XBeach Bottom Friction Scenarios: Model Inputs and Results for Hurricane Katrina Constant Land Friction Scenario

Using the numerical model XBeach version 4926 (Roelvink and others, 2009), various bottom friction scenarios were simulated for hurricanes Ivan (2004) and Katrina (2005) at Dauphin Island, Alabama as described in Passeri and others, 2018. The XBeach model setup requires the input of a merged topographic and bathymetric digital elevation model (DEM), and inputs of wave spectra (based on significant wave height, peak wave period and wave direction) and water level (tide and surge) time series. Model inputs and outputs in the form of topography and bathymetry are provided in this data release. For further information regarding model input generation and visualization of model output topography and bathymetry, refer to Passeri and others, 2018.

本研究采用数值模型XBeach 4926版本（Roelvink等，2009），按照Passeri等人2018年的研究方法，针对美国阿拉巴马州多芬岛（Dauphin Island）的2004年伊万飓风（Hurricane Ivan）与2005年卡特里娜飓风（Hurricane Katrina）事件，模拟了多种底摩擦情景。XBeach模型的配置需输入融合地形与水深的数字高程模型（digital elevation model, DEM），同时还需输入基于有效波高、峰值波周期与波向的波谱数据，以及包含潮汐与风暴潮的水位时间序列数据。本次数据发布包含该模型以地形与水深形式呈现的输入与输出数据。若需了解模型输入数据生成方法，以及模型输出地形与水深数据的可视化手段，请参考Passeri等人2018年的研究成果。