LATERAL EROSION MONITORING

ALONG A SOUTHERN SECTION OF

SAJÓ (SLANÁ) RIVER

László Bertalan – Gergely Szabó PhD. Department of Physical Geography and Geoinformatics

University of Debrecen

UAV4 Conference, Brno – Budkovice Airport - 11.05.2015.

Location of Sajó (Slaná) River

Channel morphometry

analysis

Archive military aerial

photographs

• 1951

• 1956

• 1975

• 1988

Topographic maps

• 1:10.000 (1980)

Ortophotos

• 2000

• 2005

• 2011

Spatio-temporal analysis of Sajó River

Changes in the centerline

1 – Not regulated section; 2 – Regulated section

Natural and Anthropogenic changes

HD72/EOV

Low-cost UAV measurements

• DJI Phantom 2 UAV

• GoPro Hero 3+ camera

• Trimble S9

2 cm RTK-GPS for GCP

• Agisoft Photoscan

stereophotogrammetry

processing software

Sample areas for UAV measurements

Sample area 1.

5,11 m

5,88 m

Sample area 2-3.

HD72/EOV

HD72/EOV

Next step: volume estimation from DSM

Next step: volume estimation from DSM

Thank you for your kind attention!