Barents Sea tidal and inertial motions from Argos ice buoys during the Coordinated Eastern Arctic Experiment
Barents Sea tidal and inertial motions from Argos ice buoys during the Coordinated Eastern Arctic Experiment
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北极东部协调实验期间阿戈斯冰浮标的巴伦支海潮汐和惯性运动
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发表时间：
1995
期刊：
影响因子：
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通讯作者：
R. Pritchard
中科院分区：
文献类型：
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作者：
C. Pease;P. Turet;R. Pritchard
调和分析被限制单独估计潮汐和惯性振荡迫使的冰运动，应用于协调北极东部实验（1988-1989）期间在北冰洋东部和巴伦支海的漂流多年海冰上部署的Argos浮标的观测位置。每隔15天估计一次潮汐分量，每隔3天估计一次惯性振荡。S2潮汐分量可与79°N以南的惯性运动区分开来，M2潮汐分量可与77.5°N以北的惯性运动区分开来。斯瓦尔巴群岛东南部斯匹次卑尔根河岸M2潮汐运动的冰速计算值高达70 cm s - 1，与Gjevik和Kowalik的区域潮汐模型（无冰覆盖）相当吻合。该技术强调了北极盆地（低）、巴伦支陆架（高）和斯匹次卑尔根海岸（极端）能量分布的区域差异。在巴伦支陆架上，冰运动中的M4潮汐分量通常与惯性振荡一样大。
A harmonic analysis, constrained to estimate separately ice motions forced by tides and inertial oscillations, was applied to observed positions of Argos buoys deployed on drifting multiyear sea ice in the eastern Arctic Ocean and Barents Sea during the Coordinated Eastern Arctic Experiment (1988–1989). Individual tidal components were estimated at 15-day intervals, and inertial oscillations were estimated at 3-day intervals. The S2 tidal component was distinguishable from inertial motions south of 79°N, and the M2 tidal component was distinguishable from the inertial motion north of 77.5°N. Computed ice velocities of up to 70 cm s−1 for M2 tidal motion over Spitsbergen Bank southeast of Svalbard agreed reasonably well with the regional tidal models (no ice cover) of Gjevik and of Kowalik. Regional differences in the energy distribution in the Arctic Basin (low), Barents shelf (high), and Spitsbergen Bank (extreme) were emphasized by this technique. The M4 tidal component in the ice motion was typically as large over the Barents shelf as the inertial oscillation.