We use modern aerial survey techniques (laser scanning, orthophotos) to precisely and quickly measure river valleys, drainage facilities, bridges and engineering structures and all structures in the surrounding area.

We also take measurements in areas with difficult access.

The developed documentation has a number of applications in hydrotechnical projects, river regulation, flood risk management, legal regulations and official decisions.

Thanks to aerial techniques, we take measurements of river valleys.

The digital terrain model allows generating valley cross sections.

Spatial models of river valleys make it possible to perform hydrological analyses, such as determining flood zones.

With the help of LIDAR scanning and photogrammetry, we make detailed models of hydrotechnical structures.

Applications of our documentation:

– modeling of river valleys, determination of terrain slopes

– making valley cross-sections

– delineation of dry areas, wetlands, river boundaries

– delineation of floodplains and building lines

– presentation of the coastline against the background of data from the cadastre of real estate (boundaries of land plots, decisions, plans)

– 3D models of hydrotechnical structures and objects

– inventory and inspection of flood embankments

– inventory of trees and greenery along rivers.

The use of an airborne 3D scanner allows us to make an accurate model of the terrain despite the wooded and shrubby areas, as well as in the areas of river banks.

POINT CLOUD CHARACTERISTICS:

Point cloud density (LiDAR)	~400 pts/m2
Point cloud density (photogrammetry)	~2500 pts/m2
Accuracy	<3 cm
Data format	LAS / LAZ / E57 / TXT
Color palette	RGB / monochromatic / by elevation
Classification	ASPRS standard
Coordinate System	adapted to project

DSM / DTM CHARACTERISTICS:

Data type	raster / vector
Data format	GeoTIFF / DWG / DXF / DTM
XY accuracy	<3 cm
Z accuracy	<3 cm
Coordinate System	adapted to project
Vertical Reference System	adapted to project

3D MODEL CHARACTERISTICS:

Data format	3ds / dae / obj / tls
Coordinate System	adapted to project
Vertical Reference System	adapted to project
Color palette	RGB / monochromatic / by elevation

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– embankments inventory

– hydrotechnical facilities inventory

Measurement and modeling of river valleys

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