摘要:
受全球气候变暖的影响,珊瑚礁白化现象越来越严重,全球约1/3的珊瑚处于灭绝边缘.海水温度异常是影响珊瑚礁白化以至于死亡的重要原因.美国国家海洋和大气管理局(National Oceanic and Atmospheric Administra-tion,NOAA)基于海表温度(sea surface temperature,SST)开发了珊瑚礁白化监测产品,目前已有50 km和5 km这2种空间分辨率的产品,用以估算全球珊瑚礁白化程度并进行白化预警.在回顾珊瑚礁白化研究现状的基础上,介绍了NOAA发布的珊瑚礁白化监测数据产品及算法,并基于5 km空间分辨率的数据产品对我国南海区域进行珊瑚礁白化监测的实例研究分析,发现2015年6月份南海部分区域可能已发生珊瑚礁白化,强调开展适合我国珊瑚礁白化预警方法研究的必要性和迫切性,并为相关研究提供了技术参考.
Abstract:
Influenced by the global warming,coral reef bleaching phenomenon is more and more serious and approximately 1/3 of the world's coral is facing possible extinction. Sea water temperature anomaly is one of the most important causes of coral reef bleaching and mortality. NOAA has developed thermal stress satellite products for coral reef bleaching monitoring based on sea surface temperature(SST),including 50 km and 5 km spatial resolution. This paper presents the research status of coral reef bleaching,and introduces the methods and algorithms that NOAA has developed for monitoring coral reef bleaching. There is also a case study of coral reef bleaching monitoring in South China Sea based on NOAA's coral reef bleaching monitoring products. It is shown that it is very probable that coral reef bleaching already occurred in the study area in June 2015. This paper expounds the necessity and urgency of exploring the related research on coral bleaching warning methods in China through research review and case study,and provides relevant research and technical reference.
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