| 2014 |
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Configuration of the local interstellar magnetic field
Frisch, Priscilla; Andersson, B; Berdhyugin, A; Funsten, HO; DeMajistre, R; Magalhaes, A; McComas, D; , Piirola; Schwadron, N; Seriacopi, D; , others;
Published by: Published on:
YEAR: 2014 DOI:
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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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High sensitivity trace gas sensor for planetary atmospheres: miniaturized Mars methane monitor
Englert, Christoph; Stevens, Michael; Brown, Charles; Harlander, John; DeMajistre, Robert; Marr, Kenneth;
Published by: Journal of Applied Remote Sensing Published on:
YEAR: 2014 DOI:
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| 2013 |
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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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Visualizing the fully three-dimensional plasmaspheric and ring current distribution from global EUV and ENA imaging
Zimmerman, MI; Hsieh, SW; Brandt, PC; Vandegriff, JD; Stephens, GK; Toigo, AD; Keika, K; Kusterer, MB; DeMajistre, R;
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YEAR: 2013 DOI:
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| 2012 |
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Space Weather Products from UV Imagers in Low Earth Orbit-Providing Key Information about the ITM Environment
Romeo, G; Paxton, LJ; Schaefer, RK; DeMajistre, R; Comberiate, J; Hsieh, SW; Miller, ES; Weiss, M; Wolven, BC; Zhang, Y;
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YEAR: 2012 DOI:
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Variations in the heliospheric polar energetic neutral atom flux observed by the Interstellar Boundary Explorer
Reisenfeld, DB; Allegrini, F; Bzowski, M; Crew, GB; DeMajistre, R; Frisch, P; Funsten, HO; Fuselier, SA; Janzen, PH; Kubiak, MA; , others;
Published by: The Astrophysical Journal Published on:
YEAR: 2012 DOI:
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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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Ultraviolet Remote Sensing of Nitric Oxide in the Thermosphere Using the TIMED/GUVI Instrument
DeMajistre, R; Wolven, BC; Paxton, LJ; Zhang, Y; Schaefer, RK; Bailey, SM; Yonker, JD; Thurairajah, B;
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YEAR: 2012 DOI:
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New and Improved GUVI Data Products for ITM Research
Schaefer, RK; Paxton, LJ; DeMajistre, R; Comberiate, J; Hsieh, SW; Miller, ES; Romeo, G; Weiss, M; Wolven, BC; Zhang, Y;
Published by: Published on:
YEAR: 2012 DOI:
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| 2011 |
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Estimating Dayside Regions of Dayglow-Free 135.6 nm UV Radiances for Data Assimilation
Aiello, John; Toigo, Anthony; DeMajistre, Robert; Schaefer, Robert; Paxton, Larry;
Published by: Published on:
YEAR: 2011 DOI:
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Separation of the Interstellar Boundary Explorer ribbon from globally distributed energetic neutral atom flux
Schwadron, Nathan; Allegrini, F; Bzowski, Maciej; Christian, ER; Crew, GB; Dayeh, M; DeMajistre, R; Frisch, P; Funsten, HO; Fuselier, SA; , others;
Published by: The Astrophysical Journal Published on:
YEAR: 2011 DOI:
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Mutual Neutralization of Atomic Oxygen Ions Over the Course of the Solar Cycle and Its Effects on Ionospheric Remote Sensing
Comberiate, J; DeMajistre, R; Schaefer, RK; Zhang, Y; Paxton, LJ;
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YEAR: 2011 DOI:
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| 2010 |
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Modeling of multiple effects of atmospheric tides on the ionosphere: An examination of possible coupling mechanisms responsible for the longitudinal structure of the equatorial ionosphere
England, S.; Immel, T.; Huba, J.; Hagan, M.; Maute, A.; DeMajistre, R.;
Published by: Journal of Geophysical Research Published on: Jan-01-2010
YEAR: 2010 DOI: 10.1029/2009JA014894
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Evolving outer heliosphere: Large-scale stability and time variations observed by the Interstellar Boundary Explorer
McComas, DJ; Bzowski, M; Frisch, P; Crew, GB; Dayeh, MA; DeMajistre, R; Funsten, HO; Fuselier, SA; Gruntman, M; Janzen, P; , others;
Published by: Journal of Geophysical Research: Space Physics Published on:
YEAR: 2010 DOI:
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Online 3-D Visualization of ENA Inversions with Simultaneous In-situ Measurements
Kusterer, M; Brandt, PC; DeMajistre, R; Hsieh, SW; Vandegriff, JD;
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YEAR: 2010 DOI:
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| 2009 |
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The effect of non-migrating tides on the morphology of the equatorial ionospheric anomaly: seasonal variability
England, Scott; Zhang, Xiaoli; Immel, Thomas; Forbes, Jeffrey; DeMajistre, Robert;
Published by: Earth Planets Space Published on:
YEAR: 2009 DOI:
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Upward propagating tidal effects across the E-and F-regions of the ionosphere
Immel, Thomas; England, Scott; Zhang, Xiaoli; Forbes, Jeffrey; DeMajistre, Robert;
Published by: Earth, planets and space Published on:
YEAR: 2009 DOI:
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| 2008 |
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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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| 2007 |
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Comparison of ionospheric measurements made by digisondes with those inferred from ultraviolet airglow
DeMajistre, R.; Paxton, L.; Bilitza, D.;
Published by: Advances in Space Research Published on: Jan-01-2007
YEAR: 2007 DOI: 10.1016/j.asr.2006.09.037
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The Response of the Thermosphere and Ionosphere to Magnetospheric Inputs as Determined from LEO UV Remote Sensing Measurements-Model/Data Comparisons
Paxton, LJ; Zhang, Y; Ridley, A; Christensen, A; DeMajistre, R; Schaefer, R; Morrison, D;
Published by: Published on:
YEAR: 2007 DOI:
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Monitoring the Dayside Equatorial Anomalies With 135.6 nm Limb Emission
Schaefer, RK; DeMajistre, R; 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;
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YEAR: 2007 DOI:
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| 2006 |
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F-region Pedersen conductivity deduced using the TIMED/GUVI limb retrievals
Kil, H.; DeMajistre, M.; Paxton, L.; Zhang, Y.;
Published by: Annales Geophysicae Published on: Jan-01-2006
YEAR: 2006 DOI: 10.5194/angeo-24-1311-2006
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Nighttime F-region morphology in the low and middle latitudes seen from DMSP F15 and TIMED/GUVI
We investigate the seasonal, longitudinal, and altitudinal variations of the FF-region morphology at 2100\textendash2300\ LT in the low- and middle-latitudes using the data collected in August, September, and November of 2003. The topside morphology is investigated using in situ measurements of the O+O+ fraction and total ion density by the Defense Meteorological Satellite Program (DMSP) F15 satellite. The morphology of the equatorial ionization anomaly (EIA) near the FF peak altitude is investigated using ...
Kil, Hyosub; DeMajistre, Robert; Paxton, L.; Zhang, Yongliang;
Published by: Journal of Atmospheric and Solar-Terrestrial Physics Published on: 09/2006
YEAR: 2006 DOI: 10.1016/j.jastp.2006.05.024
Equatorial ionization anomaly; FF-region plasma distribution; low-latitude ionosphere; Neutral wind
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TIMED/GUVI and DMSP/SSUSI-Data Products for Space Weather
Hsieh, S; Paxton, L; Zhang, Y; DeMajistre, R; Wolven, B; Morrison, D; Schaefer, R;
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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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F-region Pedersen conductivity deduced using the TIMED/GUVI limb retrievals
Kil, H; DeMajistre, M; Paxton, LJ; Zhang, Y;
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YEAR: 2006 DOI:
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Theoretical Model of Electron Density Distribution at Low Latitudes: Validation With GUVI Data
Basu, B; Retterer, J; DeMajistre, R; de La Beaujardiere, O;
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YEAR: 2006 DOI:
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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 |
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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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Comparisons of Electron Density Profiles Derived From TIMED/GUVI Data With Ionosonde Measurements.
DeMajistre, R; Paxton, LJ; Bilitza, D;
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YEAR: 2005 DOI:
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AURORA: The Next Generation Space Weather Sensor for NPOESS
Paxton, L; Morrison, D; Santo, A; Ogorzalek, B; Goldsten, J; Boldt, J; Kil, H; Zhang, Y; DeMajistre, R; Wolven, B; , others;
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YEAR: 2005 DOI:
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Parametric analysis of nightside conductance effects on inner magnetospheric dynamics for the 17 April 2002 storm
Liemohn, Michael; Ridley, Aaron; Brandt, Pontus; Gallagher, Dennis; Kozyra, Janet; Ober, Daniel; Mitchell, Donald; Roelof, Edmond; DeMajistre, Robert;
Published by: Journal of Geophysical Research: Space Physics Published on:
YEAR: 2005 DOI:
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On the relation between sub-auroral electric fields, the ring current and the plasmasphere
Brandt, PC; Goldstein, J; Anderson, PC; Anderson, BJ; DeMajistre, R; Roelof, EC;
Published by: Geophysical monograph Published on:
YEAR: 2005 DOI:
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Scintillation Forecasting Using NPOESS Data
Basu, B; Retterer, J; DeMajistre, R; de La Beaujardiere, O; Scro, K;
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YEAR: 2005 DOI:
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Inverse methods applied to space based remote sensing data: Methods and case studies
DeMajistre, Robert;
Published by: Published on:
YEAR: 2005 DOI:
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Calibration/Validation of the SSUSI Instrument on DMSP F16: Overview \& Nightside Analysis
Straus, PR; Paxton, LJ; DeMajistre, R; Morrison, D;
Published by: Published on:
YEAR: 2005 DOI:
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GUVI Observations of storm-time control and coupling of the ionosphere and thermosphere
Paxton, L.; Kil, H.; DeMajistre, R.; Zhang, Y.;
Published by: special ISEA issue Published on:
YEAR: 2005 DOI:
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Imaging the Low-Latitude Ionosphere: Future Collaborations with C/NOFS
Paxton, L.; Kil, H.; DeMajistre, R.; Zhang, Y.; Morrison, D.; Wolven, B.; Meng, C.-I;
Published by: Published on:
YEAR: 2005 DOI:
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TIMED/GUVI Observations of the Ionosphere and Thermosphere Interaction
Paxton, L.; Kil, H.; DeMajistre, R.; Zhang, Y.; Morrison, D.; Wolven, B.; Meng, C.-I.;
Published by: Ann. Geophys., special ISEA Published on:
YEAR: 2005 DOI:
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Observations of solar and magnetospheric inputs and atmospheric responses to the January 2005 long duration flares and fast coronal mass ejections
Paxton, LJ; Kozyra, J; Demajistre, B; Kil, H; Morrison, D; Wolven, B; Mitchell, D; Brandt, P; Zhang, Y; Meng, C;
Published by: Published on:
YEAR: 2005 DOI:
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| 2004 |
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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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F -region plasma distribution seen from TIMED/GUVI and its relation to the equatorial spread F activity
The OI 135.6-nm nightglow images from GUVI on board the TIMED satellite provide a unique opportunity to investigate the global plasma distribution in the F region. We report that there exist large seasonal-longitudinal variations in the F-region plasma density which may explain some aspects of the equatorial spread F (ESF) morphology. We suggest that an occurrence of high plasma density is responsible for the strong ESF activity during equinox periods at most longitudes, whereas an occurrence of ...
Kil, Hyosub; DeMajistre, Robert; Paxton, L.;
Published by: Geophysical Research Letters Published on: 03/2004
YEAR: 2004 DOI: 10.1029/2003GL018703
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GUVI/TIMED Observations of the auroral inputs and thermospheric response during the October and November 2003 Superstorms
Zhang, Y; Paxton, LJ; Kozyra, JU; DeMajistre, R; Kil, H; Morrison, D; Wolven, B; Brandt, PC; Mitchell, DG; Talaat, E;
Published by: Published on:
YEAR: 2004 DOI:
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A climatology of the nighttime ionosphere acquired by the TIMED/GUVI instrument and the changes associated with storm time
DeMajistre, R; Kil, H; Paxton, LJ;
Published by: Published on:
YEAR: 2004 DOI:
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