ACSYS 2003 - Arctic Atmospheric Boundary Layer and Sea Ice Interaction Study north of Spitsbergen: meteorological measurements of the research aircraft Falcon, 11 autonomous ice buoys and radiosoundings at the research vessels Aranda and Polarstern


From 26 March to 22 April 2003, Germany and Finland carried out a joint expedition (ABSIS - Arctic Atmospheric Boundary Layer and Sea Ice Interaction Study) to test and improve the description of the ocean-ice-atmosphere interaction processes. ABSIS was part of the German ACSYS (Arctic Climate System Study) contribution supported by the Ministry of Education and Research and was connected with the RV Polarstern Winter Arctic Polynia Study expedition. The main objectives of ABSIS were to collect data sets to quantify and study: (a) the thermodynamic and dynamic interaction processes at the ice-atmosphere interface and (b) the vertical structure of the atmospheric boundary layer, particularly the Arctic inversion. The latter is a nearly permanent feature over the sea ice. The Arctic inversion is particularly low and strong in winter and effects the exchange between the boundary layer and the free atmosphere as well as the interaction processes at the ice surface.

                To achieve the above-mentioned objectives various platforms were applied and placed within a 200 km2 area north of Spitsbergen during the expedition period 26 March to 22 April 2003: RV Polarstern and RV Aranda, a research aircraft (Falcon-20 of the German Aerospace Center), 11 automatic ice buoys, and one ice camp station close to RV Polarstern (8-18 April 2003 only).

                In addition to the published datasets several other measurements were performed during the experiment. Corresonding datasets will be published in the near future and are available on request.
                Details about all used platforms and sensors and all performed measurements are listed in the fieldreport.
                The following datasets are available on request: ground data at RV Aranda, ground data at RV Polarstern, ice station near RV Polarstern
Metadata Access
Creator Jouko Launiainen; Dr. Gerd Müller; Prof. Dr. Burghard Brümmer; Dr. Amelie Kirchgaessner; Christian Wetzel
Publisher World Data Center for Climate (WDCC)
Publication Year 2012
Rights scientific use: For scientific use only
OpenAccess true
Language English
Resource Type collection ; collection
Format tar-File(s)
Size 59 MB
Version 1
Discipline Earth System Research
Spatial Coverage (-20.000W, 76.000S, 10.000E, 83.000N)
Temporal Coverage Begin 2003-03-27T00:00:00Z
Temporal Coverage End 2003-07-31T00:00:00Z