Papers by Eduardo Araujo-Pradere
Advances in Space Research, 2012
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Earth and Space Science
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Academia Letters
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<p>The paper is focused on differences/similarities in regular daily ionosp... more <p>The paper is focused on differences/similarities in regular daily ionospheric variability and in the ionospheric response to CME- and CIR/CHSS-related magnetic disturbances above magnetically conjugated ionospheric stations located at Northern and Southern Hemisphere. We analysed variability of critical frequency foF2 and the F2 layer peak height hmF2 obtained for European-African sector for initial, main and recovery phases of magnetic storms of different intensity, which occurred within the last two solar cycles. We also used exclusively GPS-based detection methods, specifically information on TEC, TEC deviations in space and time from a background reference (dTEC), and the Rate of TEC change in time (ROT), all inferred from GPS receiver networks in Europe and Africa to compare behavior of Large Scale Traveling Ionospheric Disturbances (LSTIDs) at both hemispheres. We conclude that hemispheric conjugacy of LSTID is highly probable during both CME- and CIR/CHSS-related storms while interhemispheric circulation rather unlikely but still occurring during some periods.</p>
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Academia Letters, 2021
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Atmospheric Chemistry and Physics Discussions, 2017
Sensors on satellites provide unprecedented understanding of the Earth’s climate system by measur... more Sensors on satellites provide unprecedented understanding of the Earth’s climate system by measuring incoming solar radiation, as well as both passive and active observations of the entire Earth with outstanding spatial and temporal coverage that would be currently impossible without satellite technology. A common challenge with satellite observations is to quantify their ability to provide well-calibrated, long-term, stable records of the parameters they measure. Ground-based intercomparisons offer some insight, while reference observations and internal calibrations give further assistance for understanding long-term stability. A valuable tool for evaluating and developing long-term records from satellites is the examination of data from overlapping satellites. Prior papers have used overlap periods to identify the offset between data from two satellites and estimate the added uncertainty to long-term records. This paper addresses the length of overlap needed to identify an offset ...
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Proceedings of MOL2NET 2016, International Conference on Multidisciplinary Sciences, 2nd edition, 2016
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Geofísica Internacional
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ABSTRACT
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Journal of Geophysical Research: Space Physics, 2013
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The US-Total Electron Content (USTEC) model is a GPS data assimilation model for ionospheric spec... more The US-Total Electron Content (USTEC) model is a GPS data assimilation model for ionospheric specification over the continental US (CONUS). The model ingests GPS data from the CORS (primary data stream), the real time IGS (RTIGS), and the GPS/MET (meteorological applications of the GPS) networks. Currently, there are about 80 CORS, 30 GPS/MET and 15 IGS stations ingested into the
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It is now abundantly clear that upper atmosphere space weather, in both neutral and plasma densit... more It is now abundantly clear that upper atmosphere space weather, in both neutral and plasma density, is forced by the Sun, the lower atmosphere, and a range of internal processes. EUV and plasma forcing from the Sun has been the focus historically, and is still a major challenge. In contrast, characterizing the influence from the lower atmosphere drivers is a
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This paper presents results of the analysis of the ionospheric F2 layer peak height hmF2 vari-ati... more This paper presents results of the analysis of the ionospheric F2 layer peak height hmF2 vari-ation under disturbed geomagnetic conditions over middle latitudes. The analysis was carried out using manually checked hourly hmF2 values derived from electron density profiles obtained at selected ionospheric stations of the Northern (NH) and Southern hemisphere (SH) within the last solar cycle. We studied seasonal,
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Windows to the Universe (http://www.windows.ucar.edu) is a popular and comprehensive Earth and sp... more Windows to the Universe (http://www.windows.ucar.edu) is a popular and comprehensive Earth and space science education web site that uses an interdisciplinary approach to engage our global audience. The entire Windows to the Universe site (roughly 7,000 pages) is being translated into Spanish, with support from the National Science Foundation. Large portions have already been "published" to the web and have
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An improved understanding of the physics of the ionospheric response has enabled the recent succe... more An improved understanding of the physics of the ionospheric response has enabled the recent success in the development of empirical models of the ionospheric behavior during geomagnetic disturbed conditions. One of them, the STORM Time Empirical Ionospheric Correction Model, has been included in the International Reference Ionosphere (IRI) since 2000. STORM, whose design includes the seasonal dependence in the migration
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A dedicated education and outreach project was developed to support and complement the MILAGRO ca... more A dedicated education and outreach project was developed to support and complement the MILAGRO campaign (March 1 30, 2006), which took place in Mexico City and adjoining communities. MILAGRO is an intensive observational mission to study the emissions, and the chemical and physical transformations of gaseous and aerosol pollutants within and in the outflow of the world's second largest metropolitan
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Papers by Eduardo Araujo-Pradere