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    • Chau Chong Shing, Jorge Luis (100)
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Mostrando 10 de un total de 318 resultados de la comunidad: Ciencias del Geoespacio y Astronomía. (0.157 segundos)

Mostrando ítems 1-10 de 318

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      Por | Anghel, Adela Florina (University of Colorado, 2009)
      Studies of the thermosphere,ionosphere and plasmasphere using wavelet analysis neural networks, and kalman filters 
      This thesis presents a series of studies investigating the Earth's thermosphere, ionosphere, and plasmasphere using continuous wavelet analysis techniques, multi-layer feedforward neural networks, and Kalman filters, along with extensive datasets of satellite and ground-based observations collected ...
        Palabras claves:
      • Ionosphere
      • Thermosphere
      • Plasmasphere
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      Por | Aveiro, Henrique Carlotto (Cornell University, 2012-08-20)
      Numerical Simulations And Observations of Equatorial F Region Plasma Irregularities 
      This dissertation describes a theoretical, experimental, and modeling investiga- tion of the plasma irregularities in equatorial spread F (ESF). The primary sci- entific objective is to evaluate the electrodynamic nature of equatorial F region plasma instabilities. In particular, the difference between ...
        Palabras claves:
      • Ionosphere
      • Electrodynamics
      • Numerical simulation
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      Por | Tracy, B. D. (Utah State University, 2013)
      Lunar tidal effects in the electrodynamics of the low-latitude ionosphere 
      We used extensive measurements made by the Jicamarca Unattended Long-Term Investigations of the Ionosphere and Atmosphere (JULIA) and Incoherent Scatter Radar (ISR) systems at Jicamarca, Peru during geomagnetic quiet conditions to determine the climatologies of lunar tidal effects on equatorial vertical ...
        Palabras claves:
      • Ionosphere
      • Lunar tides
      • Electrodynamics
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      Por | Hysell, D. L.; Aveiro, H. C.; Chau Chong Shing, Jorge Luis (American Geophysical Union, 2014-03-14)
      Ionospheric Irregularities: Frontiers 
      There are several thermosphere ionosphere models with bottom boundaries somewhere in the middle atmosphere. Achieving a true whole atmosphere modeling capability requires the specification of atmospheric conditions at a boundary. This chapter discusses the use of the Navy Operational Global Atmospheric ...
        Palabras claves:
      • Ionosphere
      • Thermosphere
      • Atmospheric tides
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      Por | Woodman Pollitt, Ronald Francisco (Instituto Geofísico del Perú, Radio Observatorio de Jicamarca, 1984)
      Ionospheric studies at the Jicamarca radar observatory 
      The Jicamarca Radar Observatory is located near Lima, Perú [11°57'S, 76°52'W, magnetic dip 2°N], It consists of a 300 x 300 meter antenna (comprised of 9,216 crossed dipoles), several smaller antennas, 50 MHz transmitiera and receivers, and digital sampling and processing equipment centered around a ...
        Palabras claves:
      • Ionosphere
      • Radar
      • Jicamarca Radio Observatory
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      Por | Pomalaza, José; Woodman Pollitt, Ronald Francisco; Tisnado, Gilberto; Sandoval, Jaime; Guillén, Alberto (Goddard Space Flight Center, GSFC, 1970-10)
      A progress report on scintillation observations at Ancón And Jicamarca observatories 
      The purpose of this report is to present a preliminary analysis of the data collected in connection with NASA contract work with ESSA (ESSA contract No. E22-9-70(N)). Under this contract a study of equatorial ionospheric irregulari­ties using satellite transmissions is being performed.
        Palabras claves:
      • Data processing
      • Ionosphere
      • Artificial satellites
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      Por | Woodman Pollitt, Ronald Francisco (1971-04)
      Jicamarca incoherent scatter observations during the march 1970 storm 
      The purpose of this note is to report on ionospheric observations taken at Jicamarca (lº N Magnetic Latitude) during the March 8, 1970 magnetic storm. This report includes measurements of the electron density, electron temperature and vertical drift (or E-W electric field) for the 7, 8 and 9 of March ...
        Palabras claves:
      • Incoherent scattering radar
      • Measurement
      • Jicamarca Radio Observatory
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      Por | Hysell, D. L.; Chau Chong Shing, Jorge Luis (IntechOpen, 2012-04)
      Aperture synthesis radar imaging for upper atmospheric research 
      Radars used for upper-atmospheric applications can be engineered to measure the Doppler spectra of their targets adequately for most intents and purposes, the spectral resolution being limited only by the observing time and the constraints of stationarity. Likewise, they can measure the range to their ...
        Palabras claves:
      • Spectrum analysis
      • Doppler effect
      • Space plasmas
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      Por | Woodman Pollitt, Ronald Francisco (Academic Press, 2002-12)
      Radar/ MST and ST radars and wind profilers 
      To qualify as an MST radar, the system has to be capable of obtaining echoes from the mesosphere. This requirement limits the frequency range of these radars to the lower frequencies of the VHF band, i.e., between 30 and 300 MHz. Smaller radars, using the same principles and techniques but capable of ...
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      • Incoherent scattering radar
      • Radar
      • Winds
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      Por | Rodrigues, Fabiano da Silveira (Cornell University, 2008)
      Incoherent and coherent scatter radar studies of the equatorial F region 
      Radio waves are weakly scattered by thermal fluctuations in the quasiequilibrium ionospheric plasma. Coherent scatter echoes, meanwhile, are caused by non-thermal electron density fluctuations generated by plasma instabilities and are much stronger than incoherent scatter (IS) echoes. The spectra of ...
        Palabras claves:
      • Incoherent scattering
      • Radar
      • Scattered F
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