701-0216-00L  Biogeochemical Cycles

SemesterAutumn Semester 2017
LecturersB. Wehrli
Periodicityyearly recurring course
Language of instructionGerman

AbstractBiogeochemical cycles are discussed from global or regional perspectives, important methods to determine reaction rates and pathways are introduced and typical reaction mechansims are discussed at a molecular level.
ObjectiveThe students will be able to
* explain how molecular processes govern global biogeochemical cycles;
* apply simple numerical models of biogeochemical processes (equilibrium-, mass-balance, transport-reaction models);
* interpret concentration changes in time and space and deduce rates of biogeochemical processes.
ContentBiogeochemical cycles in aquatic systems will be discussed from three perspectives: 1) Case studies with a gloabal or regional point of view will document the relevant background information on rates, time-scales and reservoirs of selected element cycles such as C, N, P, S, Fe, Mn Cd, Cu, Mo and As. 2) From a practical perspective we will compare the potential and limits of different methods to quantify biogeochemical processes in aquatic systems. 3) On a molecular level we will discuss mechanisms and pathways of relevant reactions.
Lecture notesLecture notes and assignments will be available in German
LiteratureSimilar coverage of some topics: Steven R. Emerson, John I. Hedges: Chemical Oceanography and the Marine Carbon Cycle. Cambridge University Press 2008.
Prerequisites / NoticeBasic knowledge in chemistry and systems analysis