View
21
Download
2
Category
Tags:
Preview:
Citation preview
Investigations of channel evolution on River Sajó
László Bertalan PhD studentUnviversity of Debrecen (Hungary)
11.10. 2014.
Sample areas 1.
2.
3.
4.
I. Recent channel development of River Sajó
I. Recent channel development of River Sajó
Survey methods:• Total station• RTK GPS
Soil samples:• Every 10 cm from surface to groundwater level• 312 samples yet…but more coming • Grain size distribution, CaCO3
Channel evolution monitoring:• DJI Phantom 1 UAV• Ortophotos + Digital Surface Models
Sample area 1-2.
I. Recent channel development of River Sajó
I. Recent channel development of River Sajó
Sample area 1-2.
Sample area 3.
I. Recent channel development of River Sajó
I. Recent channel development of River Sajó
Sample area 3.
8,9 m
8,4 m
2,8 m
UAV - DFM
I. Recent channel development of River Sajó
UAVDFM + Ortophoto
I. Recent channel development of River Sajó
Accuracy assessment
I. Recent channel development of River Sajó
19802010
Channel morphometryanalysis
Archive military aerial photographs•1951•1956•1975•1988
Ortophotos•2000•2005•2011
II. Long term temporal analysis of River Sajó
Recommended