Ionospheric Disturbance Effects on IPS signals from MEXART

Details Ionospheric Disturbance Effects on IPS signals from MEXART Ionospheric Disturbance Effects on IPS signals from MEXART

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsh13b1969r&link_type=abstract

American Geophysical Union, Fall Meeting 2011, abstract #SH13B-1969

Physics

Plasma Physics

[2435] Ionosphere / Ionospheric Disturbances, [5729] Planetary Sciences: Fluid Planets / Ionospheres, [7823] Space Plasma Physics / Ionization Processes, [7944] Space Weather / Ionospheric Effects On Radio Waves

Scientific paper

We present a study related to the impact by ionospheric disturbances in the radio-signal of sources observed with MEXican Array Radio Telescope (MEXART) from April 20th to May 31th of 2010. Along this time interval, we observed the behavior of radio-signal for the sources: 3C048, 3C144, 3C274, Cas A, Cen A, and 3C405, in a daily basis. We found that there were days in which some of these sources showed slight fluctuations, even when there was no major solar event. We analyzed the time series of each source using a Wavelet tool that allowed us to highlight those periods which can exist in the signal related with these fluctuations. In addition, to characterize and identify ionospheric effects, we have calculated the Total Electron Content (TEC) from Global Positioning System (GPS) data and have taken into account the Dst index for the same period with the purpose of discard effect from geomagnetic storms. We found that the TEC can be used as a potential tool to discriminate between interplanetary scintillation and ionospheric fluctuations in MEXART data.

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