Yes, thank you for that hint. I did exaggerate with the total loss. I will fix it but it will cost me at least one additional day (not accounting for the additional processing effort).
I have some ideas of gcps made from pressed Cattail fibers. We have some examples for other products (packing material) here and I think that would be a perfect solution.
No doubt. I have had a total loss before and learned my lesson. Iām glad you can fix it and on the positive side you have to keep in mind how much it would have cost if you only had terrestrial surveyors and they had missed something.
Iāve gotten to the point now that I will Mark things every time I go out even if I donāt plan on using ground control points so that I can go back later and collect them and reprocess if needed. We have had a few situations come up where questions were asked about a certain. Of time and I have been able to go back and have answers for them.
I would love to hear what you come up with for those kind of gcps. We run into that periodically when we are doing drainage studies.
We have examined all the data you shared and, Iām afraid, itās hardly possible to understand from them why the issue occurred. We have also tried to replicate that behavior, however, to no avail. The issue is not common and I havenāt faced something similar before, unfortunately.
If by any chance you experience such behavior again, please, provide us with the following data: