Evaluating Model Effectiveness for Soil Infiltration Attribute: Comparison of Green-Ampt, Horton and Modified Green-Ampt Infiltration Models

Soil infiltration is a very important concept in hydrology as well irrigation, which plays vital role estimating surface runoff and groundwater recharge. It complicated process that varies with numerous factors. Accurate estimation of soil required for future many other purposes. To estimate the process, there are models. The majority them have some presumptions, unique calculation method, limitations. purpose paper was to assess model’s performance similar hypothetical scenario involving infiltration. compared rate, incremental versus time three different models: Green-Ampt model (GA), Horton Modified (MGA) model. A spreadsheet used calculate model, HYDROL-INF (V 5.03) simulate two Among those models, MGA outperformed while GA produced greater rate than rainfall, insensible. study showed provides useful predictions, Since does not consider ponding conditions, it only applicable when effective rainfall intensity exceeds final capacity. Moreover, initial irrational because disregards rainfall. results this will assist selecting most accurate method agricultural