Seasonal Land Cover Dynamics in Beijing Derived from Landsat 8 Data Using a Spatio-Temporal Contextual Approach

	Seasonal Land Cover Dynamics in Beijing Derived from Landsat 8 Data Using a Spatio-Temporal Contextual Approach
	Wang, Jie 1; Li, Congcong 1; Hu, Luanyun 1; Zhao, Yuanyuan 1; Huang, Huabing 1; Gong, Peng 1
刊名	REMOTE SENSING
	2015
卷号	7 期号:1 页码:140-144
关键词	land cover random forest Markov random field image sequence entropy
通讯作者	Gong, P (reprint author), Chinese Acad Sci, Inst Remote Sensing & Digital Earth, State Key Lab Remote Sensing Sci, Beijing 100101, Peoples R China.
英文摘要	Seasonal dynamic land cover maps could provide useful information to ecosystem, water-resource and climate modelers. However, they are rarely mapped more frequent than annually. Here, we propose an approach to map dynamic land cover types with frequently available satellite data. Landsat 8 data acquired from nine dates over Beijing within a one-year period were used to map seasonal land cover dynamics. A two-step procedure was performed for training sample collection to get better results. Sample sets were interpreted for each acquisition date of Landsat 8 image. We used the random forest classifier to realize the mapping. Nine sets of experiments were designed to incorporate different input features and use of spatial temporal information into the dynamic land cover classification. Land cover maps obtained with single-date data in the optical spectral region were used as benchmarks. Texture, NDVI and thermal infrared bands were added as new features for improvements. A Markov random field (MRF) model was applied to maintain the spatio-temporal consistency. Classifications with all features from all images were performed, and an MRF model was also applied to the results estimated with all features. The best overall accuracies achieved for each date ranged from 75.31% to 85.61%.
研究领域[WOS]	Remote Sensing
收录类别	SCI
语种	英语
WOS记录号	WOS:000348401900042
内容类型	期刊论文
源URL	[http://ir.ceode.ac.cn/handle/183411/38333]
专题	遥感与数字地球研究所_SCI/EI期刊论文_期刊论文
作者单位	1.[Wang, Jie 2.Huang, Huabing 3.Gong, Peng] Chinese Acad Sci, Inst Remote Sensing & Digital Earth, State Key Lab Remote Sensing Sci, Beijing 100101, Peoples R China 4.[Li, Congcong 5.Hu, Luanyun 6.Zhao, Yuanyuan 7.Gong, Peng] Tsinghua Univ, Ctr Earth Syst Sci, Minist Educ, Key Lab Earth Syst Modeling, Beijing 100084, Peoples R China 8.[Gong, Peng] Joint Ctr Global Change Studies, Beijing 100875, Peoples R China
推荐引用方式 GB/T 7714	Wang, Jie,Li, Congcong,Hu, Luanyun,et al. Seasonal Land Cover Dynamics in Beijing Derived from Landsat 8 Data Using a Spatio-Temporal Contextual Approach[J]. REMOTE SENSING,2015,7(1):140-144.
APA	Wang, Jie,Li, Congcong,Hu, Luanyun,Zhao, Yuanyuan,Huang, Huabing,&Gong, Peng.(2015).Seasonal Land Cover Dynamics in Beijing Derived from Landsat 8 Data Using a Spatio-Temporal Contextual Approach.REMOTE SENSING,7(1),140-144.
MLA	Wang, Jie,et al."Seasonal Land Cover Dynamics in Beijing Derived from Landsat 8 Data Using a Spatio-Temporal Contextual Approach".REMOTE SENSING 7.1(2015):140-144.