Recent Trends in Environmental Hydraulics by Monika B. Kalinowska & Magdalena M. Mrokowska & Paweł M. Rowiński

Author:Monika B. Kalinowska & Magdalena M. Mrokowska & Paweł M. Rowiński
Language: eng
Format: epub
ISBN: 9783030371050
Publisher: Springer International Publishing

2.2 Geospatial Data

The study used geospatial data obtained with the use of various techniques. As part of the analyses, airborne LiDAR data (ALS) were used in the form of a classified cloud of points derived from the resources of Główny Urząd Geodezji i Kartografii [Eng. Central Office of Geodesy and Cartography]. Measurements related to airborne laser scanning were performed in the winter-spring period in 2011. In addition, within the aforementioned research reach, terrain data were used, the source of which was a digital terrain model in a raster format with a resolution of 1 m, developed on the basis of LiDAR data (6 points/m2). An additional source of land cover information was the BDOT10k database with accuracy and detail corresponding to a 1:10,000 topographic map. From nine categories of topographic object classes included in BDOT10k, there was used information on land cover (PT) belonging to the third classification level in the scope of flowing water (PTWP02), stagnant water (PTWP03) and crops on agricultural land (PTTR02). In addition, the study used information obtained on the basis of the interpretation of orthophotomaps.

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