地球信息科学学报 ›› 2015, Vol. 17 ›› Issue (9): 1092-1102.doi: 10.3724/SP.J.1047.2015.01092
曹子阳1,2(), 吴志峰3,*(
), 匡耀求1, 黄宁生1
收稿日期:
2014-12-08
修回日期:
2015-01-04
出版日期:
2015-09-10
发布日期:
2015-09-07
通讯作者:
吴志峰
E-mail:eationcao@163.com;gzuwzf@163.com
作者简介:
作者简介:曹子阳(1988-),男,博士生,研究方向为区域可持续发展与城市遥感。E-mail:
基金资助:
CAO Ziyang1,2(), WU Zhifeng3,*(
), KUANG Yaoqiu1, HUANG Ningsheng1
Received:
2014-12-08
Revised:
2015-01-04
Online:
2015-09-10
Published:
2015-09-07
Contact:
WU Zhifeng
E-mail:eationcao@163.com;gzuwzf@163.com
About author:
*The author: SHEN Jingwei, E-mail:
摘要:
美国国防气象卫星搭载的业务型线扫描传感器(DMSP/OLS)获取的夜间灯光影像,可客观地反映人类开发建设活动强度,其广泛应用于城市遥感的多个领域。但该数据缺少星上的辐射校正,下载的原始影像数据集不能直接用于研究,需进行区域校正。长时间序列的DMSP/OLS夜间灯光影像数据集主要存在2个问题需在校正过程中解决:(1)原始影像数据集中的影像是非连续性的;(2)数据集中的每一期影像都存在着像元DN值饱和的现象。针对这2个问题,本文提出了一种不变目标区域法的影像校正方法,对提取出来的每一期中国区域的夜间灯光影像进行了校正,该校正方法包括相互校正、饱和校正和影像间的连续性校正。最后,为了检验校正方法的合理性与可靠性,本文将校正前后中国夜间灯光影像与GDP和电力消耗值,分别进行回归分析评价表明,校正后的影像更客观合理地反映区域经济发展的差异。
曹子阳, 吴志峰, 匡耀求, 黄宁生. DMSP/OLS夜间灯光影像中国区域的校正及应用[J]. 地球信息科学学报, 2015, 17(9): 1092-1102.DOI:10.3724/SP.J.1047.2015.01092
CAO Ziyang,WU Zhifeng,KUANG Yaoqiu,HUANG Ningsheng. Correction of DMSP/OLS Night-time Light Images and Its Application in China[J]. Journal of Geo-information Science, 2015, 17(9): 1092-1102.DOI:10.3724/SP.J.1047.2015.01092
表1
每一期影像的相互校正模型参数"
卫星序号 | 年份 | a | b | R2 |
---|---|---|---|---|
F10 | 1992 | 0.6044 | 1.3244 | 0.8662 |
1993 | 0.7039 | 1.3265 | 0.9112 | |
1994 | 0.7654 | 1.2925 | 0.9265 | |
F12 | 1994 | 0.6443 | 1.3133 | 0.9156 |
1995 | 0.8080 | 1.2227 | 0.9179 | |
1996 | 1.0288 | 1.1393 | 0.8972 | |
1997 | 0.7561 | 1.2646 | 0.8878 | |
1998 | 0.6846 | 1.2333 | 0.8880 | |
1999 | 0.7741 | 1.2315 | 0.8645 | |
F14 | 1997 | 1.3708 | 1.1824 | 0.8579 |
1998 | 0.9664 | 1.2229 | 0.8663 | |
1999 | 1.0912 | 1.2263 | 0.9098 | |
2000 | 0.9913 | 1.1753 | 0.9308 | |
2001 | 0.8686 | 1.2266 | 0.9351 | |
2002 | 0.9894 | 1.1583 | 0.9153 | |
2003 | 0.9003 | 1.2019 | 0.9290 | |
F15 | 2000 | 0.8093 | 1.1830 | 0.8592 |
2001 | 0.6655 | 1.2646 | 0.8619 | |
2002 | 0.5923 | 1.2795 | 0.9121 | |
2003 | 1.0439 | 1.1822 | 0.9111 | |
2004 | 1.1450 | 1.0847 | 0.9281 | |
2005 | 1.3548 | 1.0228 | 0.8498 | |
2006 | 1.2481 | 1.0738 | 0.9545 | |
2007 | 1.1421 | 1.1297 | 0.9384 | |
F16 | 2004 | 0.7415 | 1.1576 | 0.9413 |
2005 | 0.9048 | 1.1776 | 0.9485 | |
2006 | 0.8296 | 1.1883 | 0.9647 | |
2007 | 0.7314 | 1.2132 | 0.9369 | |
2008 | 0.7927 | 1.1487 | 0.9186 | |
2009 | 0.6051 | 1.1525 | 0.8923 | |
F18 | 2010 | 0.3427 | 1.2188 | 0.8387 |
2011 | 0.7035 | 1.0872 | 0.8545 | |
2012 | 0.4821 | 1.1866 | 0.8849 |
表2
省级尺度上夜间灯光影像TDN与对应的GDP的线性回归的相关系数"
年份 | 校正前 | 校正后 | |||||
---|---|---|---|---|---|---|---|
F10 | F12 | F14 | F15 | F16 | F18 | ||
1992 | 0.7096 | 0.7303 | |||||
1993 | 0.5953 | 0.6944 | |||||
1994 | 0.5979 | 0.6664 | 0.6546 | ||||
1995 | 0.6781 | 0.6850 | |||||
1996 | 0.6903 | 0.7272 | |||||
1997 | 0.7129 | 0.7201 | 0.7363 | ||||
1998 | 0.7208 | 0.7265 | 0.7388 | ||||
1999 | 0.7545 | 0.7641 | 0.7504 | ||||
2000 | 0.7100 | 0.7469 | 0.7595 | ||||
2001 | 0.7372 | 0.7373 | 0.7648 | ||||
2002 | 0.8086 | 0.7806 | 0.7898 | ||||
2003 | 0.8383 | 0.8482 | 0.8204 | ||||
2004 | 0.8338 | 0.7822 | 0.8238 | ||||
2005 | 0.7877 | 0.7636 | 0.8399 | ||||
2006 | 0.8110 | 0.7869 | 0.8446 | ||||
2007 | 0.8170 | 0.7908 | 0.8453 | ||||
2008 | 0.7784 | 0.8480 | |||||
2009 | 0.6904 | 0.8309 | |||||
2010 | 0.6964 | 0.8234 | |||||
2011 | 0.7755 | 0.8160 | |||||
2012 | 0.7293 | 0.7911 |
表3
市级尺度上夜间灯光影像单位面积的TDN与对应的单位的面积GDP的线性回归的相关系数"
年份 | 校正前 | 校正后 | |||||
---|---|---|---|---|---|---|---|
F10 | F12 | F14 | F15 | F16 | F18 | ||
1992 | 0.6588 | 0.7094 | |||||
1993 | 0.6521 | 0.7069 | |||||
1994 | 0.6577 | 0.6572 | 0.7046 | ||||
1995 | 0.6337 | 0.6813 | |||||
1996 | 0.6266 | 0.6685 | |||||
1997 | 0.6114 | 0.6543 | 0.6526 | ||||
1998 | 0.6180 | 0.6632 | 0.6066 | ||||
1999 | 0.5717 | 0.6081 | 0.5955 | ||||
2000 | 0.6137 | 0.5877 | 0.6061 | ||||
2001 | 0.5429 | 0.5396 | 0.5613 | ||||
2002 | 0.4540 | 0.4235 | 0.4863 | ||||
2003 | 0.4452 | 0.4683 | 0.4799 | ||||
2004 | 0.4354 | 0.4076 | 0.4757 | ||||
2005 | 0.3766 | 0.3729 | 0.4299 | ||||
2006 | 0.3590 | 0.3393 | 0.4103 | ||||
2007 | 0.3406 | 0.3130 | 0.3914 | ||||
2008 | 0.3081 | 0.3866 | |||||
2009 | 0.3147 | 0.3875 | |||||
2010 | 0.2657 | 0.3877 | |||||
2011 | 0.2742 | 0.3846 | |||||
2012 | 0.2732 | 0.3955 |
表4
省级尺度上夜间灯光影像TDN与对应电力消耗值的线性回归的相关系数"
年份 | 校正前 | 校正后 | |||||
---|---|---|---|---|---|---|---|
F10 | F12 | F14 | F15 | F16 | F18 | ||
1992 | - | - | |||||
1993 | - | - | |||||
1994 | - | - | - | ||||
1995 | 0.7578 | 0.7476 | |||||
1996 | - | - | |||||
1997 | - | - | - | ||||
1998 | - | - | - | ||||
1999 | 0.7858 | 0.8171 | 0.8207 | ||||
2000 | 0.7823 | 0.8135 | 0.8549 | ||||
2001 | 0.8231 | 0.8217 | 0.8648 | ||||
2002 | 0.8447 | 0.8323 | 0.8754 | ||||
2003 | 0.8608 | 0.8767 | 0.8791 | ||||
2004 | 0.8681 | 0.8030 | 0.8834 | ||||
2005 | 0.8272 | 0.8009 | 0.8819 | ||||
2006 | 0.8512 | 0.8402 | 0.8911 | ||||
2007 | 0.8577 | 0.8505 | 0.8985 | ||||
2008 | 0.8427 | 0.8980 | |||||
2009 | 0.7458 | 0.8902 | |||||
2010 | 0.7561 | 0.8789 | |||||
2011 | 0.8424 | 0.8759 | |||||
2012 | 0.8279 | 0.8704 |
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