全球地表覆盖水体提取及检验方法探讨

The Water Extraction and Its Test Method of All the Global Land Cover

土地利用/覆盖变化作为全球环境变化研究的核心内容之一,在可持续发展中占有重要的地位。而遥感数据以其快速、准确、及时、周期性短等优点在大中尺度的土地利用、覆盖变化研究中占明显的优势,已成为当前开展土地利用\覆盖变化研究的最新趋势。研究探讨地表分类的自动分类办法可以大大的提高自动提取速度,提高工作速度,因此分析比较各种提取办法十分必要。

As one of the core contents of the global environmental change research,land utilization(covering variations)plays an important role during sustainable development.With its advantages,such as fastness,accurate,timely,short period,Remote Sensing Data plays an essential part in the research of medium and large scale land utilization(covering variations).Nowadays,such research is leading the latest trend in land utilization(covering variations).It is necessary to compare and analyze various extraction approaches because the study on automatic classification of the surface classification can improve the speed of automatic extraction and working efficiency greatly.