol mass extinction efficiency (MEE) is a key aerosol property used to connect aerosol optical properties with aerosol mass concentrations. Using measurements of smoke obtained during the Fire Influence on Regional to Global Environments and Air Quality (FIREX-AQ) campaign we find that mid-visible smoke MEE can change by a factor of 2-3 between fresh smoke (<2 hr old) and one-day-old smoke. While increases in aerosol size partially explain this trend, changes in the real part of the aerosol refractive index (real(n)) are necessary to provide closure assuming Mie theory. Real(n) estimates derived from multiple days of FIREX-AQ measurements increase with age (from 1.40 - 1.45 to 1.5-1.54 from fresh to one-day-old) and are found to be positively correlated with organic aerosol oxidation state and aerosol size, and negatively correlated with smoke volatility. Future laboratory, field, and modeling studies should focus on better understanding and parameterizing these relationships to fully represent smoke aging 
650 4 |a Journal Article 
650 4 |a aging 
650 4 |a mass extinction efficiency 
650 4 |a mass scattering efficiency 
650 4 |a refractive index 
650 4 |a smoke 
650 4 |a wildfire 
700 1 |a Thapa, Laura H  |e verfasserin  |4 aut 
700 1 |a Ye, Xinxin  |e verfasserin  |4 aut 
700 1 |a Pagonis, Demetrios  |e verfasserin  |4 aut 
700 1 |a Campuzano-Jost, Pedro  |e verfasserin  |4 aut 
700 1 |a Guo, Hongyu  |e verfasserin  |4 aut 
700 1 |a Schuneman, Melinda L  |e verfasserin  |4 aut 
700 1 |a Jimenez, Jose-Luis  |e verfasserin  |4 aut 
700 1 |a Moore, Richard  |e verfasserin  |4 aut 
700 1 |a Wiggins, Elizabeth  |e verfasserin  |4 aut 
700 1 |a Winstead, Edward  |e verfasserin  |4 aut 
700 1 |a Robinson, Claire  |e verfasserin  |4 aut 
700 1 |a Thornhill, Lee  |e verfasserin  |4 aut 
700 1 |a Sanchez, Kevin  |e verfasserin  |4 aut 
700 1 |a Wagner, Nicholas L  |e verfasserin  |4 aut 
700 1 |a Ahern, Adam  |e verfasserin  |4 aut 
700 1 |a Katich, Joseph M  |e verfasserin  |4 aut 
700 1 |a Perring, Anne E  |e verfasserin  |4 aut 
700 1 |a Schwarz, Joshua P  |e verfasserin  |4 aut 
700 1 |a Lyu, Ming  |e verfasserin  |4 aut 
700 1 |a Holmes, Christopher D  |e verfasserin  |4 aut 
700 1 |a Hair, Johnathan W  |e verfasserin  |4 aut 
700 1 |a Fenn, Marta A  |e verfasserin  |4 aut 
700 1 |a Shingler, Taylor J  |e verfasserin  |4 aut 
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