Journal of Geo-information Science, Volume. 22, Issue 2, 246(2020)
Figures & Tables(13)
Fig. 1. Comparison of scatter distribution of DNs between SNL images and reference images in 2006
Fig. 2. Sum of the DNs of bright pixels with DN value ≤55 in SNL images obtained from different satellites
Fig. 3. Relationship (and coefficients) of unsaturated pixel DNs between NSL images
Fig. 4. NDLI values of the stable nighttime light image of the same year obtained by different satellites before and after the classified correction
Fig. 5. Sum of bright pixel values obtained from different satellites after correction by different methods
Fig. 6. Comparison of different types of NTL images for some Chinese urban agglomerations in 2006
Fig. 7. Latitudinal transects of different types of NTL index for Jing-Jin-Tang urban agglomerations in 2006
Fig. 8. Correlation of GDP and electricity consumption with 4 types of NTL images for Chinese cities from 1999 to 2013
Table 1. Chinese cities with the index correlation coefficient between the total DN value of unsaturated pixels in the SNL images and years over 0.9
View tableView in ArticleTable 1. Chinese cities with the index correlation coefficient between the total DN value of unsaturated pixels in the SNL images and years over 0.9
城市 R 2城市 R 2城市 R 2城市 R 2拉萨市 0.9673 德宏州 0.9347 宁波市 0.9185 台州市 0.9103 延安市 0.9580 黄山市 0.9335 迪庆州 0.9178 梧州市 0.9091 克孜州 0.9541 甘南州 0.9309 威海市 0.9176 苏州市 0.9089 凉山州 0.9538 临沧市 0.9300 绍兴市 0.9171 普洱市 0.9088 怒江州 0.9503 遂宁市 0.9298 重庆市 0.9169 贺州市 0.9080 舟山市 0.9469 海南州 0.9280 银川市 0.9162 南充市 0.9078 金华市 0.9434 杭州市 0.9279 资阳市 0.9157 抚州市 0.9071 长沙市 0.9422 和田地区 0.9271 固原市 0.9147 上饶市 0.9068 喀什地区 0.9422 保山市 0.9261 中卫市 0.9141 西双版纳州 0.9068 成都市 0.9392 博尔塔拉州 0.9246 铜仁地区 0.9124 赣州市 0.9060 文山州 0.9385 昌都地区 0.9242 惠州市 0.9119 嘉兴市 0.9043 石河子市 0.9371 丽水市 0.9220 嘉峪关市 0.9113 河源市 0.9017 西宁市 0.9349 锡林郭勒盟 0.9194 永州市 0.9111 桂林市 0.9016 甘孜州 0.9348 丽江市 0.9190 厦门市 0.9109 酒泉市 0.9010
Table 2. Representative reference images for raw SNL images
View tableView in ArticleTable 2. Representative reference images for raw SNL images
辐射校准的 灯光影像 混合的稳定 灯光影像 待校正稳定 灯光影像 F12_1996 F12_1997 F10_1992-1994, F12_1994-1999 F12_1999 F14_1999 F14_1997-2003 F12-F15_2000 F15_2000 F15_2000-2007 a F14-F15_2003 F15_2003 F14_2004 F15_2004 F16_2006 F16_2006 F16_2004-2009 F16_2010 F18_2010 F18_2010-2013 b F16_2010-2011 F18_2010
Table 3. Calibration model coefficients for saturated pixels of each stable nighttime light image
View tableView in ArticleTable 3. Calibration model coefficients for saturated pixels of each stable nighttime light image
稳定灯光影像 d e R 2稳定灯光影像 d e R 2F101992 1.6058 0.7209 0.8261 F152001 1.7151 0.6638 0.8790 F101993 1.4223 0.7706 0.8892 F152002 1.6428 0.7099 0.8848 F101994 1.2326 0.8284 0.8861 F152003 0.9146 0.8068 0.9204 F121994 1.5814 0.8405 0.8629 F152004 0.8386 0.8766 0.9392 F121995 1.3788 0.8840 0.9129 F152005 0.9129 0.8569 0.9092 F121996 1.2844 0.8915 0.9372 F152006 0.9378 0.8610 0.9028 F121997 1.2981 0.9312 0.9462 F152007 1.1294 0.8048 0.8898 F121998 1.4016 0.9209 0.9180 F162004 1.2520 0.8496 0.9036 F121999 1.3058 0.9414 0.8496 F162005 1.1273 0.8424 0.9204 F141997 1.2187 0.7903 0.8974 F162006 1.2374 0.8664 0.9290 F141998 1.2622 0.7917 0.9084 F162007 1.3602 0.8881 0.9109 F141999 1.0184 0.8740 0.9254 F162008 1.3228 0.8969 0.8708 F142000 1.1412 0.8477 0.9055 F162009 1.8805 0.7539 0.8342 F142001 1.3947 0.8358 0.8642 F182010 1.9359 0.8480 0.8960 F142002 1.1143 0.9249 0.8493 F182011 1.3247 0.9173 0.8207 F142003 1.1901 0.9357 0.8088 F182012 1.9522 0.8100 0.8483 F152000 1.7378 0.6493 0.8707 F182013 1.8153 0.8430 0.7392
Table 4. Coefficients adopted for intercalibration of RC NTL dataset
View tableView in ArticleTable 4. Coefficients adopted for intercalibration of RC NTL dataset
辐射校准的灯光影像 C 0C 1R 2F12_1996 4.336 0.915 0.971 F12_1999 1.423 0.780 0.980 F12-F15_2000 3.658 0.710 0.980 F14-F15_2002 3.736 0.797 0.980 F14_2004 1.062 0.761 0.984 F16_2006 0.000 1.000 1.000 F16_2010 2.196 1.195 0.981 F16_2010-2011 -1.987 1.246 0.981
Table 5. Coefficients adopted for intercalibration of unsaturated pixels in discontinuous images
View tableView in ArticleTable 5. Coefficients adopted for intercalibration of unsaturated pixels in discontinuous images
不连续稳定 灯光影像 a b c R 2F101994 0.000 10 0.9158 0.7429 0.9456 F121996 -0.002 40 1.1846 -0.6158 0.9481 F121999 -0.000 10 0.8944 0.8090 0.9299 F141998 -0.000 60 0.9030 0.5025 0.9026 F162005 -0.003 50 1.1887 0.0175 0.9198 F162006 -0.005 20 1.3614 -1.1588 0.9671 F162008 -0.000 08 0.9654 0.3562 0.9698 F162009 -0.006 60 1.3758 -1.7220 0.8883 F182010 -0.000 09 0.9353 -0.4345 0.8884 F182013 -0.006 40 1.1823 -0.0691 0.8417
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Ziyang CAO, Zhifeng WU, Sujuan MI, Ke YANG.
Paper Information
Received: May. 24, 2019
Accepted: --
Published Online: Sep. 16, 2020
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