1. 1. AGO6 is NOT deep in the Polar Cap KevinUrban,NJIT,2015-June-09
2. 2. Median Total PowerSite Glat Glon CGMlat CGMlon UT-MLT SPA S90.00 E00.00 S74.02 E18.35 3:35 MCM S77.85 E166.67 S79.94 E326.97 6:57 AGO6 S69.51 E130.03 S85.92 E215.39 14:26 AGO5 S77.24 E123.52 S86.74 E29.46 2:52 AGO5 & AGO6 rst surprise by their joint UT dependence
3. 3. This is just a matter of geometry, really.
4. 4. Total power is UT-dependent, but ULF activity is generally MLT- dependent
5. 5. Median Pc4 PowerSite Glat Glon CGMlat CGMlon UT-MLT SPA S90.00 E00.00 S74.02 E18.35 3:35 MCM S77.85 E166.67 S79.94 E326.97 6:57 AGO6 S69.51 E130.03 S85.92 E215.39 14:26 AGO5 S77.24 E123.52 S86.74 E29.46 2:52
6. 6. Median Pc5 PowerSite Glat Glon CGMlat CGMlon UT-MLT SPA S90.00 E00.00 S74.02 E18.35 3:35 MCM S77.85 E166.67 S79.94 E326.97 6:57 AGO6 S69.51 E130.03 S85.92 E215.39 14:26 AGO5 S77.24 E123.52 S86.74 E29.46 2:52
7. 7. Median Pc6 PowerSite Glat Glon CGMlat CGMlon UT-MLT SPA S90.00 E00.00 S74.02 E18.35 3:35 MCM S77.85 E166.67 S79.94 E326.97 6:57 AGO6 S69.51 E130.03 S85.92 E215.39 14:26 AGO5 S77.24 E123.52 S86.74 E29.46 2:52
8. 8. Mean Power in Pc4-6 BandsSite Glat Glon CGMlat CGMlon UT-MLT SPA S90.00 E00.00 S74.02 E18.35 3:35 MCM S77.85 E166.67 S79.94 E326.97 6:57 AGO6 S69.51 E130.03 S85.92 E215.39 14:26 AGO5 S77.24 E123.52 S86.74 E29.46 2:52
9. 9. Total power is UT-dependent, but ULF activity is generally MLT-dependent AGO5 is the only unique polar cap magnetometer Since AGO5 and AGO6 are supposedly at about the same geomagnetic latitude according to IGRF / CGM, we can conjecture two things:" (1) The models wrongly depict the latitude of the highest-latitude sites" (2) Either the deepest polar cap sites simply have distinct ULF proles relative to the peripheral polar cap sites, or the peripheral polar cap sites are not truly on open eld lines as thought, but nominally rest on extremely stretched, closed eld lines CONCLUSIONS