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Without long-term high quality data the development and sustainability of water resource systems, the prediction and prevention of floods and droughts, and solutions to the general water shortage crisis, would be severely hampered. In 2003 the International Association of Hydrological Sciences initiated a 10-year initiative: ‘Predictions in Ungauged Basins’ (PUB) to formulate and implement programmes to energize the scientific community towrds making reliable predictions in ungauged basins. A workshop was set up to engage scientists worldwide in discussions of the current state of hydrological predictions. This book is the result of that workshop. The workshop looked at the problems likely to arise from declining hydrological gauging networks, natural variability and human-induced long-term climate changes and land-use changes. It also looked at the improved hydrological theories, novel data collecting techniques including remote sensing, and a new generation of models based on these new theories and data sources. |