Evapotranspiration
13 important questions on Evapotranspiration
Latent heat flux or LE
What is the clothes-line parallel?
- Low evaporation due to low temperatures and high relative humidity (clothes are really close to each other on the line, faced to each other)
- High evaporation due to available energy, wind (transport) and low humidity (clothes are hanging next to each other with enough space between)
What is the land surface energy balance?
Rnet=lambda*ET + H + G
linked by the latent heat of vaporization (lambda) J/kg
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What measures eddy covariance?
The pan evaporation paradox
What is the effect of dimming/brightening on ET?
Why is the increase in global ET slowed down since 1980's?
Available soil water and ET: saturation
Why can the actual ET differ? (Actual ET: Penman-Monteith)
Soil moisture limitation: drying stages. What happens during stage 1 drying?
Sufficient soil moisture is available in the soil for Evapotranspiration to occur at the potential rate.
- ET is thus independent of the soil moisture conditions.
Soil moisture limitation: drying stages. What happens during stage II drying?
What happens with ET during long rainless periods and which drying stage is this?
According to Penman-Monteith what are the consequences when ET reduces?
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