东南印度洋ROMS模拟数据集

该数据集是基于ROMS模式对东南印度洋海区进行1993-2016时间段的后报模拟，包括温盐流三维数据场，以及海表面高度场。数据的存储为10天平均值。模式的边界强迫场采用的日数据，1/12°的HYCOM再分析数据，大气强迫场采用的是3小时，0.75°的ERA-Interim数据。模拟区域覆盖大部分东南印度洋地区，东部与西澳大利亚海岸接壤，北部与爪哇岛接壤。空间上采用变化的水平分辨率，网格大小从澳大利亚西海岸附近的3千米扩大到大洋内部的12千米，可以较好的识别海洋中尺度涡旋。ROMS模式是一个30层的地形跟随的垂向坐标系统。对上层200m的垂直分辨率进行了加密，以更好地解决海表混合层过程。模式在模拟该区域的温盐流，以及海洋中尺度过程，表现出较好的模拟能力。该数据集以1999年3月16日为界分成2个时间段进行存储。

This dataset is a 1993–2016 retrospective simulation of the southeastern Indian Ocean based on the Regional Ocean Modeling System (ROMS), including three-dimensional temperature-salinity-current fields and sea surface height (SSH) fields. The data are stored as 10-day averages. The model's boundary forcing fields utilize daily HYCOM reanalysis data with a spatial resolution of 1/12°, while its atmospheric forcing fields adopt 3-hourly ERA-Interim data at a 0.75° spatial resolution. The simulation domain covers most of the southeastern Indian Ocean, bordering the Western Australian coast to the east and the island of Java to the north. It features variable horizontal spatial resolution, with grid sizes ranging from 3 km near the Western Australian coast to 12 km in the open ocean, enabling effective identification of ocean mesoscale eddies. The ROMS model employs a 30-layer terrain-following vertical coordinate system, with enhanced vertical resolution in the upper 200 m to better resolve sea surface mixed layer processes. The model demonstrates good simulation performance for temperature-salinity-current fields and ocean mesoscale processes in this region. This dataset is stored in two temporal segments divided by March 16, 1999.

搜集汇总

背景与挑战

背景概述

东南印度洋ROMS模拟数据集提供了1993-2016年间东南印度洋海区的温盐流和海表面高度数据，具有高时空分辨率（水平3km~12km，垂向30层），特别适合研究中尺度海洋过程。数据由ROMS模式生成，边界强迫采用HYCOM再分析数据和ERA-Interim大气数据，模拟能力良好。