Analytical expressions for noncapillary soil water retention based on popular capillary retention models
Thilo Streck, Tobias K. D. Weber
Abstract
Abstract Recently, Weber et al. proposed a new model for noncapillary retention of soil water without introducing new parameters. The model is based on the integral of any given saturation function for the capillary part in log space. In the original paper, the integration was carried out numerically. Here, we derive analytical solutions for the most popular soil water retention models (van Genuchten, Kosugi, and Brooks–Corey).
Topics & Concepts
Water retentionCapillary actionSaturation (graph theory)Function (biology)Soil scienceSoil waterCharacterisation of pore space in soilMathematicsEnvironmental scienceGeotechnical engineeringGeologyThermodynamicsPhysicsEvolutionary biologyCombinatoricsBiologyPorositySoil and Unsaturated FlowSoil Moisture and Remote SensingGroundwater flow and contamination studies