کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5781123 1635367 2017 48 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Understanding coastal change using shoreline trend analysis supported by cluster-based segmentation
ترجمه فارسی عنوان
شناخت تغییرات ساحلی با استفاده از تجزیه و تحلیل روند خط ساحلی توسط تقسیم بندی مبتنی بر خوشه پشتیبانی می شود
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
چکیده انگلیسی
Shoreline change analysis is a well defined and widely adopted approach for the examination of trends in coastal position over different timescales. Conventional shoreline change metrics are best suited to resolving progressive quasi-linear trends. However, coastal change is often highly non-linear and may exhibit complex behaviour including trend-reversals. This paper advocates a secondary level of investigation based on a cluster analysis to resolve a more complete range of coastal behaviours. Cluster-based segmentation of shoreline behaviour is demonstrated with reference to a regional-scale case study of the Suffolk coast, eastern UK. An exceptionally comprehensive suite of shoreline datasets covering the period 1881 to 2015 is used to examine both centennial- and intra-decadal scale change in shoreline position. Analysis of shoreline position changes at a 100 m alongshore interval along 74 km of coastline reveals a number of distinct behaviours. The suite of behaviours varies with the timescale of analysis. There is little evidence of regionally coherent shoreline change. Rather, the analyses reveal a complex interaction between met-ocean forcing, inherited geological and geomorphological controls, and evolving anthropogenic intervention that drives changing foci of erosion and deposition.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Geomorphology - Volume 282, 1 April 2017, Pages 131-149
نویسندگان
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