Spatial and temporal scales of shoreline morphodynamics derived from video camera observations for the island of Sylt, German Wadden Sea
Spatial and temporal scales of shoreline morphodynamics derived from video camera observations for the island of Sylt, German Wadden Sea
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来自德国瓦登海叙尔特岛摄像机观测的海岸线形态动力学的时空尺度
DOI:
10.1007/s00367-016-0461-7
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发表时间:
2017
影响因子:
2.1
通讯作者:
Winter
中科院分区:
文献类型:
--
作者:
Blossier;Winter
Spatial and temporal scales of beach morphodynamics were assessed for the island of Sylt, German Wadden Sea, based on continuous video camera monitoring data from 2011 to 2014 along a 1.3 km stretch of sandy beach. They served to quantify, at this location, the amount of shoreline variability covered by beach monitoring schemes, depending on the time interval and alongshore resolution of the surveys. Correlation methods, used to quantify the alongshore spatial scales of shoreline undulations, were combined with semi-empirical modelling and spectral analyses of shoreline temporal fluctuations. The data demonstrate that an alongshore resolution of 150 m and a monthly survey time interval capture 70% of the kilometre-scale shoreline variability over the 2011–2014 study period. An alongshore spacing of 10 m and a survey time interval of 5 days would be required to monitor 95% variance of the shoreline temporal fluctuations with steps of 5% changes in variance over space. Although monitoring strategies such as land or airborne surveying are reliable methods of data collection, video camera deployment remains the cheapest technique providing the high spatiotemporal resolution required to monitor subkilometre-scale morphodynamic processes involving, for example, small- to middle-sized beach nourishment.
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影响因子:
0.8
作者:
K. Bryan;R. Foster;Iain T. MacDonald
通讯作者:
Iain T. MacDonald
影响因子:
1.1
作者:
K. Ahrendt
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K. Ahrendt
DOI:
--
发表时间:
2015
期刊:
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作者:
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通讯作者:
O. D. Vinent;L. Moore
DOI:
--
发表时间:
1996
期刊:
影响因子:
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作者:
K. Ahrendt;R. Koster
通讯作者:
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