대한지리학회지 (Journal of the Korean Geographical Society)

대한지리학회 (The Korean Geographical Society)
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상업적 토지이용 패턴의 시공간 변화 탐색을 위한 공간통계 기법 적용 연구

Research on Application of Spatial Statistics for Exploring Spatio-Temporal Changes in Patterns of Commercial Landuse

  • 신정엽 (서울대학교 지리교육과) ;
  • 이경주 (뉴욕주립대(버팔로) 지리학과)
  • Shin, Jung-Yeop (Department of Geography Education, Seoul National University) ;
  • Lee, Gyoung-Ju (Department of Geography, State University of New York at Buffalo)
  • 발행 : 2007.09.30
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초록

많은 지리적 현상은 시간 변화에 따라 동적인 공간 패턴을 보이며, 이러한 동적인 공간 패턴을 탐색하기 위한 연구들이 수행되어왔다. 그러나 기존의 많은 연구는 시간의 흐름에 따른 공간 패턴의 변화를 연속 또는 누적 측면에서 다루기보다는 특정 시점이나 기간 동안의 정적인 공간 패턴 분석에 초점을 두고 있다. 따라서 시간 변화 과정에서 수반되는 공간 프로세스의 관성(inertia)을 효과적으로 파악할 필요가 있다. 이러한 측면을 고려하여, 본 연구의 목적은 지리현상의 공간패턴을 탐색하는 새로운 공간통계 탐색방법을 제안하고, 이를 사례연구에 적용하는데 있다. 즉, 새로운 공간통계량을 제안하고, 몬테카를로 시뮬레이션(Monte Carlo Simulation)을 통해 새로운 통계량의 z-값을 산출한 뒤, 시간 변화에 따른 공간 패턴의 변화를 누적 방식으로 탐색하는 방법을 소개하고자 한다. 이를 위해 공간 패턴을 측정하는 J 통계량과 CUSUM 통계량이 결합된 방법을 제안하고, 사례연구로 최근 200년 동안 미국 뉴욕 주의 이리 카운티(Erie County)의 상업적 토지이용의 공간 패턴 변화를 살펴보았다. 이러한 시공간 패턴 변화 탐색 방법을 통하여 새로 구성된 공간통계량을 단위시간마다 누적적으로 반영하여 공간패턴의 연속적인 변화추이의 효과적인 탐색이 가능하였다.

Lots of geographic phenomena have dynamic spatial patterns with time changes, and there have been lots of researches on exploring these dynamic spatial patterns. However, most of these researches focused on the static pattern analysis in a given period, rather than dealing with dynamic changes in the spatial pattern over time with the continual or cumulative perspective. For this reason, investigation of the inertia of spatial process in terms of temporal changes is needed. From this background, the purpose of this paper is to propose the methodology to explore the changes in spatial pattern cumulatively by considering the inertia of the spatial statistics over time, and to apply it to the case study That is, we introduce the new spatial statistic, and produce the z-values of the statistic using Monte Carlo Simulation, and then to explore the changes in spatial patterns over time cumulatively. To do this, the method to combine the J statistic with CUSUM statistic for exploring spatial patterns, and to apply it to the changes in the commercial landuse in Erie County, New York State. Through the proposed method for spatio-temporal Patterns, we could explore continual changes effectively in the spatial patterns reflecting the statistics by temporal spot cumulatively.

키워드

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