我国海岸带海岛礁遥感研究进展及建议

Remote Sensing Application in China’s Coastal Zones and Islands:Recent Progress and Some Suggestions

为厘清我国海岸带海岛礁遥感近年来发展取得的成就以及存在的问题,本文摘选近十年来若干典型性研究,按照“近海陆域–潮间带–近海水域–海岛礁”的空间顺序进行综述和探讨。总体而言,海岸带的土地覆盖、海岸线等仍是当前遥感应用研究的热点;同时,随着我国经济的快速发展和城镇化出现的环境问题,地面沉降、海水入侵、潮间带生态监测、海水养殖、赤潮、岛礁证据等新兴遥感应用方向也取得大幅进展,有效支撑了国家海洋战略。但同时也发现使用的遥感数据自主性不强、遥感信息更新频率低、学科孤立发展难以满足实际需求等问题。建议加强国产多源数据协同、多学科交叉以及大数据云平台支持下的大范围与局部高精度自动化、常态化监测等。

To summarize the recent achievements and problems of remote sensing application in China’s coastal zones and islands,this study reviews a quantity of typical studies selected from the last decade in a space order of“offshore land area–intertidal zone–offshore waters–island”.Classical remote sensing in land cover change and coastline dynamics is still the research hotspots.With China’s rapid economic development and urbanization,coastal environmental problems become serious.Remote sensing is increasingly applied into research on land subsidence,seawater intrusion,intertidal ecosystem monitoring,mariculture,red tide,and island reef sovereign evidence,which strongly supports China’s ocean strategies.However,the acquirement of remote sensing data still depends largely on foreign satellites;the update frequency of the remote sensing data is low;and different disciplines in this field are often isolated.We propose to promote fusion of multisource data and different disciplines,and ultimately realize high-precision,automatic,and regular monitoring supported by cloud computing at both national and regional levels.