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

journal contribution
posted on 2023-06-08, 12:22 authored by Carol AlexanderCarol Alexander, H M Rendell
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.

History

Publication status

  • Published

Journal

Geographical Analysis

ISSN

0016-7363

Publisher

Wiley-Blackwell

Issue

1

Volume

27

Page range

78-93

Department affiliated with

  • Business and Management Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2012-09-25

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