| LI Tao,ZHAO Jinping,JIAO Yutian,HOU Jiaqiang,MU Longjiang. 2015. Regional characteristics of sea ice thickness in Canadian shelf and Arctic Archipelago measured by Ground Penetrating Radar. Acta Oceanologica Sinica, 34(5):110－116 |
| Regional characteristics of sea ice thickness in Canadian shelf and Arctic Archipelago measured by Ground Penetrating Radar |
| 利用探地雷达(GPR)观测加拿大北极群岛和陆架区海冰厚度空间分布特征 |
| Received:July 06, 2014 Revised:January 21, 2015 |
| DOI：10.1007/s13131-015-0612-0 |
| Key words:Arctic sea ice thickness Canadian Archipelago Ground Penetrating Radar |
| 中文关键词: 北极 海冰厚度 加拿大北极群岛 探地雷达 |
| 基金项目:The National Natural Science Foundation of China under contract No. 41206174; China Postdoctoral Science Foundation under contract No. 2012M511546; the Key Project of Chinese National Science Fundation under contract No. 41330960. |
| Author Name | Affiliation | E-mail | | LI Tao | Ocean University of China, Qingdao 266100, China | | | ZHAO Jinping | Ocean University of China, Qingdao 266100, China
Physical Oceanography Laboratory, Ocean University of China, Qingdao 266100, China | jpzhao@ouc.edu.cn | | JIAO Yutian | Ocean University of China, Qingdao 266100, China | | | HOU Jiaqiang | Ocean University of China, Qingdao 266100, China | | | MU Longjiang | Ocean University of China, Qingdao 266100, China | |
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| Abstract: |
| Ground Penetrating Radar (GPR) measurements of sea ice thickness including undeformed ice and ridged ice were carried out in the central north Canadian Archipelago in spring 2010. Results have shown a significant spatial heterogeneity of sea ice thickness across the shelf. The undeformed multi-year fast ice of (2.05±0.09) m thick was investigated southern inshore zone of Borden island located at middle of the observational section, which was the observed maximum thickness in the field work. The less thick sea ice was sampled across a flaw lead with the thicknesses of (1.05±0.11) m for the pack ice and (1.24±0.13) m for the fast ice. At the northernmost spot of the section, the undeformed multi-year pack ice was (1.54±0.22) m thick with a ridged ice of 2.5 to 3 m, comparing to the multi-year fast ice with the thickness of (1.67±0.16) m at the southernmost station in the Prince Gustaf Adolf Sea. |
| 中文摘要: |
| 2010年春季, 利用探地雷达在加拿大北极群岛和陆架区对海冰厚度的空间分布特征进行了观测。结果表明, 该海域的海冰厚度在横跨陆架区存在明显的空间不均匀性。最大的平整海冰厚度出现在博登岛以南的陆缘冰区域, 达到(2.05±0.09)米。大陆架边缘的冰间水道重新冻结, 北侧浮冰的厚度达到(1.05±0.11)米, 而南侧陆缘冰的厚度略大, 达到了(1.24±0.13)米。观测断面最北点的冰脊厚度为2.5-3米, 此处平整浮冰厚度达到(1.54±0.22)米, 略薄于古斯塔夫阿道夫王子海的平整陆缘冰(1.67±0.16米)。 |
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