Impact of tropical cyclone Amang on variability of wind speed, salinity, sea surface temperature, and their relationship to chlorophyll-a in sea waters of Sangihe Island

AQUATIC SCIENCE & MANAGEMENT Pub Date : 2021-10-16 DOI:10.35800/jasm.v9i2.34589

M. Rachim, J. Schaduw, A. S. Wantasen, Wilhelmina Patty, Edwin L. A. Ngangi

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Abstract

High concentrations of chlorophyll-a can be used to predict where fish gather. On the other hand, tropical cyclones are one of the triggering factors for vertical stirring and upwelling that cause fertility of waters. The Sangihe Island area is not an effective area for the formation of tropical cyclones. However, due to its geographical location with a tropical cyclone area and trajectory, the potential for disturbances caused by cyclones is impactful on Sangihe Island. The distribution of wind speed, salinity, sea surface temperature and chlorophyll-a concentration can be detected by satellite remote sensing imagery. This study aims to analyze the impact of Tropical Cyclone Amang on the variability of wind speed, salinity, sea surface temperature and on the concentration of chlorophyll-a in Sangihe Island. This study useswind speed, salinity, sea surface temperature and chlorophyll-a data during the Amang Tropical Cyclone (January 6-27, 2019) from the AQUA-MODIS satellite imagery. The results show that the relationship between wind speed and chlorophyll-a concentration has impact on other parameters where both parameters showed a strong correlation value. It was also showed on the relationship between sea surface temperature and chlorophyll-a.However, the relationship between salinity and chlorophyll-a concentration showed lowest effect among those parameters.Indonesian title: Dampak siklon tropis Amang terhadap variabilitas kecepatan angin, salinitas, suhu permukaan laut, dan hubungannya dengan klorofil-a di perairan laut Pulau Sangihe

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热带气旋“阿芒”对桑吉河岛海域风速、盐度、海温变率的影响及其与叶绿素-a的关系

高浓度的叶绿素-a可以用来预测鱼类聚集的地方。另一方面，热带气旋是引起水体肥力的垂直搅拌和上升流的触发因素之一。三吉河岛地区不是热带气旋形成的有效区域。然而，由于其地理位置与热带气旋区和轨迹，气旋引起的干扰对桑吉河岛的影响是潜在的。利用卫星遥感影像可以探测风速、盐度、海温和叶绿素-a浓度的分布。本研究旨在分析热带气旋“阿芒”对桑吉河岛风速、盐度、海温及叶绿素-a浓度变化的影响。本研究使用了AQUA-MODIS卫星图像中Amang热带气旋(2019年1月6日至27日)期间的风速、盐度、海面温度和叶绿素-a数据。结果表明，风速与叶绿素-a浓度的关系对其他参数也有影响，两者均表现出较强的相关值。对海表温度与叶绿素-a的关系也进行了分析。而盐度与叶绿素-a浓度的关系在这些参数中影响最小。印尼语题目:Dampak silkon tropis Amang terhadap variabilitas keecepatan angin, salinitas, suhu permukaan laut, dan hubungannya dengan klorfila di perairan laut Pulau Sangihe

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AQUATIC SCIENCE & MANAGEMENT

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