DOI: 10.1016/j.jag.2014.09.007
Scopus记录号: 2-s2.0-84920956659
论文题名: Behavior-based aggregation of land categories for temporal change analysis
作者: Aldwaik S ; Z ; , Onsted J ; A ; , Pontius R ; G ; , Jr
刊名: International Journal of Applied Earth Observation and Geoinformation
ISSN: 15698432
出版年: 2015
卷: 35, 期: PB 起始页码: 229
结束页码: 238
语种: 英语
英文关键词: Aggregation
; Category
; Change
; Land
; Map
; Transition
Scopus关键词: algorithm
; land use change
; mapping
; temporal analysis
英文摘要: Comparison between two time points of the same categorical variable for the same study extent can revealchanges among categories over time, such as transitions among land categories. If many categories exist, then analysis can be difficult to interpret. Category aggregation is the procedure that combines two ormore categories to create a single broader category. Aggregation can simplify interpretation, and canalso influence the sizes and types of changes. Some classifications have an a priori hierarchy to facilitateaggregation, but an a priori aggregation might make researchers blind to important category dynamics. We created an algorithm to aggregate categories in a sequence of steps based on the categories' behaviorsin terms of gross losses and gross gains. The behavior-based algorithm aggregates net gaining categorieswith net gaining categories and aggregates net losing categories with net losing categories, but neveraggregates a net gaining category with a net losing category. The behavior-based algorithm at each stepin the sequence maintains net change and maximizes swap change. We present a case study where datafrom 2001 and 2006 for 64 land categories indicate change on 17% of the study extent. The behavior-based algorithm produces a set of 10 categories that maintains nearly the original amount of change. Incontrast, an a priori aggregation produces 10 categories while reducing the change to 9%. We offer a freecomputer program to perform the behavior-based aggregation. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/79587
Appears in Collections: 气候变化事实与影响
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作者单位: Ramallah Municipality, 4 Issa Ziadeh Street, Ramallah, Palestine; Department of Earth and Environment, Florida International University, 11200 SW 8th Street, Miami, FL, United States; School of Geography, Clark University, 950 Main Street, Worcester, MA, United States
Recommended Citation:
Aldwaik S,Z,, Onsted J,et al. Behavior-based aggregation of land categories for temporal change analysis[J]. International Journal of Applied Earth Observation and Geoinformation,2015-01-01,35(PB)