The applied hydrology part of the course offers to the students a basic understanding of the processes that regulate the water cycle at the catchment scale, from the annual water balance to the dynamics of surface outflows in river networks and their extremes.

At the end of the course the students will be able to: -Evaluate the catchment water balance at different temporal scales -Use statistical methods for quantifying design storm and flood of a given probability of exceedance -Prepare a professional hydrological report on flood risk or water resources assessment

Basic knowledge of calculus, probability and statistics

-Water balance at annual and seasonal time scales Competition between water and energy (Budyko curve) Climate variability and the effect on the water balance Water storage in the catchment: snowpack, lakes, soils and groundwater Seasonality of water and energy – in phase and out of phase -Water balance at daily time scales Statistical description of rainfall sequences Fast and slow streamflow response Conceptual model of water balance partitioning Flow duration curves -Water balance at event time scale Variability of rainfall intensity within an event Physical models of the infiltration process at the point scale Runoff generation: infiltration excess and saturation excess runoff, SCS Curve Number method Runoff routing: hillslope and channel routing, unit hydrograph -Flood frequency analysis Propagation of probabilities from rainfall to floods Flood frequency estimation from streamflow observations Intensity, duration and frequency of extreme rainfall Design storm method Flood frequency and water balance at multiple time scales (effects of antecedent soil moisture, seasonality and long term variability of climate)

The module for Applied Hydrology is divided in 40 hours of frontal lectures and 20 hours of PC-assisted tutorials.

The slides of the curse will be made available on the Polito Teaching Portal https://didattica.polito.it Suggested books (for deepening the knowledge on the topics): - Ven Te Chow (2010), Applied Hydrology, Tata McGraw-Hill Education, 572 pages, ISBN: 007070242X, 9780070702424 - David R. Maidment (1993,1st ed.), Handbook of Hydrology, McGraw-Hill Education, 1424 pages, ISBN: 0070397325, 978-0070397323 - Wilfried Brutsaert (2005) Hydrology: An Introduction, Cambridge University Press, 618 pages, ISBN: 0521824796, 978-0521824798 - Nathabandu T. Kottegoda and Renzo Rosso (2008, 2nd ed.) Applied Statistics for Civil and Environmental Engineers, Blackwell Pub, 718 pages, ISBN: 1405179171, 978-1405179171

Modalità di esame: Prova scritta (in aula); Progetto di gruppo;

Exam: Written test; Group project;

... Type of exam: 2 written tests (80% weight) and an oral Power Point presentation (20% weight) The written exam of Environmental Fluid Mechanics lasts for two Hours and consists of three questions which may include numerical problems as well as theoretical questions (these include derivations). Each question is worth 10 points so that the maximum score is 30. The students can bring to the exam only their pen and a calculator. They will be given a formulae-sheet in support of the solutions of numerical problems. The evaluation of the exam-scripts will take into account the correctness of the solutions and the clarity of the presentation. The written exam of Applied Hydrology (2 hours duration) is aimed at verifying the achievement of a sufficient autonomy in facing a typical problem of hydrological evaluation of extremes or water resources. The exam script contains 2-3 exercises, one or two open questions and some multiple-choice questions. The exercises will be solved without the use of laptops and the questions will focus on the topics covered in class. The evaluation of the exam will take into account the resolution methods, the correctness of the numerical solutions, the demonstrated knowledge and the clarity of the presentation. The maximum evaluation for the written exams is 30.

Gli studenti e le studentesse con disabilità o con Disturbi Specifici di Apprendimento (DSA), oltre alla segnalazione tramite procedura informatizzata, sono invitati a comunicare anche direttamente al/la docente titolare dell'insegnamento, con un preavviso non inferiore ad una settimana dall'avvio della sessione d'esame, gli strumenti compensativi concordati con l'Unità Special Needs, al fine di permettere al/la docente la declinazione più idonea in riferimento alla specifica tipologia di esame.