Data Based Solar Radiation Modelling - Hydrological Data Driven Modelling - page 139

Fig. 5.37 The decomposed wavelet sub-time series components and approximation series of daily
records from the Brue catchment. a original daily horizontal extraterrestrial radiation data,
b original daily mean air temperature data, c original minimum daily air temperature data,
c original maximum daily air temperature data, d original daily precipitation data, e original daily
wind velocity data

'

to note that the ANFIS couldn t cope with incorporation of new series (DWs)

whereas the addition of DWT have found signi cant extremely positive effect on

neuro-wavelet model and wavelet-SVM model. The observed and estimated daily
solar radiation values of the NWmodel for the training data are given in Fig. 5.38 aas
a scatter plot and the corresponding values as line diagram is shown in Fig. 5.38 b.
The Fig. 5.39 a, b is showing the scatter plot and line diagrams of NW model when
applied to the validation data. With all the models, the daily solar radiation pre-
diction is underestimated for both training and validation phases as indicated by the
MBE values in Table 5.2 .