Statistical modeling of spatially stratified heterogeneous data

Wang, Jinfeng; Haining, Robert; Zhang, Tonglin; Xu, Chengdong; Hu, Maogui; Yin, Qian; Li, Lianfa; Zhou, Chenghu; Li, Guangquan; Chen, Hongyan. 2024 Statistical modeling of spatially stratified heterogeneous data. Annals of the American Association of Geographers, 114 (3). 499-519.

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Spatial statistics is an important methodology for geospatial data analysis. It has evolved to handle spatially autocorrelated data and spatially (locally) heterogeneous data, which aim to capture the first and second laws of geography, respectively. Examples of spatially stratified heterogeneity (SSH) include climatic zones and land-use types. Methods for such data are relatively underdeveloped compared to the first two properties. The presence of SSH is evidence that nature is lawful and structured rather than purely random. This induces another “layer” of causality underlying variations observed in geographical data. In this article, we go beyond traditional cluster-based approaches and propose a unified approach for SSH in which we provide an equation for SSH, display how SSH is a source of bias in spatial sampling and confounding in spatial modeling, detect nonlinear stochastic causality inherited in SSH distribution, quantify general interaction identified by overlaying two SSH distributions, perform spatial prediction based on SSH, develop a new measure for spatial goodness of fit, and enhance global modeling by integrating them with an SSH q statistic. The research advances statistical theory and methods for dealing with SSH data, thereby offering a new toolbox for spatial data analysis.

Item Type: Publication - Article
Digital Object Identifier (DOI):
UKCEH and CEH Sections/Science Areas: Pollution (Science Area 2017-)
ISSN: 2469-4452
Additional Information. Not used in RCUK Gateway to Research.: Open Access paper - full text available via Official URL link.
Additional Keywords: confounding, inference, sample bias, spatial causality, spatially stratified heterogeneity
NORA Subject Terms: Data and Information
Date made live: 09 Feb 2024 13:07 +0 (UTC)

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