基于夜光遥感的长三角一体化区域经济发展时空特征研究

Research on the temporal and spatial characteristics of the economic development of the Yangtze River Delta based on luminous remote sensing

针对长三角一体化区域进行城市经济发展时空特征研究可促进长三角区域经济协同发展。目前对江浙沪皖三省一市的经济发展研究主要是以经济指数为基础,对于空间信息上的研究较少。近年来,遥感与地理信息系统技术的快速发展,为经济发展特征的地理空间可视化研究提供了技术支撑。夜光遥感影像作为一种特殊的遥感影像,与城市经济发展特征有紧密的联系,其记录的灯光辐射亮度值在解释人类活动现象和社会经济发展方面具有独特的效力,可从空间尺度上对经济信息进行分析。本文以长三角区域为研究区,以NPP-VIIRS夜光遥感数据与吉林一号夜光遥感数据为数据源,对三省一市经济发展的时空特征进行了研究,根据夜光遥感辐射亮度值对长三角的经济发展进行了分析,对长时间序列的夜间灯光像元亮度变化及规律进行探索,为城市空间结构研究提供了新视角。

The study of integrated cities in the Yangtze River Delta is an important research content of the coordinated development of the Yangtze River Delta regional economy.At present,the research on the economic development of Jiangsu,Zhejiang,Shanghai and Anhui provinces is mainly based on economic indexes,and there is little research on spatial information.The advancement and development of remote sensing and geographic information system technology provide the possibility for the study of geospatial visualization of economic development characteristics.As a special remote sensing image,nighttime light data is closely related to the characteristics of urban economic development.The recorded light radiance value has a unique effect in explaining human activity phenomena and socio-economic development,and it can analyze economic information on a spatial scale.In this paper,the Yangtze River Delta region is used as the research area,NPP data and JL-01 data are used as data sources to study the temporal and spatial characteristics of economic development in Yangtze River Delta.Analyze and explore the long-time sequence of night lighting pixel brightness changes and laws,and provide a new perspective for the study of urban spatial structure.