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4.2 Simulation of Plants
For calculating the thermal energy absorbed by trees or bushes, by using parametric
coefficients, the part of solar radiation used for the photosynthesis (about 5 %) and
which is released as latent heat in evapotranspiration processes (about 45 %) were
taken into consideration.
Summary of the methodological approach
Note: deterioration of the technical characteristics of materials and degradation of plant elements are not taken into consideration. For instance, in case
of building defects, ageing of surfaces, lack of watering of green areas or
increased volume of trees, the typical parameters of each single surface and,
as a consequence, their relative indexes might vary.
Note: the yards simulated by the “equivalent” lot do not take into consideration the real position of the various grounds; the average value of radiation
on the yard is associated with them.
6 UHI in the Metropolitan Cluster of Bologna-Modena...
4.2 Simulation of Plants
For calculating the thermal energy absorbed by trees or bushes, by using parametric
coefficients, the part of solar radiation used for the photosynthesis (about 5 %) and
which is released as latent heat in evapotranspiration processes (about 45 %) were
taken into consideration.
Summary of the methodological approach
Note: deterioration of the technical characteristics of materials and degradation of plant elements are not taken into consideration. For instance, in case
of building defects, ageing of surfaces, lack of watering of green areas or
increased volume of trees, the typical parameters of each single surface and,
as a consequence, their relative indexes might vary.
Note: the yards simulated by the “equivalent” lot do not take into consideration the real position of the various grounds; the average value of radiation
on the yard is associated with them.
6 UHI in the Metropolitan Cluster of Bologna-Modena...