干旱区生态环境知识资源中心(Arid): Characterization of forest fire and Saharan desert dust aerosols over south-western Europe using a multi-wavelength Raman lidar and Sun-photometer

Arid

DOI	10.1016/j.atmosenv.2021.118346
	Characterization of forest fire and Saharan desert dust aerosols over south-western Europe using a multi-wavelength Raman lidar and Sun-photometer
	Salgueiro, Vanda; Costa, Maria Joao; Guerrero-Rascado, Juan Luis; Couto, Flavio T.; Bortoli, Daniele
通讯作者	Salgueiro, V (corresponding author), Inst Ciencias Terra ICT, Polo Evora, Evora, Portugal.
来源期刊	ATMOSPHERIC ENVIRONMENT
ISSN	1352-2310
EISSN	1873-2844
出版年	2021
卷号	252
英文摘要	In the morning of 21 July 2019, a dense forest fire smoke plume was detected over ?Evora (Portugal) in the lower troposphere. Around 13:00 UTC, a Sahara dust layer was detected by lidar between 3000 and 4000 m height above sea level. In this work results of these events using an EARLINET Raman lidar and AERONET Sunphotometer measurements are reported and discussed: the dense smoke layer, the mixing of smoke with dust and the lofted dust layer that crossed ?Evora. During the morning, in-situ hourly mean black carbon concentration reached a maximum of 6.28 ? 0.73 ?gm? 3. The AERONET fine mode aerosol optical depth at 500 nm reached 0.77 and the ?ngstro?m exponent at 440?870 nm varied between 1.45 and 1.82, indicating the presence of fine smoke particles in the atmospheric column. In the beginning of the afternoon, the lidar profiles indicated the presence of a smoke layer followed by two thin layers of pollution mixed with dust and a lofted dust layer. The smoke particles caused low particle linear depolarization ratios at 532 nm with mean value of 0.059 ? 0.002 in the smoke layer. In contrast, the lofted dust layer caused mean particle linear depolarization ratio at 532 nm of 0.26 ? 0.01. Mass concentrations were in the order of 22?29 ?g m? 3 in the smoke layer and 60?178 ?g m? 3 in the lofted dust layer. During the afternoon and at night, mixing dust layers were identified by using lidar data. In the afternoon, two aerosol layers exhibited mean particle linear depolarization ratios at 532 nm of 0.23 ? 0.01 and 0.25 ? 0.01 with the dust dominating the extinction and mass concentration in both aerosol layers. Mass concentrations of dust were in the order of 101?266 ?g m? 3 and 159?195 ?g m? 3. At night, the particle linear depolarization ratio presented low variability across the identified layer with mean value of 0.20 ? 0.01. The ?ngstro?m exponents were low, the mean lidar ratios were 50 ? 6 sr (355 nm) and 42 ? 4 sr (532 nm) and the aerosol optical depth was 0.32 (355 nm) and 0.30 (532 nm). Mass concentrations ranged in 10?28 ?g m- 3 for non-dust and in 77?186 ?g m? 3 for dust.
英文关键词	Raman lidar Sun-photometer Smoke Desert dust Aerosol optical properties Aerosol microphysical properties
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000640897300003
WOS关键词	SINGLE CALCULUS CHAIN ; OPTICAL-PROPERTIES ; IBERIAN PENINSULA ; COARSE DUST ; PART 1 ; BACKSCATTER ; EXTINCTION ; EARLINET ; SMOKE ; ABSORPTION
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349639
作者单位	[Salgueiro, Vanda; Costa, Maria Joao; Couto, Flavio T.; Bortoli, Daniele] Inst Ciencias Terra ICT, Polo Evora, Evora, Portugal; [Salgueiro, Vanda; Costa, Maria Joao; Couto, Flavio T.; Bortoli, Daniele] Earth Remote Sensing Lab EaRSLab, Evora, Portugal; [Salgueiro, Vanda; Couto, Flavio T.] Univ Evora, Rua Romao Ramalho 59, P-7000671 Evora, Portugal; [Costa, Maria Joao; Bortoli, Daniele] Univ Evora, Dept Fis, Escola Ciencias & Tecnol, Rua Romao Ramalho 59, P-7000671 Evora, Portugal; [Guerrero-Rascado, Juan Luis] Inst Invest Sistema Tierra Andalucia IISTA CEAMA, Granada 18006, Spain; [Guerrero-Rascado, Juan Luis] Univ Granada, Dept Fis Aplicada, Granada 18071, Spain
推荐引用方式 GB/T 7714	Salgueiro, Vanda,Costa, Maria Joao,Guerrero-Rascado, Juan Luis,et al. Characterization of forest fire and Saharan desert dust aerosols over south-western Europe using a multi-wavelength Raman lidar and Sun-photometer[J],2021,252.
APA	Salgueiro, Vanda,Costa, Maria Joao,Guerrero-Rascado, Juan Luis,Couto, Flavio T.,&Bortoli, Daniele.(2021).Characterization of forest fire and Saharan desert dust aerosols over south-western Europe using a multi-wavelength Raman lidar and Sun-photometer.ATMOSPHERIC ENVIRONMENT,252.
MLA	Salgueiro, Vanda,et al."Characterization of forest fire and Saharan desert dust aerosols over south-western Europe using a multi-wavelength Raman lidar and Sun-photometer".ATMOSPHERIC ENVIRONMENT 252(2021).