Using the measured data on 15 laboratory models in USA, six and one prototype Turkey, discharge coefficients (C’s) of radial-gated ogee spillways for various gate openings lake water surface elevations are computed. Comparison these C’s 22 with ones given by Figure 9-31 Design Small Dams does not show close agreements. It is determined that C depends both angle Ɵ ratio d/H1, rather than only wh...

River Region of Baru-Kluet has a steep slope contour and high rainfall so that it is vulnerable to flooding while during the dry season rice fields experience drought due lack water. Therefore, dam built mitigate these issues. The spillway flow-control component in which used improve regulation enlarge flow rate will cross building. Spillway hydraulic behavior called cavitation. experiment was ...

Atmospheric gas saturation levels were monitored throughout a 40-km reach of the upper Colorado River during the summer and fall of 1995 to identify possible sources of gas supersaturation in the river. Gas saturation data from seven fixed sampling points and 40 random sampling points were analyzed using analysis of variance (ANOVA) and multiple regression methods. The lowest total gas saturati...

Abstract Otolith strontium:calcium ratios were used to trace lifetime movements of American eels (Anguilla rostrata) captured in salt-water bays and adjoining freshwater ponds in Prince Edward Island, Canada. Eels were classiWed into migratory contingents based on their movement patterns. A pond with a pool-and-weir salmonid Wshway and a pond drained by a low-gradient channel contained eels tha...