ACSYS 2003 - Arctic Atmospheric Boundary Layer and Sea Ice Interaction Study


Brümmer, Burghard et al.

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
UNI_HH_MI_fielddata (Field Data of the Meteorological Institute, University of Hamburg)
Dr. Gerd Müller (
Fram Strait
Spatial Coverage
Longitude -20 to 10 Latitude 76 to 83
Temporal Coverage
2003-03-27 to 2003-07-31 (calendrical)
Use constraints
For scientific use only
Data Catalog
World Data Center for Climate
56.36 MiB (59095040 Byte)
completely archived
Creation Date
Cite as
Brümmer, Burghard; Launiainen, Jouko; Müller, Gerd; Kirchgaessner, Amelie; Wetzel, Christian (2012). 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. World Data Center for Climate (WDCC) at DKRZ.

[Entry acronym: UNI_HH_MI_ACSYS2003] [Entry id: 2250972]
observation: Level2c
All presented data is observational. Accuracy and precision are dependent on sensors and platforms. Details to sensor types, error sources and quality checking are given in Additional Information accompanying each dataset.;All datasets passed several quality checks. Quality control took place during the field phase; data were controlled during their use for research and and again before publishing.
Data were processed with objective algorithms (e.g. to reject values out of range) and were controlled subjectively by experienced researchers. The processing is described in detail in the documentation of each dataset.
In addition the buoy dataset contains unprocessed raw data files as provided by ARGOS.
Data acquisition is completed.
Result Date
1. Number of data sets is correct and > 0: passed;
2. Size of every data set is > 0: passed;
3. The data sets and corresponding metadata are accessible: passed;
4. The data sizes are controlled and correct: passed;
6. The format is correct: passed;
7. Variable description and data are consistent: passed
WDCC-TQA checklist
Method Description
Checks performed by WDCC. The list of TQA metrics are documented in the 'WDCC User Guide for Data Publication' Chapter 8.1.1
Method Url
Result Date
Contact typePersonORCIDInstitute
Contact Dr. Gerd Müller-University of Hamburg (MI)
Author Prof. Dr. Burghard Brümmer-University of Hamburg (MI)
Author Jouko Launiainen-Finnish Institute of Marine Research
Author Dr. Gerd Müller-University of Hamburg (MI)
Author Dr. Amelie Kirchgaessner 0000-0001-7483-3652University of Hamburg (MI)
Author Christian Wetzel-University of Hamburg (MI)
Principal Investigator Prof. Dr. Burghard Brümmer-University of Hamburg (MI)
Investigator Jouko Launiainen-Finnish Institute of Marine Research
Originator Dr. Gerd Müller-University of Hamburg (MI)
Technical Michael Offermann-University of Hamburg (MI)
Contributor --Finnish Institute of Marine Research
Contributor --University of Hamburg (MI)
Metadata Christian Wetzel-University of Hamburg (MI)

Is referenced by

[1] DOI Gabrielski, A.; Badin, G.; Kaleschke, L. (2015). Anomalous dispersion of sea ice in the Fram Strait region. doi:10.1002/2014jc010359

Attached Datasets (5)

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