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Atoll rim expansion or erosion in Diego Garcia Atoll, Indian Ocean? : comment on Hamylton, S., East, H. A geospatial appraisal of ecological and geomorphic change on Diego Garcia Atoll, Chagos Islands (British Indian Ocean Territory). Remote Sens. 2012, 4, 3444–3461

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Sheppard, Charles (Charles R. C.) (2014) Atoll rim expansion or erosion in Diego Garcia Atoll, Indian Ocean? : comment on Hamylton, S., East, H. A geospatial appraisal of ecological and geomorphic change on Diego Garcia Atoll, Chagos Islands (British Indian Ocean Territory). Remote Sens. 2012, 4, 3444–3461. Remote Sensing, Volume 6 (Number 3). pp. 2463-2467. doi:10.3390/rs6032463

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Official URL: http://dx.doi.org/10.3390/rs6032463

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Abstract

Hamylton and East [1] reported a remarkably substantial expansion and accretion of land since the 1960s at numerous sites along the island of Diego Garcia atoll. This atoll has a near continuous rim encircling its lagoon, and they reported that the width of the island rim has expanded by several tens of metres in many places. Those results contrast markedly with my own near-annual observations on the ground where erosion and increased seawater inundation, rather than land accretion, is evident in many places. Hamylton and East have never visited the atoll but their results have been picked up for various reasons. Therefore I note possible reasons for the substantial discrepancy between their measurements and my own observations, and propose a resolution.

Item Type: Journal Item
Subjects: G Geography. Anthropology. Recreation > GB Physical geography
Divisions: Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- )
Library of Congress Subject Headings (LCSH): Diego Garcia Atoll (Indian Ocean), Coast changes -- Indian Ocean, Erosion -- Indian Ocean
Journal or Publication Title: Remote Sensing
Publisher: M D P I AG
ISSN: 2072-4292
Official Date: 19 March 2014
Dates:
DateEvent
19 March 2014Published
24 February 2014Accepted
21 November 2013Submitted
Volume: Volume 6
Number: Number 3
Page Range: pp. 2463-2467
DOI: 10.3390/rs6032463
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access (Creative Commons)
Date of first compliant deposit: 27 December 2015
Date of first compliant Open Access: 27 December 2015

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