Abstract

A sand spit is a deposition of sediments built up and diverging from the coast. The spit can be beneficial or create problems. Understanding and being able to forecast its evolution is the key to maximizing its advantages and minimizing its drawbacks. Along the southern Gulf of Thailand, there are 3 major sand spits, being Laem Talumpuk spit, Laem Sui spit, and Laem Tachi spit. Each individual spit’s evolution was investigated by overlaying satellite images gathered from the U.S. Geological Survey and Google Earth. Five types of equations for their evolution were tested to determine the best-fitting relationships. Although it was found that different spit characteristics followed different types of expression, polynomial equations seemed to provide satisfactory coefficients of determination for all spits in the study. Each individual spit’s length, size, and orientation could be predicted by the derived relationships. Finally, proper spit managements such as dredging, community livelihood adaptation, economic development, and even tourism promotion can be planned.

摘要

沙嘴是沉积物的沉积物，沉积物堆积并从海岸发散。吐痰可能是有益的，也可能会造成问题。了解并能够预测其演变是最大化其优势并最小化其缺点的关键。沿着泰国湾南部，有 3 个主要的沙嘴，分别是 Laem Talumpuk 沙嘴、Laem Sui 沙嘴和 Laem Tachi 沙嘴。通过叠加从美国地质调查局和谷歌地球收集的卫星图像来研究每个吐痰的演变。测试了五种类型的演化方程以确定最佳拟合关系。尽管发现不同的吐出特征遵循不同的表达类型，多项式方程似乎为研究中的所有吐出提供了令人满意的确定系数。每个人吐的长度，大小和方向可以通过派生的关系来预测。最后，可以规划适当的吐痰管理，例如疏浚、社区生计适应、经济发展，甚至旅游推广。