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Libros, boletines, compendios y memorias son las publicaciones que reúne esta comunidad, las cuales han sido editadas por el Instituto Geofísico del Perú en el marco de sus actividades.
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Browsing Institucional by Subject "Atmospheric dispersion"
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Item Open Access Calibrated radar observations of the equatorial mesosphere and ionosphere during an 11-day campaign(Instituto Geofísico del Perú, 2009) Kudeki, E.; Milla, Marco; Reyes, P.; Lehmacher, G.; Chau Chong Shing, Jorge Luis; Kuyeng, K. M.; De la Jara, CésarPresentado en MST12 - 12th Workshop on Technical and Scientific Aspects of MST Radars, London, Ontario, Canada, 17-23 May 2009.Item Open Access Comparing Jicamarca and C/NOFS (PLP, VEFI): observations of equatorial spread F irregularities(Instituto Geofísico del Perú, 2009) Hysell, D. L.; Hedden, R. B.; Chau Chong Shing, Jorge Luis; Galindo, F. R.; Roddy, P. A.; Pfaff, R. F.Diapositivas presentadas en The Meeting of the Americas, 2009 Joint Assembly, organizadas por la American Geophysical Union del 24 al 27 mayo de 2009 en Ontario, Canada.Item Open Access Daytime vertical and zonal velocities from 150-km echoes over Jicamarca(Instituto Geofísico del Perú, Radio Observatorio de Jicamarca, 2004-06-27) Chau Chong Shing, Jorge Luis; Woodman Pollitt, Ronald Francisco; Scipión, DannyDoppler velocities of 150-km echoes represents the vertical ExB drift velocities at F region altitudes. 150-km observations represent and excelent mean of monitoring the electric fields at equatorial latitudes. Low power observations of 150-km echoes using the JULIA system have been carried out almost continuosly since August 2001 at Jicamarca [e.g., Anderson et al., 2004]. Most of the observations have been done pointing perpendiculat to the magnetic fiel (B) in the magnetic meridian, allowing the measurement of the vertical component of the ExB drift.Item Open Access Evaluation of topside equatorial spread F spectra estimators using Monte Carlo simulations(Instituto Geofísico del Perú, 2008) Galindo, F. R.; Kuyeng, K. M.; Chau Chong Shing, Jorge Luis; Hysell, D. L.Radar observations typically employ periodic pulses to study any target. This scheme allows a simple processing of the data but the results frequently shows range or frequency aliasing. In order to solve this problem Uppala and Sahr [1] introduced the aperiodic technique (AT) in the radio science community. The AT is based on transmitting pulses at non uniform intervals and allows to study moderately overspread targets. Some equatorial Spread F (ESF) echoes belong to this category, particularly those from the topside. Using this idea Jicamarca Radio Observatory (JRO) has done a couple of experiments to study ESF echoes. Chau et al [2] used the Fast Fourier Transform (FFT) to compute spectra from those experiments and developed some criteria to remove clutter due to the aperiodic sequence. A second scheme of work was introduced by Hysell et al [3] and this scheme uses a Bayesian method to compute the spectra. Continuing this line of research a Monte Carlo simulations of typical echoes from equatorial ionospheric irregularities as well as ground clutter has been done to evaluate different aperiodic pulsing and inversion techniques to estimate the spectra or its corresponding AutoCorrelation Function (ACF). Our main objective is the estimation of the moderately overspread topside equatorial spread F (ESF) spectra. The optimal spectra estimators combined with radar imaging techniques might represent the unique means to estimate the irregularity power and energy spectral density versus wavenumber from the ground.Item Open Access Full profile incoherent scatter analysis at Jicamarca(Instituto Geofísico del Perú, 2008) Hysell, D. L.; Rodrigues, F. S.; Chau Chong Shing, Jorge Luis; Huba, J. D.Diapositivas presentadas en URSI General Assembly, August 7-16, 2008, Chicago, Illinois, USA.Item Open Access Incoherent scatter measurements of F-region temperatures with the Jicamarca radar beam pointing perpendicular to B(Instituto Geofísico del Perú, 2008) Reyes, P.; Milla, Marco; Kudeki, E.Diapositivas presentadas en: ISEA 12 - 12th International Symposium on Equatorial Aeronomy, May 18-24, 2008. Crete, Greece.Item Open Access Jicamarca activities: Jul 2007- Jun 2008(Instituto Geofísico del Perú, 2008) Chau Chong Shing, Jorge Luis; Calle, A.Diapositivas presentadas en CEDAR 2008 Workshop, Zermatt, Utah , 16-21 June 2008.Item Open Access Jicamarca highlights 2009-2010(Instituto Geofísico del Perú, 2010) Chau Chong Shing, Jorge Luis; Calle, A.Diapositivas presentadas en el 2010 CEDAR Workshop, University of Colorado, Boulder, CO, 20-25 June 2010.Item Open Access Jicamarca observations at solar minimum(Instituto Geofísico del Perú, 2009) Hysell, D. L.; Chau Chong Shing, Jorge LuisDiapositivas presentadas en: CEDAR Workshop 2009 del 28 de junio al 2 de julio de 2009 en Santa Fe, Nuevo México, USA.Item Open Access Lessons learned observing Farley Buneman waves at low, middle, and high latitudes(Instituto Geofísico del Perú, 2008) Hysell, D. L.; Michhue, G.; Larsen, M. F.; Pfaff, R.; Chau Chong Shing, Jorge LuisDiapositivas presentadas en: ISEA 12 - 12th International Symposium on Equatorial Aeronomy, May 18-24, 2008. Crete, Greece.Item Open Access Measuring MLT winds by tracking meteor trails with incoherent scatter radar: a new method observes rapidly changing winds exceeding 500km/Hr(Instituto Geofísico del Perú, 2009) Oppenheim, Meers; Sugar, Glenn; Slowey, Nick; Bass, Elizabeth; Chau Chong Shing, Jorge Luis; Close, SigridDiapositivas presentadas en: CEDAR Workshop 2009 del 28 de junio al 2 de julio de 2009 en Santa Fe, Nuevo México, USA.Item Open Access Measuring the equatorial spread F irregularity k-space spectrum with the Jicamarca radar: preliminary results(Instituto Geofísico del Perú, 2008) Chau Chong Shing, Jorge Luis; Hysell, D.L.Diapositivas presentadas en URSI General Assembly, August 7-16, 2008, Chicago, Illinois, USA.Item Open Access Modeling the incoherent scatter radar spectrum perpendicular to the Earth's magnetic field(Instituto Geofísico del Perú, 2008-05) Milla, Marco; Kudeki, ErhanDiapositivas presentadas en: ISEA 12 - 12th International Symposium on Equatorial Aeronomy, May 18-24, 2008. Crete, Greece.Item Open Access Multi-frequency and multi-volume radar studies of the equatorial 150-km region(Instituto Geofísico del Perú, 2009-03) Chau Chong Shing, Jorge Luis; Milla, Marco; Kudeki, E.Presentado en MST12 - 12th Workshop on Technical and Scientific Aspects of MST Radars, London, Ontario, Canada, 17-23 May 2009.Item Open Access New capabilities of the Jicamarca radar and its cluster of instruments(Instituto Geofísico del Perú, 2010) Milla, Marco; Chau Chong Shing, Jorge LuisDiapositivas presentadas en The Meeting of the Americas (AGU), llevado a acabo del 8 al 12 de agosto 2010 en la ciudad de Foz do Iguassu, Brasil.Item Open Access On the possible effect of the signal processing in the meteor-head data at Jicamarca: preliminary results(Instituto Geofísico del Perú, 2010) Galindo, F.; Urbina, J.; Chau Chong Shing, Jorge Luis; Dyrud, I.Diapositivas presentadas en el 2010 CEDAR Workshop, University of Colorado, Boulder, CO, 20-25 June 2010.Item Open Access Perp-to-B incoherent scatter measurements of F-region drifts, density, and temperatures at JRO(Instituto Geofísico del Perú, 2008) Kudeki, Erhan; Milla, Marco; Reyes, Pablo; Chau Chong Shing, Jorge Luis; Castillo, OttoDiapositivas presentadas en URSI General Assembly, August 7-16, 2008, Chicago, Illinois, USA.Item Open Access Radar calibration of mesospheric and ionospheric echoes based on the incoherent scatter and magneto-ionic propagation theories (MST-ISR 2 campaign)(Instituto Geofísico del Perú, 2010) Milla, Marco; Kudeki, Erhan; Reyes, Pablo; Chau Chong Shing, Jorge LuisDiapositivas presentadas en el II Encuentro Nacional de Radio Científicos e Investigadores Afines 2010 (URSI- PERÚ), llevado a cabo en la Pontificia Universidad Católica del Perú.Item Open Access Radar observations of the equatorial atmosphere/ionosphere(Instituto Geofísico del Perú, 2010) Chau Chong Shing, Jorge LuisDiapositivas de una presentación oral realizada en la University de Nagoya, Japan en el año 2010.Item Open Access Radars: powerful tools to study the upper atmosphere(Instituto Geofísico del Perú, 2009) Chau Chong Shing, Jorge Luis; Varney, Roger H.Diapositivas presentadas en: CEDAR Workshop 2009 del 28 de junio al 2 de julio de 2009 en Santa Fe, Nuevo México, USA.