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Vsw and B_z: Vsw is the 30-minute average magnitude of the solar-wind velocity in GSM coordintates. B_z is the 30-minute average of the north-south component of the solar-wind magnetic field in GSM coordinates. The V_sw data were averaged from 64-second data, while B_z was averaged from four-minute data. The (Level 2) data were obtained from the Caltech ACE page. Related Links and Publications dB/dt_02: This was described in Weigel et al., 2002; the model predicts the 30-minute averaged |dB/dt| at spatial locations between 57 and 76 degrees GCM latitude at all local times. The inputs to the model are the 30-minute averaged values of Bz (IMF) and Vx from the L1 point. Related Links and Publications |
Solar-wind velocity measurements
OMNIWeb
B and dB/dt Measurements
IMAGE magnetometer array |
dB/dt_02:
- Weigel, R.S., D. Vassiliadis, and A.J. Klimas, Coupling of the solar wind to temporal fluctuations in ground magnetic fields, GRL, Vol. 29, 19, 1915, doi:10.1029/2002GL014740, 2002. |