Study of the vertical variability of aerosol properties based on cable cars in-situ measurements

Zawadzka, Olga; Posyniak, M.; Nelken, K.; Markuszewski, Piotr; Chiliński, Michał T.; Czyzewska, Dominika; Lisok, Justyna; Markowicz, Krzysztof M.

doi:10.1016/j.apr.2017.03.009

Cited by 15 publications

(4 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Low-cost sensors are used not only for monitoring the air quality at the Earth's surface, but also for profiling the low troposphere. These sensors are mounted on unmanned aerial vehicles (UAV; [29,30]), tethered balloons [31][32][33][34], and cable cars [35] and provide information on the microphysical and optical vertical structure of aerosol in PBL. In addition, Markowicz et al [34] developed a method for retrieving the profiles of aerosol optical properties (single-scattering albedo) on the basis of a combination of soundings made with a miniaturized aethalometer (to measure the absorption coefficient) mounted on a tethered balloon and Raman lidar (to measure the aerosol extinction coefficient) profiling.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Two Low-Cost Optical Particle Counters for the Measurement of Ambient Aerosol Scattering Coefficient and Ångström Exponent

Markowicz

Chiliński

2020

Sensors

View full text Add to dashboard Cite

The aerosol scattering coefficient and Ångström exponent (AE) are important parameters in the understanding of aerosol optical properties and aerosol direct effect. These parameters are usually measured by a nephelometer network which is under-represented geographically; however, a rapid growth of air-pollution monitoring, using low-cost particle sensors, may extend observation networks. This paper presents the results of co-located measurements of aerosol optical properties, such as the aerosol scattering coefficient and the scattering AE, using low-cost sensors and using a scientific-grade polar Aurora 4000 nephelometer. A high Pearson correlation coefficient (0.94–0.96) between the low-cost particulate matter (PM) mass concentration and the aerosol scattering coefficient was found. For the PM10 mass concentration, the aerosol scattering coefficient relation is linear for the Dfrobot SEN0177 sensor and non-linear for the Alphasense OPC-N2 device. After regression analyses, both low-cost instruments provided the aerosol scattering coefficient with a similar mean square error difference (RMSE) of about 20 Mm−1, which corresponds to about 27% of the mean aerosol scattering coefficient. The relative uncertainty is independent of the pollution level. In addition, the ratio of aerosol number concentration between different bins showed a significant statistical (95% of confidence level) correlation with the scattering AE. For the SEN0177, the ratio of the particle number in bin 1 (radius of 0.15–0.25 µm) to bin 4 (radius of 1.25–2.5 µm) was a linear function of the scattering AE, with a Pearson correlation coefficient of 0.74. In the case of OPC-N2, the best correlation (r = 0.66) was found for the ratio between bin 1 (radius of 0.19–0.27 µm) and bin 2 (radius of 0.27–0.39 µm). Comparisons of an estimated scattering AE from a low-cost sensor with Aurora 4000 are given with the RMSE of 0.23–0.24, which corresponds to 16–19%. In addition, a three-year (2016–2019) observation by SEN0177 indicates that this sensor can be used to determine an annual cycle as well as a short-term variability.

show abstract

Section: Introductionmentioning

confidence: 99%

Evaluation of Two Low-Cost Optical Particle Counters for the Measurement of Ambient Aerosol Scattering Coefficient and Ångström Exponent

Markowicz

Chiliński

2020

Sensors

View full text Add to dashboard Cite

show abstract

“…In both cases, the FUW mobile laboratory, with aerosol microphysical and optical properties devices situated at the bottom of the valley, was used to identify aerosol single-scattering properties. Results from Krynica Zdroj [56] show a significant correlation between the air temperature gradient and the difference in extinction and scattering coefficients between the valley and mountain top. In addition, data obtained from OPC-N2 indicates a significant vertical variability of fog and smog microphysical parameters.…”

Section: Field Campaign Activitymentioning

confidence: 97%

A Decade of Poland-AOD Aerosol Research Network Observations

et al. 2021

View full text Add to dashboard Cite

The Poland-AOD aerosol research network was established in 2011 to improve aerosol–climate interaction knowledge and provide a real-time and historical, comprehensive, and quantitative database for the aerosol optical properties distribution over Poland. The network consists of research institutions and private owners operating 10 measurement stations and an organization responsible for aerosol model transport simulations. Poland-AOD collaboration provides observations of spectral aerosol optical depth (AOD), Ångstrom Exponent (AE), incoming shortwave (SW) and longwave (LW) radiation fluxes, vertical profiles of aerosol optical properties and surface aerosol scattering and absorption coefficient, as well as microphysical particle properties. Based on the radiative transfer model (RTM), the aerosol radiative forcing (ARF) and the heating rate are simulated. In addition, results from GEM-AQ and WRF-Chem models (e.g., aerosol mass mixing ratio and optical properties for several particle chemical components), and HYSPLIT back-trajectories are used to interpret the results of observation and to describe the 3D aerosol optical properties distribution. Results of Poland-AOD research indicate progressive improvement of air quality and at mospheric turbidity during the last decade. The AOD was reduced by about 0.02/10 yr (at 550 nm), which corresponds to positive trends in ARF. The estimated clear-sky ARF trend is 0.34 W/m2/10 yr and 0.68 W/m2/10 yr, respectively, at TOA and at Earth’s surface. Therefore, reduction in aerosol load observed in Poland can significantly contribute to climate warming.

show abstract

“…In addition, researchers propose using a convenient cable car for planetary boundary layer (pBl) observations in mountainous areas [43]. transportation with cable cars can be a sustainable public transport in the future.…”

Section: Future Transportationmentioning

confidence: 99%

Design of Nature tourism transportation in Kulon Progo from Yogyakarta International Airport to Borobudur

Basuki¹,

Handoko²

2022

Int. J. TDI

View full text Add to dashboard Cite

Starting april 29, 2022, New Yogyakarta International airport (YIa) will open international flights. public transportation from YIa to natural tourist destinations does not yet exist because of the up and down road conditions, and the road width varies from 2.5 to 7.5 m. this study will design an intelligent medium-sized vehicle using the Internet of things (Iot) for nature tourism transportation from YIa to Borobudur. the plan is for the current state of the coVID-19 pandemic and its challenges. this study uses observations and interviews to collect data to examine experiential aspects of natural tourism transportation in 2021. the data collected is on nature tourism packages and transportation from YIa to Borobudur. the result is an intelligent medium-sized vehicle design with 18 seats consisting of 16 passenger seats, one driver seat and one tour guide seat. the vehicle is equipped with three cctVs or video cameras, global positioning system (GpS) sensors on cars to monitor vehicle position and fuel consumption, motion sensors, GpS on mobile phones, rfID sensors and other Iot sensors. the proposed vehicle is feasible with a load factor is 75% and fare IDr 200,000/passenger, then the benefit-cost ratio is 1.3118, the payback period is 2 years and 11 months, and the internal rate return is 0.506491.

show abstract

Study of the vertical variability of aerosol properties based on cable cars in-situ measurements

Cited by 15 publications

References 26 publications

Evaluation of Two Low-Cost Optical Particle Counters for the Measurement of Ambient Aerosol Scattering Coefficient and Ångström Exponent

Evaluation of Two Low-Cost Optical Particle Counters for the Measurement of Ambient Aerosol Scattering Coefficient and Ångström Exponent

A Decade of Poland-AOD Aerosol Research Network Observations

Design of Nature tourism transportation in Kulon Progo from Yogyakarta International Airport to Borobudur

Contact Info

Product

Resources

About