IPS data of the Mexican Array Radio Telescope (MEXART) corrected for ionospheric scintillation and geomagnetic activity

Details IPS data of the Mexican Array Radio Telescope (MEXART) corrected for ionospheric scintillation and geomagnetic activity IPS data of the Mexican Array Radio Telescope (MEXART) corrected for ionospheric scintillation and geomagnetic activity

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003eaeja.....2923p&link_type=abstract

EGS - AGU - EUG Joint Assembly, Abstracts from the meeting held in Nice, France, 6 - 11 April 2003, abstract #2923

Physics

Scientific paper

The technique of interplanetary scintillation (IPS) allows for remotely probe the plasma concentration of the inner heliosphere. Therefore, with the use of IPS it is possible to track density structures which originate in the Sun and propagate outward into interplanetary space. The technique gives also the possibility of calculating whether a specific large-scale perturbation moves in the direction of the Earth as well as its time of arrival to the Earth environment. Since these structures carry intensified fluxes of energy and momentum which prompt geomagnetic activity, the IPS measurements are important to predict such activity. However, in some cases the IPS has been found wanting before the possibility that false alarms due to perturbations in the ionosphere and in the geomagnetic field can contaminate the data. In this paper, we discuss some shortcomings of the IPS technique and propose for MEXART a correction of the data for geomagnetic activity, and a method of correction for ionospheric activity which involves the analysis of GPS scintillation data.

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