Analysis of Water Quality Characteristics of the Incheon Coastal Area by the Inflow of Stream Water

Crisis and Emergency Management Pub Date : 2021-02-28 DOI:10.14251/CRISISONOMY.2021.17.2.53

Jiho Jang, D. Jang

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Abstract

This study aims to investigate the effects of the influent rivers into the coastal waters of Incheon on the water quality of the sea area by analyzing the survey results of the national marine environment measurement network for the sea areas, Incheon 7, Incheon 6, and Incheon 17. Using the data from the summer (August) and winter seasons (February) from 2015 to 2019, the effects of the influent rivers were compared and analyzed by season and distance from the land, and the degree of influence was quantitatively expressed by correlation analysis and principal component analysis. As a result of the analysis by season, 61.2% of the total water quality characteristics of Incheon 7 were influenced by the influent rivers in summer, and 20% in winter, indicating a greater influence of the influent rivers in the summer. As a result of the analysis by distance from the land, 61.2% of the water quality characteristics were affected in Incheon 7 (summer), 46.45% in Incheon 6 (summer), and 9.65% in Incheon 17 (summer), indicating that the effect of influent rivers decreased as the distance from the land increased.

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川水流入对仁川沿海地区水质特征的分析

本研究以仁川7号、仁川6号、仁川17号国家海洋环境测量网的调查结果为基础，探讨了流入仁川沿海水域的河流对该海域水质的影响。利用2015 - 2019年夏季(8月)和冬季(2月)的数据，通过季节和距离陆地的距离对入流河流的影响进行对比分析，并通过相关分析和主成分分析定量表达影响程度。从季节分析结果来看，仁川7号的总水质特征中，夏季受进水河流影响的比例为61.2%，冬季为20%，说明夏季受进水河流影响较大。从距离陆地的角度分析，仁川7号(夏季)、仁川6号(夏季)和仁川17号(夏季)的水质特征受影响的比例分别为61.2%、46.45%和9.65%，表明入流河流的影响随距离陆地的增加而减小。

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Crisis and Emergency Management

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