Volunteer Ship Survey of Japan-Australia Oceanic Variability

日本-澳大利亚海洋变化的志愿船调查

• 批准号: 09041110
• 负责人: KANEKO Arata
• 金额: $ 5.12万
• 依托单位: Hiroshima University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B).
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09041110/
• 关键词: ADCP; Commercial Ship Observation; Western Pacific Ocean; Equatorial Current System; El nino; Climate change; Long-Term Report Survay; 長期反復計測; 異常気象; 黒潮; 商船; エル・ニ-ニョ

In this fiscal year, the M. V. First Jupiter had one round-trip cruise to western Australia, two round trip cruises to eastern Australia end one round-trip cruise to Canada after she came back to Japan from Europe in June. After that, she entered the dock in Singapore for maintenance every three years. At this chance, two investigators of Hiroshima University visited the First Jupiter in Singapore for examining the present status of the ship-mounted ADCP, and found that the ADCP itself was well maintained while a little of mud was stored inside the plastic window below the ADCP and can be used without any repair for coming operation. During February 20-22, 2000, the head investigator and two investigators of Hiroshima University visited the OSIRO Division of Oceanography, Australia for exchanging the observation data obtained newly and reviewing the previous research. The major results for this fiscal year are summarized as follows :(1) There was no North Equatorial Counter Current (NECC) in the data of January 1999, but it appeared around 3N as an energetic current in the data of July 1999. The NECC disappeared again in the September-October data of 1999.(2) The Kuroshio south of the Boso Peninsula was separated from the shore until July 1999 and close to the shore in September-October of 1999. The transport of the Kuroshio was remarkably increased in October 1999. This transport increase may be related to the large meander of the Kuroshio which took place in November 1999(3) The axis of the North Equatorial Current was placed at 14N in January 1999 and then shifted to 10N.

本财年，“第一木星号”于6月从欧洲返回日本后，完成了一次往返西澳大利亚的航行、两次往返东澳大利亚的航行以及一次往返加拿大的航行。此后，她每三年进入新加坡码头进行一次维护。趁此机会，广岛大学的两名研究人员前往新加坡第一木星号考察了舰载ADCP的现状，发现ADCP本身维护良好，而ADCP下方的塑料窗内储存了少量泥浆，无需任何维修即可使用。 2000年2月20-22日，广岛大学的首席研究员和两名研究员访问了澳大利亚OSIRO海洋学部，交流了新获得的观测数据并回顾了以往的研究。本财年的主要成果概括如下：（1）1999年1月的数据中没有出现北赤道逆流（NECC），但在1999年7月的数据中出现了3N左右的高能流。1999年9-10月的数据中NECC再次消失。（2）房总半岛以南的黑潮直到1999年7月才与海岸分离，并于1999年7月接近海岸。 1999年9月至10月。1999年10月黑潮输送量显着增加。这种输送量增加可能与1999年11月发生的黑潮大曲流有关。(3)北赤道洋流轴于1999年1月置于北纬14°，后移至北纬10°。

项目成果

Y. Yuan: "Tides and short-term variabilities in the Kuroshio west of Yonakuni-jima"Acta Oceanologica Sinica. 18(3). 311-324 (1999)

Y. Yuan：“与那国岛以西黑潮的潮汐和短期变化”海洋学报。

Z.Yuan: "Variabilities of the westem Pacific surface current"Proc.10th PAMS/JECSS Workshop. B.17-B.20 (1999)

Z.Yuan：“西太平洋表面流的变化”Proc.10th PAMS/JECSS Workshop。

A. Kaneko: "Repeat ADCP survey of the western Pacific surface current by a commercial ship"International WOCE Newsletter. 34. 31-35 (1999)

A. Kaneko：“利用商船重复 ADCP 调查西太平洋海流”国际 WOCE 时事通讯。

S. -K. Byun: "Structure and vorticity of the current observed across the western channel of the Korea Strait in September of 1987-1989"Ocean Research. Vol.21,No.2. 99-108 (1999)

S.-K。

S.K.Byun: "Structure and Vorticity of the current observed across the westem channel of the Korea Strait in September of 1987-1989"Ocean Research. 21(2). 99-108 (1999)

S.K.Byun：“1987-1989 年 9 月观察到的朝鲜海峡西海峡洋流的结构和涡度”海洋研究。