corecore catchercore wallcoringcoriolis forcecoriolis parametercorn belt climatecorollarycorrasioncorrection stripcorrective action plancorrectorcorrelationcorrelation coefficientcorrosioncorrugated metal pipecorrugation irrigatoincoshocton wheelcosmiccotton belt climatecounter damcounter radiationcouplingcourant numbercovecover cropcowscradlecreekcreepcrestcrest markercrest sharp of over flow spillwaycrest stagecrest stage gagecrevassecrevicecrib damcrib weircripcripplecriteriacriterioncriticalcritical areacritical depthcritical depth discharge measurementcritical dischargecritical flowcritical gradient