Meteorological features during Phase I of the Coordinated Eastern Arctic Experiment (CEAREX) from 17 September 1988 to 7 January 1989.

摘要

The synoptic and mesoscale meteorological conditions were analyzed for Phase I ofthe Coordinated Eastern Arctic Experiment (CEAREX) from 17 September 1988 to 7January 1989. Meteorological observations from a research ship (R/V Polarbjoern), anarray of drifting buoys and satellite imagery from DMSP and NOAA satellites were theprimary tools for analysis. Several short periods of high cyclone activity followed bylong periods of high pressure dominated the weather pattern in the eastern Arctic Oceanfrom Greenland to Novaya Zemlya for this period. Two case studies are presented. Aninfrequent cyclogenesis event that formed within a strong baroclinic zone over Arcticpack ice was observed in a "baroclinic leaf on satellite imagery. Ship and drifting buoyobservations provided critical insight to the location and intensity of the "leafs" subsequentvertical development to the surface. In the second study, a boundary layer frontwas observed in the East Greenland Sea by satellite imagery. The front then movednortheast into Fram Strait and a polar low formed at the northern end of the front. Theevent lasted less than 24 h and would not have been observed except through satelliteimagery.