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ZL6 Antenna Extension
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Models
Evapotranspiration
Chill Hours
Daily Light Photoperiod
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Plant Available Water
Daily Light Integral
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All Categories > ZENTRA Cloud > Models
9 articles
ZENTRA Cloud follows the standard FAO 56 Penman-Monteith guidelines for calculating evapotranspiration. Users can choose between ETr (alfalfa) reference or ETo (grass) reference depending on preference.
Updated 7 months ago by Travis Bates
The chill hours model specifies that the hours between 32 and 45 degrees Fahrenheit (0°C to 7.2°C), accumulate as chill hours.
Updated 2 years ago by Travis Bates
The daily light photoperiod model uses measured PAR (Photosynthetically Active Radiation) or PYR (Solar Radiation) to calculate an accumulated daily photoperiod.
The development of plants depends on the accumulation of heat. Accumulated growing degree days (GDDs) can be used to predict when a crop will reach a particular growth stage.
Setting the field capacity (FC) value defines the maximum amount of water soil can hold against gravity drainage. Setting the permanent wilting point (PWP) value defines the water content at which plants can no longer extract water from the soil.
The daily light integral model uses measured PAR (Photosynthetically Active Radiation) to calculate an accumulated daily light integral.
Updated 3 years ago by Travis Bates
ZENTRA Cloud supports a limited number of common environmental models. See the full list.
Calculate depth to groundwater from HYDROS 21 & CTD sensor water level measurements.
Calculate groundwater elevation from HYDROS 21 & CTD water level measurements.