Floating method as a tool for monitoring the hydrological behavior of urban stream

Abstract

Water, a natural resource of extreme importance for the survival of man, has been extracted in an accelerated way by several sectors that have interfered in the cycle, altering the quality and quantity of the water. Many countries already suffer from water scarcity, necessitating the application of national and international legislation to control the activities that use it and resolutions of possible conflicts. In the present study, monitoring and measurement of the flow of the criminal stream located in the sub basin of the Taquari River was carried out, using the float method to quantify the flow and linimetric rules for daily monitoring of the water sheet in order to identify the possible factors that are interfering in the flow of the stream and produce with the data obtained the key curve type power. Based on the results obtained, the float method proved to be adequate for flow measurement of streams with little amount of water, the key curve was adjusted for daily measurements using the linimetric ruler dimension with the parameters h₀=0,11, a=907,7781, at = 0.528, the fluvial behavior of the criminal stream in the period showed Q₉₀ de 115 L.S^-1 and Q₉₅ de 99 L.S^-1