Data Generation Processes for Spatial Series: The Example of Ephemeral Channel Form

Recently developed techniques for time series analysis are applied to channel width and slope series collected in small ephemeral channels in Southern Italy. Tests for the difference between trend and difference stationarity, although developed in the field of econometrics, are found to be more suitable for data generation processes in geomorphology, where physical causes of deterministic trends are evident. These tests are important because the modeling of causal flows and development of dynamic predictive models depends on the type of data generation process that is identified. The ephemeral channel data exhibit trend stationarity and the results of spectral analysis and vector autoregression analysis of detrended channel width and slope data are described.     

Iceland: A Comment

Abstract

North-West England was the site of Britain's first canal and of one of the last true canal warehouses. The Duke's Warehouse in the Castlefield Canal Basin in Manchester was the first canal warehouse to have the classic design features of internal canal arms, multi-storeys, split level loading, terracing and water powered hoists, and was built between 1769 and 1771. The Great Northern Warehouse, in the centre of Manchester, was the last of the monumental road, rail and canal interchanges to be built in the Victorian period. Finished in 1898, it marked the close of the canal warehouse tradition and the beginning of motorised road transport storage. Between the two buildings were nearly 130 years of innovation and change. With at least 58 surviving canal warehouses across the region, from Kendal in the north to Bunbury in the south, North-West England contains one of the largest, and most important, groups of canal warehouses in Europe (Figures 1 and 2). As general purpose redistribution centres they were a vital element in feeding the rapidly growing industrial urban populations of the region. Furthermore, their design influenced the building of the first railway warehouses, and later the textile warehouse, and although the canals were superseded by the railway, the canal warehouse remained an important element of the transport economy until the arrival of road haulage in the 1920s. This paper is based upon research undertaken by the author in 2000 and 2001 as part of the Tameside Archaeological Survey. This is a landscape archaeology project funded by Tameside MBC and undertaken on their behalf by the University of Manchester Archaeological Unit.     

The Terracotta Industry: its Distribution,Manufacturing Processes and Products

Abstract

This article considers the industrial aspects of the revival of terracotta and faience as architectural materials during the last two hundred years. It demonstrates how the distribution and development of the industry, and the nature of the terracotta produced, relates closely to clay geology. The transition from using younger clays found in the south-west of England through to exploiting clays from the Coal Measures explains the emergence of new firms able to mass-produce large, brightly coloured blocks on an extensive scale. In examining the technology of manufacture it is apparent that the basic processes changed little during the course of the revival, but that skills in making models and moulds in plaster and in applying glazes were fundamental to the decorative qualities of terracotta and faience architecture.     

A Combined Cluster and Interaction Model: The Hierarchical Assignment Problem

This article presents a new spatial modeling approach that deals with interactions between individual geographic entities. The developed model represents a generalization of the transportation problem and the classical assignment problem and is termed the hierarchical assignment problem (HAP). The HAP optimizes the spatial flow pattern between individual origin and destination locations, given that some grouping, or aggregation of individual origins and destinations is permitted to occur. The level of aggregation is user specified, and the aggregation step is endogenous to the model itself. This allows for the direct accounting of aggregation costs in pursuit of optimal problem solutions. The HAP is formulated and solved with several sample data sets using commercial optimization software. Trials illustrate how HAP solutions respond to changes in levels of aggregation, as well as reveal the diverse network designs and allocation schemes obtainable with the HAP. Connections between the HAP and the literature on the p-median problem, cluster analysis, and hub-and-spoke networks are discussed and suggestions for future research are made.     

Protest, Scale, and Publicity: The FBI and the H Rap Brown Act

This paper deals with issues of political dissent and the geography of state power through the lens of a particular law and its deployment by the US state in the context of the 1973 occupation of Wounded Knee, South Dakota by American Indian Movement activists and local residents. I explore how the state responded to the highly mediated nature of the Wounded Knee occupation through tactics that minimized the visibility of its efforts to contain the protest. These efforts, I argue, also constituted a broader politics of scale. I begin with a theoretical discussion of the intersection of protest, scale and publicity. I then use the empirical example of the H Rap Brown Act to show how these dynamics were being reworked in the US during the late 1960s and early 1970s. In particular, I place the emergence of the H Rap Brown Act within a context of changing geographies of race and state power, more specifically as they were articulated around the unrest that was engulfing American cities. I then analyze how the law was deployed by the state during the 1973 occupation of Wounded Knee. Finally, I conclude with a discussion of what the case of the H Rap Brown Act has to tell us more broadly about our theoretical understandings of the geographies of public protest.     

Debating Belarus: A Framing Comment

A British political scientist and eminent specialist on the politics of the post-Soviet states comments on the divergent perspectives offered in the two preceding papers in the symposium on Belarus in the same issue of Eurasian Geography and Economics. He first briefly reviews the diverse approaches to the study of Belarus evident in the academic literature, and the reasons scholars might be led to the country as a topic of study, especially its suitability as a test bed for several issues of importance in comparative studies (e.g., the nature of presidential power and of political "charisma," of governance without political parties, and an economic model that has appeared until now to have resisted the path of accelerated market reform). Probing more deeply, the author identifies issues of the comparative method of particular relevance to the exchange that warrant further investigation, and goes on to present his own survey data (from early 2011 for Belarus and from 2010 in Ukraine and Russia) in an effort to advance the debate on these issues. In concluding, he suggests a line of further enquiry for understanding better the seeming paradox that is Belarus—the role played by retention of "Soviet" institutions (e.g., trade unions, local councils) that offer a means of communication between ordinary citizens and the authorities.