On determining the noon polar cap boundary from SuperDARN HF radar backscatter characteristics
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211 citations
Cites background or methods from "On determining the noon polar cap b..."
...Pinnock and Rodger (2001) had four radars at their disposal, and consequently, a greater proportion of the merging gap was imaged....
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...On the dayside, Baker et al. (1997) and Pinnock and Rodger (2001) used SuperDARN observations to estimate the dayside reconnection voltage, employing the spectral width boundary as an estimate of the location of the OCB....
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Cites background from "On determining the noon polar cap b..."
...The boundaries of the auroral oval can be determined locally by ground-based observations such as radars (Pinnock and Rodger, 2000; Moen et al., 2004; Aikio et al., 2006) or low-altitude satellite observations (Newell et al., 1996; Wang et al., 2005), while optical imagers from high-altitude…...
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53 citations
Cites background or methods from "On determining the noon polar cap b..."
...This is the general approach used by Baker et al. (1997), Pinnock et al. (1999), Pinnock and Rodger (2001), and Chisham et al. (2001)....
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...Pinnock and Rodger (2001) excluded all backscatter with spectral widths less than 150 m/s from a composite of scans from 4 SuperDARN radars and then smoothed the remaining equatorward backscatter boundary to obtain their estimate of the boundary....
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References
26 citations
"On determining the noon polar cap b..." refers background or methods in this paper
...Taking account of the typical tilt angles reported by Baker et al. (1997) and Pinnock et al. (1999) for the Northern Hemisphere, we estimate that the maximum error in their E rec values would be 15%....
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...Our ®ndings support the suggestion of Rodger (2000) in that a bay-like feature is found to exist in the cusp radar scatter....
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...These angles are very similar to those reported in the previous paper for the Northern Hemisphere radar but larger than the Southern Hemisphere results....
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...Rodger (2000) suggested that the longitudinal variation of the poleward ¯ow component in the throat ¯ow region would result in a characteristic bay-like feature, with the cusp radar backscatter displaced the greatest distance poleward where the poleward ¯ow component maximises....
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...The upper and lower patterns are for By < 0 and By > 0 in the Northern Hemisphere (Rodger, 2000) observed at Wind at 14:36:38 UT and at IMP-8 at 15:09:18 UT, and the ionospheric response is seen at 15:20:06....
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