1970–2017年海南岛Landsat系列卫星遥感深加工数据集

Value-added Landsat image data of Hainan Island from 1970 to 2017

自海南省经济特区建立以来,海南岛的自然环境和城市发展均发生了沧海巨变。在新的国家战略形势下,面向海南国际旅游岛建设、海上丝绸之路建设以及东盟战略的重大需求,高质量的长时间序列的卫星遥感数据集对于城市建设、环境保护、农业规划、生态旅游等方面具有重大的参考价值。为了宏观了解海南岛的变迁,掌握40多年来自然资源的变化过程,本数据集选用了1970–2017年间无云或云量较低的Landsat系列卫星遥感数据,通过卫星遥感深加工服务系统,分别制作了1970年、1988年、1998年、2008年、2017年5期覆盖海南全岛的数据产品。卫星数据深加工处理工作主要包括数据选择、投影转换、波段融合和影像镶嵌等流程。本产品云量较少、时间跨度大,可用于海南岛40多年自然资源时空变化科学分析、行业应用监测和政府宏观决策。

Since its establishment as Hainan Special Economic Zone,Hainan Island has achieved great development in urbanization and great changes have taken place in the natural environment.In recent years,many policies have been put forward for the construction of Hainan Island,such like Hainan International Tourism Island Construction,Maritime Silk Road and the ASEAN strategy.In this situation,the long timesequence,high-quality satellite remote sensing data sets provide important reference to Urban Construction,Environmental Protection,Agricultural Planning,and Ecotourism.In order to learn the changes of Hainan Island,in macroscope perspective,and understand the evolution of its natural resources,since the establishment of the special economic zone,this study selected the cloudless or less cloudy Landsat series satellite remote sensing images from 1970 to 2017.Through the deep processing service system,we obtained five images which can cover the entire island of Hainan in 1970,1988,1998,2008 and 2017.And the main jobs included image registration,projection conversion,band fusion and image mosaicking.With less cloud influence,this product has a large time span and can be used for scientifically analyzing the temporal and spatial changes of Hainan Island over the past 40 years,as well as in industrial application monitoring and government macro decision.