Skip to Main Content
Book Chapter

Use of morphometric variables and self-organizing maps to identify clusters of alluvial fans and catchments in the north Peloponnese, Greece

By
Efthimios Karymbalis
Efthimios Karymbalis
1
Department of Geography, Harokopio University, 70 El. Venizelou Street, Kallithea 17671, Athens, Greece
Search for other works by this author on:
Maria Ferentinou
Maria Ferentinou
2
Department of Geology, School of Agricultural, Earth and Environmental Sciences, University of KwaZulu-Natal, Westville Campus, Block H1, Durban, South Africa
Search for other works by this author on:
Philip T. Giles
Philip T. Giles
3
Department of Geography and Environmental Studies, Saint Mary’s University, 923 Robie Street, Halifax, Nova Scotia, Canada, B3H 3C3
Search for other works by this author on:
Published:
January 01, 2018

Abstract

We applied a computational method to aid in clustering 41 alluvial fans along the southern coast of the Gulf of Corinth, Greece. The morphology of the fans and their catchments was quantitatively expressed through 12 morphometric parameters estimated using geographical information system techniques and the relationships among the geomorphometric features of the fans and their catchments were examined. Self-organizing maps were used to investigate the clustering tendency of fans based on morphometric variables describing both the fans and their corresponding catchments. The results of unsupervised classification through the self-organizing maps method revealed correlations among the morphometric parameters and five groups of alluvial fans were identified. These groups had a clear physical explanation, showed a preferred geographical distribution and reflected the processes related to the development of the fans. The geographical distribution of the fan catchment groups was partially controlled by variations in the relative tectonic uplift rate, which was the main control on the accommodation space for the development and accretion of the fans. The smaller fans were located in the central part of the study area, where the uplift rates were higher, whereas larger fluvial-dominated fan deltas formed to the east and west of the central group, where the uplift rates were lower.

You do not currently have access to this article.

Figures & Tables

Contents

Geological Society, London, Special Publications

Geology and Geomorphology of Alluvial and Fluvial Fans: Terrestrial and Planetary Perspectives

D. Ventra
D. Ventra
Utrecht University, the Netherlands
Search for other works by this author on:
L. E. Clarke
L. E. Clarke
University of Gloucestershire, UK
Search for other works by this author on:
Geological Society of London
Volume
440
ISBN electronic:
9781786203809
Publication date:
January 01, 2018

References

Related

Citing Books via

Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal