Forecasting is critical in most planning studies and management tasks and so too in hydrological studies where forecasting plays a vital role in a variety of areas viz. flood and drought management, development of early warning systems, sedimentation rate forecasting and other reservoir studies, groundwater trends and climate change impact studies amongst others. However, the complexity of the natural (hydrological and geophysical) process and its variability in time and space makes the task of forecasting very challenging. The natural processes are generally composed of multiple features that are present at different temporal scales but whose individual, scale specific, characteristic details get camouflaged in the integrated observations. Generally, traditional models are seen to lack the capability to recognize and discriminate between features that operate at different scales and are therefore unable to provide satisfactory forecasts. The main aim of this study is to develop a Wavelets based, unified modelling framework that is able to detect the underlying, but individually non-observable, scale specific features in the hope to obtain more efficient forecasts.
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