Electron Density Gradients associated with Sudden Stratospheric Warmings

Physics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

[2427] Ionosphere / Ionosphere/Atmosphere Interactions, [2435] Ionosphere / Ionospheric Disturbances, [2437] Ionosphere / Ionospheric Dynamics

Scientific paper

Electron density gradients can impact a variety of communication and navigation systems. During geomagnetic storms, they are responsible for degraded positioning accuracies of global navigation services systems (GNSS). Their impacts can be especially severe for services that depend on real-time, high precision GPS positioning. Large electron density gradients have frequently been associated with solar and geomagnetic drivers, which couple the ionosphere with the magnetosphere and heliosphere. Here we will discuss smaller scale electron gradients that are produced through processes that couple the ionosphere to the lower atmosphere. Specifically we will describe the variations in electron density that we have observed in the low-latitude ionosphere several days after periods of high-latitude stratospheric sudden warmings. These low-latitude variations have a well pronounced semidiurnal character. In the morning, a 50-100% increase in electron density over the background mean was observed, followed by a ~50% suppression in electron density in the afternoon. Also associated with these sudden stratospheric warming events are large electron density gradients in the equatorial region during pre-dawn periods. Finally, we will describe the enhancement and variation of electron density fluctuations observed in the European and North American mid-latitudes during periods of stratospheric warmings.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Electron Density Gradients associated with Sudden Stratospheric Warmings 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 Electron Density Gradients associated with Sudden Stratospheric Warmings, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electron Density Gradients associated with Sudden Stratospheric Warmings will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1780322

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.