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

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 time-sequence, 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.

自海南经济特区成立以来，海南岛在城市化进程中取得了显著成就，自然环境亦发生了翻天覆地的变化。近年来，为推动海南岛建设，出台了一系列政策，诸如海南国际旅游岛建设、海上丝绸之路战略以及东盟战略。在此背景下，长时间序列、高精度的卫星遥感数据集为城市建设、环境保护、农业规划及生态旅游提供了重要的参考依据。为宏观视角下深入了解海南岛的变化及其自然资源演变，自特区设立以来，本研究选取了1970年至2017年间无云或少云的Landsat系列卫星遥感影像。通过深度处理服务系统，我们获得了五幅可覆盖海南岛全境的影像，分别对应1970年、1988年、1998年、2008年和2017年。主要工作包括影像配准、投影转换、波段融合及影像镶嵌。受云量影响较小，该产品具有较长的时间跨度，可用于科学分析过去40年间海南岛的时空变化，并在工业应用监测及政府宏观决策中发挥重要作用。