Irrigation data comprise a variety of definitions related to Water users defined as Irrigation type of users.
Regular water users and Irrigation water users functions very similar. The main difference being that the Regular water user works on prescribed demands and return flows, and the Irrigation user calculates the two variables dynamically. An Irrigation water user represents one irrigation area comprising one or more irrigated fields, which are all drawing water from the same sources. Each Irrigation user therefore represents the total irrigation demand for all fields defined for this specific user.
The calculation of water demand and return flow for irrigation users are based on detailed information about the soil and runoff properties of the fields as well as the type of crop grown within these fields. Generally, several fields in a basin model have the same soil properties and eventually identical type of crops and the Irrigation Data entry enables the definition of specific crop-types, Irrigation method definition as well as overall Soil and runoff methods that can then easily be applied when defining the specific details for Irrigation Users within the Water Users page.
Irrigation data includes sub-pages for definition of:
· Irrigation Method (how and when irrigation occurs)
· Crops (crop specific details)
· Soil and runoff (soil type and runoff models)