Observations of the Tongue of Ionization with GPS TEC and SuperDARN in the Antarctic

Details Observations of the Tongue of Ionization with GPS TEC and SuperDARN in the Antarctic Observations of the Tongue of Ionization with GPS TEC and SuperDARN in the Antarctic

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsa51a1927c&link_type=abstract

American Geophysical Union, Fall Meeting 2011, abstract #SA51A-1927

Physics

[2407] Ionosphere / Auroral Ionosphere, [2435] Ionosphere / Ionospheric Disturbances, [2437] Ionosphere / Ionospheric Dynamics, [2441] Ionosphere / Ionospheric Storms

Scientific paper

Tongue of ionization (TOI) events in both the northern and southern hemisphere have been identified with polar maps of total electron content (TEC) derived from the global network of GPS receivers. The TOI, as observed by GPS, extends through the dayside cusp, across the polar cap to the nightside, in both hemispheres. The TOI is a source of ionospheric irregularities and its distribution across the high latitude ionosphere is controlled by plasma convection. In the northern hemisphere, GPS maps show the development of TOI from mid-latitude plumes of ionization known as storm enhanced density (SED). The SED feature is observed to be magnetically conjugate, although data coverage is considerably more sparse in the southern hemisphere. In this talk, the focus is on southern hemisphere TOI observations using GPS and COSMIC TEC polar plots overlaid onto SuperDARN HF radar observations of the high-latitude convection pattern. Solar minimum and solar maximum TOI observations are compared, and the locations where HF scatter is observed in the presence of TOI plumes are examined. We explore the similarities between TOI events observed simultaneously in the two hemispheres and look especially for the impact of convection-induced asymmetries. Gradients, irregularities, and velocities are examined between the two hemispheres.

Affiliated with

Also associated with

No associations

Rating

Observations of the Tongue of Ionization with GPS TEC and SuperDARN in the Antarctic 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 Observations of the Tongue of Ionization with GPS TEC and SuperDARN in the Antarctic, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observations of the Tongue of Ionization with GPS TEC and SuperDARN in the Antarctic will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-875525