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Efficient California IrrigationDaily California ETo Map |
 Copyright 2003-4. All Rights Reserved. |
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Irrigation of agricultural crops, turf grass, and
landscaping in California is generally required throughout much of the year,
and can represent significant expenses for water, power, and
labor. Under watering can lead to plant damage and reduced yields or quality. WaterMatters.com helps you apply experience, science, and software to your irrigation decisions. By utilizing data from over 120 active California agricultural weather stations, the updated analyses of the National Weather Service, continuous satellite surveillance, and our patented local estimation techniques, we can support your decisions at your location. |
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Click here to contact our Resident Biometeorologist for more information on how we can support your irrigation decisions. |
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WaterMatters.com supports the concept of Quantitative Irrigation Scheduling This technique involves using a nearby weather station situated on a "reference" surface that reports the meteorological parameter: Reference Evapotranspiration or ETo. ETo is pronounced as "ee" "tee" "oh" and refers to the quantity of liquid water that is evaporated or transpired from the reference grass surface. ETo is reported as inches (or millimeters) of liquid water equivalent per hour, or by day computed by summing 24 hourly values. Evapotranspiration for any crops can be estimated by multiplying the reported ETo by the appropriate crop coefficient. The water that went upward is water that was lost from the root zone of the plants and might need to be replaced by irrigation in the absence of rain or movement of water upward from below the root zone. |
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Click here to contact our Resident Biometeorologist for more information on how we can support your irrigation decisions. |