Geography, Spatial Data Analysis, and Geostatistics: An Overview

Geostatistics is a distinctive methodology within the field of spatial statistics. In the past, it has been linked to particular problems (e.g., spatial interpolation by kriging) and types of spatial data (attributes defined on continuous space). It has been used more by physical than human geographers because of the nature of their types of data. The approach taken by geostatisticians has several features that distinguish it from the methods typically used by human geographers for analyzing spatial variation associated with regional data, and we discuss these. Geostatisticians attach much importance to estimating and modeling the variogram to explore and analyze spatial variation because of the insight it provides. This article identifies the benefits of geostatistics, reviews its uses, and examines some of the recent developments that make it valuable for the analysis of data on areal supports across a wide range of problems.     

What Has the Geography of Sleeping Arrangements Got to Do with the Geography of Our Teaching Spaces?

As geographers we are used to researching and teaching about those other than ourselves and it is timely to turn our gaze on the social and spatial practices of our own teaching spaces. One particular teaching space is the overnight geography field trip, a context in which geography fieldwork is ostensibly the main focus for two or more consecutive days. Teaching spaces such as classrooms and field trips, like all social spaces, are imbued with spoken and unspoken assumptions about sexuality, gender and 'race'. Geography field trips are one site in which to examine how social space is constituted via spoken and unspoken assumptions and how these assumptions shape field trip participants' understandings of themselves within these spaces. Simultaneously, field trips offer a site for the consideration of the socio-spatial relations of the reproduction of contemporary geographic knowledge. This article is one response to what Jon Binnie identified as an urgent need for geographers to understand how geography is being taught. Although sleeping arrangements are 'not formally notified' as part of fieldwork activity, the author demonstrates how sleeping arrangements conveyed important messages about sexuality, gender and cultural practices during seven overnight field trips held by two universities and two high schools in New Zealand. The concern is how apparently mundane arrangements such as the organisation of sleeping might reveal the ongoing hegemonic social and spatial relations of teaching and learning geography, as these are shaped by sexuality, gender and 'race', so that we might be better informed to challenge and change these practices.     

Research in the spatial sciences: how are Canadian geographers contributing?

Geographic data collection, manipulation, analysis and visualization options have experienced substantial improvements during the past several decades, largely spurred by advancements in computing capabilities. While geographers are often credited with identifying and expanding many of the emerging application areas and innovations for the analysis of spatially (and sometimes temporally) referenced data, we are specifically interested in the role of Canadian geographers in the rapidly evolving domain of spatial science. We pose the following provocative question with the intent of not only summarizing the Canadian literature, but also to stimulate an informed discussion: ‘are Canadian geographers developers or users of spatial analytical methods?’ We review the refereed literature from 1980 to 2008 to describe the nature of contributions by Canadian geographers, beginning at about the time of widely accessible computing (1980s). Our summary broadly classifies subdisciplinary contribution areas as being best described as GIS, remote sensing, or spatial statistics, while each contribution area may take the type of algorithm development, advancement and synthesis of theory, or the application of existing methods. We paint a picture of the current contribution landscape and reflect on significant achievements while commenting on some potential weakness that with increased resources and focus might become future realms of advancement.     

The Indexification of Poverty: The Covert Politics of Small-Area Indices

In recent decades statistical indices have become a dominant method for measuring many features of the social world. While the resulting enumerations are regularly cited by critical human geographers, the wider political stakes of indexing the world remain unaddressed. In this article, we theorise indexification as the process through which composite statistics transform theoretical constructs into epistemic objects, and then geographically bounded rankings. Rather than a neutral process, we argue that these epistemological manoeuvres can mask various forms of violence. Through a detailed analysis of the UK's Index of Multiple Deprivation (IMD), we highlight the clandestine politics of indexification and their tendency to conceal harms meted out by the state. Seeking a more critical reckoning with indices, we conclude by calling for and outlining a project of radical indexification—a participatory, democratic, and transparent endeavour that takes spatial justice as its organising principle.     

Embodying violence: critical geographies of gender,race, and culture

The papers in this themed section collectively explore the intertwined geographies of corporeality and violence; to explore the ways in which narrow representations of race and culture are imbricated in the mis/understanding of gender based violence. This introductory essay draws out linkages across these papers, and to several themes in feminist geography. Combined, the four papers in the themed section offer new pathways for feminist geographers to consider. The authors connect the intimate and the global, the personal and the geopolitical, and offer critical insights into how feminist geographers might unpack entangled inequalities that give rise to distinct experiences of violence. Through their disparate studies, the authors also destabilize the assumptions mapped onto gendered bodies, particularly those that rely on racist, sexist, and classist representations of ‘culture’ and ‘community’ to describe gendered vulnerability. Subsequently, their analyses reveal how these assumptions simultaneously work to erase or ignore structural inequalities of capitalism or the state, which frame, contribute to and perpetuate violence against vulnerable bodies and geographies. They collectively underscore the epistemological, methodological and ontological possibilities of corporeal geographies particularly when tasked with intellectually analyzing both exceptional and everyday experiences of violence.     

TENURE SECURITY INTERVENTIONS IN CAMBODIA: TESTING BEBBINGTON'S APPROACH TO DEVELOPMENT GEOGRAPHY

The relationship between the development industry and the problems it claims to address is problematic. Development studies have often found development practice systematically misrepresenting its context with the result that interventions are out of kilter with reality and fail. In a series of articles in the early 2000s Antony Bebbington suggested development geographers attend to the spatial distribution of development interventions by mapping and explaining immanent development, mapping and explaining intentional development and studying the relationships between them. This article uses the case of property rights interventions in Cambodia to examine the extent that Bebbington's approach might explain development interventions and their relationship to the contexts into which they are inserted. Primary data consist of interviews with key actors involved in decisions over the locations of these interventions. Secondary data consist of reports and databases showing their geographical spread, and political and social science literature explaining the main transitions in recent Cambodian history. The main empirical finding is that the interventions, land titling and community forestry, have not been implemented in the places where the problems they are claimed to address are located. The methodological reflection is that Bebbington's approach valuably challenges policy narratives that tend to smooth space and conceal unevenness. However, it provides only a broad theoretical framework rather than any theoretical content. The approach may only realize its potential when Bebbington and others begin to apply it to generate hypotheses and theory. A new hypothesis emerging from the Cambodian case is briefly introduced in this regard.     

Evolutionary Foraging Models in Zooarchaeological Analysis: Recent Applications and Future Challenges

The last few decades have witnessed a rapid rise in the use of foraging models derived from behavioral ecology to explain and predict temporal and spatial differences in faunal assemblages. Although these models build on conventional ideas about utility firmly embedded in zooarchaeological analyses, when cast in an evolutionary framework these ideas produce some of the most sophisticated and elegant interpretations of archaeofaunas to date. In this article I review the methodological and practical strengths and weaknesses of current zooarchaeological applications of foraging models. Recent applications of foraging models to the zooarchaeological record reveal important variability in human-prey interactions across time and space. Case-specific applications generate theoretical and methodological advances that augment and are complementary to model building in allied fields. Recent applications also identify shortcomings in the underlying assumptions and rationale of some foraging models that mirror past and on-going discussions in anthropology and biology. I discuss how these shortcomings can fruitfully direct future applications and research in foraging economics.     

"The Problem of Spatial Autocorrelation" and Local Spatial Statistics

This article examines the relationship between spatial dependency and spatial heterogeneity, two properties unique to spatial data. The property of spatial dependence has led to a large body of research into spatial autocorrelation and also, largely independently, into geostatistics. The property of spatial heterogeneity has led to a growing awareness of the limitation of global statistics and the value of local statistics and local statistical models. The article concludes with a discussion of how the two properties can be accommodated within the same modelling framework.     

Maximum Getis–Ord Statistic Adjusted for Spatially Autocorrelated Data

Local statistics test the null hypothesis of no spatial association or clustering around the vicinity of a location. To carry out statistical tests, it is assumed that the observations are independent and that they exhibit no global spatial autocorrelation. In this article, approaches to account for global spatial autocorrelation are described and illustrated for the case of the Getis–Ord statistic with binary weights. Although the majority of current applications of local statistics assume that the spatial scale of the local spatial association (as specified via weights) is known, it is more often the case that it is unknown. The approaches described here cover the cases of testing local statistics for the cases of both known and unknown weights, and they are based upon methods that have been used with aspatial data, where the objective is to find changepoints in temporal data. After a review of the Getis–Ord statistic, the article provides a review of its extension to the case where the objective is to choose the best set of binary weights to estimate the spatial scale of the local association and assess statistical significance. Modified approaches that account for spatially autocorrelated data are then introduced and discussed. Finally, the method is illustrated using data on leukemia in central New York, and some concluding comments are made.     

Spatial Strategic Planning in the Stockholm Region—Discourses on the Space-economy and Growth Factors

This article analyses strategic spatial planning for city regions. The analysis uses a strategic development plan for a region as an example and is intended to contribute to discussion about the role of politics and the state in economic structures and processes. The objective was to define the types of discourses in the Stockholm plan. Norman Fairclough's (Analysing Discourse, New York, Routledge, 2003) methodological framework for analysing texts in social research was an important source of the study design. The analysis focused on assumptions in the text and the compatibility of these with different concepts of dynamic development and economic growth in city regions. These concepts were city as clusters, city as interconnection, city as milieu and city as symbol. Outcomes of the analysis showed that the strategic development plan for the Stockholm region stresses large-scale international economic activities and specialized cluster activities, but it marginalizes other activities. In the context of city regions comprising a multiplicity of actors and activities, such a one-sided approach may hinder broad economic development. A more nuanced representation of the urban economy in strategic planning is called for.     

About S. V. Kalesnik's Article on “Monism” and “Dualism” in Soviet Geography

The author defends V. A. Anuchin's efforts to develop the theory of unity of geography based on Marxist-Leninist philosophy. Konovalenko finds that Americans are closely following the theoretical discussion in Soviet geography because they, too, are supposedly searching for a methodological foundation of a unified geography. He holds that Soviet geography, by developing such a theory on a Marxist basis, can win followers within the ranks of foreign geographers, including Americans. S. V. Kalesnik's article appeared in Izvestiya Vsesoyuznogo Geograficheskogo Obshchestva, 1962, No. 1, pp. 15–25, and was translated in Soviet Geography, September 1962 pp. 3–16).     

Exploring the Use of Computer Vision Metrics for Spatial Pattern Comparison

Detection of changes in spatial processes has long been of interest to quantitative geographers seeking to test models, validate theories, and anticipate change. Given the current “data-rich” environment of today, it may be time to reconsider the methodological approaches used for quantifying change in spatial processes. New tools emerging from computer vision research may hold particular potential to make significant advances in quantifying changes in spatial processes. In this article, two comparative indices from computer vision, the structural similarity (SSIM) index, and the complex wavelet structural similarity (CWSSIM) index were examined for their utility in the comparison of real and simulated spatial data sets. Gaussian Markov random fields were simulated and compared with both metrics. A case study into comparison of snow water equivalent spatial patterns over northern Canada was used to explore the properties of these indices on real-world data. CWSSIM was found to be less sensitive than SSIM to changing window dimension. The CWSSIM appears to have significant potential in characterizing change and/or similarity; distinguishing between map pairs that possess subtle structural differences. Further research is required to explore the utility of these approaches for empirical comparison cases of different forms of landscape change and in comparison to human judgments of spatial pattern differences.     

Placing GIS in sustainability education

As public awareness about sustainability grows and as higher education advances sustainability more comprehensively, geographers have an opportunity to take a role in sustainability education. This article examines (1) what constitutes sustainability education, (2) how geographic concepts and Geographic Information System (GIS) are relevant to sustainability education, and (3) how geospatial thinking can be incorporated into the sustainability curriculum using GIS. This research proposes five geospatial inquiries that students can make to explore sustainability issues using GIS, which are spatial distribution, spatial interactions, spatial relationships, spatial comparisons, and temporal relationships. Definition, examples, and uses of these five geospatial inquiries supported by GIS are provided.     

What Were We Thinking?

This article outlines the context in geography and statistics in the mid 1960s, at the height of geography's so-called "quantitative revolution," that led us into a long-term collaboration about spatial statistics, which has continued in surges and lulls for some 40 years. We focus upon problems in spatial autocorrelation, including the measurement of autocorrelation, distribution theory, and variable geographical lattices. This narrative may not describe how it was, but it does describe how we remember the events of the time.     

Geographical imaginations,public education and the everyday worlds of Fascist Italy

This article explores the phenomena of geographical imaginations and their seldom-noted promotion within various corners of Fascist Italy. Imagined geographies are socially constructed understandings of other places and regions and, as such, they are malleable, contingent, shifting and unquantifiable. Nevertheless, these imaginaries help us to navigate our imaginative worlds and our relative place in the material world. In 1930s Italy, various interest groups associated with the colonial and expansionist projects of Fascism promoted the development of wider geographical imaginaries among Italians. Academic geographers were often key figures in these initiatives: some prompted these projects, while others did so at the behest of the regime and its desire to expand Italians' coscienza geografica (the geographical imagination) to an ‘imperial level’. This article explores how academic geographers from Trieste sought to contribute to this project and to embed their geographical knowledge into the ordinary, everyday circuits of public life. The article therefore outlines the notion of the geographical imagination and demonstrates via case studies how Triestine geographers tried to nurture these phenomena. Finally, it suggests that, although elusive and amorphous, geographical imaginations were a feature of everyday life in some corners of Fascist Italy and, as such, they deserve academic attention.     

QUANTITATIVE GEOGRAPHY*

ABSTRACT This paper provides an overview of quantitative geography. In addition to discussing what quantitative geography is, the paper details the methods that have come to define it. Six broad categories are used to discuss the range of methods found in quantitative geography: geographic information systems; airborne sensing (global positioning system, photogrammetry, and remote sensing); statistics and exploratory spatial data analysis; mathematics and optimization; regional analysis; and computer science and simulation. Particular emphasis is given to the state of the art in each area and the contributions of geographers, with associated discussion on major unresolved issues and future research directions.     

Turkey's Bid for European Union Membership: Between "Thick" and "Thin" Conceptions of Europe

A team of Central Europe-based political geographers examines Turkey's bid for European Union (EU) membership, one of the most controversial issues confronting that country's and EU politics. The authors analyze Eurobarometer public opinion survey data on EU enlargement (and particularly Turkey's EU membership) across the 27 polities of the enlarged EU as well as in Turkey itself. The analysis of the data points to clear regional differences in support for Turkey's EU membership. Moreover, the authors' statistical analysis indicates two major components around which public perceptions of Turkey's EU membership coalesce. The first, identified as a "thick" component, based on the idea that EUrope embodies a specific cultural identity, opposes Turkish membership, whereas a second "thin" component, comprised of institutional-procedural norms, leaves the door open to Turkey. They argue that it is at the complex intersection of these two opposing views that Turkey's bid for EU membership should be located and eventually decided.     

Geography and Global Change Science: Relationships Necessary,Absent, and Possible

Initiated by geoscientists, the growing debate about the Anthropocene, ‘planetary boundaries’ and global ‘tipping points’ is a significant opportunity for geographers to reconfigure two things: one is the internal relationships among their discipline's many and varied perspectives (topical, philosophical, and methodological) on the real; the other the discipline's actual and perceived contributions to important issues in the wider society. Yet, without concerted effort and struggle, the opportunity is likely to be used in a ‘safe’ and rather predictable way by only a sub‐set of human‐environment geographers. The socio‐environmental challenges of a post‐Holocene world invite old narratives about Geography's holistic intellectual contributions to be reprised in the present. These narratives speak well to many geoscientists, social scientists, and decision‐makers outside Geography. However, they risk perpetuating an emaciated conception of reality wherein Earth systems and social systems are seen as knowable and manageable if the ‘right’ ensemble of expertise is achieved. I argue that we need to get out from under the shadow of these long‐standing narratives. Using suggestive examples, I make the case for forms of inquiry across the human‐physical ‘divide’ that eschew ontological monism and that serve to reveal the many legitimate cognitive, moral, and aesthetic framings of Earth present and future. Geography is unusual in that the potential for these forms of inquiry to become normalised is high compared with other subjects. This potential will only be taken advantage of if certain human‐environment geographers unaccustomed to engaging the world of geoscience and environmental policy change their modus operandi.     

Teaching introductory GIS programming to geographers using an open source Python approach

Computer programming is not commonly taught to geographers as a part of geographic information system (GIS) courses, but the advent of NeoGeography, big data and open GIS means that programming skills are becoming more important. To encourage the teaching of programming to geographers, this paper outlines a course based around a series of laboratories that aims to provide an introduction to programming. Methods for teaching and assessment are recommended. These laboratories use core spatial concepts that are relevant for all areas of geographic study, and use an open source Python approach that has wider logistical and pedagogical benefits.     

遗址资料整理点滴（一）——关于陶器统计表

本文结合自身的整理工作实践．在认识陶器统计意义的基础上．提出一些构想：陶器统计的核心是器形;它在排队和分期中,占有重要的地位。而质地、个体数量、纹饰等不同的侧面属性在统计中尽可能的与器形建立联系,是资料整理和相关研究中要面对的问题。作为遗物．那些侧面的属性本身就是依附于器形存在的,因此．统计既是某些侧面属性的分析．也应当是一种综合,这样有利于读者和研究者比较全面的使用陶器统计资料。本文尝试提出了一种既可拆分有可综合的陶器统计表方案;此外,对于不同时期的遗址陶器资料,由于各自特点不同,在条件许可的情况下,还提出了设计一些反映陶器群个性的统计表设想。