Michael Tjernström, Caroline Leck, Martin Jakobsson
The ASCOS (Arctic Summer Cloud Ocean Study) expedition was carried out during summer 2008 in high-latitude areas in the Arctic Ocean.
With the Swedish icebreaker Oden serving as the research platform, a range of scientific investigations were made. The main target was to study the formation and life cycle of low-altitude Arctic clouds in the central Arctic. The expedition was interdisciplinary and covered observations of the physics and chemistry of the atmosphere and the upper ocean, meteorology, cloud microphysics and aerosols and upper-ocean biogeochemistry. High-resolution bathymetry is also available.
The expedition started and ended in Longyearbyen on Svalbard, Norway, and lasted from Augst 1 to September 9, 2008.
Datasets
Meteorology
Weather stations and ship log
Aerosols
Radiosoundings
Cloud-base heights and cloud fractions
Visibility, precipitation and present weather
Remote sensing of clouds
Wind profilers
Temperature profiles
Longwave radiation spectra and temperatures
Micrometeorological data
Tethered sonde profiles
Ultraviolet radiation
Meteorological model data
Oceanography
Ocean temperature and salinity profiles
Ocean turbulent fluxes
Radiation on and under the ice
Bubble sizes in the water
Marine geology
Bathymetry
Map
Citation
Michael Tjernström, Caroline Leck, Martin Jakobsson (2024) Data from expedition ASCOS, Arctic Ocean, 2008. Dataset version 4. Bolin Centre Database. https://doi.org/10.17043/oden-ascos-2008-expedition-4
References
Tjernström, M. et al. 2014. The Arctic Summer Cloud Ocean Study (ASCOS): overview and experimental design. Atmospheric Chemistry and Physics, 14, 2823–2869. https://doi.org/10.5194/acp-14-2823-2014
Comments
The expedition took place during the International Polar Year (IPY) 2008. ASCOS was likely the largest single Arctic Ocean atmospheric effort during the IPY and was endorsed under the AICI-IPY umbrella under SOLAS.
Principal investigators
- Michael Tjernström and Caroline Leck, Department of Meteorology, Stockholm University, Sweden
See more information at the Swedish Polar Research Secretariat.
Version history
Version 4
29 datasets. One aerosol dataset added.
Version 3
High-resolution bathymetry data added and collection harmonized with other expeditions in the Oden data repository.
Version 2
Same data as in version 1, but structured as a collection of 27 individually published datasets.
Version 1
Initial release. Provided with link to Arctic Summer Ocean-Cloud study website containing the data.