Vertical fields of temperature, salinity, and currents down to 100m from the GoM-HYCOM 1/50 NoRiver simulation for two periods, 2010-05-20 to 2010-05-27 and 2010-07-02 to 2010-07-10

The dataset is based on archives from the University of Miami’s high-resolution (1/50 degrees, 1.8 km) configuration of the Hybrid Coordinate Ocean Model (HYCOM) in the Gulf of Mexico (GoM-HYCOM 1/50) for two periods: 20-27 May and 2-10 July 2010. The GoM-HYCOM 1/50 used realistic river forcing parameterization developed by Schiller and Kourafalou (2010). The river discharge data used for the river forcing was obtained from the Army Corps of Engineers and the U.S. Geological Survey (USGS). Atmospheric forcing was obtained from the European Centre for Medium-Range Weather Forecasts (ECMWF) at 0.125-degree spatial resolution and it is nested at the open boundaries using the Global HYCOM expt_90.8. The model assimilated satellite observations of sea surface temperature and sea surface height, and in situ observations of temperature and salinity. The GoM-HYCOM 1/50 gives details on the fronts and filaments associated with the Mississippi River plume dynamics, as well as GoM mesoscale processes relevant to this study (in particular the Loop Current frontal dynamics and their influence on plume transport). The dataset includes the vertical fields of temperature, salinity and currents down to 100m with 6 levels at 0, 5, 10, 20, 50 and 100m from the GoM 1/50 NoRiver simulation, which is particularly tailored to be used in the OpenDrift trajectory modeling frame as a process-oriented simulation to study the effect of oil droplet size distribution and river fronts. This dataset supports the publication: Hole, L. R., Dagestad, K.-F., Röhrs, J., Wettre, C., Kourafalou, V. H., Androulidakis, I., Le Hénaff, M., Kang, H., and Garcia-Pineda, O. (2018). Revisiting the DeepWater Horizon spill: High resolution model simulations of effects of oil droplet size distribution and river fronts. Ocean Science Discussions, 1–20. doi:10.5194/os-2018-130本数据集基于迈阿密大学（University of Miami）墨西哥湾区域混合坐标海洋模式（Hybrid Coordinate Ocean Model, HYCOM）存档的高分辨率（1/50度，约1.8公里）配置数据集（GoM-HYCOM 1/50），选取两个研究时段：2010年5月20日至27日，以及2010年7月2日至10日。GoM-HYCOM 1/50采用了Schiller与Kourafalou（2010）开发的真实河流强迫参数化方案。用于河流强迫的径流量数据取自美国陆军工程兵团与美国地质调查局（U.S. Geological Survey, USGS）。大气强迫数据取自欧洲中期天气预报中心（European Centre for Medium-Range Weather Forecasts, ECMWF），空间分辨率为0.125度，并通过全球HYCOM试验expt_90.8在开放边界处实现嵌套。该模式同化了海表温度与海表高度的卫星观测数据，以及温度、盐度的原位观测数据。GoM-HYCOM 1/50可细致呈现与密西西比河羽流动力学相关的锋面与丝状体结构，同时涵盖本研究相关的墨西哥湾中尺度过程——尤其是环流锋面动力学及其对羽流输运的影响。本数据集包含来自GoM 1/50无河流模拟（NoRiver simulation）的温度、盐度与流场垂直场数据，垂向深度覆盖至100米，共设6个分层：0米、5米、10米、20米、50米与100米。该模拟专为OpenDrift轨迹建模框架设计，作为面向过程的模拟，用于探究油滴粒径分布与河流锋面的影响。本数据集支撑以下已发表成果：Hole, L. R., Dagestad, K.-F., Röhrs, J., Wettre, C., Kourafalou, V. H., Androulidakis, I., Le Hénaff, M., Kang, H., 以及Garcia-Pineda, O.（2018）。《重温深水地平线漏油事件：油滴粒径分布与河流锋面影响的高分辨率模式模拟》，《海洋科学讨论（Ocean Science Discussions）》，1–20。doi:10.5194/os-2018-130