| The focus of this research was the clarification of discrepancies found within the historic suspended sediment record for the Upper Brazos River, specifically at South Bend and Seymour, TX, as well as quantifying sediment transport dynamics within the upper basin. Flow duration curves constructed for the Brazos River indicate that both Seymour and South Bend experience similar high and low flow regimes, with the magnitude of the flow being the only difference. Contemporary samples at Seymour and South Bend produced specific sediment yields of 70 t km-2 yr-1 and 62 t km -2 yr-1 respectively. Heavy rainfall within the upper basin region of the Brazos River typically produces negative hysteresis within the sediment discharge. These concentrations are greater as discharge is dropping, this occurs in this reach of the Brazos because most of the sediment supplied to the river is from distant upstream reaches rather than immediately up river and proximal to the gaging station. |
