Data Access
This movie illustrates the development of the vertical component of magnetic field in the neutral surface. At the
start of the movie, the field is everywhere quite weak, even in the flow channels. By 04:11 UT, the fast flow compresses the
magnetic field ahead of it turning a narrow region to reddish brown. Similar compression appears at 04:32 UT as the extended
narrow flow channel begins to form. Shortly later, the region encompassing the THEMIS orbits begins to turn continuously red
indicating the accumulation of magnetic flux in the region. By 04:44 UT, the single flow channel continues to deliver magnetic
flux to this region. As shown in the text, this is the time identified as expansion onset when tail field rotates to a more
dipolar configuration. Contours of Vx = 250 km/s are denoted by heavy black lines. Heavy black and white lines at >10 Re
pre-midnight depict the location of THEMIS spacecraft. A dashed black semi-circle defines synchronous orbit. White lines are
contours of plasma pressure. The Earth is a green half-circular patch.
Version:2.3.1
This movie illustrates the development of the vertical component of magnetic field in the neutral surface. At the
start of the movie, the field is everywhere quite weak, even in the flow channels. By 04:11 UT, the fast flow compresses the
magnetic field ahead of it turning a narrow region to reddish brown. Similar compression appears at 04:32 UT as the extended
narrow flow channel begins to form. Shortly later, the region encompassing the THEMIS orbits begins to turn continuously red
indicating the accumulation of magnetic flux in the region. By 04:44 UT, the single flow channel continues to deliver magnetic
flux to this region. As shown in the text, this is the time identified as expansion onset when tail field rotates to a more
dipolar configuration. Contours of Vx = 250 km/s are denoted by heavy black lines. Heavy black and white lines at >10 Re
pre-midnight depict the location of THEMIS spacecraft. A dashed black semi-circle defines synchronous orbit. White lines are
contours of plasma pressure. The Earth is a green half-circular patch.
| Role | Person | StartDate | StopDate | Note | |
|---|---|---|---|---|---|
| 1. | GeneralContact | spase://SMWG/Person/Robert.L.McPherron | |||
| 2. | MetadataContact | spase://SMWG/Person/James.M.Weygand |
Supplimentary movies for JGR publication
Virtual Magnetospheric Observatory
Two dimensional display of this movie of the GSM X component of position is on the original.
Each image is 3840 pixels by 1890 pixels and there are 360 frames in the movie.
Two dimensional display of this movie of the GSM Y component of position is on the original.
Each image is 3840 pixels by 1890 pixels and there are 360 frames in the movie.
Two dimensional display of this movie of the GSM Z component of magnetic field is on the original, not interpolated grid.
Each image is 3840 pixels by 1890 pixels and there are 360 frames in the movie.
Two dimensional display of this movie of the GSM plasma flow velocity interpolated grid.
Each image is 3840 pixels by 1890 pixels and there are 360 frames in the movie.