Bulletin of Surveying and Mapping ›› 2021, Vol. 0 ›› Issue (10): 20-27.doi: 10.13474/j.cnki.11-2246.2021.300

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A study on space-time coupling relationship between nightlight data and the indicators of social and economic development in the Yellow River Basin

ZHANG Yuansheng1, CAO Zhiwei2, WEI Wei2, HU Jie2   

  1. 1. Tianjin University, Tianjin 300072, China;
    2. Yellow River Engineering Consulting Co., Ltd., Zhengzhou 450003, China
  • Received:2021-06-09 Revised:2021-08-19 Online:2021-10-25 Published:2021-11-13

Abstract: Through the correction and processing of the national nightlight data from 1992 to 2013, this paper obtains the national and watershed nightlight data images, conducts economic spatial aggregation analysis, compares and analyzes the relevant factors. The results show that the areas with high economic spatial aggregation are distributed near the Yellow River channel, from the upper reaches to the lower reaches of the Yellow River, the heat intensity is gradually increasing, and the provincial capital city is the core area, spreading outwards, showing the tendency of the polymerization area to disperse to the surrounding area under the condition that the polymerization of the old polymerization point is intensified. The basin development index BDI has a certain correlation, the overall trend of nightlight data in 9 provinces of the basin is basically consistent with the change trend of the national nightlight data, showing a steady upward trend, but the overall value is lower than the national nightlight data, the high-quality development of the Yellow River Basin is imminent.

Key words: nightlight data, the Yellow River Basin, the spatio-temporal pattern, economy development, GDP

CLC Number: