de.dkrz.wdcc.iso2250976 series UNI_HH_MI_ARKTIS1991 Gottfried Kruspe Max-Planck-Institut fuer Meteorologie http://www.mpimet.mpg.de/ author Prof. Dr. Burghard Brümmer University of Hamburg (MI) http://www.mi.uni-hamburg.de/ author Dr. Gerd Müller University of Hamburg (MI) http://www.mi.uni-hamburg.de/ author Christian Wetzel University of Hamburg (MI) http://www.mi.uni-hamburg.de/ author Prof. Dr. Burghard Brümmer University of Hamburg (MI) http://www.mi.uni-hamburg.de/ principalInvestigator Dr. Gerd Müller University of Hamburg (MI) http://www.mi.uni-hamburg.de/ pointOfContact Dr. Gerd Müller University of Hamburg (MI) http://www.mi.uni-hamburg.de/ originator 2022-04-25T05:19:24 ISO 19115 ISO 19139 / DKRZ ISO Simple Profile V1.0 http://doi.org/doi:10.1594/WDCC/UNI_HH_MI_ARKTIS1991 ARKTIS 1991 - Cellular Convection over the Norwegian Sea ARKTIS 1991 - Cellular Convection over the Norwegian Sea 2011-06-22 creation None ARKTIS 1991 - Cellular Convection over the Norwegian Sea: radiosoundings at the research vessel Valdivia and station Bear Island doi:10.1594/WDCC/UNI_HH_MI_ARKTIS1991 Dr. Gerd Müller University of Hamburg (MI) http://www.mi.uni-hamburg.de/ originator doi:10.1594/WDCC/UNI_HH_MI_ARKTIS1991 The field experiment ARKTIS 1991 was an expedition planned by meteorologists of the Collaborative Research Centre 318 entitled "Climatically relevant processes in the system ocean-atmosphere-ice" which is funded by the German Research Foundation and established at the University of Hamburg. The expedition took place in the Norwegian Sea between Northern Norway, Bear Island and Jan Mayen during the period 17 February until 15 March 1991. The main aim of the experiment was the investigation of cold air outbreaks from the surrounding Arctic ice sheets. During such weather episodes the air mass coming from the ice is rapidly modified over the water due to the contrasts in temperature, heat conduction, humidity and roughness between ice and water. This leads to the formation of a "new" boundary layer. Its depth, mean temperature and moisture increases with increasing distance from the ice edge mainly due to sensible and latent heat supply from the ocean. The investigations of cold air outbreaks and Arctic stratus by scientists of the Collaborative Research Centre 318 began already three years before with the field experiment ARKTIS 1988 which took place in the area west of Spitsbergen in May 1988. ARKTIS 1991 is a continuation of this work under winterly weather conditions. ARKTIS 1991 was followed by the experiment ARKTIS 1993. As in ARKTIS 1988 the research vessel Valdivia and the two research aircraft FALCON-20 of the DLR at Oberpfaffenhofen and DO-128 of the TU Braunschweig were at our disposal. Radiosonde measurements were performed on board of RV Valdivia and on Bear Island. Gottfried Kruspe Max-Planck-Institut fuer Meteorologie http://www.mpimet.mpg.de/ author Prof. Dr. Burghard Brümmer University of Hamburg (MI) http://www.mi.uni-hamburg.de/ author Dr. Gerd Müller University of Hamburg (MI) http://www.mi.uni-hamburg.de/ author Christian Wetzel University of Hamburg (MI) http://www.mi.uni-hamburg.de/ author Prof. Dr. Burghard Brümmer University of Hamburg (MI) http://www.mi.uni-hamburg.de/ principalInvestigator Dr. Gerd Müller University of Hamburg (MI) http://www.mi.uni-hamburg.de/ pointOfContact observational data theme radiosonde theme ship theme buoy theme arctic theme ice theme eng 3.0 22.0 69.0 75.0 1991-02-17 1991-03-15 1 1991-02-21 1991-03-14 1 air_pressure modelResult hPa air_pressure modelResult hPa air_temperature modelResult not filled air_temperature modelResult not filled dew_point_temperature modelResult not filled dew_point_temperature modelResult not filled height modelResult m height modelResult m relative_humidity modelResult not filled relative_humidity modelResult not filled specific_humidity modelResult g kg-1 specific_humidity modelResult g kg-1 wind_from_direction modelResult degree wind_from_direction modelResult degree wind_speed modelResult m s-1 wind_speed modelResult m s-1 tar-File(s) tar-File(s) distributor Mb 5 http://doi.org/doi:10.1594/WDCC/UNI_HH_MI_ARKTIS1991 series