Hesong DONG, Renjie LI, Jianming LI, Shuai LI. Study on Urban Spatiotemporal Expansion Pattern of Three First-class Urban Agglomerations in China Derived from Integrated DMSP-OLS and NPP-VIIRS Nighttime Light Data [J]. Journal of Geo-information Science, 2020, 22(5): 1161
- Journal of Geo-information Science
- Vol. 22, Issue 5, 1161 (2020)
Fig. 1. The power function relation between DMSP-OLS and average DN values in corresponding region of NPP-VIIRS for 2012, 2013
Fig. 2. Spatial pattern of DMSP-OLS and NPP-VIIRS simulated data for part of the Beijing-Tianjin-Hebei, part of the Yangtze River Delta, part of the Pearl River Delta in 2012, 2013
Fig. 3. Corrected and simulated nighttime light images in three first-class urban agglomerations from 1992 to 2017
Fig. 4. Urban built-up area extraction results in three first-class urban agglomerations from 1992 to 2017
Fig. 5. Changes in urban spatial expansion scale of three first-class urban agglomerations from 1992 to 2017
Fig. 6. Changes in urban spatial expansion intensity of three first-class urban agglomerations from 1992 to 2017
Fig. 7. Gravity center shift of urban spatial expansion in three first-class urban agglomerations from 1992 to 2017
Fig. 8. Hotspot analysis of urban spatial expansion in three first-class urban agglomerations from 1992 to 2017
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Table 1. Regression model coefficients for images mutual correction based on sensors
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Table 2. Correlation analysis between DMSP-OLS and NPP-VIIRS
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Table 3. Urban scale and extraction error from integrated nighttime light data (km2,km2,%,km2,%)
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