Journal
GEOPHYSICAL RESEARCH LETTERS
Volume 30, Issue 5, Pages -Publisher
AMER GEOPHYSICAL UNION
DOI: 10.1029/2002GL016031
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[1] Recent analysis of high-resolution spectra of Doppler-shifted H(3)(+) emission from the auroral/polar regions of Jupiter revealed a complex wind system, with a persistent auroral electrojet and strong anti-sunward flows in a region of lesser intensity centred around the magnetic pole [Stallard et al., 2001]. This region, which we have called the Dark Polar Region (DPR), is re-investigated, trans forming the observed line-of-sight velocities into a frame of reference fixed with respect to the magnetic pole. The DPR is shown to include a region essentially stagnant in this frame of reference (the f-DPR). We identify it as a region coupled to open magnetotail field lines. There is also a transition region in which the ion velocity returns to corotation (the rDPR).
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