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首页> 外文期刊>South African Journal of Geology: Being the Transaction of the Geological Society of South African: Syndie die Verhandelinge van die Geologiese Vereniging van Suid-Afrika >Empiric method to infer sea level curve in time domain from shoreline trajectory in space domain using cross-sections through a deltaic system
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Empiric method to infer sea level curve in time domain from shoreline trajectory in space domain using cross-sections through a deltaic system

机译：通过横截面通过横截面通过横截面通过横截面从空间轨迹在时域在时域中推断海平面曲线的经验方法

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摘要

Depositional events at the shoreline can be considered non-uniformly spaced samples of (relative) sea level; the shoreline trajectory constructed from shoreline positions in a cross-section through a delta can therefore be considered a proxy to the sea level curve. The problem is that depositional events are stacked on top of each other in the space domain and in order to infer the sea level curve, one must convert the shoreline trajectory from space- to time-domain. Therefore a method is presented that does exactly that. Shoreline trajectories from a number of cross-sections are used to infer the sea level curve, for two cases: (1) the sea level curve is periodic; (2) depositional events are sufficiently frequent. Here the concept is presented, together with a qualitative analysis of all possible deviations from the simple cases that would cause an error of the inferred sea level curve with respect to the true sea level curve. In this short note the concept of the method is presented; a comprehensive analysis will be presented elsewhere, which will follow after processing of the data from experiments that were conducted in the Eurotank flume facility.
机译：海岸线的沉积事件可被认为是非均匀间隔的（相对）海平面的样品;因此，从横截面穿过三角形的海岸线位置构成的海岸线轨迹可以被认为是海平曲线的代理。问题在于，沉积事件在空间域中彼此堆叠，并且为了推断海平曲线，必须将海岸线轨迹从空间到时域转换。因此，提出了一种方法，该方法确实如此。来自许多横截面的海岸线轨迹用于推断海平曲线，两种情况：（1）海平曲线是周期性的; （2）沉积事件足够频繁。这里呈现该概念，以及对来自简单情况的所有可能偏差的定性分析，这将导致推断的海平面曲线相对于真正的海平曲线的误差。在此简单说明中，提出了该方法的概念;综合分析将在其他地方提出，这将在从Eurotank Flume设施中进行的实验中处理数据后遵循。

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