10m datasets of remote sensing monitoring in Hainan Island inland water ecology from 2019 to 2021 (FUI、transparency、trophic status)

As an important resource, inland water is of great significance to human production and life. As a typical island independent water system, Hainan Province is generally rich in surface inland water resources and abundant in river runoff. However, due to the influence of dry and wet monsoon and terrain, it has the characteristics of uneven spatial and temporal distribution. At present, there are relatively few studies on the quality of inland water in Hainan Island. This product is based on the surface reflectance data of sentinel 2 on GEE cloud computing platform, combined with the measured data set, and uses three models of Fui, qaav6 and Fui based nutrient status to respectively retrieve the Fui, transparency and nutrient status of the inland water body of Hainan Island in the dry and wet seasons from 2019 to 2021. This data set can provide important scientific basis for the inland water quality monitoring, water pollution control and water ecological protection of Hainan Island.

内陆水体作为重要自然资源，对人类生产生活具有关键意义。海南省作为典型的岛屿型独立水系单元，地表内陆水资源总量丰富，河川径流量充沛。但受干湿季风与地形因素影响，其水资源时空分布不均。当前针对海南岛内陆水体水质的研究相对较少。本数据集基于谷歌地球引擎（Google Earth Engine，GEE）云平台上的哨兵2号（Sentinel 2）地表反射率数据，结合实测数据集，采用FUI、QAAv6以及基于FUI的营养状态模型三种方法，分别反演了2019-2021年海南岛内陆水体在干湿季的FUI、透明度与营养状态。本数据集可为海南岛内陆水体水质监测、水污染防治及水生态保护提供重要科学依据。