CHEMICAL OCEANOGRAPHY

CHEMICAL OCEANOGRAPHY

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iten
Code
61891
ACADEMIC YEAR
2017/2018
CREDITS
6 credits during the 1st year of 10590 HYDROGRAPHY AND OCEANOGRAPHY (LM-75) GENOVA

6 credits during the 1st year of 9018 Chemical Sciences (LM-54) GENOVA

6 credits during the 1st year of 10556 MARINE SCIENCES (LM-75) GENOVA

6 credits during the 1st year of 10556 MARINE SCIENCES (LM-75) GENOVA

SCIENTIFIC DISCIPLINARY SECTOR
CHIM/12
LANGUAGE
English
TEACHING LOCATION
GENOVA (HYDROGRAPHY AND OCEANOGRAPHY)
semester
2° Semester

AIMS AND CONTENT

LEARNING OUTCOMES

The course aims to provide the current status of knowledge on the chemical composition of the  seawater and of the processes that occur in the  marine environment changing the distribution of the main chemical species.

Teaching methods

Formal Lectures: Each lecture covers the main concepts and topics of the course content  by the use of PowerPoint presentations. Appropriate references to parts of course textbooks and suggested references are provided at each lecture.

SYLLABUS/CONTENT

 Scope and history of chemical oceanography

1. Physical properties of water. Salt in solution; sea water as an electrolyte

2. Composition of seawater

2.1 Major constituents of seawater. Definition and methods of measure of salinity. Chemical tracers elements  (CFCs, oxygen isotopes) to quantify the mixing processes in the ocean.

2.2 The role and variability of nutrients (nitrogen, phosphorus and silicium) in seawater.

2.3  Organic matter in the sea: primary production and other sources of organic matter. Humic acids

2.4 Simple gases. Solubility in water and atmospheric exchange. Dissolved oxygen. Ocean's CO2 system

2.5 Distribution and cycling of trace metals.

3 Chemical equilibria in marine environments: equilibria of carbonate species; redox chemistry; metal complexing reactions.

4. Speciation of metal in sea water by model approach and by analytical methods.

5 Exchange at the boundaries

5.1 Air -sea exchange

5.2 Sediment -water exchange

6 Solid phases

6.1 Suspended particulate matter and sediments.

6.2 Trace elements-solid phase reactions: adsorption, ionic exchange, precipitation and co-precipitation reactions.

6.3 Solid speciation and selective extraction procedures.

7 Effects of trace metals towards marine biota: speciation, availability, uptake, toxic effects.

8  Standard operational procedures of sampling and analysis. Data pre treatment.

 

RECOMMENDED READING/BIBLIOGRAPHY

F.Millero  “Chemical Oceanography”, CRC Press, 1996

S.M. Libes “An introduction to marine biogeochemistry”, Wiley & Sons,  1992

PowerPoint presentations  and bibliographic references available at chemical oceanography  course aulaweb page.

TEACHERS AND EXAM BOARD

Ricevimento: Every day by appointment.

Exam Board

PAOLA FRANCESCA RIVARO (President)

MARIA CARMELA IANNI

MARCO GROTTI

FRANCISCO ARDINI

LESSONS

Teaching methods

Formal Lectures: Each lecture covers the main concepts and topics of the course content  by the use of PowerPoint presentations. Appropriate references to parts of course textbooks and suggested references are provided at each lecture.

EXAMS

Exam description

Oral exam

Assessment methods

The exam consists in an oral test. The oral examination is always conducted by two teachers and lasts for at least 30 minutes. In this way, the Commission is able to verify the achievement of the objectives of teaching by asking questions about the program of the course. When goals are not achieved, the student is invited to deepen his knowledge and to ask further explanation to the teacher. 

FURTHER INFORMATION

Class attendance is recommended.