Measuring the shore platform width might be an effective way to measure the rate of coastal retreat. The processes controlling shore platforms are a highly debated topic throughout the coastal science community. Some researchers believe that marine processes control them and other researchers believe that physical weathering is responsible.This study determined the relationship between rock mass classification systems and shore platform widths as a diagnostic tool to predict the rate of recession. Testing took place along the Mahia Peninsula and Tatapouri on the East Coast of New Zealand. A Garmin eTrex hand-held GPS unit was used to map both the cliff base position and the edge boundary of the shore platform.Data analysis for Mahia Peninsula showed a linear relationship with a r2 value of 68% with a negative regression line. The data for Tatapouri showed that there was no linear relationship, but has an r2 value of 68% when a polynomial fit to the 2nd order was apply to the data (appendix). The estimated rate of erosion, ranges from 0.61 to 17.8 0.06 mm y-1 for Mahia Peninsula and 1.32 to 16.45 0.08 mm y-1 for Tatapouri.
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机译：测量海岸平台的宽度可能是衡量沿海撤退速度的有效方法。控制海岸平台的过程是整个沿海科学界争论不休的话题。一些研究人员认为海洋过程控制着它们，而其他研究人员则认为物理风化是负责任的。这项研究确定了岩体分类系统和岸台宽度之间的关系，作为预测衰退速率的诊断工具。测试在新西兰东海岸的马希亚半岛和塔塔普里进行。 Mahia半岛的数据分析显示Garia eTrex手持GPS单元既可以绘制悬崖的基础位置，也可以绘制海岸平台边缘的边界.r2值的线性关系为68％，带有负回归线。 Tatapouri的数据显示没有线性关系，但是当对数据应用二阶多项式拟合时，r2值为68％（附录）。马希亚半岛的估计侵蚀率范围从0.61至17.8 0.06 mm y-1，塔塔普里（Tatapouri）介于1.32至16.45 0.08 mm y-1。
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