In this article, the Defence Meteorological Satellite Program Operational Linescan System DMSP-OLS night-time light remotely sensed data on a small scale is proposed to evaluate port economic comprehensive scores PECS for the ports of the major cities, including Shanghai, Nanjing, Wuhan, and Chongqing, in the Yangtze River Valley, China. First, the concept and calculation method of port night-time light intensity PNLI are proposed. Second, an estimation method of PECS is proposed using factor analysis. Third, two regression models i.e. first-and second-order polynomials between PNLI and PECS a...
