GUVI Biblio





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Found 213 entries in the Bibliography.


Showing entries from 101 through 150


2009

Global bubble distribution seen from ROCSAT-1 and its association with the evening prereversal enhancement

Kil, Hyosub; Paxton, Larry; Oh, Seung-Jun;

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

YEAR: 2009     DOI: 10.1029/2008JA013672

The 27-day modulation of the low-latitude ionosphere during a solar maximum

Min, Kyoung; Park, Jaeheung; Kim, Heejun; Kim, Vitaly; Kil, Hyosub; Lee, Jaejin; Rentz, Stefanie; Lühr, Hermann; Paxton, Larry;

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

YEAR: 2009     DOI:

2008

Effects of solar activity variations on the low latitude topside nighttime ionosphere

Park, S.M.; Kim, H.; Min, S.; Park, J.; Lee, J.H.; Kil, H.; Paxton, L.; Su, S.-Y.; Lee, J.; Min, K.W.;

Published by: Advances in Space Research      Published on: Jan-08-2008

YEAR: 2008     DOI: 10.1016/j.asr.2007.11.031

Wave structures of the plasma density and vertical E$\times$ B drift in low-latitude F region

We investigate the seasonal, longitudinal, local time (LT), and altitudinal variations of the F region morphology at low latitudes using data from the first Republic of China satellite (ROCSAT-1), Global Ultraviolet Imager (GUVI), on board the Thermosphere Ionosphere Mesosphere Energetics and Dynamics (TIMED) satellite, and the Defense Meteorological Satellite Program (DMSP) F13 and F15 satellites. Signatures of the longitudinally periodic plasma density structure emerge before 0900 LT. The wave structure is established befo ...

Kil, H.; Talaat, E.; Oh, S.-J.; Paxton, L.; England, S.; Su, S.-Y.;

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

YEAR: 2008     DOI: 10.1029/2008JA013106

Equatorial ionosphere; wave structure; atmospheric tide

GUVI observations of the ionosphere during the declining phase of the solar cycle

Paxton, LJ; Comberiate, J; Zhang, Y; Kil, H; Christensen, A;

Published by:       Published on:

YEAR: 2008     DOI:

The one-to-one relationship between the pre-reversal enhancement and equatorial plasma bubbles observed from ROCSAT and CNOFS/CINDI

Kil, H; Paxton, LJ; Heelis, RA;

Published by:       Published on:

YEAR: 2008     DOI:

The effect of the vertical $ E $\$$\backslash$times$\$ B $ drift on the formation of the longitudinal plasma density structure in the low-latitude F-region

Oh, SJ; Kil, H; Kim, W; Paxton, LJ; Kim, YH;

Published by: Bulletin of the Korean Space Science Society      Published on:

YEAR: 2008     DOI:

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:

Wave structures of the plasma density and vertical E$\times$ B drift in low-latitude F region

Kil, H; Talaat, ER; Oh, S-J; Paxton, LJ; England, SL; Su, S-Y;

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

YEAR: 2008     DOI:

The role of the vertical E$\times$ B drift for the formation of the longitudinal plasma density structure in the low-latitude F region

Oh, S-J; Kil, H; Kim, W-T; Paxton, LJ; Kim, YH;

Published by:       Published on:

YEAR: 2008     DOI:

The temporal variability of the longitudinal plasma density structure in the low-latitude F-region

Oh, SJ; Kil, H; Kim, YH;

Published by: Bulletin of the Korean Space Science Society      Published on:

YEAR: 2008     DOI:

Abnormal vertical drifts of equatorial plasma before dawn and after sunset during the storm of 29—30 October 2003

Kil, Hyosub; Oh, Seung-Jun; Paxton, Larry;

Published by: Geophysical research letters      Published on:

YEAR: 2008     DOI:

Retrieval of 3-D equatorial plasma bubble characteristics from the TIMED/GUVI nightglow images.

Oh, SJ; Kil, H;

Published by:       Published on:

YEAR: 2008     DOI:

2007

A climatology of nonmigrating semidiurnal tides from TIMED Doppler Interferometer (TIDI) wind data

Oberheide, J.; Wu, Q.; Killeen, T.L.; Hagan, M.E.; Roble, R.G.;

Published by: Journal of Atmospheric and Solar-Terrestrial Physics      Published on: Jan-12-2007

YEAR: 2007     DOI: 10.1016/j.jastp.2007.05.010

The ionospheric and thermospheric response to CMEs: Challenges and successes

Burns, A.G.; Solomon, S.C.; Wang, W.; Killeen, T.L.;

Published by: Journal of Atmospheric and Solar-Terrestrial Physics      Published on: Jan-02-2007

YEAR: 2007     DOI: 10.1016/j.jastp.2006.06.010

Retrieval of 2-D equatorial plasma bubble images from the TIMED/GUVI data

Oh, SJ; Kil, H;

Published by:       Published on:

YEAR: 2007     DOI:

Longitudinal structure of the vertical E$\times$ B drift and ion density seen from ROCSAT-1

Kil, Hyosub; Oh, S-J; Kelley, MC; Paxton, LJ; England, SL; Talaat, E; Min, K-W; Su, S-Y;

Published by: Geophysical Research Letters      Published on:

YEAR: 2007     DOI:

The effect of the vertical ExB drift on the longitudinal plasma density structure in low-mid latitudes

Kil, H; Oh, S; Paxton, LJ; Talaat, E;

Published by:       Published on:

YEAR: 2007     DOI:

Spike-like change of the vertical E$\times$ B drift in the equatorial region during very large geomagnetic storms

Kil, H; Oh, S-J; Paxton, LJ; Zhang, Y; Su, S-Y; Min, K-W;

Published by: Geophysical research letters      Published on:

YEAR: 2007     DOI:

2006

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

Nightside thermospheric FUV emissions due to energetic neutral atom precipitation during magnetic superstorms

Zhang, Y.; Paxton, L.; Kozyra, J.; Kil, H.; Brandt, P.;

Published by: Journal of Geophysical Research      Published on: Jan-01-2006

YEAR: 2006     DOI: 10.1029/2005JA011152

Ionospheric disturbances during the magnetic storm of 15 July 2000: Role of the fountain effect and plasma bubbles for the formation of large equatorial plasma density depletions

We investigate the role of the fountain effect and plasma bubbles for the formation of the large equatorial plasma depletions during the geomagnetic storm of 15 July 2000. The large equatorial plasma depletions are detected in the Atlantic sector on the night of the 15th by the Defense Meteorological Satellite Program (DMSP) F15 and the first Republic of China Satellite (ROCSAT-1). The observations show discontinuous drop of the plasma density at the walls of the depletions, flat plasma density inside the depletions, and ...

Kil, Hyosub; Paxton, Larry;

Published by: Journal of Geophysical Research      Published on: 12/2006

YEAR: 2006     DOI: 10.1029/2006JA011742

Equatorial ionosphere; geomagnetic storm; ionospheric disturbances

Characteristics of the storm-induced big bubbles (SIBBs)

Large equatorial plasma depletions, referred to as storm-induced big bubbles (SIBBs), are detected from the Defense Meteorological Satellite Program F15 and from the first Republic of China Satellite during the large magnetic storms of 31 March 2001, 29 October 2003, and 20 November 2003. They occur in the equatorial region at night, are elongated in the north-south direction, have steep walls, and always coexist with plasma bubbles. These observations are consistent with the SIBB characteristics described in the companio ...

Kil, Hyosub; Paxton, L.; Su, Shin-Yi; Zhang, Yongliang; Yeh, Hweyching;

Published by: Journal of Geophysical Research      Published on: 10/2006

YEAR: 2006     DOI: 10.1029/2006JA011743

Equatorial ionosphere; geomagnetic storm; irregularities

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

Vertical variations in the N2 mass mixing ratio during a thermospheric storm that have been simulated using a coupled magnetosphere-ionosphere-thermosphere model

Burns, AG; Wang, W; Killeen, TL; Solomon, SC; Wiltberger, M;

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

YEAR: 2006     DOI:

Observing the Coupled Ionosphere-Thermosphere System: From Solar Maximum to Solar Minimum and Beyond

Paxton, L; Morrison, D; Zhang, Y; Kil, H; Wolven, B; Comberiate, J; Meng, C; Kozyra, J; Christensen, A;

Published by:       Published on:

YEAR: 2006     DOI:

GUVI Observations of Thermosphere/Ionosphere Coupling

Paxton, L; Zhang, Y; Kil, H; Morrison, D; Wolven, B; Meng, C; Christensen, A;

Published by:       Published on:

YEAR: 2006     DOI:

Investigation of the dependence of the storm-induced ExB drift on the local time, storm phase, and storm size

Kil, H; Oh, S; Paxton, LJ; Zhang, Y;

Published by:       Published on:

YEAR: 2006     DOI:

Effects of Solar Activity Variations on the Low Latitude Topside Nighttime Ionosphere

Min, K.; Kim, H.; Park, J.; Kil, H.; Lee, J.; Lee, E.;

Published by:       Published on:

YEAR: 2006     DOI:

F-region Pedersen conductivity deduced using the TIMED/GUVI limb retrievals

Kil, H; DeMajistre, M; Paxton, LJ; Zhang, Y;

Published by:       Published on:

YEAR: 2006     DOI:

TIMED Doppler interferometer (TIDI) observations of migrating diurnal and semidiurnal tides

Wu, Qian; Killeen, TL; Ortland, DA; Solomon, SC; Gablehouse, RD; Johnson, RM; Skinner, WR; Niciejewski, RJ; Franke, SJ;

Published by: Journal of atmospheric and solar-terrestrial physics      Published on:

YEAR: 2006     DOI:

The global morphology of the vertical ExB drift in the equatorial region

Kil, H; Oh, S; Paxton, LJ; Min, K; Su, S;

Published by:       Published on:

YEAR: 2006     DOI:

2005

Undulations on the equatorward edge of the diffuse proton aurora: TIMED/GUVI observations

Undulations on the equatorward edge of the diffuse proton aurora have been identified by using TIMED/GUVI auroral images in the far ultraviolet wavelengths. While undulations have been previously reported on the duskside (Lui et al., 1982), GUVI observations show the undulation also occurs in the dayside, nightside, and morningside. The GUVI proton auroral images provide direct optical evidence that the undulations occur in the proton aurora. It is also the first detection of the undulation in the dayside indicating stron ...

Zhang, Y.; Paxton, L.; Morrison, D.; T. Y. Lui, A.; Kil, H.; Wolven, B.; Meng, C.-I.; Christensen, A.;

Published by: Journal of Geophysical Research      Published on: 09/2005

YEAR: 2005     DOI: 10.1029/2004JA010668

auroral undulation; K-H instability; Magnetic storm; plasma convection

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:

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:

Formation of the large equatorial plasma depletions during superstorms by the ionosphere-thermosphere coupling effect

Kil, H; Paxton, L; Crowley, G; Su, S; Zhang, Y;

Published by:       Published on:

YEAR: 2005     DOI:

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;

Published by:       Published on:

YEAR: 2005     DOI:

Auroral Undulations During Magnetic Storms: TIMED/GUVI Observations

Zhang, Y; Paxton, LJ; Morrison, D; Lui, T; Kil, H; Wolven, B; Meng, CI;

Published by:       Published on:

YEAR: 2005     DOI:

O/N2 morphology during quiet and moderate auroral activity and its relation to TEC

Zhang, Y; Paxton, LJ; Morrison, D; Kil, H; Wolven, B;

Published by:       Published on:

YEAR: 2005     DOI:

Global distribution of equatorial plasma bubbles in the premidnight sector during solar maximum as observed by KOMPSAT-1 and Defense Meteorological Satellite Program F15

Park, Jaeheung; Min, Kyoung; Kim, Vitaly; Kil, Hyosub; Lee, Jae-Jin; Kim, Hee-Jun; Lee, Ensang; Lee, Dae;

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

YEAR: 2005     DOI:

Far-ultraviolet signature of polar cusp during southward IMF Bz observed by TIMED/Global Ultraviolet Imager and DMSP

The coincident TIMED/Global Ultraviolet Imager (TIMED/GUVI) optical and DMSP particle observations have revealed new features of the optical signature of the polar cusp under a southward interplanetary magnetic field (IMF). We have found that cusp auroras usually take the shape of a thin arc with a width around 100\textendash200 km. This provides the first far-ultraviolet evidence of the narrow cusp under a southward IMF [

Zhang, Y; Meng, C-I; Paxton, LJ; Morrison, D; Wolven, B; Kil, H; Newell, P; Wing, S; Christensen, AB;

Published by: Journal of Geophysical Research: Space Physics (1978\textendash2012)      Published on:

YEAR: 2005     DOI: 10.1029/2004JA010707

cusp aurora

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:

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:

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:

Nightside detached auroras due to precipitating protons/ions during intense magnetic storms

Nightside detached auroras (NDA) during intense magnetic storms are studied by using FUV image data from Thermosphere-Ionosphere-Mesosphere Energetics and Dynamics (TIMED)/Global Ultraviolet Imager (GUVI), Imager for Magnetopause-to-Aurora Global Exploration (IMAGE)/FUV, and particle data from DMSP/SSJ/4 instruments. We found that NDA are caused by proton/ion precipitation only. Thin arc-shaped NDA are very likely due to soft (\<1 keV) proton/ion precipitation. Thick or patch-shaped NDA are caused by energetic (\~10 ke ...

Zhang, Y; Paxton, LJ; Morrison, D; Wolven, B; Kil, H; Wing, S;

Published by: Journal of Geophysical Research: Space Physics (1978\textendash2012)      Published on:

YEAR: 2005     DOI: 10.1029/2004JA010498

detached aurora; proton precipitation; ring current; Magnetic storm

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:

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:

Equatorial ionospheric disturbances during super storms seen from TIMED/GUVI, DMSP and ROCSAT-1

Kil, H; Paxton, LJ; Zhang, Y; Su, S; Oh, S;

Published by:       Published on:

YEAR: 2005     DOI:

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:

2004

Coincident equatorial bubble detection by TIMED/GUVI and ROCSAT-1

Kil, Hyosub; Su, S.-Y.; Paxton, L.; Wolven, B.; Zhang, Y.; Morrison, D.; Yeh, H.;

Published by: Geophysical Research Letters      Published on: Jan-01-2004

YEAR: 2004     DOI: 10.1029/2003GL018696



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