GUVI Biblio





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Found 23 entries in the Bibliography.


Showing entries from 1 through 23


2022

Two different properties of ionospheric perturbations detected in the vicinity of the Korean Peninsula after the Hunga-Tonga volcanic eruption on 15 January 2022

Hong, Junseok; Kil, Hyosub; Lee, Woo; Kwak, Young-Sil; Choi, Byung-Kyu; Paxton, Larry;

Published by:       Published on:

YEAR: 2022     DOI:

2019

Assimilation of Multiple Data Types to a Regional Ionosphere Model With a 3D-Var Algorithm (IDA4D)

For the purpose of building a regional (bound 20\textendash60\textdegreeN in latitude and 110\textendash160\textdegreeE in longitude) ionospheric nowcast model, we investigated the performance of IDA4D (Ionospheric Data Assimilation Four-Dimension) technique considering International Reference Ionosphere model as the background. The data utilized in assimilation were slant total electron content (STEC) from 27 ground GPS (Global Positioning System) receiver stations and NmF2 (ionospheric F2 peak density) from five ionoson ...

Mengist, Chalachew; Ssessanga, Nicholas; Jeong, Se-Heon; Kim, Jeong-Heon; Kim, Yong; Kwak, Young-Sil;

Published by: Space Weather      Published on: 06/2019

YEAR: 2019     DOI: 10.1029/2019SW002159

2015

Morphology of the postsunset vortex in the equatorial ionospheric plasma drift

Lee, Woo; Kil, Hyosub; Kwak, Young-Sil; Paxton, Larry;

Published by: Geophysical Research Letters      Published on:

YEAR: 2015     DOI:

2014

Investigation of the Tidal Signatures in the Thermosphere Using the TIMED/GUVI Data

Kil, Hyosub; Paxton, Larry; Zhang, Yongliang; Kwak, Young-Sil; Lee, Woo;

Published by:       Published on:

YEAR: 2014     DOI:

The role of the postsunset vortex in the creation of turbulence in the bottomside F region

Lee, Woo; Kil, Hyosub; Kwak, Young-Sil; Paxton, Larry;

Published by:       Published on:

YEAR: 2014     DOI:

The zonal motion of equatorial plasma bubbles relative to the background ionosphere

Kil, Hyosub; Lee, Woo; Kwak, Young-Sil; Zhang, Yongliang; Paxton, Larry; Milla, Marco;

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

YEAR: 2014     DOI:

The zonal motion of equatorial plasma bubbles relative to the background ionosphere

Kil, Hyosub; Lee, Woo; Kwak, Young-Sil; Zhang, Yongliang; Paxton, Larry; Milla, Marco;

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

YEAR: 2014     DOI:

Equatorial broad plasma depletions associated with the enhanced fountain effect

Lee, Woo; Kil, Hyosub; Kwak, Young-Sil; Paxton, Larry; Zhang, Yongliang; Galkin, Ivan; Batista, Inez;

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

YEAR: 2014     DOI:

2013

The Study of the origin of broad plasma depletions in the equatorial F region

Oh, S; Lee, W; Kil, H; Kwak, Y; Paxton, L; Zhang, Y;

Published by:       Published on:

YEAR: 2013     DOI:

Drivers of the hemispheric asymmetry in the low-latitude electron density distribution

Kil, H; Kwak, Y; Lee, W; Paxton, L; Zhang, Y;

Published by:       Published on:

YEAR: 2013     DOI:

Seasonal and Latitudinal Variations of the F2-Layer during Magnetic Storms

Park, Yoon-Kyung; Kwak, Young-Sil; Ahn, Byung-Ho;

Published by: Journal of Astronomy and Space Sciences      Published on:

YEAR: 2013     DOI:

2012

Day-to-day variability of equatorial anomaly in GPS-TEC during low solar activity period

Aggarwal, Malini; Joshi, H.P.; Iyer, K.N.; Kwak, Y.-S.; Lee, J.J.; Chandra, H.; Cho, K.S.;

Published by: Advances in Space Research      Published on: Jan-06-2012

YEAR: 2012     DOI: 10.1016/j.asr.2012.03.005

Persistent longitudinal features in the low-latitude ionosphere

Kil, H; Lee, WK; Kwak, Y-S; Oh, S-J; Paxton, LJ; Zhang, Y;

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

YEAR: 2012     DOI:

2011

O and N 2 disturbances in the F region during the 20 November 2003 storm seen from TIMED/GUVI

Kil, H.; Kwak, Y.-S.; Paxton, L.; Meier, R.; Zhang, Y.;

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

YEAR: 2011     DOI: 10.1029/2010JA016227

The source of the longitudinal asymmetry in the ionospheric tidal structure

Kil, H.; Kwak, Y.-S.; Oh, S.-J.; Talaat, E.; Paxton, L.; Zhang, Y.;

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

YEAR: 2011     DOI: 10.1029/2011JA016781

Longitudinal asymmetry in the crest intensity of the ionospheric tidal structure

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

Published by:       Published on:

YEAR: 2011     DOI:

O and N2 disturbances in the F region during the 20 November 2003 storm seen from TIMED/GUVI

Kil, H; Kwak, Y-S; Paxton, LJ; Meier, RR; Zhang, Y;

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

YEAR: 2011     DOI:

2010

Is DE2 the source of the ionospheric wave number 3 longitudinal structure?

Kil, H.; Paxton, L.; Lee, W.; Ren, Z.; Oh, S.-J.; Kwak, Y.-S.;

Published by: Journal of Geophysical Research      Published on: Jan-01-2010

YEAR: 2010     DOI: 10.1029/2010JA015979

On and N2 disturbances in the F region during the 20 November 2003 storm seen from TIMED/GUVI

Kil, Hyosub; Paxton, Larry; Kwak, Young-Sil; Meier, Robert; Zhang, Yongliang;

Published by: 38th COSPAR Scientific Assembly      Published on:

YEAR: 2010     DOI:

Seasonal, diurnal, and solar cycle variations of the longitudinal wave structure in the low-latitude thermosphere

Kwak, Y; Kil, H; Lee, W; Cho, K;

Published by:       Published on:

YEAR: 2010     DOI:

2009

The Variability of the Zonal Plasma Drift in the Equatorial F Region

Kil, H; Kang, C; Oh, S; Kwak, Y; Lee, W; Paxton, LJ;

Published by:       Published on:

YEAR: 2009     DOI:

LONGITUDINAL VARIATION OF THE ANNUAL AND HEMISPHERIC ASYMMETRIES OF THE LOW-MIDDLE LATITUDE IONOSPHERE

Kwak, Y; Kil, H; Oh, S; Lee, W; Forbes, JM; Cho, K;

Published by:       Published on:

YEAR: 2009     DOI:

Reversed ionospheric convections during the November 2004 storm: Impact on the upper atmosphere

Using the Assimilative Mapping of Ionospheric Electrodynamics (AMIE) procedure, a particular period (2000–2350 UT on 9 November) in the November 2004 storm is studied. During this time interval, IMF Bz was strongly northward along with a high solar wind dynamic pressure, favorable conditions to form reversed convection in the polar region. Indeed, the AMIE outputs show strong reversed convection cells in both hemispheres for a long period (>1 h), which have rarely been observed. The impact on the thermospheric neutral wind ...

Deng, Yue; Lu, Gang; Kwak, Young-Sil; Sutton, Eric; Forbes, Jeffrey; Solomon, Stan;

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

YEAR: 2009     DOI: https://doi.org/10.1029/2008JA013793

reversed convection; November 2004 storm



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