Physics
Scientific paper
Dec 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsm13b2081a&link_type=abstract
American Geophysical Union, Fall Meeting 2011, abstract #SM13B-2081
Physics
[2431] Ionosphere / Ionosphere/Magnetosphere Interactions, [2716] Magnetospheric Physics / Energetic Particles: Precipitating, [6969] Radio Science / Remote Sensing
Scientific paper
Lightning-induced electron precipitation (LEP) is one of the primary mechanisms for energetic electron loss from Earth's radiation belts. The spatial and temporal structure of LEP are affected by parameters such as lightning location and the return stroke peak current and spectral distribution. While previous works have emphasized lightning location and return stroke peak current in quantifying lightning's role in radiation belt electron loss, the spectrum of the lightning return stroke has received far less attention. Rocket-triggered lightning experiments performed at the International Center for Lightning Research and Testing (ICLRT) at Camp Blanding, Florida, provide a means to evaluate the spectral content of individual lightning return strokes. Using an integrated set of numerical models we calculate the latitudinal dependence of the precipitation signature using observed rocket-triggered lightning channel-base currents. Results indicate that return strokes with higher ELF (3 Hz - 3 kHz) content cause proportionally more ionospheric ionization and precipitate more electrons at higher latitudes than return strokes with higher VLF (3 kHz - 30 kHz) content. The ability to directly measure the channel-base current of the rocket-triggered lightning return stroke enables us to determine the relationship between lightning source spectrum and the removal of energetic electrons from the Earth's radiation belts and to predict the geographic location and magnitude of electron precipitation in both the northern and southern hemispheres.
Agrawal Dakshi
Cotts B.
Golkowski M.
Moore Robert C.
No associations
LandOfFree
Ionospheric effects of whistler waves from rocket-triggered lightning 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 Ionospheric effects of whistler waves from rocket-triggered lightning, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ionospheric effects of whistler waves from rocket-triggered lightning will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1889547