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<br />Hydrolo'~y <br /> <br />The presentation on hydrology will focus on analysis techniques <br />of flood hydroloqy in urban and rural settings. Some methods of <br />hydrologic analY!lis require the use of rE!latively complex comput- <br />er models that rlaquire significant 'training and experience to use <br />properly. ~~hese methodologies l.ill be mentioned in the discus- <br />sion of hydrology however no attempt will be made to teach con- <br />ference participants how to use the more complex computer models. <br />Appropriate referrals to sources c>t information regarding more <br />complex computer models are includ,ed in the outline notes. The <br />presentation on engineering flood hydrology will also focus on <br />the various sources of information that are available for the <br />person who is in need of flood hydrology data. <br /> <br />What is Hydrolo91'? <br /> <br />Hydrology is defined as the science of water, its properties, <br />phenomena, and distribution on the earth. From 1:his broad defi- <br />nition we can see that engineering flood hydrology is a very <br />small part of thla science of hydrology. The discipline of engi- <br />neering flood hydrology seeks to develop a probabilistic rela- <br />tionship describing variables such as peak discharge and flood <br />volume at a given location within a watershed. <br /> <br />Why are we intere.sted in establishing in developing II, probabilis- <br />tic relationship describing variablie,s su.~h ai3 peak cHscharge and <br />flood volume? <br /> <br />Floodplain manage:ment and the design of hydraulic structures that <br />convey naturally occurring flows (culverts, darns, improved open <br />channels, etc.) employ the water renources concept of prObabi- <br />listic design. The probabilistic analysis and design concept <br />recognizes the felct that a naturall~' occurring peak discharge or <br /> <br />1 <br />