Examination of effects of aerosols on a pyroCb and their dependence on fire intensity and aerosol perturbation
- 주제(기타) Environmental Sciences
- 주제(기타) Meteorology & Atmospheric Sciences
- 설명문(일반) [Lee, Seoung Soo; Kablick, George, III; Li, Zhanqing] Univ Maryland, Earth Syst Sci Interdisciplinary Ctr, College Pk, MD 20742 USA; [Kablick, George, III] US Naval Res Lab, Washington, DC USA; [Jung, Chang Hoon] Kyungin Womens Univ, Dept Hlth Management, Incheon, South Korea; [Choi, Yong-Sang] Ewha Womans Univ, Dept Environm Sci & Engn, Seoul, South Korea; [Um, Junshik] Pusan Natl Univ, Div Earth Environm Syst, Dept Atmospher Sci, Busan, South Korea; [Choi, Won Jun] Natl Inst Environm Res, Incheon, South Korea
- 관리정보기술 faculty
- 등재 SCIE, SCOPUS
- OA유형 Green Submitted, gold
- 발행기관 COPERNICUS GESELLSCHAFT MBH
- 발행년도 2020
- URI http://www.dcollection.net/handler/ewha/000000168667
- 본문언어 영어
- Published As https://dx.doi.org/10.5194/acp-20-3357-2020
초록/요약
Using a modeling framework, this study investigates how a pyrocumulonimbus (pyroCb) event influences water vapor concentrations and cirrus-cloud properties near the tropopause, specifically focusing on how fire-produced aerosols affect this role. Results from a case study show that when observed fire intensity is high, there is an insignificant impact of fire-produced aerosols on the development of the pyroCb and associated changes in water vapor and cirrus clouds near the tropopause. However, as fire intensity weakens, effects of those aerosols on microphysical variables and processes such as droplet size and autoconversion increase. Due to this, aerosol-induced invigoration of convection is significant for pyroCb with weak-intensity fires and associated weak surface heat fluxes. This leads to a situation where there is a greater aerosol effect on the transport of water vapor to the upper troposphere and the production of cirrus clouds with weak-intensity fires, whereas this effect is muted with strong-intensity fires.
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