Hygroscopic growth of atmospheric aerosol particles based on lidar, radiosonde, and in situ measurements: Case studies from the Xinzhou field campaign

Lv, Min; Li, Zhanqing; Mao, Jiandong; Sun, Yele; Wang, Zhenzhu; Wang, Yingjian; Xie, Chenbo

doi:10.1016/j.jqsrt.2015.12.029

Cited by 37 publications

(43 citation statements)

References 24 publications

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“…Fernández et al (2015) reported a similar γ 532 value of 0.59 in Cabauw (Netherlands) associated with a high concentration of organic particles, while they observed a significantly larger γ 532 of 0.88 associated with marine particles. Lower values are reported by Lv et al (2017) in one of their case studies (γ 532 = 0.24 and γ 355 = 0.12) in Xinzhou (China) associated with the presence of dust particles. Although the behavior of the backscatter coefficient at enhanced RH is expected to differ from the scattering coefficient, a qualitative comparison can be performed due to the scarcity of backscatter-related γ values in the literature.…”

Section: F λ β (Rh) Measured and Retrieved By Combining In Situ Data mentioning

confidence: 72%

“…In order to evaluate the atmospheric vertical mixing, virtual potential temperature (θ v (z)) and r (z) profiles are analyzed. The low vertical variability of those variables suggests atmospheric vertical homogeneity in the layer of study (Veselovskii et al, 2009;Fernández et al, 2015;Granados-Muñoz et al, 2015;Lv et al, 2017). In addition, horizontal and vertical wind velocities and directions retrieved from the lidar Doppler system operated at the Granada station were also considered.…”

Section: Selection Criteria For Hygroscopic Casesmentioning

confidence: 99%

“…Remote sensing systems such as lidars have also been used in recent decades for aerosol hygroscopic growth studies performed with co-located radiosounding (RS) measurements (e.g., Ferrare et al, 1998;Feingold et al, 2003;Veselovskii et al, 2009;Granados-Muñoz et al, 2015;Fernández et al, 2015;Lv et al, 2017). These systems have been shown to be robust, with high vertical and temporal resolutions that allow for study of the aerosol hygroscopic growth under unmodified ambient conditions.…”

Section: Introductionmentioning

confidence: 99%

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Hygroscopic growth study in the framework of EARLINET during the SLOPE I campaign: synergy of remote sensing and in situ instrumentation

et al. 2018

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Abstract. This study focuses on the analysis of aerosol hygroscopic growth during the Sierra Nevada Lidar AerOsol Profiling Experiment (SLOPE I) campaign by using the synergy of active and passive remote sensors at the ACTRIS Granada station and in situ instrumentation at a mountain station (Sierra Nevada, SNS). To this end, a methodology based on simultaneous measurements of aerosol profiles from an EARLINET multi-wavelength Raman lidar (RL) and relative humidity (RH) profiles obtained from a multi-instrumental approach is used. This approach is based on the combination of calibrated water vapor mixing ratio (r) profiles from RL and continuous temperature profiles from a microwave radiometer (MWR) for obtaining RH profiles with a reasonable vertical and temporal resolution. This methodology is validated against the traditional one that uses RH from colocated radiosounding (RS) measurements, obtaining differences in the hygroscopic growth parameter (γ ) lower than 5 % between the methodology based on RS and the one presented here. Additionally, during the SLOPE I campaign the remote sensing methodology used for aerosol hygroscopic growth studies has been checked against Mie calculations of aerosol hygroscopic growth using in situ measurements of particle number size distribution and submicron chemical composition measured at SNS. The hygroscopic case observed during SLOPE I showed an increase in the particle backscatter coefficient at 355 and 532 nm with relative humidity (RH ranged between 78 and 98 %), but also a decrease in the backscatter-related Ångström exponent (AE) and particle linear depolarization ratio (PLDR), indicating that the particles became larger and more spherical due to hygroscopic processes. Vertical and horizontal wind analysis is performed by means of a co-located Doppler lidar system, in order to evaluate the horizontal and vertical dynamics of the air masses. Finally, the Hänel parameterizaPublished by Copernicus Publications on behalf of the European Geosciences Union. 7002A. E. Bedoya-Velásquez et al.: Hygroscopic growth study in the framework of the SLOPE I campaign tion is applied to experimental data for both stations, and we found good agreement on γ measured with remote sensing (γ 532 = 0.48 ± 0.01 and γ 355 = 0.40 ± 0.01) with respect to the values calculated using Mie theory (γ 532 = 0.53 ± 0.02 and γ 355 = 0.45 ± 0.02), with relative differences between measurements and simulations lower than 9 % at 532 nm and 11 % at 355 nm.

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Section: F λ β (Rh) Measured and Retrieved By Combining In Situ Data mentioning

confidence: 72%

Section: Selection Criteria For Hygroscopic Casesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Hygroscopic growth study in the framework of EARLINET during the SLOPE I campaign: synergy of remote sensing and in situ instrumentation

et al. 2018

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“…In order to evaluate the atmospheric vertical mixing, virtual potential temperature ( ( )) 20 and ( ) profiles are analyzed. Low vertical variability of those variables suggests atmospheric vertical homogeneity in the layer of study (Veselovskii et al, 2009;Fernández et al, 2015;Granados-Muñoz et al, 2015;Lv et al, 2017). In addition, horizontal and vertical wind velocities and directions retrieved from the lidar Doppler system operated at Granada station were considered.…”

Section: Selection Criteria For Hygroscopic Casesmentioning

confidence: 99%

“…Remote sensing systems such as lidars have also been used in the last decades for aerosol hygroscopic growth studies performed with co-located RS measurements (e. g. Ferrare et al, 1998;Feingold et al, 2003;Veselovskii et al, 2009;Granados-Muñoz et al, 2015;Fernández et al, 2015;Lv et al, 2017). These systems have shown to be robust with high vertical and temporal resolution that allow for studying the aerosol hygroscopic growth under unmodified ambient conditions.…”

mentioning

confidence: 99%

Hygroscopic growth study in the framework of EARLINET during the SLOPE I campaign: synergy of remote sensing and in-situ instrumentation

Bedoya-Velásquez¹,

Navas-Guzmán²,

Granados-Muñoz³

et al. 2017

Preprint

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25This work focuses on the study of aerosol hygroscopic growth during Sierra Nevada Lidar AerOsol Profiling Experiment (SLOPE I) campaign by using the synergy of active and passive remote sensors at Granada valley station (IISTA-CEAMA station) and in-situ instrumentation at a mountain station (Sierra Nevada station, SNS), located ~20 km away from IISTA-CEAMA and about 1 km above this station. To this end, a methodology based on the combination of calibrated water vapour mixing ratio ( ) profiles, retrieved from an EARLINET multiwavelength Raman lidar (RL), and continuous temperature 30 profiles from a microwave radiometer (MWR) for obtaining relative humidity ( ) profiles with high temporal resolution is used. This methodology is validated against an approach using radiosounding (RS) data at the EARLINET IISTA-CEAMA station, achieving differences in hygroscopic growth parameter ( ) lower than 5% between the methodology based on RS and that based on remote sensing. During SLOPE I the remote sensing methodology used for aerosol hygroscopic growth studies has been checked using Mie calculations with in-situ measurements at SNS. For SLOPE I case with remote sensing 35 instrumentation, an increase in particle backscatter coefficient at 355 and 532 nm is observed from 1.5 to 2.4 km a.s.l. in the 2 relative humidity range of 78-98%, but also a decrease on Ångström exponent (AE) and particle linear depolarization ratio (PLDR). This fact indicates that particles become larger and more spherical as relative humidity increases, what is strongly related to aerosol hygroscopic growth. In addition, atmospheric stability is checked ensuring well-mixed layers.Vertical and horizontal wind analysis is performed by means of a co-located Doppler lidar system at IISTA-CEAMA station, in order to evaluate the horizontal and vertical dynamics of the air masses. Finally, the Hänel parameterization is applied to 5 experimental data for both stations, obtaining relative differences between RL and Mie simulations up to 13 % and 10 % for 532 nm and 355 nm, respectively.

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Effect of aerosol hygroscopic growth on radiative forcing based on a Raman lidar

Wang

Mao

Zhang

2023

Air Qual Atmos Health

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Hygroscopic growth of atmospheric aerosol particles based on lidar, radiosonde, and in situ measurements: Case studies from the Xinzhou field campaign

Cited by 37 publications

References 24 publications

Hygroscopic growth study in the framework of EARLINET during the SLOPE I campaign: synergy of remote sensing and in situ instrumentation

Hygroscopic growth study in the framework of EARLINET during the SLOPE I campaign: synergy of remote sensing and in situ instrumentation

Hygroscopic growth study in the framework of EARLINET during the SLOPE I campaign: synergy of remote sensing and in-situ instrumentation

Effect of aerosol hygroscopic growth on radiative forcing based on a Raman lidar

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