GUVI Biblio





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Found 19 entries in the Bibliography.


Showing entries from 1 through 19


2021

Conjugate Photoelectron Energy Spectra Derived From Coincident FUV and Radio Measurements

We present a method for estimating incident photoelectrons energy spectra as a function of altitude by combining global scale far-ultraviolet (FUV) and radio-occultation (RO) measurements. This characterization provides timely insights important for accurate interpretation of ionospheric parameters inferred from the recently launched Ionospheric Connection Explorer (ICON) observations. Quantification of photoelectron impact is enabled by the fact that conjugate photoelectrons (CPEs) directly affect FUV airglow emissions but ...

Urco, J.; Kamalabadi, F.; Kamaci, U.; Harding, B.; Frey, H.; Mende, S.; Huba, J.; England, S.; Immel, T.;

Published by: Geophysical Research Letters      Published on:

YEAR: 2021     DOI: 10.1029/2021GL095839

airglow; conjugate photolectrons; COSMIC2; energy spectra; ICON

2015

Radiative transfer modeling of the OI 135.6~nm emission in the nighttime ionosphere

Remote sensing of the nighttime OI 135.6\ nm emissions has been a widely used method for measuring the\ F\ region ionospheric plasma densities. In this work, we first develop a comprehensive radiative transfer model from first principles to investigate the effects of different physical processes on the production and transport of the 135.6\ nm photons in the ionosphere and then propose a new approach for estimating electron densities from the nightglow. The forward modeling investigation indic ...

Qin, Jianqi; Makela, Jonathan; Kamalabadi, Farzad; Meier, R.;

Published by: Journal of Geophysical Research: Space Physics      Published on: 11/2015

YEAR: 2015     DOI: 10.1002/jgra.v120.1110.1002/2015JA021687

OI 135.6-nm Emission; onosphere; Radiative transfer; remote sensing

Radiative transfer modeling of the OI 135.6 nm emission in the nighttime ionosphere

Qin, Jianqi; Makela, Jonathan; Kamalabadi, Farzad; Meier, RR;

Published by: Journal of Geophysical Research: Space Physics      Published on:

YEAR: 2015     DOI:

2009

Estimation of electron densities in the lower thermosphere from GUVI 135.6 nm tomographic inversions in support of SpreadFEx

Kamalabadi, F.; Comberiate, J.; Taylor, M.; Pautet, P.-D.;

Published by: Annales Geophysicae      Published on: Jan-01-2009

YEAR: 2009     DOI: 10.5194/angeo-27-2439-2009

Overview and summary of the Spread F Experiment (SpreadFEx)

We provide here an overview of, and a summary of results arising from, an extensive experimental campaign (the Spread F Experiment, or SpreadFEx) performed from September to November 2005, with primary measurements in Brazil. The motivation was to define the potential role of neutral atmosphere dynamics, specifically gravity wave motions propagating upward from the lower atmosphere, in seeding Rayleigh-Taylor instability (RTI) and plasma bubbles extending to higher altitudes. Campaign measurements focused on the Brazilian ...

Fritts, D.; Abdu, M.; Batista, B.; Batista, I.; Batista, P.; Buriti, R.; Clemesha, B.; Dautermann, T.; de Paula, E.; Fechine, B.; Fejer, B.; Gobbi, D.; Haase, J.; Kamalabadi, F.; Kherani, E.; Laughman, B.; Lima, P.; Liu, H.-L.; Medeiros, A.; Pautet, P.-D.; Riggin, D.; Rodrigues, F.; Sabbas, F.; Sobral, J.; Stamus, P.; Takahashi, H.; Taylor, M.; Vadas, S.; Vargas, F.; Wrasse, C.;

Published by: Annales Geophysicae      Published on: Jan-01-2009

YEAR: 2009     DOI: 10.5194/angeo-27-2141-2009

The Spread F Experiment (SpreadFEx): Program overview and first results

Fritts, D.; Abdu, M.; Batista, B.; Batista, I.; Batista, P.; Buriti, R.; Clemesha, B.; Dautermann, T.; de Paula, E.; Fechine, B.; Fejer, B.; Gobbi, D.; Haase, J.; Kamalabadi, F.; Kherani, E.; Laughman, B.; Lima, J.; Liu, H.-L.; Medeiros, A.; Pautet, P.-D.; Riggin, D.; Rodrigues, F.; Sabbas, Sao; Sobral, J.; Stamus, P.; Takahasi, H.; Taylor, M.; Vadas, S.; Vargas, F.; Wrasse, C.;

Published by: Earth Planets Space      Published on:

YEAR: 2009     DOI:

2008

Gravity wave and tidal influences on equatorial spread F based on observations during the Spread F Experiment (SpreadFEx)

The Spread F Experiment, or SpreadFEx, was performed from September to November 2005 to define the potential role of neutral atmosphere dynamics, primarily gravity waves propagating upward from the lower atmosphere, in seeding equatorial spread F (ESF) and plasma bubbles extending to higher altitudes. A description of the SpreadFEx campaign motivations, goals, instrumentation, and structure, and an overview of the results presented in this special issue, are provided by Fritts et al. (2008a). The various analyses of neutr ...

Fritts, D.; Vadas, S.; Riggin, D.; Abdu, M.; Batista, I.; Takahashi, H.; Medeiros, A.; Kamalabadi, F.; Liu, H.-L.; Fejer, B.; Taylor, M.;

Published by: Annales Geophysicae      Published on: 10/2008

YEAR: 2008     DOI: 10.5194/angeo-26-3235-2008

2007

A tomographic model for ionospheric imaging with the Global Ultraviolet Imager

Comberiate, J.; Kamalabadi, F.; Paxton, L.;

Published by: Radio Science      Published on: Jan-04-2007

YEAR: 2007     DOI: 10.1029/2005RS003348

2006

Tomographic imaging of equatorial plasma bubbles

Comberiate, J.; Kamalabadi, F.; Paxton, L.;

Published by: Geophysical Research Letters      Published on: Jan-01-2006

YEAR: 2006     DOI: 10.1029/2006GL025820

Validation and Long-Term Studies of Equatorial Plasma Bubble Reconstructions With GUVI

Comberiate, J; Paxton, LJ; Kamalabadi, F;

Published by:       Published on:

YEAR: 2006     DOI:

2005

Coordinated Observations of Equatorial Plasma Bubbles Using TIMED/GUVI and Ground-Based Instruments

Comberiate, J; Kamalabadi, F; Paxton, L;

Published by:       Published on:

YEAR: 2005     DOI:

2004

Statistical Analysis of Equatorial Spread F Activity Seen From TIMED/GUVI

Comberiate, JM; Krekeler, JM; Kamalabadi, F; Paxton, LJ; Kil, H;

Published by:       Published on:

YEAR: 2004     DOI:

Characterization of Ionospheric Plasma Bubbles With the Global Ultraviolet Imager

Kamalabadi, F; Comberiate, J; Krekeler, J; Paxton, L;

Published by:       Published on:

YEAR: 2004     DOI:

2003

The first coordinated ground- and space-based optical observations of equatorial plasma bubbles

We report on ionospheric optical emissions detected by the GUVI instrument on the TIMED satellite. As the satellite crosses the equatorial zone the bright Appleton Anomaly region is imaged. Often these bright zones are interrupted by regions slanted from west to east as the equator is approached forming a backwards \textquoteleftC\textquoteright-shape in the image. To explain this feature we use simultaneous ground-based observations looking equatorward from Hawaii using the 777.4-nm emission. We also compare these optica ...

Kelley, Michael; Makela, J.; Paxton, L.; Kamalabadi, F.; Comberiate, J.; Kil, H.;

Published by: Geophysical Research Letters      Published on: 07/2003

YEAR: 2003     DOI: 10.1029/2003GL017301

Assimilation of Space-Based Ultraviolet Data Into a Recursive Global Ionospheric Model

Kamalabadi, F; Hajj, G; Pi, X; Wang, C; Wilson, B;

Published by:       Published on:

YEAR: 2003     DOI:

Low-Latitude Ionospheric Plasma Depletions: Imaging, Modeling, and Interpretation Using Space-Based Ultraviolet Measurements

Comberiate, JM; Kamalabadi, F; Paxton, L; Kil, H;

Published by:       Published on:

YEAR: 2003     DOI:

Detection and Mapping of Plasma Bubbles With the Global Ultraviolet Imager

Kamalabadi, F; Comberiate, J; Paxton, L; Kil, H;

Published by:       Published on:

YEAR: 2003     DOI:

The first coordinated ground-and space-based optical observations of equatorial plasma bubbles

Kelley, Michael; Makela, Jonathan; Paxton, Larry; Kamalabadi, Farzad; Comberiate, Joseph; Kil, Hyosub;

Published by: Geophysical Research Letters      Published on:

YEAR: 2003     DOI:

2002

Characterization of Low Latitude Ionospheric Plasma Depletions Using Space-Based Ultraviolet Imaging

Comberiate, JM; Kamalabadi, F; Paxton, LJ; Kil, H;

Published by:       Published on:

YEAR: 2002     DOI:



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