Observations of Ice-Ocean Eddy Streets in the Sea of Okhotsk off the Hokkaido Coast Using Radar Images
Observations of Ice-Ocean Eddy Streets in the Sea of Okhotsk off the Hokkaido Coast Using Radar Images
复制标题
利用雷达图像观测北海道沿岸鄂霍次克海的冰海涡街
DOI：
10.1175/1520-0485(1990)020
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发表时间：
1990
影响因子：
3.5
通讯作者：
K. Ohshima
中科院分区：
文献类型：
--
作者：
M. Wakatsuchi;K. Ohshima
摘要 这项研究研究了相当规则的海浪运动的特征，其中使用海浮冰作为示踪剂成功地可视化了一些涡街或向后的破碎波。这些检查是使用过去 20 年（1969-88 年）收集的雷达图像数据的时间序列进行的；雷达图像与实际图案的对应关系通过飞机观测得到部分证实。冰海涡街或向后碎波模式与海岸线平行，距北海道海岸约20公里；涡街也对应于大豆暖流和较冷、含盐量较低的近海水域之间的边界。波动的特征是波长为40-55公里，相速度为14-20公里·天-1，周期为2.3-3.5天。当浮冰具有较小的冰浓度（由大小均匀的浮冰和微弱的风组成）时，可以观察到规则的冰海波浪运动模式。海浮冰作为一种高效的流动...
Abstract This study examines the features of fairly regular ocean-wave motion in which some eddy streets or backward breaking waves are successfully visualized using sea ice floes as a tracer. These examinations are made using the time sequence of radar imagery data collected during the past 20 years, 1969–88; the correspondence of the radar images with the actual pattern is partially confirmed through aircraft observations. The ice-ocean eddy street or backward breaking wave pattern runs parallel to the coastline at a distance of about 20 km from the Hokkaido coast; the eddy street also corresponds to a boundary between the Soya Warm Current and colder, less saline offshore water. The wave motion is characterized by wavelengths of 40–55 km, phase velocities of 14–20 km day −1 and periods of 2.3–3.5 days. The regular ice-ocean wave motion pattern was observed when pack ice had a small ice concentration composed of uniform sized ice floes and weak winds. The sea ice floes serve as a highly effective flow i...