Delta-X: Island and Secondary Channel Model, MRD, LA, USA, 2022

This dataset includes model code and output for a model that simulates changes in islands and small water channels of river delta systems in response to dynamics of sediment deposit, erosion, and changing water levels. Simulations demonstrate developmental cycles of secondary channels and how sediment dynamics can allow islands to build land vertically to keep pace with rising sea levels rather than passively drowning. The model was applied to the Mississippi River Delta as part of NASA's Delta-X project. Simulations were run for other river deltas, including the Amazon, Brahmputra, Danube, Magdalena, Nile, Orinoco, Parana, Rhine-Meuse, and Rhone rivers. The model code is provided in text format for MATLAB software. Files demonstrating initial model conditions and outputs are provided in binary MATLAB as well as NetCDF version 4 format.

本数据集囊括了模拟河流三角洲岛屿及小水道系统在沉积物沉积、侵蚀及水位变化动力学影响下发生变化的模型代码及其输出结果。模拟展示了次级河道的发展周期，以及沉积物动力学如何使得岛屿能够垂直增长以适应海平面上升，而非被动地被淹没。该模型作为美国国家航空航天局（NASA）Delta-X项目的一部分，应用于密西西比河三角洲。此外，该模型还对亚马逊河、布拉马普特拉河、多瑙河、马格达莱纳河、尼罗河、奥里诺科河、巴拉那河、莱茵-默兹河和罗讷河等河流三角洲进行了模拟。模型代码以文本格式提供，适用于MATLAB软件。同时，提供了初始模型条件和输出结果的二进制MATLAB文件以及NetCDF版本4格式的文件。