Tests at Castejon de Ebro: Checking heights for look angles, fields of view and resulting flow resolution around Castejon railway bridge, during the dry season . This is a key reach for monitoring the Ebro river during flood periods.
Posts
Drone special at Hydrolink magazine
State of the art technique is available at this IAHR publication: https://iahr.org/Portal/News/News%20-%20Latest%20issue%20of%20Hydrolink%20on%20Drone%20Special%20is%20now%20published.aspx
Confluence image:
4K images dozen of meters above water surface allow for tracking the flow speed in this confluence, the change in velocity determines the driving forces (Newton´s 2nd Law) and the prediction of effects and control measurements. Drone videos and further image processing are affordable tools for real scale studies.
First flow rise tests:
4K Images during this year first rise, flights were stable and the resolution pretty much fine.
Topographic mapping with drones:
Limitations, accuracy, Ground Control Points support, Structure from Motion, what can be done at the moment ? Latest research available at: https://www.mdpi.com/journal/drones/special_issues/DroTop
First drill:
No wind, clear sky, and all dry for the moment. As you can guess ... the first drill is to fly below the bridge, go and return !
First steps, Jan 2019
Testing a DJI Mavic 2 Zoom to feel familiar with stable heights, angles and video parameters, although January is usually windy at Saragosse and wind speeds over 10 m/s are not secure, as happens now; current wind speed map provided by darksky.net .