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Unformatted text preview: cross-sectional (hydraulic) geometry semi-dependent factors o channel width, depth, roughness, velocity, pattern and load grain size o depend on the controlling factors but also some self-regulation (dependence on each other) dependent factors o slope of the water surface o the final adjustment, responds to the semi-dependent variable, cannot change abruptly like the other factors rate of adjustment o depends on resistance of the bed materials and amount of energy, i.e. mass (Q) and relief (base level) o thus fastest adjustments with large Q and adjustable materials o grade can exist locally in alluvial channels bounded by barriers such as resistant rock (waterfalls) or a landslide (e.g. Battle Creek valley) o grade extends to the entire profile as the barriers are eliminated...
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This note was uploaded on 12/15/2011 for the course GLY GLY100 taught by Professor Jaymuza during the Fall '10 term at Broward College.
- Fall '10