Development of a measurement method of sea-ice thickness by acoustic Doppler current profiler
| Project/Area Number |
23654163
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Meteorology/Physical oceanography/Hydrology
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| Research Institution | Hokkaido University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
OHSHIMA Keiichiro 北海道大学, 低温科学研究所, 教授 (30185251)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Keywords | 海氷厚 / 係留観測 / 超音波ドップラー流速計 / 超音波氷厚計 / 海氷 |
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| Research Abstract |
Sea-ice thickness is generally measured by specific ice-profiling sonar (IPS). We carried out mooring observations off the northern Alaska to develop a method of sea-ice thickness measurement by widely-used oceanographic instrument, acoustic Doppler current profiler (ADCP). We have successfully obtained valid data by a pair of an IPS and an ADCP at total of four locations over three-year period and derived sea-ice draft from raw IPS data.
Using sea-ice and oceanic data obtained by our mooring observations, we have investigated break-up of coastal landfast sea ice, production of supercooled water and frazil ice within a coastal polynya, and compared our ice-thickness data by IPS with those by airborne electromagnetic sensor and ice-drift data by ADCP with those by coastal radar.
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Report
(4 results)
Research Products
(32 results)
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[Presentation] 2010年夏季北極海バロー海底谷における熱輸送
Author(s)
伊東 素代, 菊地 隆, 深町 康, Robert Pickart, 大島 慶一郎, 清水 大輔, Kevin Arrigo, Svein Vagle, Jianfeng He, Carin Ashjian
Organizer
2013年度日本海洋学会秋季大会
Place of Presentation
北海道大学学術交流会館（札幌市）
Related Report
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[Presentation] Antarctic and Arctic land-fast sea ice: deriving parent water mass properties changes from sea ice cores
Author(s)
I. J. Smith, A. J. Gough, P. J. Langhorne, H. Eicken, A. R. Mahoney, G. H. Leonard, R. J. Van Hale, Y. Fukamachi, S. Jendersie, J. M. Jones, and T. G. Haskell
Organizer
IGS International Symposium on Sea Ice in a Changing Environment
Place of Presentation
C3コンベンションセンター（オーストラリア・ホバート）
Related Report
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[Presentation] アラスカバロー沖チャクチ海ポリニヤにおける海氷・海洋の係留観測
Author(s)
深町康, 大島慶一郎, 清水大輔, 伊藤優人, 岩本勉之, 松村義正, Hajo Eicken, Andrew R. Mahoney
Organizer
2014年度日本海洋学会春季大会シンポジウム「北極海における海洋海氷変動とその将来予測」
Place of Presentation
東京海洋大学品川キャンパス（東京都港区）
Related Report
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