Impacts of consecutive typhoons (Maysak and Haishen in 2020) on the benthic processes of a mega-tidal flat in highly developed area

IF 4.9 3区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Marine pollution bulletin Pub Date : 2025-05-17 DOI:10.1016/j.marpolbul.2025.118141

Seong Woon Jeong , Hun Jun Ha , Hosang Kim , Beomgi Kim , Jong Seong Khim , Ho Kyung Ha

{"title":"Impacts of consecutive typhoons (Maysak and Haishen in 2020) on the benthic processes of a mega-tidal flat in highly developed area","authors":"Seong Woon Jeong , Hun Jun Ha , Hosang Kim , Beomgi Kim , Jong Seong Khim , Ho Kyung Ha","doi":"10.1016/j.marpolbul.2025.118141","DOIUrl":null,"url":null,"abstract":"<div><div>The relationship between sediment transport and the chlorophyll-<em>a</em> (Chl-<em>a</em>) distribution was investigated in a mega-tidal flat during two consecutive typhoons, Maysak and Haishen in 2020. In-situ measurements of the current velocity, suspended sediment concentration (SSC), and Chl-<em>a</em> were conducted at the upper (M1) and lower (M2) parts of the tidal flat in Muui Island from September 1 to 23, 2020. The current velocity and SSC (M1: 614 mg L<sup>−1</sup>; M2: 434 mg L<sup>−1</sup>) increased one day after the peak wind stress due to the tidal direction around Muui Island. At M1, the SSC increase was attributed to sediment resuspension, whereas it was likely driven by sediment advection at M2. Low Chl-<em>a</em> level during the typhoons was caused by reduced solar radiation and continuous high SSC. After the typhoons, the Chl-<em>a</em> concentrations increased, suggesting that typhoon-induced offshore vertical mixing eventually influenced the nearshore tidal flat, developing favorable conditions for Chl-<em>a</em> blooms.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"218 ","pages":"Article 118141"},"PeriodicalIF":4.9000,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Marine pollution bulletin","FirstCategoryId":"93","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0025326X25006162","RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}

引用次数: 0

Abstract

The relationship between sediment transport and the chlorophyll-a (Chl-a) distribution was investigated in a mega-tidal flat during two consecutive typhoons, Maysak and Haishen in 2020. In-situ measurements of the current velocity, suspended sediment concentration (SSC), and Chl-a were conducted at the upper (M1) and lower (M2) parts of the tidal flat in Muui Island from September 1 to 23, 2020. The current velocity and SSC (M1: 614 mg L⁻¹; M2: 434 mg L⁻¹) increased one day after the peak wind stress due to the tidal direction around Muui Island. At M1, the SSC increase was attributed to sediment resuspension, whereas it was likely driven by sediment advection at M2. Low Chl-a level during the typhoons was caused by reduced solar radiation and continuous high SSC. After the typhoons, the Chl-a concentrations increased, suggesting that typhoon-induced offshore vertical mixing eventually influenced the nearshore tidal flat, developing favorable conditions for Chl-a blooms.

Abstract Image

查看原文本刊更多论文

连续台风（2020年“梅萨克”和“海神”）对高度发达地区特大潮滩底栖生物过程的影响

研究了2020年连续两次台风“梅萨克”和“海神”对特大潮滩沉积物输运与叶绿素a分布的影响。2020年9月1日至23日，在茂伊岛滩涂上部（M1）和下部（M2）进行了海流流速、悬浮泥沙浓度（SSC）和Chl-a的原位测量。流速和SSC (M1: 614 mg L−1；M2: 434 mg L−1)在Muui岛附近受潮汐方向影响，风应力峰值后1 d增大。在M1处，SSC的增加归因于沉积物再悬浮，而在M2处，SSC的增加可能是由沉积物平流驱动的。台风期间低Chl-a水平是由太阳辐射减少和持续高SSC引起的。台风过后，Chl-a浓度增加，表明台风引起的近海垂直混合最终影响了近岸潮滩，为Chl-a华形成有利条件。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Marine pollution bulletin 环境科学-海洋与淡水生物学

CiteScore

10.20

自引率

15.50%

发文量

1077

审稿时长

68 days

期刊介绍： Marine Pollution Bulletin is concerned with the rational use of maritime and marine resources in estuaries, the seas and oceans, as well as with documenting marine pollution and introducing new forms of measurement and analysis. A wide range of topics are discussed as news, comment, reviews and research reports, not only on effluent disposal and pollution control, but also on the management, economic aspects and protection of the marine environment in general.