Canadian river present complex management problems stemming from varied use of the water resource and distinctive environment. Data available for decision making include gauging records, engineering histories, and a few research studies. Effective management requires more complete documentation of extreme flows, runoff trends, regional hydrological character, ice regime, channel stability, and biophysical features of rivers. We believe that progress toward realizing these results could be made, at reasonable cost, in a national programme that gave increased emphasis to instrumentation for #x2019;icy#x2019; rivers, improved coordination of field measurements, obtained standard morphological descriptions of gauged reaches, and published extended analyses of the data. Determined implementation of such a programme would probably require changes in hydrological training and coordination in the country.
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