In various embodiments, systems and methods are provided for generating and using a customized index. Each of the keys has means for making the selection of smaller key sizes easier for a user. The harvester moves on wheels and is capable of being adjusted to cut the aquatic vegetation at a desired height that does not disturb the water bottom ecology. A baseline modeling component builds a baseline model from the preprocessed data, wherein the baseline model relates process performance variables as a function of process operating conditions.