A5078075008- Atmospheric chemistry and aerosols
- Air Quality and Health Impacts
- Air Quality Monitoring and Forecasting
- Atmospheric aerosols and clouds
- Atmospheric and Environmental Gas Dynamics
- Aerospace and Aviation Technology
- Advanced Aircraft Design and Technologies
- Wind and Air Flow Studies
- Aerospace Engineering and Control Systems
- Aerospace Engineering and Applications
- Air Traffic Management and Optimization
- Meteorological Phenomena and Simulations
- Aerospace Engineering and Energy Systems
Peking University
2022-2025
State Key Joint Laboratory of Environment Simulation and Pollution Control
2022-2024
Institute of Atmospheric Physics
2020-2021
Chinese Academy of Sciences
2020-2021
University of Chinese Academy of Sciences
2020-2021
Abstract. A hexacopter unmanned aerial vehicle (UAV) was fitted with a three-dimensional sonic anemometer to measure wind speed, air temperature, relative humidity, and pressure. To obtain accurate results for speeds, we developed an algorithm correct biases caused by the propeller-induced airflow disturbance, UVA movement, changes in flight attitude measurements. The measurement platform built based on custom-designed integration kit that couples seamlessly UAV, equipped payload anemometer....
Abstract. A hexacopter unmanned aerial vehicle (UAV) was fitted with a three-dimensional sonic anemometer to measure wind speed. To obtain accurate results for speeds, we developed an algorithm correct biases caused by the rotor-induced airflow disturbance, UVA movement, and attitude changes in measurements. The measurement platform built based on custom-designed integration kit that couples seamlessly UAV, equipped payload anemometer. Based digital model of integrated UAV-payload-anemometer...
Monitoring of volatile organic compounds (VOCs) in air is crucial for understanding their atmospheric impacts and advancing emission reduction plans. This study presents an innovative integrated methodology suitable achieving semireal-time high spatiotemporal resolution three-dimensional measurements VOCs from ground to hundreds meters above ground. The integrates active AirCore sampler, custom-designed deployment unmanned aerial vehicles (UAV), a proton-transfer-reaction mass spectrometry...
Abstract. To achieve near-continuous vertical observations of volatile organic compounds (VOCs) in the planetary boundary layer (PBL), multi-channel whole-air sampling equipment onboard an unmanned aerial vehicle (UAV) platform was developed this study. The consists a multi-position solenoid valve and specially designed lightweight quartz canisters. canisters have little adsorption loss VOCs good inter-canister reproducibility. 7 d recovery test shows that most VOC species (97 %) had 1-week...
In this paper, the characteristics of atmospheric boundary layer (ABL) vertical structure over North China Plain (NCP) during a comprehensive observation experiment conducted 15–21 December 2018 were investigated. Observational data obtained with large tethered balloon, Doppler wind lidar, and ground-level instruments. The maximum concentration PM2.5 exceeded 200 µg m−3, ratio PM2.5/PM10 was approximately 0.4 (its maxi-mum 0.8) whole period, indicating explosive growth dominant fine-mode...
The height of the stable boundary layer (SBL), known as nocturnal height, is controlled by numerous factors different natures. SBL defines state atmospheric turbulence and describes diffusion capacity atmosphere. Therefore, it unsurprising that many alternative (sometimes contradictory) formulations for have been proposed to date, no consensus has achieved. In our study, we propose an iterative algorithm determine h based on flux–profile relationship using wind profiles turbulent fluxes....
<p>Physicochemical characteristics of the atmospheric boundary layer over North Plain China during comprehensive observation experiment from 10 to 21 December 2018 were investigated in this paper. The data are obtained large tethered balloon, Doppler wind lidar, ground-level instruments. maximum concentration PM<sub>2.5</sub> exceeded 200 µg m-3, and ratio value...
<p>The combination of in situ observations from a large tethered balloon and remote sensing instruments (aerosol lidar Doppler wind lidar) enabled the evolution residual layer (RL) to be observed during an intensive vertical detection experiment planetary boundary (PBL) conducted December (Dec) 2018 Wangdu County, China. This paper focused on important role played by RL variations distributions pollutant particulates. The results present analysis revealed following. (1) A...