气候变化领域集成服务门户(CCPortal): Tide-Induced Periodic Sea Surface Temperature Drops in the Coral Reef Area of Nanwan Bay, Southern Taiwan

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DOI	10.1029/2019JC015226
	Tide-Induced Periodic Sea Surface Temperature Drops in the Coral Reef Area of Nanwan Bay, Southern Taiwan
	Hsu P.-C.; Lee H.-J.; Zheng Q.; Lai J.-W.; Su F.-C.; Ho C.-R.
发表日期	2020
ISSN	21699275
卷号	125 期号:4
英文摘要	Tidal current-induced cyclonic eddies cause cold-water upwelling and periodic sea surface temperature (SST) drops around the coral reef area in Nanwan Bay, which is located at the southern tip of Taiwan. This study used Himawari-8 satellite data and tide gauge and coastal ocean dynamics application radar (CODAR) data to analyze the characteristics of the SST drops and cyclonic eddy propagation and used an oceanic general circulation model (OGCM) to simulate the tidal current flowing process. According to the CODAR data analysis, the mixed primary semidiurnal tide had an average current velocity of 0.3–0.4 m s−1 throughout the bay, and the average life cycle of a cyclonic eddy is 6.6 hr, with a propagation speed of 0.35 m s−1. The SST drop during the spring tide period was greater than that during the neap tide period, and the SST dropped in both summer and winter. The average daily SST drop in the summer reached 2 °C with a maximum observed value of 4.7 °C, and the SST drop rate was 0.3–0.5 °C hr−1. The annual mean chlorophyll-a concentration was 0.25 mg m−3. This study explored the special properties of the Nanwan Bay coral reef area from the perspective of ocean physics to allow ecologists to facilitate the implementation of long-term conservation and monitoring programs. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	CODAR; coral reef; cyclonic eddy; satellite oceanography; sea surface temperature; tide
语种	英语
来源期刊	Journal of Geophysical Research: Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186934
作者单位	Department of Marine Environmental Informatics, National Taiwan Ocean University, Keelung, Taiwan; Department of Atmospheric and Oceanic Science, University of Maryland, College Park, MD, United States; Taiwan Ocean Research Institute, National Applied Research Laboratories, Kaohsiung, Taiwan; Exhibition and Education Division, National Museum of Marine Science and Technology, Keelung, Taiwan
推荐引用方式 GB/T 7714	Hsu P.-C.,Lee H.-J.,Zheng Q.,et al. Tide-Induced Periodic Sea Surface Temperature Drops in the Coral Reef Area of Nanwan Bay, Southern Taiwan[J],2020,125(4).
APA	Hsu P.-C.,Lee H.-J.,Zheng Q.,Lai J.-W.,Su F.-C.,&Ho C.-R..(2020).Tide-Induced Periodic Sea Surface Temperature Drops in the Coral Reef Area of Nanwan Bay, Southern Taiwan.Journal of Geophysical Research: Oceans,125(4).
MLA	Hsu P.-C.,et al."Tide-Induced Periodic Sea Surface Temperature Drops in the Coral Reef Area of Nanwan Bay, Southern Taiwan".Journal of Geophysical Research: Oceans 125.4(2020).