Hi, I’m attempting to carry out beach profile monitoring. I want to know what I should put the advanced settings as when creating the flight plan to get the most detailed 3D model to depict elevation on a beach.
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You’re going to need to install some semi-permanent markers and/or RTK capability on the drone. Depending upon how often you are analyzing and the rate of change you are wanting to observe will determine what level and whether or not a drone is even the right tool.
Thanks Michael. I’m using a DJI Mavic 3E with the RTK module along with the Emlid as a base station. I also agree on the markers. I’m looking to monitor on a quarterly basis. What are your thoughts on an appropriate gimbal angle? I would like both a 3D model along with accurate elevations, would the same angle work for that?
An additional query I have is what is the elevation relative to when you draw a line on the orthomosiac and it creates a graph. I’ve read that it is from the take off point of the drone but that also has to be relative to something right?
A nadir needs to happen regardless of what other flight paths you want to run. Realize that the more variables you throw into the capture the more error you are introducing. I would recommend leaving obliques isolated to features that would benefit like walls or cliffs but try to keep them out of the areas to be monitored. You need to be as repeatable as possible. Monitoring just quarterly there should be enough measurable activity. If you fly too low you’ll have a hard time stitching sand. Some temporary markers in areas without many features would be good to ensure you get enough points.