Winter school in atmospheric chemistry in Ny-Ålesund and at the University Centre in Svalbard - Trace gases and aerosols in the Arctic

Title: Trace gases and aerosols in the Arctic Responsible: Kim Holmén (NILU), Frode Stordal (UiO/NILU) og Lars R. Hole (UNIS/NILU). Guest Teachers: Christoph Heinze (Geophysical institute/University of Bergen), Juha-Pekka Tuovinen (Finnish meteorological institute). Others from the research community in Ny-Ålesund and universities in Oslo and Bergen. ECTS: 10 Duration: 5 weeks / 10-15 lectures per week. Material: ACIA-report, articles Teaching: Lectures at UNIS, two week visit in Ny-Ålesund (Zeppelin-stat ion and other stations such as Institut Polaire Francais and Japan Station for glaciology and climatic research ), exercises and model applications. Contents The course will describe chemical composition of the Arctic atmosphere, with focus on troposphe ric conditions. Anthropogeneous and natural sources will be treated in the biogeochemical cycles for different compounds. Sources and sinks for gases and aerosols and their chemical transformation under transport to and from the Arctic will be discussed in a global setting. Main focus will be given to climate gases, oxidants (tropospheric ozone) and their precursors, acid rain, stratospheric ozone and aerosols with and their role in the climate system. Our course will be based on observations of gases an d aerosols in the Arctic, with emphasis on data from Ny-Ålesund. Theoretical models for the interpretation of data will be introduced. We will also describe how to plan and carry out experiments in atmospheric chemistry through team work and we will have critical evaluation of previous experiments. Measurement data from FLUXNET and ILEAPS will also be applied.