SEEPAGE & EVAPORATION METER


The IrrimateTM Seepage and Evaporation Meter measures losses from storages, channels and drains. By accurately measuring and logging water level every 15 minutes and relating night time evaporation to weather data, total losses can be split up to separate seepage and evaporation components. The measured evaporation rates can then be linked to standard weather data and evaporation losses calculated daily as required. Similarly, seepage rates (mm/day) can be applied to any storage, channel or drain to calculate losses.

By hiring or buying a Seepage and Evaporation Meter, strategic measurements of seepage and evaporation rates can be made for each storage and a typical channel and drain. Figure 3 shows the measured water depth changes over 25 days and Figure 4 shows the typical day/night time loss rates over 24 hours.