HYDROLOGYAnno accademico 2018/2019 - 1° anno - Curriculum Ingegneria delle acque
SSD: ICAR/02 - COSTRUZIONI IDRAULICHE E MARITTIME E IDROLOGIA
Organizzazione didattica: 225 ore d'impegno totale, 138 di studio individuale, 42 di lezione frontale, 45 di esercitazione
The course is an introduction to hydrology and hydrological cycle with particular emphasis on application aspects related to water and environmental engineering.
Modalità di svolgimento dell'insegnamento
The course includes class lectures and numerical laboratory activities by the students.
Basic knowledge of Hydraulics, use of spreadsheets (e.g. Excel) and programming languages (preferably Matlab).
Attendance is strongly suggested.
Contenuti del corso
Course presentation. Development of hydrological science.
2 INTRODUCTION TO THE HYDROLOGICAL CYCLE
Hydrological cycle components. Precipitation. Evaporation and evapotranspiration. Runoff and streamflows. Groundwater. Human effects on the hydrological cycle. Distribution of water resources on earth.
3. HYDROLOGICAL INFORMATION
Instruments and methods for measuring hydrological variables. Sources of information. Hydrological and Hydrographic services. Real time data collection networks. Radar and satellites. Reanalysis data.
4. WATERSHED AND DRAINAGE NETWORK CHARACTERIZATION USING GIS
Watershed delineation. Geomorphologic characterization of watersheds. Streamflow network characterization. Horton and Strahler’s laws.
5. INTRODUCTION TO PROBABILITY THEORY AND STATISTICS
Statistical description of data. Probability definitions. Probability function. Properties of probability functions. Random variables, cumulative distribution function (cdf) and probability density function (pdf). Discrete parametric cdf. Continuous parametric cdf. Return period and risk. Distribution fitting and goodness of fit assessment. Statistical tests. Regression analysis.
Formation of precipitation. Precipitation types. Distribution of precipitation. Estimation of areal precipitation. Extreme precipitation frequency analysis. Intensity duration frequency curves. Regional analysis of extreme precipitation.
7. RUNOFF AND STREAMFLOWS
Streamflow regimes. Streamflow measurements. Flow duration curves. Formation of runoff and streamflows. Infiltration. Hydrograph components.
8. FLOOD HYDROGRAPH ANALYSIS
Hydrograph separation. Time of concentration estimation. Peak discharge estimation. Regional methods for peak discharge estimation. Design hyetographs. Rainfall-runoff models. Rational method. Unit hydrograph. Instantaneous Unit Hydrograph. Conceptual models (time-area, linear reservoir, Nash, Clark). SCS Unit Hydrograph. GIUH. HEC-HMS software.
9. HYDROLOGICAL ASPECTS OF RESERVOIR ANALYSIS
Types of reservoirs. Design criteria. Simulation of reservoirs. Flood control.
10. DROUGHT ANALYSIS
Drought, aridity and desertification. Characteristics of local and regional droughts. Drought monitoring. Drought mitigation.
Testi di riferimento
1. DINGMAN, S.L. Physical hydrology, Prentice-Hall, 2002.
2. MAIDMENT, D.(ed.), Handbook of hydrology, McGraw-Hill, New York, 1993.
3. BRAS R., Hydrology: an introduction to hydrologic science, Addison-Wesley Publ. Company, Reading Ma, 1990.
Handouts and other material will be distributed in class and made available on this website
Programmazione del corso
|2||2 INTRODUCTION TO THE HYDROLOGICAL CYCLE|
|3||3. HYDROLOGICAL INFORMATION|
|4||4. INTRODUCTION TO PROBABILITY THEORY AND STATISTICS|
|6||6. WATERSHED CHARACTERISTICS|
|7||7. RUNOFF AND STREAMFLOWS|
|8||8. FLOOD HYDROGRAPH ANALYSIS|
Modalità di verifica dell'apprendimento
The exams are oral and either English or Italian language can be used. In order to take the exam, students must complete the homeworks.
Esempi di domande e/o esercizi frequenti
Necessary condition (but not sufficient) in order to pass the exam is the knowledge of the topics of the homeworks
Examples of questions and related frequency observed on a sample of 50 exams in previous years
|Watershed characterization through GIS||15%|
|Estimation of flood discharges||25%|
|Estimation of net precipitation||5%|
|Sources of hydrological information||5%|