Physical Variables used in Timeline Plots
The basic plasma and electrodynamic field variables are:
Cross Polar Cap Potential and DST Index Timeline
- Cross polar cap potential in Northern hemisphere CPCP_N in kV
- Cross polar cap potential in Southern hemisphere CPCP_S in kV
- DST index DST in nT
Polar Cap Area
- Polar cap area PC_area in m2
- Polar cap flux PC_flux in 109Wb
- Magnetopause standoff distance at noon local time mpnose in Re
- Minimum distance of magnetopause from Earth within 30 degrees from the Sun-Earth line (10 AM to 2 PM local time sector) rmin in Re
- Local time at closest distance of magnetopause from Earth (rmin)lt_at_rmin in hr
Variable names below have a "_N" or "_S" attached:
_N: computed for northern hemisphere
_S: computed for southern hemisphere
- JrPHI in GW - Joule heating computed radial currents Jr and electric potential PHI
- I in MA - Radial current flowing into one hemisphere (all Jr > 0 integrated over hemisphere)
- Dphi in kV - maximum(PHI)-minimum(PHI) in hemisphere
- Theta in degrees - dipole tilt angle from Z-axis in GSM coordinates
- Extent of Northern Polar Cap Area at 24 magnetic local times colat_?? in deg, with ?? from 0 to 23
