地理国情监测在城市化发展中的应用研究——以汕头市为例

Application Research on Monitoring for National Geographical Condition in Urbanization Development:A Case Study of Shantou

开展地理国情监测工作的目的是为了获取自然与人类社会经济活动引起的地表变化信息,为政府、企业和公众提供地理国情信息服务。城市化发展、变迁是地理国情监测的重要应用方面之一,本文以广东省汕头市为例,基于遥感技术(RS),利用多时相影像数据提取不同时期建成区变化信息,并有针对性地对比分析,直观反映了汕头市三十多年的城市化发展的特点和进展情况。

The development of work on monitoring for national geographical condition is for the purpose of acquiring land surface changes caused by natural and human social economic activities and providing services for the government , enterprises and the public about information of national geographical condition .The urbanization development/urban change is one of the most important applications of monitoring for national geographical condition .Taking Shantou city in Guangdong province as an example and based on remote sensing technology , change information of built -up area in different period is extracted using multi -temporal image data and thus comparable analysis is conducted .The results reflect the visual information of the characteristics and progress of the urbanization development in Shantou over the last thirty years .