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SUMMARY:Dense GNSS Mapping of Equatorial Ionospheric
DTSTART;VALUE=DATE-TIME:20260821T143000Z
DTEND;VALUE=DATE-TIME:20260821T145000Z
DTSTAMP;VALUE=DATE-TIME:20260827T230629Z
UID:indico-contribution-1472@indico.uni.edu.pe
DESCRIPTION:Speakers: Leo Anthony Rufino Robledo ()\nThe Instituto Geográ
 fico Nacional of Peru operates a network of about 70 GNSS receivers distri
 buted across a region that includes the magnetic equator and the Jicamarca
  Radio Observatory. This network provides dense sampling of total electron
  content in the space above Perú\, where incoherent scatter radar and Dig
 isonde measurements offer detailed information on the vertical structure a
 nd electrodynamics of the equatorial ionosphere. We present preliminar reg
 ional TEC products derived from the IGN observations and evaluate them thr
 ough comparisons with vertical TEC estimated from Jicamarca radar electron
  density profiles and Digisonde measurements.\n\nWe also compare TEC time 
 series produced from the IGN network with latitude and longitude bin produ
 cts available through the Madrigal database. The larger number of simultan
 eous satellite receiver links allows the regional bins to be populated at 
 shorter time intervals\, reducing the temporal averaging required in areas
  with sparse coverage. This preserves variations that can be attenuated wh
 en observations are integrated over five minute intervals. The analysis fo
 cuses on data from 2025\, while the available archive extends back approxi
 mately ten years. These observations provide spatial context for Jicamarca
  measurements and  establish the preliminary results to a basis for region
 al studies of irregularity development and future nowcasting efforts.\n\nh
 ttps://indico.uni.edu.pe/event/184/contributions/1472/
LOCATION:UNI\, Lima Perú Auditorio de la Facultad de Ciencias
URL:https://indico.uni.edu.pe/event/184/contributions/1472/
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