The use of historical bathymetric charts in a GIS to assess morphological change in estuaries.
Navigational charts are a valuable data source for the study of morphological change in estuaries, as they provide bathymetric information of many estuaries, and span a vast period of time. Charts are suitable for studying patterns of morphological change, such as shoal and channel migration. In add...
| Publicado en: | Geographical Journal Vol. 169; no. 1; pp. 21 - 32 |
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| Autores principales: | , |
| Formato: | Artículo |
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Wiley-Blackwell
Mar2003
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=hlh&AN=9514964&site=ehost-live header: @attributes: shortDbName: hlh uiTerm: 9514964 longDbName: Humanities International Complete uiTag: AN controlInfo: bkinfo: jinfo: jid: 00167398 GEO jtl: Geographical Journal issn: 00167398 maglogo: Y pubinfo: dt: Mar2003 vid: 169 iid: 1 pid: 480 pub: Wiley-Blackwell artinfo: ui: 9514964 10.1111/1475-4959.04943 ppf: 21 ppct: 11 formats: fmt: @attributes: type: P size: 438KB tig: atl: The use of historical bathymetric charts in a GIS to assess morphological change in estuaries. aug: au: Van Der Wal, Daphne Pye, Kenneth affil: Centre for Estuarine and Marine Ecology, Netherlands Institute of Ecology (NIOO-KNAW), PO Box 140, 4400 AC Yerseke, The Netherlands, and Department of Geology, Royal Holloway, University of London, Egham TW20 0EX, UK E-mail: d.vanderwal@nioo.knaw.nl su: Nautical charts Estuaries Erosion sug: subj: Nautical charts Estuaries Erosion keyword: bathymetric charts error estuaries morphology north-west England Ribble Estuary sediment budget ab: Navigational charts are a valuable data source for the study of morphological change in estuaries, as they provide bathymetric information of many estuaries, and span a vast period of time. Charts are suitable for studying patterns of morphological change, such as shoal and channel migration. In addition, sequential bathymetric charts or bed surveys can be used to calculate sedimentation and erosion rates. However, a number of problems arise when using these data to identify morphological change. Sources of error and uncertainty are associated with surveying techniques used, density of depth sampling points, interpolation and averaging during compilation of the chart. Large systematic errors may stem from the non-uniformity or poorly defined levels to which the depths on the charts are reduced. Errors propagate in spatiotemporal operations using such charts. Analysis of historical bathymetric charts from the Ribble estuary (north-west England) illustrates the difficulties involved in assessing morphological change in a quantitative manner. The pattern of morphological development within the Ribble estuary over the last 150 years was clear, and a significant long-term net accretional trend was found. However, temporal variations in the rate of sedimentation on a decadal scale were generally not significant. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: Y custom: Copyright of Geographical Journal is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. item: Geographical Journal holder: Wiley-Blackwell dt: @attributes: year: 2003 holdings: @attributes: islocal: N |
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