GUVI Biblio





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Found 26 entries in the Bibliography.


Showing entries from 1 through 26


2021

First Results From the Retrieved Column O/N2 Ratio From the Ionospheric Connection Explorer (ICON): Evidence of the Impacts of Nonmigrating Tides

In near-Earth space, variations in thermospheric composition have important implications for thermosphere-ionosphere coupling. The ratio of O to N2 is often measured using far-UV airglow observations. Taking such airglow observations from space, looking below the Earth s limb allows for the total column of O and N2 in the ionosphere to be determined. While these observations have enabled many previous studies, determining the impact of nonmigrating tides on thermospheric composition has proved difficult, owing to a small con ...

England, Scott; Meier, R.; Frey, Harald; Mende, Stephen; Stephan, Andrew; Krier, Christopher; Cullens, Chihoko; Wu, Yen-Jung; Triplett, Colin; Sirk, Martin; Korpela, Eric; Harding, Brian; Englert, Christoph; Immel, Thomas;

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

YEAR: 2021     DOI: 10.1029/2021JA029575

airglow; atmospheric composition; Atmospheric tides; thermosphere

2019

Imaging of the Daytime Ionospheric Equatorial Arcs With Extreme and Far Ultraviolet Airglow

We present the first global images of the daytime ionosphere equatorial arcs as manifested in the 83.4-nm airglow. These images were collected by the Limb-Imaging Ionospheric and Thermospheric Extreme-Ultraviolet Spectrograph that commenced operations on the International Space Station in early 2017. We compare these to simultaneous images of the ionospheric radiative recombination airglow at 135.6 nm measured between 250- and 350-km tangent altitudes, where the emission is generated primarily by radiative recombination o ...

Stephan, A.; Finn, S.; Cook, T.; Geddes, G.; Chakrabarti, S.; Budzien, S.;

Published by: Journal of Geophysical Research: Space Physics      Published on: 06/2019

YEAR: 2019     DOI: 10.1029/2019JA026624

2018

Daytime O/N2 Retrieval Algorithm for the Ionospheric Connection Explorer (ICON)

The NASA Ionospheric Connection Explorer Far-Ultraviolet spectrometer, ICON FUV, will measure altitude profiles of the daytime far-ultraviolet (FUV) OI 135.6 nm and N2 Lyman-Birge-Hopfield (LBH) band emissions that are used to determine thermospheric density profiles and state parameters related to thermospheric composition; specifically the thermospheric column O/N2 ratio (symbolized as ΣO/N2). This paper describes the algorithm concept that has been adapted and updated from one previous ...

Stephan, Andrew; Meier, R.; England, Scott; Mende, Stephen; Frey, Harald; Immel, Thomas;

Published by: Space Science Reviews      Published on: 01/2018

YEAR: 2018     DOI: 10.1007/s11214-018-0477-6

Daytime O/N2 retrieval algorithm for the Ionospheric Connection Explorer (ICON)

Stephan, Andrew; Meier, RR; England, Scott; Mende, Stephen; Frey, Harald; Immel, Thomas;

Published by: Space science reviews      Published on:

YEAR: 2018     DOI:

2017

Daytime Ionosphere Retrieval Algorithm for the Ionospheric Connection Explorer (ICON)

The NASA Ionospheric Connection Explorer Extreme Ultraviolet spectrograph, ICON EUV, will measure altitude profiles of the daytime extreme-ultraviolet (EUV) OII emission near 83.4 and 61.7\ nm that are used to determine density profiles and state parameters of the ionosphere. This paper describes the algorithm concept and approach to inverting these measured OII emission profiles to derive the associated O+ density profile from 150\textendash450\ km as a proxy for the electron content in the F-region of the iono ...

Stephan, Andrew; Korpela, Eric; Sirk, Martin; England, Scott; Immel, Thomas;

Published by: Space Science Reviews      Published on: 10/2017

YEAR: 2017     DOI: 10.1007/s11214-017-0385-1

2015

A new technique for remote sensing of O 2 density from 140 to 180 km

Observations of molecular oxygen are difficult to make in the Earth\textquoterights atmosphere between 140 and 200 km altitude. Perhaps the most accurate measurements to date have been obtained from satellite instruments that measure solar occultations of the limb. These do provide height-resolved O2 density measurements, but the nature of this technique is such that the temporal/spatial distribution of the measurements is uneven. Here a new space-based technique is described that utilizes two bright dayglow em ...

Hecht, James; Christensen, Andrew; Yee, Jeng-Hwa; Crowley, Geoff; Bishop, Rebeeca; Budzien, Scott; Stephan, Andrew; Evans, Scott;

Published by: Geophysical Research Letters      Published on: 01/2015

YEAR: 2015     DOI: 10.1002/2014GL062355

composition; technique; thermosphere

Remote Sensing of Earth\textquoterights Limb by TIMED/GUVI: Retrieval of thermospheric composition and temperature

The Global Ultraviolet Imager (GUVI) onboard the Thermosphere-Ionosphere-Mesosphere Energetics and Dynamics (TIMED) satellite senses far ultraviolet emissions from O and N2 in the thermosphere. Transformation of far ultraviolet radiances measured on the Earth limb into O, N2, and O2 number densities and temperature quantifies these responses and demonstrates the value of simultaneous altitude and geographic information. Composition and temperature variations are available from 2002 to 2007 ...

Meier, R.; Picone, J.; Drob, D.; Bishop, J.; Emmert, J.; Lean, J.; Stephan, A.; Strickland, D.; Christensen, A.; Paxton, L.; Morrison, D.; Kil, H.; Wolven, B.; Woods, Thomas; Crowley, G.; Gibson, S.;

Published by: Earth and Space Science      Published on: 01/2015

YEAR: 2015     DOI: 10.1002/2014EA000035

airglow and aurora; remote sensing; thermosphere: composition and chemistry; thermosphere: energy deposition

A new technique for remote sensing of O2 density from 140 to 180 km

Hecht, James; Christensen, Andrew; Yee, Jeng-Hwa; Crowley, Geoff; Bishop, Rebeeca; Budzien, Scott; Stephan, Andrew; Evans, Scott;

Published by: Geophysical Research Letters      Published on:

YEAR: 2015     DOI:

Remote sensing of Earth s limb by TIMED/GUVI: Retrieval of thermospheric composition and temperature

Meier, RR; Picone, JM; Drob, D; Bishop, J; Emmert, JT; Lean, JL; Stephan, AW; Strickland, DJ; Christensen, AB; Paxton, LJ; , others;

Published by: Earth and Space Science      Published on:

YEAR: 2015     DOI:

2014

Ionospheric imaging using merged ultraviolet airglow and radio occultation data

The Limb-imaging Ionospheric and Thermospheric Extreme-ultraviolet Spectrograph (LITES) and GPS Radio Occultation and Ultraviolet Photometry-Colocated (GROUP-C) experiments are being considered for flight aboard the Space Test Program Houston 5 (STP-H5) experiment pallet to the International Space Station (ISS). LITES is a compact imaging spectrograph that makes one-dimensional images of atmospheric and ionospheric ultraviolet (60-140 nm) airglow above the limb of the Earth. The LITES optical design is advantageous in tha ...

Stephan, Andrew; Budzien, Scott; Finn, Susanna; Cook, Timothy; Chakrabarti, Supriya; Powell, Steven; Psiaki, Mark;

Published by:       Published on:

YEAR: 2014     DOI: 10.1117/12.2061420

2011

The production of Titan\textquoterights ultraviolet nitrogen airglow

Stevens, Michael; Gustin, Jacques; Ajello, Joseph; Evans, Scott; Meier, R.; Kochenash, Andrew; Stephan, Andrew; Stewart, Ian; Esposito, Larry; McClintock, William; Holsclaw, Greg; Bradley, Todd; Lewis, B.; Heays, A.;

Published by: Journal of Geophysical Research      Published on: Jan-01-2011

YEAR: 2011     DOI: 10.1029/2010JA016284

Simulating Ionospheric Variability in the Descending Phase of Solar Cycle-23 using SAMI3

McDonald, SE; Lean, J; Huba, JD; Joyce, GR; Emmert, JT; Drob, DP; Stephan, AW; Siefring, CL; Meier, RR; Picone, J;

Published by:       Published on:

YEAR: 2011     DOI:

Remote Sensing of lower thermospheric temperature and composition based on observations of O2 Atmospheric band emission.

Christensen, AB; Yee, J; Budzien, SA; Bishop, RL; Hecht, JH; Stephan, AW; Crowley, G;

Published by:       Published on:

YEAR: 2011     DOI:

2010

Integrating the Sun-Earth System for the Operational Environment (ISES-OE)

Lean, J.; Huba, J.; McDonald, S.; Slinker, S.; Drob, D.; Emmert, J.; Meier, R.; Picone, J.; Joyce, G.; Krall, J.; Stephan, A.; Roach, K.; Knight, H.; Plunkett, S.; Wu, C.-C.; Wood, B.; Wang, Y.-M.; Howard, R.; Chen, J.; Bernhardt, P.; Fedder, J.;

Published by:       Published on:

YEAR: 2010     DOI:

2009

The Remote Atmospheric and Ionospheric Detection System on the ISS: Sensor performance and space weather applications from the extreme to the near ultraviolet

Stephan, Andrew; Budzien, Scott; Bishop, Rebecca; Straus, Paul; Christensen, Andrew; Hecht, James; Van Epps, Zachary;

Published by:       Published on:

YEAR: 2009     DOI:

The Production of Titan’s Far Ultraviolet Nitrogen Airglow

Stevens, Michael; Gustin, Jacques; Ajello, Joseph; Evans, Scott; Meier, RR; Stephan, Andrew; Stewart, Ian; Larsen, Kristopher; Esposito, Larry; McClintock, William;

Published by: Space      Published on:

YEAR: 2009     DOI:

Near Infrared Spectroscopy and Photometry of the Thermosphere from the RAIDS Experiment on the International Space Station

Christensen, AB; Bishop, RL; Budzien, SA; Hecht, JH; Stephan, AW; Straus, PR; van Epps, Z;

Published by:       Published on:

YEAR: 2009     DOI:

2008

Comparison of Global Ultraviolet Imager limb and disk observations of column O/N 2 during a geomagnetic storm

Stephan, A.; Meier, R.; Paxton, L.;

Published by: Journal of Geophysical Research      Published on: Jan-01-2008

YEAR: 2008     DOI: 10.1029/2007JA012599

A coordinated multi-line investigation aimed at deriving hydrogen densities in the upper atmosphere

Mierkiewicz, Edwin; Roesler, Frederick; Stephan, Andrew; Nossal, Susan;

Published by: 37th COSPAR Scientific Assembly      Published on:

YEAR: 2008     DOI:

2007

Comparison of Column O/N2 From GUVI Limb Profiles and Disk Images

Stephan, AW; Meier, RR;

Published by:       Published on:

YEAR: 2007     DOI:

2006

Seasonal patterns in exospheric temperature: TIMED/GUVI versus NRLMSIS

Stephan, AW; Meier, RR; Christensen, AB; Paxton, LJ;

Published by:       Published on:

YEAR: 2006     DOI:

2005

SSUSI and GUVI limb scans of thermospheric neutral density changes during a geomagnetic storm

Stephan, AW; Picone, JM; Meier, RR; Emmert, JT; Paxton, LJ; Morrison, D; Wolven, B; Kil, H;

Published by:       Published on:

YEAR: 2005     DOI:

2003

Ionosphere and Upper Atmosphere (SIA): SIA 8

Stephan, AW; Meier, RR; Dymond, KF; Budzien, SA; McCoy, RP;

Published by: Journal of Geophysical Research-Part A-Space Physics      Published on:

YEAR: 2003     DOI:

Quenching rate coefficients for O+ (2P) derived from middle ultraviolet airglow

Stephan, AW; Meier, RR; Dymond, KF; Budzien, SA; McCoy, RP;

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

YEAR: 2003     DOI:

Airglow observations of low latitude O and N\_2 during a geomagnetic storm

Stephan, AW; Meier, RR; Dymond, KF; Budzien, SA; McCoy, RP;

Published by:       Published on:

YEAR: 2003     DOI:

2002

ISAAC measurements of MUV airglow derived from thermospheric O, N 2, and NO

Stephan, AW; Meier, RR; Dymond, KF; Budzien, SA; McCoy, RP;

Published by:       Published on:

YEAR: 2002     DOI:



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