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Vertical Variability of Night Sky Brightness in Urbanised Areas Cover

Vertical Variability of Night Sky Brightness in Urbanised Areas

Quaestiones Geographicae
Volume 42 (2023): Issue 1 (March 2023)
By: Dominika Karpińska and  Mieczysław Kunz  
Open Access
|Oct 2022
Figures & tables

Figures & Tables

Fig. 1

DJI Matrice 210 RTK drone with its proprietary measuring device (photo D.Karpińska).

Fig. 2

Schematic representation of the altitudes selected for the acquisition of data on light pollution of the night sky.

Fig. 3

Daytime (bottom) and nighttime (top) 360° panorama around the measurement location at the NCU campus (photo M.Kunz).

Fig. 4

Daytime (bottom) and nighttime (top) 360° panorama around the measurement location at the car park at Bema Street (photo D.Karpińska).

Fig. 5

Visualisation of land cover/land use at measurement locations in three buffer zones (25 m, 50 m and 100 m).

Fig. 6

Summary of the obtained results illustrating the variability of the night sky brightness in the vertical gradient at the measuring site located in Toruń: (a) at the NCU car park, (b) at the car park in Bema Street.

Fig. 7

Comparison of the obtained results showing variability of the night sky brightness in the vertical gradient at both measurement locations during: (a) cloudless night, (b) night with varied cloud cover.

Selected technical parameters of the measuring device_

ParameterCharacteristic
weight380 g
dimension5,5 × 8,2 × 15,8 cm
standard of data transmissionLoRaWAN
frequency bands868 MHz
operating time [3 000 mAh]∼ 12 month
range in built-up areas3–4 km
number of measurements during the day36
frequency of measurements15 min
operational time21:00–06:00 CEST
measuring sensorssurface brightness of the sky, temperature, humidity
the angle of data collection20°
tightness classIP65
DOI: https://doi.org/10.14746/quageo-2023-0001 | Journal eISSN: 2081-6383 | Journal ISSN: 2082-2103
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Language: English
Page range: 5 - 14
Submitted on: Jun 27, 2022
Published on: Oct 1, 2022
Published by: Adam Mickiewicz University
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year
Keywords:
light pollution,
smartcity,
UAV,
urban area,
vertical measurement
Related subjects:
Geosciences,
Geography

© 2022 Dominika Karpińska, Mieczysław Kunz, published by Adam Mickiewicz University
This work is licensed under the Creative Commons Attribution 4.0 License.

Volume 42 (2023): Issue 1 (March 2023)
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