globalchange  > 气候减缓与适应
DOI: 10.1029/2017JD027927
Scopus记录号: 2-s2.0-85052239944
论文题名:
Satellite-Observed Impacts of Wildfires on Regional Atmosphere Composition and the Shortwave Radiative Forcing: A Multiple Case Study
作者: Fu Y.; Li R.; Huang J.; Bergeron Y.; Fu Y.; Wang Y.; Gao Z.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2018
卷: 123, 期:15
起始页码: 8326
结束页码: 8343
语种: 英语
英文关键词: direct shortwave radiative forcing ; emission rate ; fire radiative power ; satellite remote sensing ; wildfire
英文摘要: Emissions of aerosols and trace gases from wildfires and their direct shortwave radiative forcing (DSRF) at the top of atmosphere were studied using satellite observations from Moderate-Resolution Imaging Spectroradiometer, Atmospheric Infrared Sounder, Clouds and Earth Radiant Energy System on Aqua, and Ozone Monitoring Instrument on Aura. The dominant fuel types of the selected fire cases in the northeast of China (NEC), Siberia (Russia), and California (USA) are cropland, mixed forest, and needle-leaf forest, respectively. For the cropland fire case in NEC, the fire radiative power-based emission coefficients (Ce) of aerosol is 20.51 ± 2.55 g/MJ, half that of the forest fire cases in Siberia (40.01 ± 9.21 g/MJ) and California (45.23 ± 8.81 g/MJ), and the carbon monoxide (CO) Ce (23.94 ± 11.83 g/MJ) was about one third and half that of the forest fire cases in Siberia and California, respectively. However, the NOx (NO2 + NO) Ce (2.76 ± 0.25g MJ−1) of the cropland fire in NEC was nearly 3 times that of those forest fire cases. Ratios of NOx to aerosol, HCHO, and CO in the cropland case in NEC show much higher values than those in the forest fire cases. Despite the differences of the Ce and the composition ratios, the DSRF efficiency of smoke aerosol at the top of atmosphere showed similar values among those fire cases. Our results highlight the large variability of emission rate and relative chemical composition but similar DSRF efficiencies among wildfires, which would provide valuable information for understanding the impact of fire on air quality and climate. ©2018. American Geophysical Union. All Rights Reserved.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113283
Appears in Collections:气候减缓与适应

Files in This Item:

There are no files associated with this item.


作者单位: School of Earth and Space Sciences, University of Science and Technology of China, Hefei, China; Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China; Institut de recherche sur les forêts, Université du Québec en Abitibi-Témiscamingue (UQAT), Rouyn-Noranda, QC, Canada; Institute of Meteorological Sciences of Jilin Province, Jilin Provincial Key Laboratory of Changbai Mountain Meteorology and Climate Change, Laboratory of Research for Middle-High Latitude Circulation and East Asian Monsoon, Changchun, China

Recommended Citation:
Fu Y.,Li R.,Huang J.,et al. Satellite-Observed Impacts of Wildfires on Regional Atmosphere Composition and the Shortwave Radiative Forcing: A Multiple Case Study[J]. Journal of Geophysical Research: Atmospheres,2018-01-01,123(15)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Fu Y.]'s Articles
[Li R.]'s Articles
[Huang J.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Fu Y.]'s Articles
[Li R.]'s Articles
[Huang J.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Fu Y.]‘s Articles
[Li R.]‘s Articles
[Huang J.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.