SOLWEIG 1.0 – Modelling spatial variations of 3D radiant fluxes and ...

706 Int J Biometeorol (2008) 52:697–713
Fig. 8 A–C Comparison between
measured and modelled
(m) three dimensional radiation
fluxes and T mrt at the courtyard
in Göteborg (Site 2), Sweden,
on a clear day (7 October 2005).
A Shortwave radiation fluxes,
B) longwave radiation fluxes,
C) T mrt for a standing man
absorbed by a standing man was conducted, in other words,
the angular factors and absorption coefficients of shortwave
and longwave radiation were included (see “Materials and
methods: Mean radiant temperature”). The plot of the
modelled versus measured total absorbed shortwave and
longwave fluxes (not shown) shows a similar pattern to that
of Fig. 10, but with RMSEs of 20.3 Wm −2 and 11.8 Wm −2
for shortwave and longwave radiation fluxes, respectively.
The longwave absorbed radiation flux becomes increasingly
important since ɛ p is 0.97, whereas ζ k is 0.7.
Figure 11 shows modelled and measured hourly values
of Tmrt using all data obtained from both sites for all 7 days
of measurements (n=95). The determination coefficient of
the linear regression is 0.94 (p