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<p>This study presents an experimental investigation of the Atmospheric Boundary Layer (ABL) over Tehran using a unique measurement system mounted on an unmanned aerial vehicle (UAV). Driven by the need for precise urban climate data, our research utilizes a UAV equipped with advanced sensors to measure wind speed, pressure, temperature, and humidity at various altitudes and times over five days. The developed system offers a cost-effective and flexible means to capture high-resolution vertical profiles of ABL characteristics. Unlike conventional methods, this system is distinguished by its capability to measure key atmospheric parameters such as wind speed and direction, temperature, humidity, and pressure, with a lightweight design that minimizes restrictions on the drone's operational ceiling height. This enables comprehensive monitoring of the boundary layer at different times of the day and night. By calculating potential temperature and analyzing wind patterns, we determined ABL height and urban boundary layer dynamics, uncovering significant diurnal variations with the lowest pre-dawn heights (105–160&#xa0;m) and the highest midday heights (300–690&#xa0;m). This innovative approach demonstrates the UAV's effectiveness in urban atmospheric studies, offering new insights into pollutant distribution and aiding in urban planning and public health initiatives.</p>

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Experimental investigation of atmospheric boundary layer using unmanned aerial system equipped with novel measurement system

  • 期刊论文

  • 发表日期：

    2025年1月18日

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  • Zoheir Saboohi,
  • Alireza Moradi,
  • Seyed Ehsan Hosseini,
  • Nima Karimi

摘要

This study presents an experimental investigation of the Atmospheric Boundary Layer (ABL) over Tehran using a unique measurement system mounted on an unmanned aerial vehicle (UAV). Driven by the need for precise urban climate data, our research utilizes a UAV equipped with advanced sensors to measure wind speed, pressure, temperature, and humidity at various altitudes and times over five days. The developed system offers a cost-effective and flexible means to capture high-resolution vertical profiles of ABL characteristics. Unlike conventional methods, this system is distinguished by its capability to measure key atmospheric parameters such as wind speed and direction, temperature, humidity, and pressure, with a lightweight design that minimizes restrictions on the drone's operational ceiling height. This enables comprehensive monitoring of the boundary layer at different times of the day and night. By calculating potential temperature and analyzing wind patterns, we determined ABL height and urban boundary layer dynamics, uncovering significant diurnal variations with the lowest pre-dawn heights (105–160 m) and the highest midday heights (300–690 m). This innovative approach demonstrates the UAV's effectiveness in urban atmospheric studies, offering new insights into pollutant distribution and aiding in urban planning and public health initiatives.