Physics
Scientific paper
May 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agusmsa52b..05g&link_type=abstract
American Geophysical Union, Spring Meeting 2002, abstract #SA52B-05
Physics
2712 Electric Fields (2411), 2736 Magnetosphere/Ionosphere Interactions, 2411 Electric Fields (2712), 2427 Ionosphere/Atmosphere Interactions (0335)
Scientific paper
The SuperDARN radar network is one of several ground-based instruments that are being used to support the objectives of the TIMED Mission. SuperDARN consists of 15 similar radars in the high-latitude regions of the Northern and Southern Hemispheres, which are capable of measuring plasma convection over large spatial regions and deriving estimates of the cross-polar-cap electrical potential. The radars are inherently capable of making these potential determinations on time scales of 1-2 minutes and for certain UT intervals, when the radars span the dawn and dusk convection cells, the potential determinations can be quite accurate. A special data set has been derived from the SuperDARN data base to support TIMED/CEDAR collaborations. This data set has a temporal resolution of 10 minutes for the full duration of the TIMED mission and is available on the SuperDARN web site at superdarn.jhuapl.edu. Preliminary analysis of the temporal variability of the cross-polar-cap potential in the SuperDARN TIMED/CEDAR data set shows several interesting features. In particular, the cross-polar-cap potential often exhibits large short-lived (30 minute) enhancements that should have a significant impact on Joule heating within the ionosphere and momentum transfer between the ionized and neutral consitiuents of the ionosphere/thermosphere region. In this paper, we present examples of these short-lived potential enhancements and discuss their association with solar wind conditions and the state of the magnetosphere. We also consider their impact on high-latitude neutral winds.
Greenwald Ray A.
Ruohoniemi Michael J.
No associations
LandOfFree
Temporal Variability of the Cross-Polar-Cap Electrical Potential 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 Temporal Variability of the Cross-Polar-Cap Electrical Potential, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temporal Variability of the Cross-Polar-Cap Electrical Potential will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1722932