2021 |
Twenty Years of Space-Based Observations of the Ionosphere-Thermosphere-Mesosphere System and a View to the Future
Mlynczak, Martin; Yee, Jeng-Hwa; Paxton, Larry; Ridley, Aaron;
Published by: Published on:
YEAR: 2021   DOI:
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2019 |
Impact of nitric oxide, solar EUV and particle precipitation on thermospheric density decrease
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2018 |
Seasonal Variation Analysis of Thermospheric Composition in TIMED/GUVI Limb Measurements
Knowledge of thermospheric variability is essential to the understanding and forecasting of ionospheric behavior and space weather. As well, thermospheric density variability is a vital ingredient for prediction of space objects orbital changes and the lifetime of spacecraft. The Global UltraViolet Imager (GUVI) onboard the Thermosphere Ionosphere Mesosphere Energetics and Dynamics (TIMED) satellite provides the first global dataset of thermosphere composition (O, N2 and O2 densities) and temperature vertical profiles from 2 ...
Yue, Jia; Meier, Robert; Jian, Yongxiao; Yee, Jeng-Hwa; Wu, Dong; Russell, James; Wang, Wenbin; Burns, Alan;
Published by: 2018 Triennial Earth-Sun Summit (TESS Published on:
YEAR: 2018   DOI:
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Storm-time thermospheric neutral density variations: Impacts of nitric oxide cooling, and solar EUV, Particle and Joule heating
Zhang, Yongliang; Paxton, Larry; Lu, Gang; Yee, Jeng-Hwa;
Published by: Published on:
YEAR: 2018   DOI:
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2016 |
Current Understanding of the Ionosphere Thermosphere Ionosphere (ITM) Structure Variability, Its Impacts, and Outstanding Questions II Posters
Yee, Jeng-Hwa; Paxton, Larry; Russell, James; Mlynczak, Martin;
Published by: Published on:
YEAR: 2016   DOI:
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TIME after TIMED-A perspective on Thermosphere-Ionosphere Mesosphere science and future observational needs after the TIMED mission epoch
Mlynczak, Martin; , Russell; Hunt, Linda; Christensen, Andrew; Paxton, Larry; Woods, Thomas; Niciejewski, Richard; Yee, Jeng-Hwa;
Published by: Published on:
YEAR: 2016   DOI:
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Spatial and Temporal Variability of Atomic Oxygen in The Mesosphere And Lower Thermosphere
Yee, Jeng-Hwa; , Russell; Mlynczak, Martin; Christensen, Andrew; Paxton, Larry; Zhang, Yongliang; Skinner, Wilbert; Woods, Thomas;
Published by: Published on:
YEAR: 2016   DOI:
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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
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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:
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2014 |
The MSX/UVISI Stellar Occultation Experiments: Proof-of-Concept Demonstration of a New Approach to Remote Sensing of Earth’s Atmosphere
Vervack, Ronald; Yee, Jeng-Hwa; Swartz, William; DeMajistre, Robert; Paxton, Larry;
Published by: JOHNS HOPKINS APL TECHNICAL DIGEST Published on:
YEAR: 2014   DOI:
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2013 |
The quiet nighttime low-latitude ionosphere as observed by TIMED/GUVI
In this paper, we examine the nighttime ionosphere climatology structure in the low latitude region and discrepancies between Global Ultraviolet Imager (GUVI) observations and the IRI model predictions using (1) the magnetic zonal mean of electron number density as a function of altitude and magnetic latitude, (2) vertical electron density profiles at various levels of F10.7 index, (3) nighttime descent and magnitude decrease of the ionosphere, (4) point-to-point comparisons of F-peak height (hmF2) and density (NmF2), and ...
Talaat, E.R.; Yee, J.-H.; Hsieh, S.-Y.; Paxton, L.J.; DeMajistre, R.; Christensen, A.B.; Bilitza, D.;
Published by: Advances in Space Research Published on: 02/2013
YEAR: 2013   DOI: 10.1016/j.asr.2012.11.012
Electron density; GUVI; Ionosphere; IRI; TIMED
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2012 |
The O2 (b1$\Sigma$) dayglow emissions: Application to middle and upper atmosphere remote sensing
Yee, Jeng-Hwa; DeMajistre, R; Morgan, F;
Published by: Canadian Journal of Physics Published on:
YEAR: 2012   DOI:
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2011 |
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:
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2010 |
NO 2 air afterglow and O and NO densities from Odin-OSIRIS night and ACE-FTS sunset observations in the Antarctic MLT region
Gattinger, R.; McDade, I.; an, A.; Boone, C.; Walker, K.; Bernath, P.; Evans, W.; Degenstein, D.; Yee, J.-H.; Sheese, P.; Llewellyn, E.;
Published by: Journal of Geophysical Research Published on: Jan-01-2010
YEAR: 2010   DOI: 10.1029/2009JD013205
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Ionospheric E-Region Chemistry and Energetics
Mertens, Christopher; Mlynczak, Martin; Gronoff, Guillaume; Yee, Jeng-Hwa; Swenson, Charles; Fish, Chad; Wellard, Stan; Lumpe, Jerry; Strickland, Doug; Evans, Scott;
Published by: To propose an Earth-observing, multi-satellite science mission to explore the last remaining frontier in upper atmospheric research—the ionospheric E-region Published on:
YEAR: 2010   DOI:
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NO2 air afterglow and O and NO densities from Odin-OSIRIS night and ACE-FTS sunset observations in the Antarctic MLT region
Gattinger, RL; McDade, IC; an, AL; Boone, CD; Walker, KA; Bernath, PF; Evans, WFJ; Degenstein, DA; Yee, J-H; Sheese, P; , others;
Published by: Journal of Geophysical Research: Atmospheres Published on:
YEAR: 2010   DOI:
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2008 |
Lower Atmosphere Wave Effects on Ionospheric Variability
Talaat, Elsayed; Yee, Jeng-Hwa; Paxton, Larry; DeMajistre, Robert; Christensen, Andrew; Mlynczak, MG; , Russell; Zhu, Xun; Sotirelis, Thomas; Kil, Hyosub;
Published by: 37th COSPAR Scientific Assembly Published on:
YEAR: 2008   DOI:
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Performing Science Research with the Virtual ITM Observatory
Morrison, D; Weiss, M; Immer, L; Patrone, D; Potter, M; Holder, R; Barnes, R; Colclough, C; Nylund, S; Yee, J; , others;
Published by: Published on:
YEAR: 2008   DOI:
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2007 |
The Variabilities of the Mesosphere and Lower Thermosphere as observed by TIMED
Yee, J; Talaat, E; Zhu, X; Russell, J; Mlynczak, M; SKINNER, W; Paxton, L;
Published by: Published on:
YEAR: 2007   DOI:
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Inter-annual and long-term variations observed in the ITM system
Talaat, ER; Yee, J; Ruohoniemi, JM; Zhu, X; DeMajistre, R; Russell, J; Mlynczak, M; Paxton, L; Christensen, A;
Published by: Published on:
YEAR: 2007   DOI:
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The low-latitude ionosphere as observed by TIMED/GUVI and TOPEX/Jason and comparisons with the IRI model
Hsieh, SW; Talaat, ER; Bilitza, D; DeMajistre, R; Paxton, L; Christensen, A; Yee, J;
Published by: Published on:
YEAR: 2007   DOI:
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2006 |
VITMO: A Virtual Observatory for the ITM Community
Morrison, D; Weiss, M; Daley, R; Immer, L; Nylund, S; Yee, J; Talaat, E; Russell, J; Heelis, R; Kozyra, J; , others;
Published by: Published on:
YEAR: 2006   DOI:
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Analyses of solar activity effects on the low-latitude ionosphere
Wolven, BC; Talaat, ER; Yee, J; DeMajistre, R; Paxton, LJ; Christensen, A; Sotirelis, T; Smith, DC; Bilitza, D; Azeem, I;
Published by: Published on:
YEAR: 2006   DOI:
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The effects of solar activity on the low-latitude ionosphere as observed from space
Talaat, ER; Yee, J-H; DeMajistre, R; Paxton, LJ; Christensen, A; Sotirelis, T; Smith, DC; Bilitza, D;
Published by: Published on:
YEAR: 2006   DOI:
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Geophysical Monograph SeriesRecurrent Magnetic Storms: Corotating Solar Wind StreamsResponse of the upper/middle atmosphere to coronal holes and powerful high-speed solar wind streams in 2003
Kozyra, J.; Crowley, G.; Emery, B.; Fang, X.; Maris, G.; Mlynczak, M.; Niciejewski, R.; Palo, S.; Paxton, L.; Randall, C.; Rong, P.-P.; Russell, J.; Skinner, W.; Solomon, S.; Talaat, E.; Wu, Q.; Yee, J.-H.;
Published by: Published on:
YEAR: 2006   DOI: 10.1029/GM16710.1029/167GM24
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Lower Atmosphere Effects on Thermospheric and Ionospheric Variability
Talaat, ER; Yee, J; Paxton, L; DeMajistre, R; Christensen, A; Russell, J; Mlynczak, M; Zhu, X; Sotirelis, T; Smith, D;
Published by: Published on:
YEAR: 2006   DOI:
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2005 |
Storm-time enhancement of mid-latitude ultraviolet emissions due to energetic neutral atom precipitation
DeMajistre, R.; Brandt, P.; Immel, T.; Yee, J.-H.; Dalgarno, A.; Paxton, L.; Kharchenko, V.;
Published by: Geophysical Research Letters Published on: Jan-01-2005
YEAR: 2005   DOI: 10.1029/2005GL023059
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The climatology of the quiet nighttime low-latitude ionosphere
Talaat, ER; Yee, J; DeMajistre, R; Paxton, L; Kil, H; Zhang, Y; Sotirelis, T; Christensen, A; Palo, S; Azeem, I; , others;
Published by: Published on:
YEAR: 2005   DOI:
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GUVI Observations of Solar EUV and Geomagnetic Storm Control of the Ionosphere and Thermosphere
Paxton, LJ; Yee, J; Zhang, Y; Kil, H; DeMajistre, R; Morrison, D; Wolven, B; Meng, C;
Published by: Published on:
YEAR: 2005   DOI:
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NASA Thermosphere Ionosphere Mesosphere Energetics and Dynamics (TIMED) Mission: Significant Findings and Evolving Research
Yee, J; Christensen, A; Russell, J; Killeen, T; Woods, T; Kozyra, J; Smith, A; Fritts, D; Forbes, J; Mayr, H; , others;
Published by: Published on:
YEAR: 2005   DOI:
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TIMED Contributions to the NASA Sun-Solar System Connections Great Observatory
Christensen, AB; Kozyra, J; Paxton, L; Talaat, E; Yee, J;
Published by: Published on:
YEAR: 2005   DOI:
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2004 |
Retrievals of nighttime electron density from Thermosphere Ionosphere Mesosphere Energetics and Dynamics (TIMED) mission Global Ultraviolet Imager (GUVI) measurements
In this work we will present a method for retrieving nighttime electron density profiles from OI 135.6 nm limb emissions measured by the Global Ultraviolet Imager (GUVI) aboard the Thermosphere Ionosphere Mesosphere Energetics and Dynamics (TIMED) mission spacecraft. The primary mechanism for 135.6 nm radiance in the nighttime thermosphere is recombination of O+ ions, and the volume emission rate is approximately proportional to the square of the electron density. Herein we describe a two-step inversion method ...
DeMajistre, R.; Paxton, L.; Morrison, D.; Yee, J.-H.; Goncharenko, L.; Christensen, A.;
Published by: Journal of Geophysical Research Published on: 04/2004
YEAR: 2004   DOI: 10.1029/2003JA010296
Electron density; inversion; low-latitude ionosphere; TIMED/GUVI
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Observations of Tides and Planetary Waves from the stratosphere to the thermosphere
Talaat, ER; Yee, J; Paxton, L; Zhang, Y; Zhu, X; Meier, R; Christensen, A; Mlynczak, M; RUSSELL, JM;
Published by: Published on:
YEAR: 2004   DOI:
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Retrievals of nighttime electron density from TIMED Global Ultraviolet Imager (GUVI) measurements
DeMajistre, R; Paxton, LJ; Morrison, D; Yee, JH; Goncharenko, L; Christensen, A;
Published by: J. Geophys. Res Published on:
YEAR: 2004   DOI:
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Observational and Modeling Analysis of the Coupling Between Neutral Winds and the Low-Latitude Ionosphere
Talaat, ER; DeMajistre, R; Yee, J; Paxton, LJ; Crowley, G; Palo, S; Christensen, AB; Azeem, I; Roble, R; Kil, H; , others;
Published by: Published on:
YEAR: 2004   DOI:
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Ionosphere and Upper Atmosphere-A 05305. Retrievals of nighttime electron density from Thermosphere Ionosphere Mesosphere Energetics and Dynamics (TIMED) mission Global Ultraviolet Imager (GUVI)
DeMajistre, R; Paxton, LJ; Morrison, D; Yee, JH; Goncharenko, LP; Christensen, AB;
Published by: Journal of Geophysical Research-Part A-Space Physics Published on:
YEAR: 2004   DOI:
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The stellar occultation technique: Past achievements, recent developments, and future challenges
Yee, J-H; Vervack, RJ; DeMajistre, R;
Published by: Occultations for Probing Atmosphere and Climate Published on:
YEAR: 2004   DOI:
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2003 |
TIMED instruments
Yee, Jeng-Hwa; Talaat, Elsayed; Christensen, Andrew; Killeen, Timothy; Russell, James; Woods, Thomas;
Published by: Johns Hopkins APL Technical Digest Published on:
YEAR: 2003   DOI:
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TIMED science: First light
Talaat, Elsayed; Yee, Jeng-Hwa; Christensen, Andrew; Killeen, Timothy; Russell, James; Woods, Thomas;
Published by: Johns Hopkins APL technical digest Published on:
YEAR: 2003   DOI:
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TIMED mission science overview
BACKGROUND Although our knowledge of the near-Earth space environment has increased enormously since the start of the Space Age, many significant gaps still exist, and our
Yee, Jeng-Hwa;
Published by: John Hopkins APL Technical Digest Published on:
YEAR: 2003   DOI:
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Advanced technology and mission operations concepts employed on NASA s TIMED mission
Yee, Jeng-Hwa; Rodberg, Elliot; Harvey, Raymond; Kusnierkiewicz, David; Knopf, William; Grunberger, Paul; Grant, David; Cameron, Glen;
Published by: Published on:
YEAR: 2003   DOI:
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Studies on the coupling between the neutral winds and the ionosphere at low latitudes
Talaat, ER; DeMajistre, R; Kil, H; Yee, JH; Paxton, L; Azeem, SM; Crowley, G; Christensen, A; Roble, RG;
Published by: Published on:
YEAR: 2003   DOI:
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The Hump in the Ultraviolet Spectra of Polar Mesospheric Clouds
Morrison, D; Carbary, J; Yee, J;
Published by: Published on:
YEAR: 2003   DOI:
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Overview and science hightlights from the TIMED mission
Yee, JH;
Published by: Published on:
YEAR: 2003   DOI:
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The role of emerging technologies in imagery for disaster monitoring and disaster relief assistance
Paxton, Larry; Yee, Jeng-Hwa;
Published by: Acta Astronautica Published on:
YEAR: 2003   DOI:
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2002 |
Comparison of TIMED/GUVI inferred nighttime electron density with ionospheric observations and models
Talaat, ER; DeMajistre, R; Paxton, L; Yee, J; Goncharenko, LP; Crowley, G; Azeem, S; Shpynev, B; Zhou, Q; Kil, H; , others;
Published by: Published on:
YEAR: 2002   DOI:
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Atmospheric remote sensing using a combined extinctive and refractive stellar occultation technique 1. Overview and proof-of-concept observations
Yee, Jeng-Hwa; Vervack, Ronald; DeMajistre, Robert; Morgan, Frank; Carbary, James; Romick, Gerald; Morrison, Daniel; Lloyd, Steven; DeCola, Philip; Paxton, Larry; , others;
Published by: Journal of Geophysical Research: Atmospheres Published on:
YEAR: 2002   DOI:
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2001 |
Applications of Global Ultraviolet Imaging Data to the Prediction of Satellite Drag in Low-Earth Orbit
Wolven, BC; Paxton, LJ; Morrison, D; Zhu, X; Talaat, E; Zhang, Y; Kil, H; Meng, C; Yee, J;
Published by: Published on:
YEAR: 2001   DOI:
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2000 |
Nighttime O 2 and O 3 profiles measured by MSX/UVISI using stellar occultation techniques
Yee, Jeng-Hwa; DeMajistre, Robert; Vervack, Ronald; Morgan, Prank; Carbary, James; Romick, Gerald; Morrison, Daniel; Lloyd, Steven; DeCola, Philip; Paxton, Larry; , others;
Published by: Washington DC American Geophysical Union Geophysical Monograph Series Published on:
YEAR: 2000   DOI:
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1999 |
Overview of TIMED
Yee, Jeng-Hwa; Cameron, Glen; Kusnierkiewicz, David;
Published by: Published on:
YEAR: 1999   DOI:
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