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Hydrological Risk a.y. 2021/22

Programma

OBJECTIVES
The objective of the course is to introduce students to the main hydrological hazards (fluvial flood, flash flood, excess of rainfall and drought) and the consequent risks. The course aims at providing to the students an overview of the main approaches to assess the hydrological risk and of the main modelling techniques to quantify it.


DESCRIPTION
1. Introduction to hydrology and flood risk, 2. The main processes of the hydrological cycle, 3. Modelling approaches to compute the discharge in a river, 4. Definition of flood, 5. Statistical methods to describe the extreme events, 6. The Intense-Duration-Frequency curve, 7. The Flood Frequency Curve, 8. Anatomy of a Flood Risk Model, 9. Models for hazard estimation, 10. 1D and 2D hydraulic models, 11. Simplified geomorphological models, 12. The role of the hydraulic defenses, 13. Models for the vulnerability estimation,
14. Models for the exposure, 15. Generation of flood events, 16. Flood risk analysis, 17 Definition of drought,
18. Main modelling approach to assess the drought risk.
During the course there will be presentations on specific applications: the estimation of the defence failure effects, the downscaling of the exposure model, the computation of building damages due to flood, models for drought estimation over large areas, simple tools for the estimation of the extreme events distribution.


REQUIREMENTS
Basic knowledge of Hydrology and Probability and Statistics.

Svolgimento

Date

From

To

Type

Topic

05/10/2021

09:00

12:00

Lecture

Definition of risk

05/10/2021

15:00

17:00

Lecture

Definition of hydrological phenomena

06/10/2021

09:00

12:00

Lecture

Concepts of hydrology

06/10/2021

15:00

17:00

Lecture

Models to compute the discharge

07/10/2021

09:00

12:00

Lecture

Models to compute the flood

07/10/2021

15:00

17:00

Lecture

Statistical method to estimate the peak of the discharge

12/10/2021

09:00

12:00

Lecture

Physically-based models to compute the flood hydrograph

12/10/2021

15:00

17:00

Tutorial

Montecarlo simulations

13/10/2019

09:00

12:00

Lecture

Definition of drought

13/10/2021

15:00

17:00

Tutorial

Description of the drought indexes

14/10/2021

09:00

12:00

Lecture

Flood damage models

14/10/2021

15:00

17:00

Tutorial

Drought damage models

19/10/2021

09:00

12:00

Lecture

How to estimate the exposure values

19/10/2021

15:00

17:00

Tutorial

Combining together all the risk components

20/10/2021

09:00

12:00

Lecture

Anatomy of catastrophe models

21/10/2021

15:00

17:00

Tutorial

How to compute the cost benefit ratio

26/10/2021

09:00

12:00

Lecture

How to reduce the risk or transfer the risk

26/10/2021

15:00

17:00

Tutorial

Exercise on R

Bibliografia

Eslamian, Saeid. Handbook of Engineering Hydrology, Boca Raton, FL: CRC Press Taylor & Francis Group, 2014
Yacov Haimes, Risk Modelling, Assessment and Management, Wiley, 2016
Zakai Sen, D. Chase, D. Savic, W. Grayman, S. Beckwith, and E. Koelle (2003). Apply Drought Modelling, Prediction and Mitigation. Elsevier, 2015
Kirsten Mitchell-Wallace, Matthew Jones, John Hillier, Matthew Foote, Natural Catastrophe Risk Management and Modelling: A Practitioner's Guide, Wiley, 2017
J.C. Gaillard, Natural Hazards and Disasters, Wiley, 2017

Esame

Assignments will be handed over and graded during the course. The final examination will consist of a presentation of a study case. Students will be admitted to the final exam based on a satisfactory performance in the assignment.

Mario Martina

Professore Associato in Idrologia

Ciclo :  XXXIV, XXXV, XXXVI, XXXVII

Tipologia corso : Caratterizzante

Curriculum : Rischi Idrometeorologici, Geologici, Chimici ed Ambientali

Periodo: Semestre I

Anno accademico: 2021-2022

Luogo : Classroom 1 - Iuss Marelli