Remote Sensing Using Unmanned Aerial Vehicles for Tourist-Recreation Lake Evaluation and Development

Abstract

This article concerns the use of remote sensing methods to assess the potential of tourism and recreation of lakes by using unmanned aerial vehicles as a tool that offers new measurement possibilities in such difficult areas to research as river and lake systems. For the purpose of the study, air surveys over three lakes used for tourism and recreation purposes were planned and carried out. These were the following lakes: Swarzędzkie, Wolsztyńskie and Zbąszyńskie located in western Poland. The photos were taken with a RGB and a multispectral cameras. On the basis of calculated orthophotomaps and digital surface models, anthropogenic and natural values were assessed. The examples of the research show the versatile possibilities of using drones dependent on the type sensor used. Remote sensing performed from the deck of an unmanned aircraft is widely used in the study of lakes and is an alternative to existing land and water research methods.

Selected methods for determining inconclusively identifiable shorelines of watercourses and lakes

“…In the case of a shoreline which is difficult to access, and whose span is difficult to identify, the use of the methods indicated here is not justified, either economically or in terms of the reliability of the measurement. The solution to this problem may lie in using measurement methods applied in photogrammetry, such as the analysis of multispectral photographs taken from a low aviation ceiling, as these can be used to develop an orthophoto map of the measured area with a resolution of several centimetres, and then performing the necessary analysis (Borkowski and Młynarczyk, 2019). Objective methods of shoreline detection are offered by the latest techniques in photogrammetry, topographic data collection, and digital image processing (Boak and Turner, 2005).…”