PPT-Frequency Analysis Reading: Applied Hydrology Sections 12-2 to 12-6

2 Frequency analysis for extreme events If you know T you can find y T and once y T is know x T can be computed by Q Find a flow or any other event that has a return period of T years. The secrets of the earth. He hastens not. To work his fellows' hurt by unjust deeds. But with rapt admiration contemplate. Immortal Nature's ageless harmony,. and how and when her order came to be. Such spirits have no place for thoughts of shame.. Hydrologic Systems. Hydrologic systems and hydrologic models. How to apply physical laws to fluid systems. Intrinsic and extrinsic properties of fluids. Reynolds Transport . Theorem. Continuity equation. Syllabus, sequence of topics. Hydrology as a science and as a profession. Hydrologic cycle and world water balance. Water as a physical substance. Case study of Brushy Creek watershed . Readings: . For today – Applied Hydrology and Chapter 1. Hydrologic Systems. Setting the context in Brushy Creek. Hydrologic systems and hydrologic models. Reynolds Transport Theorem. Continuity equation. Reading for next Tuesday – Applied Hydrology, Sections 2.3 to 2.8. . Uncertainties. in . Water-Resources. . Modelling. in . Central. America. Methods. . for. . Uncertainty. . Estimation. and . Model. . Evaluation. Introduction. and background. Opponent. : Alberto Montanari. uncertainty assessment. in hydrological modelling. Alberto . Montanari. Department DICAM – University of Bologna. alberto.montanari@unibo.it. Premise: the problem is not new..... “. It seems to me that the condition of confidence or otherwise forms a very important part of the prediction, and ought to find expression. Hydrologic Systems. Hydrologic systems and hydrologic models. How to apply physical laws to fluid systems. Intrinsic and extrinsic properties of fluids. Reynolds Transport . Theorem. Continuity equation. . Regional Frequency Analysis - Example. Prof. . Ke-Sheng. Cheng. Department of Bioenvironmental Systems Engineering. National Taiwan University. . Estimating the return period of region-wide catastrophic rainfalls. http://www.tsarp.com/. Most costly urban flood disaster in the history of the United States. Major Highways during Tropical Storm Allison. I-45 South. I-10 West. http://www.chron.com/content/chronicle/special/01/flood/. 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. Hydrology . :Treats of the water of the earth, their occurrence, circulation and. distribution, their chemical & physical properties and their reaction with their. environment, including their relation to living things.. Runoff. Streamflow. Generation. Excess Rainfall and Direct Runoff. SCS Method for runoff amount. Examples from Brushy Creek. Reading for today: Applied Hydrology sections 5.1 to 5.6. Reading for Tuesday Feb 19: Applied Hydrology Sections 5.7 and 5.8, Chapter 6. Surface water. Watershed – area of land draining into a stream at a given location. Streamflow – gravity movement of water in channels. Surface and subsurface flow. Affected by climate, land cover, soil type, etc.. LECTURE 1. REFERENCE BOOKS. Awan . N. . M, . Surface Water Hydrology (Vol-1), National Book Foundation, Islamabad Pakistan.. Chow . Ven. . Te. , David R. . Maidment. , Larry W. . Mays, . Applied Hydrology, McGraw Hill Book International Edition..