A while ago I had asked about ways to map an island (4.5 x 3.6 miles). That was more for “fun” just to have a usable high resolution aerial view. I did not work on that project (yet).
Now a project has been started to create a water supply system consisting of 3 water reservoirs and thereafter 3 to 5 pump stations with water tank towers from where all the households and resorts would be provided with water.
As of now, the responsible people here on the island would literally walk around, choose a position for a pump station based on the feeling that a spot is a good one and deciding where to have the water pipes run along also based on their feeling and knowledge of the island. For sure also the result would not be bad at all. The people here know their place.
I am wondering though if I could help making the project even more successful with drone deploy (I use a DJI Mavic 2 Pro) by creating an accurate 3D map of the island (elevations in the relevant areas vary from 0 to about 160 feet).
We need to be able to identify the 5 spots
- as high as possible so you need less pump work to bring the water to the houses
- as well as possibly placed to reduce the amount of pipes required to supply all houses
- choose the best possible path for the pipes to avoid unnecessary pipes work
With several test photos I know that is easy to identify most land boundaries from an aerial perspective. That helps identifying ideal paths where to go along with the pipes (at the border between lands is always the best solution to avoid “cutting through” the land of an owner).
Google Earth altitude data for the island are completely wrong. That you can see even just by standing on a spot and looking around.
Is Drone Deploy the solution for the job?