Wave Chronology Effects on Long-Term Shoreline Erosion Predictions
Wave Chronology Effects on Long-Term Shoreline Erosion Predictions
复制标题
波浪年代学对长期海岸线侵蚀预测的影响
DOI：
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
Huixin Chen
中科院分区：
文献类型：
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作者：
P. Dong;Huixin Chen
本说明使用最近开发的数值模型对关键海岸线侵蚀统计数据的年代效应进行了一些初步分析。一个16年的后报波数据集从英格兰东海岸被用作输入到模型中，并进行了模拟，为4年的数据子集。通过比较使用一些替代方法产生的输入波时间序列的预测，波浪气候统计和波浪排序对海岸线侵蚀预测的影响进行了澄清。计算结果表明，海岸线的演变主要是一个波浪气候依赖的过程，短期和长期。还发现，长期波浪年表对海岸线侵蚀统计数据的影响预测的方法产生的输入波的时间序列，只要长岸和跨岸衰退有明显不同的时间尺度，可以单独评估的影响不大。
This note presents some initial analysis of the chronology effect on critical shoreline erosion statistics using a recently developed numerical model. A 16-year hindcast wave data set from the East Coast of England was used as input to the model, and simulations were carried out for a 4-year subset of the data. By comparing predictions obtained using a number of alternative methods to generate the input-wave time series, the influence of wave climate statistics and wave sequencing on shoreline erosion predictions were clarified. The computational results have shown that the shoreline evolution was primarily a wave-climate-dependent process for both short and long terms. It was also found that the prediction of the long-term wave chronology effect on the shoreline erosion statistics is affected little by the methods used to generate the input-wave time series as long as the long-shore and cross-shore recessions have distinctly different time scales and can be evaluated separately.