The coherent structure inside the oceanic turbulence around Japan-Islands-Chain

日本列岛链周围海洋湍流内部的相干结构

• 批准号: 04452234
• 负责人: NISHIMURA Tsukasa
• 金额: $ 2.5万
• 依托单位: Science University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-04452234/
• 关键词: NOAA; AVHRR; daily monitoiring; Sea Mark method; coherent structure; eddy sheddings; interlockings; Shikoku-Basin; Kuroshio meandering; SeaMark追跡法; NOAA直接受信解析; 海流乱流場; 組織的渦構造; wavelet解析; 乱流境界層; 逆カスケード過程; 黒潮変動; 海洋乱流場; NOAA; AVHRR; 衛星データ直

(1) NOAA/AVHRR-based daily monitoring was performed on the hydrodynamics of the coherent structure dominating the oceanic turbulence around Japan-Islands-Chain.(2) Applying the Sea Mark method, an instantaneous turbulence measurement was realized, that is characterized by 6 hours in sampling time and 3,000km in space scale.(3) Eddy sheddings from the Giant-Cusps on the Pacific-Coast were described in space, time and frequency domains with NOAA/AVHRR images, instantaneous turbulence fields and the K-U index diagram.(4) Coherent structure interlocking mechanism inside the closed sea basins was revealed proceeding inside the Kuril-Basin, jaoan-sea, Oyashio-region and the Shikoku-Basin.(5) Some discrete modes of interlockings inside the Shikoku-Basin were reduced to cause the meandering and nonmeandering of the Kuroshio path.(6) The results gained in this project were published in a book titled "THE COHERENT STRUCTURE INSIDE THE OCEANIC TURBULENCE AROUND JAPAN-ISLANDS-CHAIN".

(1)基于NOAA/AVHRR对主导日本岛链周围海洋湍流的相干结构的水动力学进行了每日监测。(2)应用海标方法，实现了采样时间为6小时，空间尺度为3000公里的瞬时湍流测量。(3)利用NOAA/AVHRR图像、瞬时湍流场和K-U指数图，在空间、时间和频率域上描述了太平洋沿岸巨尖的涡流脱落。(4)揭示了千岛盆地、黄安海、Oyashio地区和四国盆地。(5)减少了四国盆地内部的一些离散模式，以引起黑潮路径的曲折和非曲折。(6)本项目的成果发表在一本名为《环日本-岛链海洋湍流内部的相干结构》一书中。

项目成果

Tsukasa NISHIMURA: "The coherent structure inside the Oceanic Turbulence around Japan-Islands-Chain" Tsukasa NISHIMURA, 132 (1995)

Tsukasa NISHIMURA：“日本群岛链周围海洋湍流内部的相干结构” Tsukasa NISHIMURA，132 (1995)

大津 仁史: "海洋の組織的渦構造強調のためのNOAA/AVHRRハイパスフィルタ処理" 日本リモートセンシング学会第16回学術講演会論文集. 16. 147-150 (1994)

Hitoshi Otsu：“强调海洋系统涡流结构的 NOAA/AVHRR 高通滤波器处理”日本遥感学会第 16 届学术会议论文集 16. 147-150 (1994)。

西村司: "黒潮乱流場の沿岸潮位データwavelet解析" 日本リモートセンシング学会第14回学術講演会論文集. 14. 91-94 (1993)

西村司：《黑潮湍流场沿岸潮位数据的小波分析》日本遥感学会第14届学术会议论文集14. 91-94（1993）。

Tsukasa NISHIMURA: "Coherent Structure of Tidal Turbulence in a Rotating System of Osaka-Bay" Proc.of 24th ICCE. (発表予定). 10pp (1995)

Tsukasa NISHIMURA：“大阪湾旋转系统中的潮汐湍流的相干结构”，第 24 届 ICCE 论文集（待提交）。

西村司: "回転系潮流乱流場の組織的渦構造と湾や灘の質量輸送" 海岸工学論文集. 40. 226-230 (1993)

Tsukasa Nishimura：“旋转潮汐湍流场的组织涡流结构和海湾和海滩的质量传输”海岸工程杂志 40. 226-230 (1993)。