基于过程对象的地表覆盖变化时空过程表达模型

发布时间：2018-01-11 15:34

本文关键词：基于过程对象的地表覆盖变化时空过程表达模型　出处：《吉林大学学报(地球科学版)》2017年03期 　论文类型：期刊论文

【摘要】：时空过程表达是时空数据分析、规律发掘等研究热点的基础。本文从土地利用/地表覆盖变化(land use/cover change,LUCC)时空数据分析和规律发掘应用角度出发,提出了一种基于过程对象的时空过程表达模型,阐述了该模型的时空过程判定方法和存储管理方法。该模型将地表覆盖斑块看作时空对象,将斑块自身变化和相互转化以对象时空过程的形式表达;通过时空过程的组合来表达空间范围更广的时空变化,使斑块变化与景观格局总体变化联系起来。该模型可用于面状地理实体的时空演变模拟和变化规律挖掘等。通过对黑龙江大兴安岭地区地表覆盖时空过程对象的建立、检索与分析,验证了模型的有效性。
[Abstract]:The representation of spatiotemporal processes is the basis of the research focus of spatiotemporal data analysis and regularity mining. This paper discusses land use/cover change from land use / land cover change. Based on the application of LUCC-based spatio-temporal data analysis and regularity discovery, a spatio-temporal process representation model based on process object is proposed. The spatiotemporal process decision method and storage management method of the model are described. The model regards the patch as a spatio-temporal object, and expresses the changes and mutual transformation of the patch itself in the form of the spatio-temporal process of the object. Through the combination of spatiotemporal processes to express a broader range of space-time changes. The model can be used to simulate the temporal and spatial evolution of geographic entities and to excavate the rules of change. The spatial and temporal processes of surface cover in Daxinganling area, Heilongjiang Province, are studied in this paper. Set up. Retrieval and analysis verify the validity of the model.
【作者单位】：武汉大学遥感信息工程学院;
【基金】：国家“十二五”科技支撑计划项目(2012BAJ15B04)~~
【分类号】：P208
【正文快照】： 0引言地表覆盖变化是全球变化、地理国情监测的重点研究内容之一,其变化过程研究大多基于对时空对象的分析。时空分析研究与现有GIS(geographicinformation system)时空分析类似,也存在相对空间与绝对空间的描述[1]。当前地表覆盖研究主要通过栅格时序遥感数据来表达地理绝对

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