CHANNEL PLANFORM ADJUSTMENT AND STREAM POWER VARIATIONS ON THE MIDDLERIVER COE, WESTERN GRAMPIAN HIGHLANDS, SCOTLAND

This paper assesses the spatial variations in types and rates of chann el migration over an historical time-period on the middle River Coe, W estern Grampians, Scotland. The study reach represents an exceptional example of an integrated channel system, which displays progressive do wnstream adjustment in both hydraulic geometry and planform characteri stics from a mountain torrent environment, through a wandering gravel- bed river section to a low-angle, gravel delta within a fluvio-lacustr ine environment above Loch Achtriochtan. Spatial and temporal variatio ns in channel planform adjustment and floodplain reworking are related to variations in bankfull discharge, associated stream power and chan nel competence.