A topological pattern research on recent evolution of sand spit at the Huanghe River mouth by using remote sensing informations

摘要

By using satellite remote sensing informations, the conceptual system of time-space at- tributes and time dimension in recent evolution of the sand spit at the Huanghe River mouth is expound- ed. Based on this work, The parameterization of relevant factors and topological analysis of sand spit spa- tial structure are conducted, and a model, which is suitable for representing the development and growth of the Huanghe River mouth is developed. It is shown that during the later stage of its development, the sand spit growth index is almost 0.