As an alternative to directly measuring the components of the water cycle and using empirical models based on these measurements, interception can be estimated from conceptual physically based models. The Rutter and Gash models, in both their original and improved versions, are the most widely used for the purpose of estimating interception (see the review by Muzylo et al., 2009). One of the main practical drawbacks of using these models is the lack of data with sufficient temporal definition and the need for a large number of parameters to apply the models. These limitations are even greater when the models are applied for practical purposes, such as those related to forest management.