LEARNING BY DOING Field course in hydrogeology€¦ · Field course in hydrogeology ... ER,...
Transcript of LEARNING BY DOING Field course in hydrogeology€¦ · Field course in hydrogeology ... ER,...
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BELEM, 16.04.2018 Anja Sundal & Clara Sena
Thanks to: Helen French, Carlos Duque, Helge Hellevang, Gijs Breedweld, Leif, Asbjørn, Brit Lisa Skjelkvåle, Afonso Nogueira, Fabio Domingos & Per Aagaard
LEARNING BY DOING
Field course in hydrogeology
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•WHY
•WHAT
•HISTORY
• IMPACT
Field course in hydrogeology
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Hydrogeologists must be prepared for field work!!
practical skills, independence, project planning
WHY ?
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EVIRONMENTAL GEOLOGY PROGRAM, OSLO - NORWAY
HYDROGEOLOGY / GEOCHEMISTRY «GEO 4360 Field methods in hydrogeology» 2 weeks in 2nd semester of M.Sc. studies
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• Environmental remediation, sustainable development and management of energy and water resources
• Job oportunities: academia, private and public sectors
• Stable market for Hydrogeologists
H H
THE NEED FOR HYDROGEOLOGISTS
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•WHY
•WHAT
•HISTORY
• IMPACT
Field course in hydrogeology
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1. Maps/GPS, field and lab work, project management, literature studies and communicating results
2. Drilling of groundwater wells, geotechnical sounding
3. Ground- surface- and soilwater sampling: • field parameters, geochemistry, pollution
4. Field tests to estimate hydraulic properties and flux:
• saturated / unsaturated zones + rivers and catchment areas
5. Geophysical methods:
• Electrical resistivity, Seismics, Georadar
METHODS (LEARNING GOALS)
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Drilling and pumping groundwater wells
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Geophysical methods: seismics, ER, georadar
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Geophysical methods: seismics, ER, georadar
Measure: electrical resistivity (ER)
Data: map of high and low Resistivity to electrical current inthe ground
Interpretation: • Groundwater table • Bedrock • Unsaturated zone
H
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Geophysical methods: seismics, ER, georadar
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Water sampling and chemistry: groundwater, lakes and rivers
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Estimation of hydraulic properties:
- capillary sampling - infiltration tests - slug tests - salt dilution - flow meters - slug tests - pumping tests
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THE END: The students prepare a regional interpretation of results and deliver a field report.
GROUNDWATER TABLE Chemistry (pH)
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•WHY
•WHAT
•HISTORY
• IMPACT
Field course in hydrogeology
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• 6 study areas in Norway
• Many international students
• Focus: water supply and/or pollutant transport
SINCE 1987 ….. !!!
FOLLDAL [2014, 2015, 2016]
ELVERUM [2017 + 2018]
GARDERMOEN [2010, 2011, 2012, 2013]
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FOLLDAL [2014, 2015, 2016] • Focus: water quality, acid mine drainage CHEM. MASS FLUX • Results: 3 MSc and input to several scientific reports
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ELVERUM [2017 + 2018]
Water supply for energy and drinking water in glaciofluvial sediments
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• Oil, fuel, pipeline leaks • Aviation and deicing • Flame retardants (PFOS) • Roads and salting • Energy wells • Construction work: water level lowering, clay destabilization
GARDERMOEN AIRPORT [2010, 2011, 2012, 2013]
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-- 2020 & 2021 -- HYDROGEOLOGY FIELD COURSE IN
PARÁ !!! (Salinópolis)
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WATER RESOURCES IN NORWAY
• Mostly lakes for drinking water, agriculture and industrial use
• Abundant and good quality, cheap
Maridalsvannet: filtering and UV treatment
OSLO 600.000 pax
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Norwegian landscapes – shaped by ice, filled with water
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http://stagingweb.ngu.no/blogg/da-amazonas-rant-ned-glomdalen
WATER RESOURCES IN NORWAY
500m
1
9
0
2
0
0
Groundwater in fractures and in glacial deposits: Mostly private and small scale consumption (20.000)
1
7
0
High K Intermediate K Low K
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Groundwater plays a vital role in protected biotopes, providing nutrious water, constant temperatures and stable water supply (flux)
Groundwater is also an energy resource for heating/cooling
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HYDROGEOLOGY
The science of water resources and groundwater – Important to learn also about geography and demography
Glomma is the largest river in Norway.
Catchment: 42 thousand km2
AMAZONAS: 6,9 million km2
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Preparing and learning (from the best) to work in Pará with Afonso Nogueira, Fabio Domingos and Clovis Maurity
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Salinas - Sand dunes - Lagoons - Estuaries - Water works - Urban areas
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•WHY
•WHAT
•HISTORY
•IMPACT
Field course in hydrogeology
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SOCIETY
• Data (groundwater flow, resources and water quality)
• Professional input to local authorities, government, and the private sector
• Collaboration with local communities
• Education (Master students, PhD students)
A contribution towards better environmental awareness
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OUTLOOK
• International cooperation, regional versus global challenges
• Public outreach: making science available and understandable
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OBRIGADA PELA VOSSA ATENÇÃO !