99514 - GROUNDWATER RESOURCES AND LANDSLIDE RISK IN A CHANGING CLIMATE

Learning outcomes

At the end of the course the student: - knows the processes of the global hydrological cycle and the mechanisms of interaction between surface and underground water resources, both natural and influenced by human activity; - understands the functionality of groundwater circulation and its spatial and temporal quantification with respect to the dynamics of global water circulation; - knows the interactions between groundwater circulation and ecosystems and the resilience characteristics of groundwater with respect to the impacts of climate change. - learns methods and methods of using tools for the quantification of the terms of a hydrogeological balance, on a local and global scale - knows the main types of landslides that characterize the different geological and environmental contexts - understands the interaction between precipitation events and instability phenomena at the scale of the single slope - understands the relationship between climate and landslides in a long-term and large-scale perspective, in order to develop quantitative scenarios of evolution of hydrogeological instability in response to climate change - learns the main active and passive techniques for the mitigation of hydrogeological risks.

Course contents

Content of two distinct courses with the Module 1 in common

88274-Protection and Contamination of Groundwater Resources

MSc Science and Management of Nature

(international programme Global Change Ecology and Sustainable Development Goals)

Module 1 (3 CFU) – Groundwater and Climate Change (teacher: prof. Alessandro Gargini)

Modulo 2 (3 CFU) – The contamination of groundwater (teacher: prof. Alessandro Gargini)

99514-Groundwater Resources and Landslide Risk in a Changing Climate

MSc Science of Climate

Module 1 (3 CFU) – Groundwater and Climate Change (teacher: prof. Alessandro Gargini)

Modulo 2 (3 CFU) – Landslides and hydrogeologic risk (teacher: prof. Alessandro Simoni)

Content of Module 1 “Groundwater and Climate Change”

Shared among the two courses

1) Global hydrologic cycle: processes, fluxes and stocks. Interactions between atmosphere, surface water and groundwater. Global groundwater budget. Contribution of groundwater to global runoff.

2) Introduction to groundwater flow systems. Aquifers and aquitards.

3) Hydrogeological and ecological classification of springs. Pumping wells and spring uptake. Hydrogeological monitoring.

4) Groundwater dependent ecosystems. Base flow and minimum environmental flow. Ecological services provided by groundwater and springs.

5) The effects of climate change and droughts on groundwater flow systems.

6) The effects of global change and overdrafting of water resources: dewatering, salinization, subsidence.

7) Resilience of groundwater to climate change, integrated management of water resources, managed artificial recharge

Content of Module 2: Contamination of groundwater

For Global Change only

1) Natural or man-originated contaminants able to induce impairment of soil and groundwater quality. Inorganic and organic contaminants (heavy metals, hydrocarbons, chlorinated solvents, emerging organic contaminants).

2) The properties, mobility, toxicity and cancerogenicity of contaminants of soil and groundwater. Modalities of migration of contaminants in unsaturated zone and groundwater.

3) Sanitary and ecological risk. Risk assessment

4) Contaminated sites. Human health and ecological issues posed by contaminated sites. Monitoring natural attenuation. Phytoscreening

5) Protection of well-heads and springs from contamination.

Content of Module 2: Landslide and hydrogeological risk

For Science of Climate only

1) Insights into landslides, their classification and their driving mechanisms.

2) Triggering factors of landslides with emphasis on their mutual relationships.

3) Action of Climate Change on the frequency and magnitude of natural hazards based on available data and theoretical predictions.

4) Development of landslide processes and their propagation along with their potential impact on infrastructures and society.

5) Practical exercises about examples of specific hazardous events and the involved processes, enabling students to recognize and understand the potential danger of landslides and assess related risk.

6) Mitigation measures and the associated potential in risk reduction in relation to climate change.

Readings/Bibliography

Lessons of the teachers downloadable from the university web site https://iol.unibo.it/ .

The material will be available the day preceding the lesson.

The materials provided by the teachers, along with the notes of the lessons taken by the students, are considered adequate for the preparation of the exam

Following textbooks are recommended as integration tools for the preparation of the exam, particularly for not attending students

For Modules taught by Alessandro Gargini:

A.Freeze - J. Cherry (1979) - Groundwater. Prentice Hall

C.W. Fetter (2000, fourth edition) - Applied Hydrogeology. Waveland Press

For Module 2 taught by Alessandro Simoni of the course:

Water resources and hydrogeologic risk

Clague J.J. and Stead D. (eds.), 2012. Landslides: types, mechanisms and modelling. Cambridge University Press, 420 pp.

Lu N. and Godt J.W., 2012. Hillslope hydrology and stability. Cambridge University Press, 436 pp.

Teaching methods

Theoretycal lessons in classroom. Group exercises about case studies also by the use of personal PC of students

For the course of Protection and Contamination of Groundwater Resources 1 CFU will be devoted to field activities with practical demonstration of hydrogeological monitoring and characterization of Groundwater Dependent Ecosystems.

As concerns the teaching methods of the course  all students must attend Module 1, 2 [https://www.unibo.it/en/services-and-opportunities/health-and-assistance/health-and-safety/online-course-on-health-and-safety-in-study-and-internship-areas] online, while only students of Global Change Ecology programme must attend also Module 3 on health and safety (to be attended in class for the formation to safety measures for teaching activities on the field). Information for students about Module 3 attendance schedule is available on the website of the degree programme

Assessment methods

Oral exam based on theoretical questions and interpretation of real cases. The votation is expressed on 30/30 quote.

Teaching tools

Videoprojector, PC, blackboard. For students of Global Change demonstration of the use of instruments on the field.

For hydrogeological exercises software for automatic interpolation will be used

For Module 2 of Water Resources and Hydrogeologic risk course  slope stability software will be used

Office hours

See the website of Alessandro Gargini

See the website of Alessandro Simoni