Methodology for planning a flight when carrying out air laser scanning in territories with mountainous relief

DOI: 10.35595/2414-9179-2024-1-30-617-631

View or download the article (Rus)

About the Authors

Ilya A. Rylskiy

Lomonosov Moscow State University, Faculty of Geography,
1, Leninskie Gory, Moscow, 119991, Russia,
E-mail: rilskiy@mail.ru

Dmitriy A. Paramonov

Lomonosov Moscow State University, Faculty of Geography,
1, Leninskie Gory, Moscow, 119991, Russia,
E-mail: paramonovwork@mail.ru

Marina V. Gribok

Lomonosov Moscow State University, Faculty of Geography,
1, Leninskie Gory, Moscow, 119991, Russia,
E-mail: gribok.marina@gmail.com

Roman V. Gruzdev

Institute of Natural Resources, Ecology and Cryology of the Siberian Branch of the Russian Academy of Sciences,
16a, Nedorezova str., Chita, 672002, Russia,
E-mail: rogruzdev@mail.ru

Abstract

Laser scanning and digital aerial photography require careful planning to ensure project requirements are met, data gaps are avoided and flight time is minimized. Any error of this kind results in additional costs, measured in tens of percent of the possible cost of the project. However, modern flight planning software shows an insufficient level of planning quality due to the inability to adequately estimate the distance from the sensors on the routes to the actual terrain surface. This effect is most pronounced in mountainous areas with highly dissected terrain. When using modern laser scanners operating in the mode of simultaneous presence of several laser pulses in the air, such a defect can and does lead to the appearance of gaps in the survey that are not cover by eddata. This task cannot be solved effectively manually, which requires the creation of methods for automated calculation of the quality of data coverage for all possible configurations of laser scanning equipment (depending on the actual range of the device at the selected shooting frequency). This paper describes a method for solving this problem using a new software solution based on ArcView, which checks the prepared flight plan for compliance with the technical conditions of the work and completeness of coverage. An example of an actually completed project in a territory with high mountainous terrain is given, as well as the examples of unacceptable options for performing work discovered by the described method. The presented technique can be used with any type of existing laser scanning systems and/or aircraft cameras, provided that their possible modes are first entered.

Keywords

aerial photography, 3D points, laser scanning, mountainous terrain, digital elevation model

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For citation: Rylskiy I.A., Paramonov D.A., Gribok M.V., Gruzdev R.V. Methodology for planning a flight when carrying out air laser scanning in territories with mountainous relief. InterCarto. InterGIS. Moscow: MSU, Faculty of Geography, 2024. V. 30. Part 1. P. 617–631. DOI: 10.35595/2414-9179-2024-1-30-617-631 (in Russian)