PPT-Hydrograph Analysis

71 Components of a natural hydrograph The various contributing components of a natural hydrograph are shown in figure 71 To begin with there is baseflow only that is the groundwater contribution from the aquifers bordering the river which go on discharging more and more slowly with time The hydrograph of baseflow is near to an exponential curve and the quantity at any time is represented very nearly by. Reading: Applied Hydrology Sections 8.1, 8.2, 8.4. 2. Flow Routing. Procedure to determine the flow hydrograph at a point on a watershed from a known hydrograph upstream. As the hydrograph travels, it. Reading: Applied Hydrology Sections 8.1, 8.2, 8.4. 2. Flow Routing. Procedure to determine the flow hydrograph at a point on a watershed from a known hydrograph upstream. As the hydrograph travels, it. Professor Ke-Sheng Cheng. Dept. of Bioenvironmental Systems Engineering. National Taiwan University. 2. The storage effect. The storage effect of a water-retention structure or a channel reach can change the shape of the inflow hydrograph. Therefore two types of routing procedures are needed to calculate the outflow hydrograph. . Residence Time. Mean Water Residence Time (aka: turnover time, age of water leaving a system, exit age, mean transit time, travel time, hydraulic age, flushing time, or kinematic age). T. . = V. . 1.With . the help of a neat sketch, explain the various component parts of single peaked storm hydrograph. .. 2. Explain . with the help of sketches, the three methods of base line separation. .. 3. Derive . Phase X Parts A and B. Dan . Matusiewicz. National Hydrologic Information Dissemination Services Leader. Analyze, Forecast, and Support Office. Forecast Services Division. Water Resources Services Branch. Rami. . Harfouch. Surface Water Hydrology. University of Texas at Austin, April 2010. Peak flows (flood applications, channels design). Rationale method Q=C . i. A. Hydrograph (storage structures design). Soil Water. Precipitation and Evaporation. Infiltration, Streamflow, and Groundwater. Hydrologic Statistics and Hydraulics. Erosion and Sedimentation. Soils for Environmental Quality and Waste Disposal . Low: 21. High: 47. Reservoir and . Streamflow. Routing. How do reservoirs, stream reaches, and distributed elements alter the runoff hydrograph? . Determine the time and magnitude of flow at a point on a watercourse from known or assumed hydrographs at points . in . Neches Basin. Presenter: Runnan Li. Instructor: Dr. . Maidment. A certain . level of flow is necessary to maintain healthy stream . ecology. A collection of varying flow requirements is called “environmental flows”.. Bucket. Recording gage. Collector and Funnel. Bucket and Recorder. Accurate to .01 ft. Telemetry- computer. From . Bedient. Interpretation of storm rainfall records. From Mays, 2011, Ground and Surface Water Hydrology. 2. Flow Routing. Procedure to determine the flow hydrograph at a point on a watershed from a known hydrograph upstream. As the hydrograph travels, it. attenuates . gets delayed. Q. t. Q. t. Q. t. Q. t. Hydroclimatology. (. Multiscale. Hydrology). A science dealing with the properties, distribution and circulation of water.. R. . Balaji. balajir@colorado.edu. CVEN5333 . http://civil.colorado.edu/~balajir/CVEN5333. HYDROGRAPHS. A hydrograph is a continuous graph showing the properties of stream flow with respect to time. Normally obtained by means of a continuous strip recorder that indicates stage versus time (stage hydrograph) and is then transformed to discharge hydrograph by use of rating curve..