Dependence of Dayside Field-Aligned Currents on the Ionospheric Conductivity: Statistical Study With DMSP-F7 Data

Details Dependence of Dayside Field-Aligned Currents on the Ionospheric Conductivity: Statistical Study With DMSP-F7 Data Dependence of Dayside Field-Aligned Currents on the Ionospheric Conductivity: Statistical Study With DMSP-F7 Data

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agufmsm12a0483h&link_type=abstract

American Geophysical Union, Fall Meeting 2002, abstract #SM12A-0483

Other

2400 Ionosphere, 2455 Particle Precipitation, 2708 Current Systems (2409), 2730 Magnetosphere: Inner, 2736 Magnetosphere/Ionosphere Interactions

Scientific paper

Large-scale field-aligned currents (FACs) are classified into three systems, that is, Region 2 (R2), Region 1 (R1), and Region 0 (R0) systems from equatorward to poleward. Fujii and Iijima (1987) examined R1 and R2 currents at MLT = 4-10 and 14-20 under geomagnetically quiet conditions and found that the intensities of R1 and R2 currents depend on the ionospheric conductivity in different ways. The intensity of R1 currents is strongly controlled by the ionospheric conductivity, but that of R2 currents is not. They concluded that the R1 system is driven by a voltage source, whereas the R2 system is driven by a combination of voltage and current sources. In the present study we have used the summary data of DMSP-F7 developed through the procedure of Higuchi and Ohtani (2000), and extended the study of Fujii and Iijima (1987) by examining currents in other MLT ranges, mainly in the midday sector. In addition, we have also examined the R0 system. The results indicate that R1 and R0 are driven by a more voltage-like source than R2 in the midday region. It is also inferred that R1 and R0 are driven by the same mechanism as Ohtani et al. 1995 suggested.

Affiliated with

Also associated with

No associations

Rating

Dependence of Dayside Field-Aligned Currents on the Ionospheric Conductivity: Statistical Study With DMSP-F7 Data does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Dependence of Dayside Field-Aligned Currents on the Ionospheric Conductivity: Statistical Study With DMSP-F7 Data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dependence of Dayside Field-Aligned Currents on the Ionospheric Conductivity: Statistical Study With DMSP-F7 Data will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1438289