Data generation processes for spatial series: the example of ephemeral channel form

Alexander, C O and Rendell, H M (1995) Data generation processes for spatial series: the example of ephemeral channel form. Geographical Analysis, 27 (1). pp. 78-93. ISSN 0016-7363

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Abstract

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.

Item Type: Article
Schools and Departments: School of Business, Management and Economics > Business and Management
Subjects: G Geography. Anthropology. Recreation > GA Mathematical geography. Cartography
Depositing User: Carol Alexander
Date Deposited: 25 Sep 2012 14:17
Last Modified: 25 Sep 2012 14:17
URI: http://sro.sussex.ac.uk/id/eprint/40621
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