Crescent City, California Tsunami Forecast Grids for MOST Model

The Crescent City, California Forecast Model Grids provides bathymetric data strictly for tsunami inundation modeling with the Method of Splitting Tsunami (MOST) model. MOST is a suite of numerical simulation codes capable of simulating three processes of tsunami evolution: generation, transoceanic propagation, and inundation of dry land. Tsunami waves are computationally propagated across a set of three nested grids (A, B, and C), each of which is successively finer in resolution, moving from offshore to onshore. Nearshore details are resolved to the point that model output can be directly compared with tide gauge observations and can provide estimates of wave arrival time, wave amplitude and simulation of wave inundation onto dry land. A Grid Resolution: 72 arc-sec. B Grid Resolution: 12 arc-sec. C Grid Resolution: 2 arc-sec.

加州Crescent City预报模型网格数据集提供的地形数据（bathymetric data）严格用于采用海啸分裂法（Method of Splitting Tsunami，MOST）模型进行的海啸淹没模拟。MOST是一套数值模拟代码，能够模拟海啸演化的三个过程：生成、越洋传播及陆地淹没。海啸波通过计算在三组嵌套网格（A、B、C）上传播，这些网格从近海到岸线的分辨率依次提高。近岸细节的解析精度足以使模型输出直接与验潮仪观测数据对比，并能提供波到达时间、波幅的估算以及陆地淹没的模拟结果。A网格分辨率：72角秒；B网格分辨率：12角秒；C网格分辨率：2角秒。