In the 2010 general election the Sweden Democrats for the first time crossed the four per cent threshold necessary for parliamentary representation.
Evapotranspiration (ET) is the sum of evaporation and plant transpiration from the Earth's land and ocean surface to the atmosphere. Evaporation accounts for the movement of water to the air from sources such as the soil, canopy interception, and waterbodies.
âreferenceâ evapotranspiration is based on hypothetical crop, the process of elimination of crop specific changes is much easier. Potential evapotranspiration (ET p): The potential evapotranspiration concept was first introduced in the late 1940s and 50s by Penman and it is defined as âthe