Low-Altitude Sensing of Urban Atmospheric Turbulence with UAV
The capabilities of a quadcopter in the hover mode for low-altitude sensing of atmospheric turbulence with high spatial resolution in urban areas characterized by complex orography are investigated. The studies were carried out in different seasons (winter, spring, summer, and fall), and the quadcop...
Main Authors: | , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2022-02-01
|
Series: | Drones |
Subjects: | |
Online Access: | https://www.mdpi.com/2504-446X/6/3/61 |
_version_ | 1827649303997317120 |
---|---|
author | Alexander Shelekhov Alexey Afanasiev Evgeniya Shelekhova Alexey Kobzev Alexey Tel’minov Alexander Molchunov Olga Poplevina |
author_facet | Alexander Shelekhov Alexey Afanasiev Evgeniya Shelekhova Alexey Kobzev Alexey Tel’minov Alexander Molchunov Olga Poplevina |
author_sort | Alexander Shelekhov |
collection | DOAJ |
description | The capabilities of a quadcopter in the hover mode for low-altitude sensing of atmospheric turbulence with high spatial resolution in urban areas characterized by complex orography are investigated. The studies were carried out in different seasons (winter, spring, summer, and fall), and the quadcopter hovered in the immediate vicinity of ultrasonic weather stations. The DJI Phantom 4 Pro quadcopter and AMK-03 ultrasonic weather stations installed in different places of the studied territory were used in the experiment. The smoothing procedure was used to study the behavior of the longitudinal and lateral spectra of turbulence in the inertial and energy production ranges. The longitudinal and lateral turbulence scales were estimated by the least-square fit method with the von Karman model as a regression curve. It is shown that the turbulence spectra obtained with DJI Phantom 4 Pro and AMK-03 generally coincide, with minor differences observed in the high-frequency region of the spectrum. In the inertial range, the behavior of the turbulence spectra shows that they obey the Kolmogorov–Obukhov “5/3” law. In the energy production range, the longitudinal and lateral turbulence scales and their ratio measured by DJI Phantom 4 Pro and AMK-03 agree to a good accuracy. Discrepancies in the data obtained with the quadcopter and the ultrasonic weather stations at the territory with complex orography are explained by the partial correlation of the wind velocity series at different measurement points and the influence of the inhomogeneous surface. |
first_indexed | 2024-03-09T19:54:55Z |
format | Article |
id | doaj.art-407dcda679fc46b2b5a636dbb76de075 |
institution | Directory Open Access Journal |
issn | 2504-446X |
language | English |
last_indexed | 2024-03-09T19:54:55Z |
publishDate | 2022-02-01 |
publisher | MDPI AG |
record_format | Article |
series | Drones |
spelling | doaj.art-407dcda679fc46b2b5a636dbb76de0752023-11-24T00:58:06ZengMDPI AGDrones2504-446X2022-02-01636110.3390/drones6030061Low-Altitude Sensing of Urban Atmospheric Turbulence with UAVAlexander Shelekhov0Alexey Afanasiev1Evgeniya Shelekhova2Alexey Kobzev3Alexey Tel’minov4Alexander Molchunov5Olga Poplevina6Institute of Monitoring of Climatic and Ecological Systems SB RAS, 10/3, Academichesky Ave, 634055 Tomsk, RussiaV.E. Zuev Institute of Atmospheric Optics SB RAS, 1, Academician Zuev square Tomsk, 634055 Tomsk, RussiaInstitute of Monitoring of Climatic and Ecological Systems SB RAS, 10/3, Academichesky Ave, 634055 Tomsk, RussiaInstitute of Monitoring of Climatic and Ecological Systems SB RAS, 10/3, Academichesky Ave, 634055 Tomsk, RussiaInstitute of Monitoring of Climatic and Ecological Systems SB RAS, 10/3, Academichesky Ave, 634055 Tomsk, RussiaInstitute of Monitoring of Climatic and Ecological Systems SB RAS, 10/3, Academichesky Ave, 634055 Tomsk, RussiaInstitute of Monitoring of Climatic and Ecological Systems SB RAS, 10/3, Academichesky Ave, 634055 Tomsk, RussiaThe capabilities of a quadcopter in the hover mode for low-altitude sensing of atmospheric turbulence with high spatial resolution in urban areas characterized by complex orography are investigated. The studies were carried out in different seasons (winter, spring, summer, and fall), and the quadcopter hovered in the immediate vicinity of ultrasonic weather stations. The DJI Phantom 4 Pro quadcopter and AMK-03 ultrasonic weather stations installed in different places of the studied territory were used in the experiment. The smoothing procedure was used to study the behavior of the longitudinal and lateral spectra of turbulence in the inertial and energy production ranges. The longitudinal and lateral turbulence scales were estimated by the least-square fit method with the von Karman model as a regression curve. It is shown that the turbulence spectra obtained with DJI Phantom 4 Pro and AMK-03 generally coincide, with minor differences observed in the high-frequency region of the spectrum. In the inertial range, the behavior of the turbulence spectra shows that they obey the Kolmogorov–Obukhov “5/3” law. In the energy production range, the longitudinal and lateral turbulence scales and their ratio measured by DJI Phantom 4 Pro and AMK-03 agree to a good accuracy. Discrepancies in the data obtained with the quadcopter and the ultrasonic weather stations at the territory with complex orography are explained by the partial correlation of the wind velocity series at different measurement points and the influence of the inhomogeneous surface.https://www.mdpi.com/2504-446X/6/3/61quadcopterultrasonic weather stationturbulencelongitudinal and lateral spectrascalesurban environment |
spellingShingle | Alexander Shelekhov Alexey Afanasiev Evgeniya Shelekhova Alexey Kobzev Alexey Tel’minov Alexander Molchunov Olga Poplevina Low-Altitude Sensing of Urban Atmospheric Turbulence with UAV Drones quadcopter ultrasonic weather station turbulence longitudinal and lateral spectra scales urban environment |
title | Low-Altitude Sensing of Urban Atmospheric Turbulence with UAV |
title_full | Low-Altitude Sensing of Urban Atmospheric Turbulence with UAV |
title_fullStr | Low-Altitude Sensing of Urban Atmospheric Turbulence with UAV |
title_full_unstemmed | Low-Altitude Sensing of Urban Atmospheric Turbulence with UAV |
title_short | Low-Altitude Sensing of Urban Atmospheric Turbulence with UAV |
title_sort | low altitude sensing of urban atmospheric turbulence with uav |
topic | quadcopter ultrasonic weather station turbulence longitudinal and lateral spectra scales urban environment |
url | https://www.mdpi.com/2504-446X/6/3/61 |
work_keys_str_mv | AT alexandershelekhov lowaltitudesensingofurbanatmosphericturbulencewithuav AT alexeyafanasiev lowaltitudesensingofurbanatmosphericturbulencewithuav AT evgeniyashelekhova lowaltitudesensingofurbanatmosphericturbulencewithuav AT alexeykobzev lowaltitudesensingofurbanatmosphericturbulencewithuav AT alexeytelminov lowaltitudesensingofurbanatmosphericturbulencewithuav AT alexandermolchunov lowaltitudesensingofurbanatmosphericturbulencewithuav AT olgapoplevina lowaltitudesensingofurbanatmosphericturbulencewithuav |