Substorm Onsets and Phases (SOPHIE) 2010-2020, EPT 75

Outputs from the SOPHIE (Forsyth et al., 2015, 10.1002/2015JA021343) substorm onset and phase detection technique for SuperMAG data between 2010 and 2020 (inclusive).

This version has been updated in to include the MLT and MLAT of the SuperMAG station providing the SML data

This file provides the start times of growth/energy input, expansion and recovery phases determined by SOPHIE for an EPT of 75.

Data generated for "Extreme Birkeland currents are more likely during geomagnetic storms on the dayside of the Earth" by Coxon et al., submitted to J. Geophys. Res.

The data is presented in 5 columns: -
The date and time of the first data point in the given phase (YYYY/MM/DD-HH:MM:SS)
The phase number (1 for growth/energy input, 2 for expansion, 3 for recovery)
A flag indicating that the rate of change of SMU is similar to that of SML in the expansion phase (0 for no flag, 1 for flag)
MLT of the active SML station at the shown time
MLAT of the active SML station at the shown time

The original SuperMAG indices can be downloaded from https://supermag.jhuapl.edu/

SOPHIE（Forsyth 等，2015，10.1002/2015JA021343）子暴发生和相位检测技术针对2010至2020年（含）SuperMAG数据的输出。本版本已更新，包括提供SML数据的SuperMAG站点的MLT和MLAT。该文件提供了由SOPHIE确定的75个EPT的增长/能量输入、扩张和恢复阶段的起始时间。为Coxon等人在《地球物理研究杂志》上提交的“极端比克伦场电流在地球午侧的地磁暴期间更可能出现”一文生成数据。数据以5列呈现：

- 给定阶段首次数据点的日期和时间（YYYY/MM/DD-HH:MM:SS）
- 阶段编号（1为增长/能量输入，2为扩张，3为恢复）
- 一个标志，表示SMU变化率在扩张阶段与SML相似（0为无标志，1为标志）
- 所示时间的活动SML站点的MLT
- 所示时间的活动SML站点的MLAT

原始SuperMAG指数可从https://supermag.jhuapl.edu/下载。