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Meteorological Features during the Marginal Ice Zone Experiment from 20 March to 10 April 1987.

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Master's thesis,

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Described are synoptic and mesoscale meteorological conditions which occurred in the marginal ice zone MIZ of the Greenland sea Fram Strait. Meteorological measurements were made from three ships and weather analysis and ice edge location analysis were provided by shore meteorological support at Tromso, Norway. MIZEX 1987 is separated into five periods with distinct meteorological conditions. In the first period, from 20 to 23 March, the MIZ region was dominated by a large scale surface high pressure system. During the second period, from 24 to 27 March, a mesoscale boundary-layer front dominated the MIZ. This front was the object of a more detailed case study. During the third period, from 28 to 31 March, a weak surface synoptic-scale low pressure system dominated the MIZ. During the fourth period, from 1 to 3 April, a low developed 100 km east of Greenland and subsequently moved to the east, filling when it reached central Norway. During the fifth and final period, from 4 to 10 April, two lows developed 100 km north of Iceland which traveled northeastward along the classic secondary climatological storm track to a position 100 km southwest of the Svalbard Islands. When the first low of this fifth period stalled and was overtaken by the second low of this fifth period a combined and considerably enhanced system developed which extended along the west coast of the Svalbard Islands to the Norwegian Sea. All described features appeared clearly on NOAA 9 and 10 imagery and surface sensed properties are related to the satellite sensed properties.

Subject Categories:

  • Meteorology
  • Snow, Ice and Permafrost

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