AMPERE GRD & IRD Data (2024-Jul)

2024-Jul AMPERE GRD and IRD data. AMPERE IRD files contain hemispheric delta-B observations in global coordinates (geographic and AACGM). Data are blocked into 10-minute 'chunks' at 2-minute resolution for use in the fitting algorithm. Measurements flagged 'bad' in the earlier processing are removed prior to entry in IRD. AMPERE GRD files contain hemispheric delta-B and Birkeland current fits at 2-minute resolution.2024年7月的AMPERE GRD与IRD数据集。 AMPERE IRD 文件包含全球坐标系（地理坐标系与AACGM坐标系）下的半球delta-B观测数据。为适配拟合算法的应用需求，该数据集以2分钟的时间分辨率被切分为若干10分钟时长的数据块。在前期处理流程中被标记为‘无效’的观测数据，在录入IRD文件前已完成剔除。 AMPERE GRD 文件包含2分钟时间分辨率下的半球delta-B数据与毕尔克电流（Birkeland current）拟合结果。