Dataset for "Satellite reentry predictions during Sudden Stratospheric Warmings" in Space Weather

The NetCDF files contain global 4-D (time, height, latitude, longitude) neutral mass density fields (rho, in kg m⁻³) from SD-WACCMX simulations for 2009 and 2023. Each file covers January 1–February 28, including the SSW period, with hourly resolution and 46 vertical levels (110-200 km). The data capture the modeled thermospheric response to SSW-related lower-atmosphere forcing and are used to assess density variations relevant to satellite reentry.本数据集采用网络通用数据格式（NetCDF）存储，包含由SD-WACCMX模式模拟的2009年与2023年全球四维（时间、高度、纬度、经度）中性质量密度场（rho，单位：kg·m⁻³）。每个文件覆盖1月1日至2月28日的时段，涵盖平流层突然增温（SSW）事件期，数据采用逐小时分辨率，共设置46个垂直层次，垂直覆盖范围为110至200公里。该数据集捕捉了模式模拟的热层对平流层突然增温相关低层大气强迫的响应，可用于评估与卫星再入相关的大气密度变化。