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对主导日本列岛海洋湍流的相干结构的水动力进行了日常监测。(2)应用Sea Mark方法实现了瞬时湍流测量，其特点是采样时间为6小时，空间尺度为3000公里。(3)在空间、时间和频率域上描述了太平洋沿岸巨尖峰的涡流脱落： NOAA/AVHRR图像、瞬时湍流场和K-U指数图。(4)揭示了千岛盆地、若安海、亲潮地区和四国盆地内部封闭海盆内部的相干结构连锁机制。(5 ) 四国盆地内部一些离散的连锁模式被减少，导致黑潮的曲流和非曲流(6) 该项目取得的成果发表在《日本列岛周围海洋湍流内部的连贯结构》一书中。

项目成果

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)。

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)

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）。

Otsu, H.: "A highpass filtering of NOAA/AVHRR data for the enhancements of oceanic coherent structure (in Japanese)" Proc.Conference JSRE. Vol.16. 147-150 (1994)

Otsu, H.：“用于增强海洋相干结构的 NOAA/AVHRR 数据的高通滤波（日语）”Proc.Conference JSRE。

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)。