Habitat models are designed for a wide variety of planning applications where habitat information is an important consideration in the decision-making process. EE10 now supports two new types of habitat analysis tool. These are in addition to the existing temperature limit and depth criteria tool in 2DH View that was initially implemented to support studies on manatee populations in the Chassahowitzka Estuary. The two new tools generate time series critical limits, as well as support the state-of-the-art Instream Flow Incremental Method. These two methods are described below.