Surface model fields of currents, temperature, salinity, and sea elevation from the GoM-HYCOM model (1/50 deg resolution) from 2014-01-01 to 2014-12-31

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 the year of 2014. 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_91.1. 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 surface model fields of temperature, salinity, currents and sea surface height from the GoM 1/50 at 1200Z.

数据集基于迈阿密大学2014年墨西哥湾混合坐标海洋模型（Hybrid Coordinate Ocean Model，HYCOM）的高分辨率（1/50度，1.8千米）配置存档（GoM-HYCOM 1/50）。GoM-HYCOM 1/50采用了Schiller和Kourafalou（2010）开发的真实河流强迫参数化（river forcing parameterization）方案。河流强迫所用的河流流量数据来自美国陆军工程兵团（Army Corps of Engineers）和美国地质调查局（U.S. Geological Survey，USGS）。大气强迫（Atmospheric forcing）数据来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实验expt_91.1在开边界处进行嵌套。该模型同化了海表温度和海表高度的卫星观测数据，以及温度和盐度的现场观测（in situ observations）数据。GoM-HYCOM 1/50提供了与密西西比河羽流动力学相关的锋面和细丝的详细信息，以及与本研究相关的墨西哥湾中尺度过程（特别是Loop Current锋面动力学及其对羽流输运的影响）。数据集包含GoM 1/50模型在世界时1200时的温度、盐度、海流和海表高度的表层场数据。