Unit HYDROGEOLOGY
- Course
- Geosciences for risk and environment management
- Study-unit Code
- GP004877
- Location
- PERUGIA
- Curriculum
- Geologia applicata alla salvaguardia e alla pianificazione del territorio
- Teacher
- Daniela Valigi
- Teachers
-
- Daniela Valigi
- Hours
- 73 ore - Daniela Valigi
- CFU
- 9
- Course Regulation
- Coorte 2022
- Offered
- 2022/23
- Learning activities
- Caratterizzante
- Area
- Discipline geomorfologiche e geologiche applicative
- Academic discipline
- GEO/05
- Type of study-unit
- Obbligatorio (Required)
- Type of learning activities
- Attività formativa monodisciplinare
- Language of instruction
- Italian
- Contents
- The elements of the hydrological cycle. Water budget. Case studies. Groundwater monitoring. Legislation. Darcy’s equation. Flowpath. Well hydraulics.
Determination of aquifer parameters (hydraulic conductivity, transmissivity and storativity) in steady-state and non-equilibrium conditions. Confined and unconfined aquifer Capture zone of a well pumping from an aquifer with a uniform hydraulic gradient. Step-drawdowns tests. Springs. Spring. Groundwater monitoring. - Reference texts
- •Fetter C.W. (2001) Applied Hydrogeology Prentice-Hall. New Jersey and CD Visual MODFLOW vers. 2.8.2.
•Freeze, R. A., & Cherry, J. A. (1979). Groundwater: Englewood Cliffs. New Jersey.
http://hydrogeologistswithoutborders.org/wordpress/1979-italiano/
• Recommended textbooks:
• Celico P. (1986) Prospezioni idrogeologiche. Vol. 1 e 2 - Liguori Editore.
• Civita M. (2005) Idrogeologia Applicata e Ambientale. CEA.
• Francani V. (2014) Idrogeologia Ambientale. CEA
• Todd D.K. e Larry W.M. (2005) Groundwater Hydrology - Wiley
Copies of the slides presented in class by the teacher. - Educational objectives
- Knowledge of the processes of the hydrological cycle, with particular
regard to groundwater.
The student should be capable to:
• quantify the water resources of a system using the water budget;
• interpret hydrogeological maps;
• use the techniques for the estimation of
hydrogeological parameters of aquifers (confined and phreatic);
• design and manage field water wells;
The student will be able to relate with or enter, the professional world, particularly with public and private institutions
that deal with the management of water resources, and will be aware of the use of groundwater modelling for water management.
The acquisition of basic knowledge will also be useful to undertake research in hydrogeology. - Prerequisites
- To properly understand the topics treated in this course it is necessary to have adequate knowledge of Physics (particularly fluid mechanics),
applied geology and structural geology. Furthermore, it is necessary to know derivatives and to be able to calculate simple integrals. The required background is given by the courses in Mathematics, Physics, Applied Geology and Geology of the MSc in Geology of this and other Universities. - Teaching methods
- The course is composed of "ex-cathedra" lectures and exercise sessions.
The exercise sessions are organized in direct relation to the topics covered by the theory lectures. Usually, two hours of lecture are followed
by an exercises session of two hours by PC. Practical lessons include a field trip to springs or well fields. - Other information
- For exam and lessons dates, please see the following website:
https://www.fisgeo.unipg.it/fisgejo/index.php/it/didattica/corsi-di-laurea-in-geologia/corso-di-laurea-magistrale-in-scienze-della-terra-per-la-gestione-dei-rischi-e-dell-ambiente-new/calendario-esami-e-sedute-di-laurea.html
Office address:
Section of Applied Geology, Geomorphology and Hydrogeology Department of Physics and Geology.
Via Faina, 4
06123 – Perugia
tel. +39 075 5840305
e-mail:daniela.valigi@unipg.it
skype: daniela.valigi - Learning verification modality
- The evaluation consists of a written and an oral exam. The written exam consists of the solution of numerical exercises about 3 hours long. Such problems will be of the same kind as those proposed and solved during the lectures. In particular, the exam is designed to test the ability to
estimate hydrogeological aquifer parameters by pumping tests, hydraulic potentials, and the water budget of hydrological systems.
Passing the written exam is mandatory to be admitted to the oral exam. The goal of the exam oral is to evaluate theoretical knowledge gained by the students, also in terms of language.
In order to reach this goal, students will be asked to answer theoretical questions concerning the topics treated during the course.
The final evaluation will take into account all the mentioned aspects.
Information for students with disabilities is available at http://www.unipg.it/disabilita-e-dsa - Extended program
- The hydrological cycle. Water budget. Evaporimeters. Determination of
areal rainfall (Thiessen and isohyet methods). Effective infiltration
coefficient and groundwater recharge in relation to geology.
Evaporation and evapotranspiration (Thornthwaite and Turc). Hydrogeological scheme of Central Italy. National and European water legislation. Groundwater monitoring. Case
studies of hydrogeological systems. Types of aquifers: confined,
unconfined and semiconfined. Hydraulic conductivity Darcy’s experiment.
Parameters. Flow nets. Piezometric map. Steady flow in an unconfined
aquifer: Thiem-Dupuit equation. Water Well Design. Well hydraulics. Determining aquifer parameters (transmissivity and storativity) from time-drawdown data.
Steady-state conditions in a confined aquifer: Steady radial flow (Thiem-Dupuit method). No equilibrium radial flow conditions in a confined
aquifer: Theis and Cooper-Jacob methods. Intersecting pumping cones and well interference.
Effect of hydrogeological boundaries: recharge and no-flow boundaries. Image well. Capture zone analysis: capture zone of a well pumping from an aquifer with a uniform hydraulic gradient. Wellhead protection areas delineation. Isochrones. Step-drawdowns tests: Jacob and Rorabough methods. Well efficiency. Springs. Recession curves: Maillet and Tison equations. Spring protection areas delineation. Case study. Introduction to ground-water models.