Net Radiation of Evaporable Water
Net Radiation of Evaporable Water length per day influenced by the incoming solar radiation absorbed by the Earth's surface and the radiation reflected back.
Symbol: Hn
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Incident Solar Radiation Outside the Atmosphere
Incident Solar Radiation Outside the Atmosphere on a Horizontal Surface expressed in mm of Evaporable water per day.
Symbol: Ha
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Reflection Coefficient
Reflection Coefficient is a parameter that describes how much of a wave is reflected by an impedance discontinuity in the transmission medium.
Symbol: r
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Constant depending on Latitude
Constant depending on Latitude phi influencing the net radiation of evaporable water.
Symbol: a
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
A constant
A constant with an average value of 0.52.
Symbol: b
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Actual Duration of Bright Sunshine
Actual Duration of Bright Sunshine is a climatological indicator, measuring duration of sunshine in given period (usually, a day or a year) for a given location on Earth.
Symbol: n
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Maximum Possible Hours of Bright Sunshine
Maximum Possible Hours of Bright Sunshine is a climatological indicator, measuring the duration of sunshine in a given period.
Symbol: N
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Stefan-Boltzmann constant
Stefan-Boltzmann Constant is a physical constant involving black body radiation.
Symbol: σ
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Mean Air Temperature
Mean Air Temperature observed for incident solar radiation outside the atmosphere.
Symbol: Ta
Measurement: NAUnit: Unitless
Note: Value can be positive or negative.
Actual Vapour Pressure
Actual Vapour Pressure is the air in mm of mercury is the vapour pressure exerted by the water in the air.
Symbol: ea
Measurement: PressureUnit: mmHg
Note: Value should be greater than 0.