Making a longitudinal Liviling for a lake with determining the levels of the probes under water

#Longitudinal _ budget _ for _ a _ lake with determining the levels of the bodies under the surface of the lake's water
The longitudinal budget of a lake or any body of water is done if the water is shallow and there is no great depth, so it is done with a stature balance device with the possibility of a small boat, and such longitudinal budgets are done for the purpose of making probes for the land under the water of the lake, and the probes are about soil tests or taking soil samples, and this is done By making barrels, i.e. vertical digging in the ground under the water of the lake in the form of a vertical vertical, this process is done with huge drilling machines in order to study and discover the subsoil of the earth under the water of the lake. Sometimes there are many minerals in this area, so the studies are done and this budget is made until it is determined The level of each point before the work of the probes.