There is no simplified answer to drainage and each field needs to be properly surveyed to ensure that the plan for drainage will be case specific.
Therefore a topographical GPS survey with an accuracy of up to 2cm is the first step in the drainage process. This includes Saturated Hydraulic Conductivity which helps determine water flow. Furthermore, we take into account factors such as plant directions and water runoff.
Initial low cost, low-resolution info for pre-identification of best areas for development.
Both airborne hyperspectral and satellite multispectral sensors have the ability to monitor crop health during a growing season. Health is affected by pollution, drought, pests, and can be detected in the infrared bands long before it is apparent to the naked eye.
Surveying the whole farm allows you to see the bigger picture, sort out all the problems and even determine if it is viable and where to build dams.
By combining soil classes, topographical data, rainfall statistics and other inputs, an analysis can be done to determine potential and drainage problems.
You can determine which soils saturate quicker than others, where water levels are, find out if the type of soil is suitable to build a dam on and detect if your dam is leaking.
RTK GPSg surveys to assure absolute accuracy.