The influence of climate change and climatic variability on the hydrologic regime and water resources proceedings of an internat. symposium held during the XIXth General Assembly of the Internat. Union of Geodesy and Geophysics at Vancouver, Brit. Columbia, Canada, 9-22 Aug. 1987 - Solomon, S. I.; Beran, Max; Hogg, W. (IAHS Publication, 1987)