气候变化领域集成服务门户(CCPortal): Comparison and complementary use of in situ and remote sensing aerosol measurements in the Athens Metropolitan Area

CCPortal

DOI	10.1016/j.atmosenv.2020.117439
	Comparison and complementary use of in situ and remote sensing aerosol measurements in the Athens Metropolitan Area
	Vratolis S.; Fetfatzis P.; Argyrouli A.; Soupiona O.; Mylonaki M.; Maroufidis J.; Kalogridis A.-C.; Manousakas M.; Bezantakos S.; Binietoglou I.; Labzovskii L.D.; Solomos S.; Papayannis A.; Močnik G.; O’ Connor E.; Müller D.; Tzanis C.G.; Eleftheriadis K.
发表日期	2020
ISSN	1352-2310
卷号	228
英文摘要	In the summer of 2014 in situ and remote sensing instruments were deployed in Athens, in order to study the concentration, physical properties, and chemical composition of aerosols. In this manuscript we aim to combine the measurements of collocated in situ and remote sensing instruments by comparison and complementary use, in order to increase the accuracy of predictions concerning climate change and human health. We also develop a new method in order to select days when a direct comparison on in situ and remote sensing instruments is possible. On selected days that displayed significant turbulence up to approximately 1000 m above ground level (agl), we acquired the aerosol extinction or scattering coefficient by in situ instruments using three approaches. In the first approach the aerosol extinction coefficient was acquired by adding a Nephelometer scattering coefficient in ambient conditions and an Aethalometer absorption coefficient. The correlation between the in situ and remote sensing instruments was good (coefficient of determination R2 equal to 0.69). In the second approach we acquired the aerosol refractive index by fitting dry Nephelometer and Aethalometer measurements with Mie algorithm calculations of the scattering and absorption coefficients for the size distribution up to a maximum diameter of 1000 nm obtained by in situ instruments. The correlation in this case was relatively good (R2 equal to 0.56). Our next step was to compare the extinction coefficient acquired by remote sensing instruments to the scattering coefficient calculated by Mie algorithm using the size distribution up to a maximum diameter of 1000 nm and the equivalent refractive index (ERICOR), which is acquired by the comparison of the size distributions obtained by a Scanning Mobility Particle Sizer (SMPS) and an Optical Particle Counter (OPC). The agreement between the in situ and remote sensing instruments in this case was not satisfactory (R2 equal to 0.35). The last comparison for the selected days was between the aerosol extinction Ångström exponent acquired by in situ and remote sensing instruments. The correlation was not satisfactory (R2 equal to 0.4), probably due to differences in the number size distributions present in the air volumes measured by in situ and remote sensing instruments. We also present a day that a Saharan dust event occurred in Athens in order to demonstrate the information we obtain through the synergy of in situ and remote sensing instruments on how regional aerosol is added to local aerosol, especially during pollution events due to long range transport. © 2020 Elsevier Ltd
关键词	Aerosol mixing in the vertical In situ — Remote sensing comparison Regional aerosol addition to local aerosol
语种	英语
scopus关键词	Aerosols; Air pollution; Atmospheric movements; Climate change; Light extinction; Nephelometers; Refractive index; Size distribution; Aerosol extinction coefficient; Aerosol mixing; Coefficient of determination; Equivalent refractive index; Optical particle counters; Remote sensing instruments; Scanning mobility particle sizer; Scattering and absorption; Remote sensing; absorption; aerosol; chemical composition; climate change; extinction coefficient; refractive index; remote sensing; size distribution; turbulence; aerosol; algorithm; article; calculation; climate change; controlled study; human; prediction; refraction index; remote sensing; summer; Athens [Attica]; Attica; Greece
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/249229
作者单位	ERL, Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Centre of Scientific Research “Demokritos”, 15310 Ag. Paraskevi, Attiki, Greece; Laser Remote Sensing Unit, Physics Department, School of Applied Mathematics and Physical Sciences, National Technical University of Athens (NTUA), Zografou, 15780, Greece; Energy, Environment and Water Research Centre, The Cyprus Institute, Nicosia, 2121, Cyprus; Department of Meteorology, University of Reading, Reading, United Kingdom; Finnish Meteorological Institute, Helsinki, Finland; School of Physics, Astronomy and Mathematics, University of HertfordshireHerts AL 10 9AB, United Kingdom; Technical University of Munich, TUM Department of Civil, Geo and Environmental Engineering, Chair of Remote Sensing Technology, Germany; German Aerospace Centre (DLR), Remote Sensing Technology Institute, Oberpfaffenhofen, Wessling, 82234, Germany; National Institute of Research and Development for Optoelectronics, Magurele, Romania; Climate Resear...
推荐引用方式 GB/T 7714	Vratolis S.,Fetfatzis P.,Argyrouli A.,et al. Comparison and complementary use of in situ and remote sensing aerosol measurements in the Athens Metropolitan Area[J],2020,228.
APA	Vratolis S..,Fetfatzis P..,Argyrouli A..,Soupiona O..,Mylonaki M..,...&Eleftheriadis K..(2020).Comparison and complementary use of in situ and remote sensing aerosol measurements in the Athens Metropolitan Area.ATMOSPHERIC ENVIRONMENT,228.
MLA	Vratolis S.,et al."Comparison and complementary use of in situ and remote sensing aerosol measurements in the Athens Metropolitan Area".ATMOSPHERIC ENVIRONMENT 228(2020).