Extraction of built-up areas using combination of Landsat and DMSP data——a case study of Jiangxi Province
Extraction of built-up areas using combination of Landsat and DMSP data——a case study of Jiangxi Province
1.State Key Laboratory of Information Engineering in Surveying， Mapping and Remote Sensing， Wuhan University， Wuhan 430079， China；2.School of Remote Sensing and Information Engineering， Wuhan University， Wuhan 430079， China
Abstract：Built-up area reflects the development of modern cities， and its change is an important parameter of spatial distribution and economy. In this study， we proposed a monitor method for extracting built-up area in Jiangxi province with combination of multi-temporal Landsat images and DMSP/OLS (Defense Meteorological Satellites Program/Operational Linescan System) data. The spatial accuracy of the extraction result achieved 89.7%. The dynamics showed that the built-up area had increased 1 276.33 km2 from 1995 to 2014， and the expansion rate reached 423.99%. The relationship between urban expansion and economic growth was also explored and it concluded that the area of built-up area expansion was highly correlated with the increase of economy (R2＝0.62). Furthermore， after the establishment of Poyang Lake Eco-Economic Zone， there's a significant increase in economy and urban expansion of cities within the zone.
王若曦,李 建,李 熙,陈晓玲. DMSP夜间灯光数据与Landsat数据结合的建成区提取研究——以江西省为例[J]. 华中师范大学学报(自然科学版), 2018, 52(1): 130-136.
Extraction of built-up areas using combination of Landsat and DMSP data——a case study of Jiangxi Province. Extraction of built-up areas using combination of Landsat and DMSP data——a case study of Jiangxi Province. journal1, 2018, 52(1): 130-136.
2018, Vol. 52 
