AN ELEMENTARY ANALYSIS OF OCEANOGRAPHIC BASIC ELEMENT,'S STATISTICAL PROPERTY IN THE EAST CHINA SEA I. STATISTICAL RESEARCH OF MEASURED CURRENT VELOCITIES ON THE MID-PROVINCE OF THE CONTINENTAL SHELF

Gu Chuancheng; Lan Shufang; Fu Bingzhao

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AN ELEMENTARY ANALYSIS OF OCEANOGRAPHIC BASIC ELEMENT,'S STATISTICAL PROPERTY IN THE EAST CHINA SEA I. STATISTICAL RESEARCH OF MEASURED CURRENT VELOCITIES ON THE MID-PROVINCE OF THE CONTINENTAL SHELF

更新时间：2023-04-28

- AN ELEMENTARY ANALYSIS OF OCEANOGRAPHIC BASIC ELEMENT,'S STATISTICAL PROPERTY IN THE EAST CHINA SEA I. STATISTICAL RESEARCH OF MEASURED CURRENT VELOCITIES ON THE MID-PROVINCE OF THE CONTINENTAL SHELF
- Studia Marina Sinica Vol. -9, Issue 21, (1984)
- 作者机构：
  
  1. 中国科学院海洋研究所
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Gu Chuancheng, Lan Shufang, Fu Bingzhao. AN ELEMENTARY ANALYSIS OF OCEANOGRAPHIC BASIC ELEMENT,'S STATISTICAL PROPERTY IN THE EAST CHINA SEA I. STATISTICAL RESEARCH OF MEASURED CURRENT VELOCITIES ON THE MID-PROVINCE OF THE CONTINENTAL SHELF. [J]. -9(21):null(1984)
DOI：

Gu Chuancheng, Lan Shufang, Fu Bingzhao. AN ELEMENTARY ANALYSIS OF OCEANOGRAPHIC BASIC ELEMENT,'S STATISTICAL PROPERTY IN THE EAST CHINA SEA I. STATISTICAL RESEARCH OF MEASURED CURRENT VELOCITIES ON THE MID-PROVINCE OF THE CONTINENTAL SHELF. [J]. -9(21):null(1984) DOI：

摘要

关于我国广阔陆架海区实测流速的统计特性的研究,迄今尚未见到报告。近十余年来,致力于实测流速统计处理的国家计有美、苏、加、法、日和挪威等。但是,他们大多数侧重于大洋或深海中实测流速的统计特性研究,对浅海,特别是陆架海区则研究甚少。流速是海水运动的一个重要参数,其大小与其它水文要素的关系至为密切。实践表明,凡是海流经过的区域,无不同时引起水文要素的局地变化。我国东海水文状况比较复杂,无疑与该海域海流状态(流场)的复杂性有关。例如,黑潮的弯曲与其分支点附近,海洋水文要素的变化特别显著。沿台湾海峡和福建、浙江沿岸方向。自西南向东北或东北北运动,有时逼近长江口的合湾暖流水,影响着东海浅水区(125°E以西)的锋面位置、水温的正梯度型分布,以及东海中层冷水型的成长与消衰等等,其中又以海流对密度/盐度细微结构的增长与消衰的影响最为显著。要比较完整地确定这些影响颇为艰难,尤其对这个海域的海流全貌尚不十分清楚的时候。因为它们经常涉及整个流场及其时-空的变化。目前除了关于海流的动力学及其空间结构与时间変化的研究之外,关于实测流速的统计特性的研究,正在引起人们的重视。后者是从描述统计学的观点进行海流研究,与前者的研究方法迴然不同。关于实测流速统计特性的研究,目前大致可分为两类。一类主要研究实测流速分量和流速值的分布特性。另一类主要研究实测流速值的谱特性。由于实测流速值的谱性质与海洋内波、行星波以及海洋湍流的关系极为密切,后类研究在本世纪七十年代取得了迅速发展。本文试图从描述统计学的观点,就以上两个方面探讨我国东海中部陆架区实测流速的若千统计特性。

Abstract

Starting from the modern descriptive statistics, which means a technigue for collecting, summarizing and analysing data, the authors investigated the statistical characteristics of the measured current velocities in the mid-province of the continental shelf.By statistically analyzing the measured current velocities for a period of 2-15 daynight cycles in summer, the following main results are obtained: (1) the logarithmic current speed distribution curves for the Mid-privince of the continental shelf, as well as for the Deep-sea and Ocean, approximate to a normal distribution; and (2) all of the fluctuation energy of the measured current velocities at all levles in our stations was mainly concentrated within circular frequency (10-3-10-4)see-1.

关键词

实测流速统计学分析东海中部陆架区

Keywords

MEASURED CURRENT VELOCITIESSTATISTICAL RESEARCHTHE MID-PROVINCE OF THE CONTINENTAL SHELF

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