Results 21 to 30 of about 9,888 (260)

Prediction of PM2.5 hourly concentrations in Beijing based on machine learning algorithm and ground-based LiDAR [PDF]

Archives of Environmental Protection, 2021
The prediction of PM2.5 is important for environmental forecasting and air pollution control. In this study, four machine learning methods, ground-based LiDAR data and meteorological data were used to predict the ground-level PM2.5 concentrations in ...
Zhiyuan Fang, Hao Yang, Cheng Li, Liangliang Cheng, Ming Zhao, Chenbo Xie   +5 more
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Analysis of Non-linear Relationship of PM2.5 Mass Concentration with Aerosol Extinction Coefficient and RH in Hefei, China

Aerosol and Air Quality Research, 2023
Optical remote sensing of PM2.5 concentration complements ground-based in situ sampler observations and depends on aerosol extinction-to-mass conversion and meteorological factors.
Yinan Chen, Shiguo Zhang, Yonghua Wu, Kee Yuan, Jian Huang, Dongfeng Shi, Shunxing Hu   +6 more
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Prediction of Aerosol Extinction Coefficient in Coastal Areas of South China Based on Attention-BiLSTM

Journal of Marine Science and Engineering, 2022
The aerosol extinction coefficient (AEC) characterises the attenuation of the light propagating in a turbid medium with suspended particles. Therefore, it is of great significance to carry out AEC prediction research using state-of-art neural network (NN)
Zhou Ye, Shengcheng Cui, Zhi Qiao, Zihan Zhang, Wenyue Zhu, Xuebin Li, Xianmei Qian   +6 more
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Siberian lidar station: instruments and results

EPJ Web of Conferences, 2018
The Siberian Lidar Station created at V.E. Zuev Institute of Atmospheric Optics and operating in Tomsk (56.5° N, 85.0° E) is a unique atmospheric observatory.
Matvienko Gennadii G., Balin Yurii S., Bobrovnikov Sergey M., Romanovskii Oleg A., Kokhanenko Grigirii P., Samoilova Svetlana V., Penner Ioganes E., Gorlov Evgenii V., Zharkov Victir I., Sadovnikov Sergey A., Yakovlev Semen V., Bazhenov Oleg E., Dolgii Sergey I., Makeev Andrey P., Nevzorov Alexey A., Nevzorov Alexey V., Kharchenko Olga V.   +16 more
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Retrieval of aerosol properties from zenith sky radiance measurements [PDF]

Atmospheric Measurement Techniques, 2023
This study explores the potential to retrieve aerosol properties with the GRASP algorithm (Generalized Retrieval of Atmosphere and Surface Properties) using as input measurements of zenith sky radiance (ZSR), which are sky radiance values measured in the
S. Herrero-Anta, R. Román, D. Mateos, R. González, J. C. Antuña-Sánchez, M. Herreras-Giralda, A. F. Almansa, A. F. Almansa, D. González-Fernández, C. Herrero del Barrio, C. Toledano, V. E. Cachorro, Á. M. de Frutos   +12 more
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Atmospheric Optical Phenomena [PDF]

Science, 1914
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openaire   +3 more sources

Characteristics of Aerosol Extinction Hygroscopic Growth in the Typical Coastal City of Qingdao, China

Remote Sensing, 2022
The aerosol hygroscopic growth (HG) characteristics in coastal areas are very complex, which is one of the main influences on the simulation accuracy of radiation transfer modeling for coastal environments.
Nana Liu, Shengcheng Cui, Tao Luo, Shunping Chen, Kaixuan Yang, Xuebin Ma, Gang Sun, Xuebin Li   +7 more
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Refractive Index Sensing Based on Multiple Fano Resonances in a Split-Ring Cavity-Coupled MIM Waveguide

Photonics, 2021
A metal–insulator–metal (MIM) waveguide consisting of a circular split-ring resonance cavity (CSRRC) and a double symmetric rectangular stub waveguide (DSRSW) is designed, which can excite quadruple Fano resonances.
Jianfeng Chen, Hao Yang, Zhiyuan Fang, Ming Zhao, Chenbo Xie   +4 more
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Optomechanical Design and Application of Solar-Skylight Spectroradiometer

Sensors, 2021
Using a solar radiometer is an effective approach for improving the remote sensing of solar irradiance distribution and atmospheric composition. Long-term development of a solar scanning radiometer enables frequent and reliable measurement of atmospheric
Zhaoyang Qi, Jianyu Li, Wenqing Xu, Wenyue Zhu, Fengying Sun, Yao Huang, Gang Xu, Congming Dai   +7 more
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Lidar Measurements of Ozone in the Upper Troposphere – Lower Stratosphere at Siberian Lidar Station in Tomsk

EPJ Web of Conferences, 2016
The paper presents the results of DIAL measurements of the vertical ozone distribution at the Siberian lidar station. Sensing is performed according to the method of differential absorption and scattering at wavelength pair of 299/341 nm, which are ...
Romanovskii O. A., Dolgii S.I., Burlakov V. D., Nevzorov A.A., Nevzorov A. V.   +4 more
doaj   +1 more source