Hydrology and Drainage Works
Objectives
At the end of this curricular unit, students will have acquired knowledge skills and competences to characterise the reference conditions of natural hydrological phenomena and their degree of anthropic modification. They will also be able to contribute to the testing and simulation of planning and management options for water systems, namely those associated with drainage problems and flow regulation and storage (using hydraulic works). Students will thus be able to do:
• Watershed delimitation and watershed physiographic characterization;
• Process hydrometeorological raw data (from gage capture to the hydrometry of flows);
• Make statistical characterization of precipitation''s regime in a watershed or at a rain gauge station;
• Perform water balances through the quantification of the components of the hydrological cycle such as precipitation, evaporation, evapotranspiration, infiltration and surface runoff;
• Understand infiltration processes and soil water drainage;
• Calculate surface runoff and flow volumes in a downstream section;
• Evaluate water needs and availability in a watershed;
• Understand and use methods for flood peak flow''s calculation in rural and urban watersheds, dimensioning curverts to cope with drainage problems;
• Characterize the intensity-frequency-duration of rainfall episodes and their erosive potential.
General characterization
Code
10435
Credits
6.0
Responsible teacher
Rui José Raposo Rodrigues
Hours
Weekly - 4
Total - Available soon
Teaching language
Português
Prerequisites
Available soon
Bibliography
1. Chow, V.T., Maidment, D. and Mays, L. (1988). Applied Hydrology, Mc-Graw Hill.
2. Hipólito, J.R., Carmo Vaz,A. (2012). Hydrology and Water Resources
3. Jones J.A.A. (1997). Global Hydrology – Processes, Resources and Environmental Management, Addison Wesley Longman Limited.
4. White, W; Watts, J. ed. (1994) – River Flood Hydraulics, Wiley
5. Hann, C. – Statistical Methods in Hydrology, TheIowaStateUniversityPress
Teaching method
Available soon
Evaluation method
Theoretical and exercise evaluation: 2 tests (T1 & T2) ,
without consulting supporting documents; maximum/minimum rating on each test: (100 / 20) points
Practice Test (Tp), consultation of supporting documents allowed; maximum rating: 200 points
FINAL RATING (values): [(T1+T2) X 0.7 + Tp X 0.3] /10
Obs: (T1+T2) >= 95 ; Tp >=95
(a minimum of 9.5 must be achieved in each evaluation component - practice and theory).
Final approval requires 2/3 attendance to practice classes
Subject matter
1. Hydrological cycle: general subjects; hydrological balance.
2. Watershed analysis: delimitation; physiographic characteristics.
3. Precipitation: classification; precipitation intensity and depth; statistics and hydrology.
4. Interception: concept and processes.
5. Evaporation: concepts; measurement; calculation; influencing factors.
6. Evapotranspiration: concepts; potential and effective evapotranspiration; potential evapotranspiration.
7. Flow in the saturated and the unsaturated zone.
8. Infiltration, percolation and drainage.
9. Surface runoff: river flow measurement; hydrological series; reservoir dimensioning; watershed runoff components; hydrographs; flooding; urban surface runoff.
10. Water resources management: water demand and availability; reservoir design and operation.
11. Soil erosion. Sediment transport.
12. Hydrological modelling: methods and mathematical models.