Detection and modeling of the acoustic perturbation produced by the launch of the Space Shuttle using the Global Positioning System

Details Detection and modeling of the acoustic perturbation produced by the launch of the Space Shuttle using the Global Positioning System Detection and modeling of the acoustic perturbation produced by the launch of the Space Shuttle using the Global Positioning System

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsa51e..04b&link_type=abstract

American Geophysical Union, Fall Meeting 2010, abstract #SA51E-04

Physics

[1220] Geodesy And Gravity / Atmosphere Monitoring With Geodetic Techniques, [2487] Ionosphere / Wave Propagation, [6929] Radio Science / Ionospheric Physics, [6969] Radio Science / Remote Sensing

Scientific paper

Rocket launches are known to produce infrasonic pressure waves that propagate into the ionosphere where coupling between electrons and neutral particles induces fluctuations in ionospheric electron density observable in GPS measurements. We have detected ionospheric perturbations following the launch of space shuttle Atlantis on 11 May 2009 using an array of continually operating GPS stations across the Southeastern coast of the United States and in the Caribbean. Detections are prominent to the south of the westward shuttle trajectory in the area of maximum coupling between the acoustic wave and Earth’s magnetic field, move at speeds consistent with the speed of sound, and show coherency between stations covering a large geographic range. We model the perturbation as an explosive source located at the point of closest approach between the shuttle path and each sub-ionospheric point. The neutral pressure wave is propagated using ray tracing, resultant changes in electron density are calculated at points of intersection between rays and satellite-to-reciever line-of-sight, and synthetic integrated electron content values are derived. Arrival times of the observed and synthesized waveforms match closely, with discrepancies related to errors in the apriori sound speed model used for ray tracing. Current work includes the estimation of source location and energy.

Affiliated with

Also associated with

No associations

Rating

Detection and modeling of the acoustic perturbation produced by the launch of the Space Shuttle using the Global Positioning System 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 Detection and modeling of the acoustic perturbation produced by the launch of the Space Shuttle using the Global Positioning System, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detection and modeling of the acoustic perturbation produced by the launch of the Space Shuttle using the Global Positioning System will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1506130