GUVI Biblio

Ionosphere around equinoxes during low solar activity

Liu, Libo; He, Maosheng; Yue, Xin\textquoterightan; Ning, Baiqi; Wan, Weixing;

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

YEAR: 2010     DOI: 10.1029/2010JA015318

Ionospheric response to the initial phase of geomagnetic storms: Common features

Wang, Wenbin; Lei, Jiuhou; Burns, Alan; Solomon, Stanley; Wiltberger, Michael; Xu, JiYao; Zhang, Yongliang; Paxton, L.; Coster, Anthea;

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

YEAR: 2010     DOI: 10.1029/2009JA014461

Seasonal and hemispheric variations of the total auroral precipitation energy flux from TIMED/GUVI

Luan, Xiaoli; Wang, Wenbin; Burns, Alan; Solomon, Stanley; Zhang, Yongliang; Paxton, L.;

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

YEAR: 2010     DOI: 10.1029/2009JA015063

Simulated wave number 4 structure in equatorial F -region vertical plasma drifts

Ren, Zhipeng; Wan, Weixing; Xiong, Jiangang; Liu, Libo;

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

YEAR: 2010     DOI: 10.1029/2009JA014746

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:

Simulated wave number 4 structure in equatorial F-region vertical plasma drifts

Ren, Zhipeng; Wan, Weixing; Xiong, Jiangang; Liu, Libo;

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

YEAR: 2010     DOI:

Variability study of the crest-to-trough TEC ratio of the equatorial ionization anomaly around 120\textdegreeE longitude

Zhang, Man-Lian; Wan, Weixing; Liu, Libo; Ning, Baiqi;

Published by: Advances in Space Research      Published on: Jan-06-2009

YEAR: 2009     DOI: 10.1016/j.asr.2008.09.031

Ionospheric response to the geomagnetic storm on 13\textendash17 April 2006 in the West Pacific region

This paper presents an investigation of geomagnetic storm effects in the equatorial and middle-low latitude F-region in the West Pacific sector during the intense geomagnetic storm on 13\textendash17 April, 2006. The event, preceded by a minor storm, started at 2130 UT on April 13 while interplanetary magnetic field (IMF)\ B_zcomponent was ready to turn southward. From 14\textendash17 the ionosphere was characterized by a large scale enhancement in critical frequency, foF2 (4\~6\ MHz) and tota ...

Zhao, Biqiang; Wan, Weixing; Liu, Libo; Igarashi, K.; Yumoto, K.; Ning, Baiqi;

Published by: Journal of Atmospheric and Solar-Terrestrial Physics      Published on: Jan-01-2009

YEAR: 2009     DOI: 10.1016/j.jastp.2008.09.029

Magnetic storm; total electron content; Mid-low latitude

Unusual declining phase of solar cycle 23: Weak semi-annual variations of auroral hemispheric power and geomagnetic activity

Luan, Xiaoli; Wang, Wenbin; Burns, Alan; Solomon, Stanley; Zhang, Yongliang; Paxton, L.;

Published by: Geophysical Research Letters      Published on: Jan-01-2009

YEAR: 2009     DOI: 10.1029/2009GL040825

Variability study of the crest-to-trough TEC ratio of the equatorial ionization anomaly around 120 E longitude

Zhang, Man-Lian; Wan, Weixing; Liu, Libo; Ning, Baiqi;

Published by: Advances in Space Research      Published on:

YEAR: 2009     DOI:

The Ionospheric Mid-Latitude Summer Nighttime Anomaly

This paper presents monthly variations of the mid-latitude summer nighttime anomaly (MSNA) of the ionosphere for the first time by using global observations of the FORMOSAT-3/COSMIC (F3/C), NASA TIMED-GUVI, ground-based radars and GPS receiver network. The MSNA is characterized by greater nighttime (19:00 LT - 24:00 LT, or period of larger solar zenith angles) ionospheric electron density than that during daytime (08:00 - 18:00 LT, or period of smaller solar zenith angles) at middle latitudes during solstices. The anomaly sh ...

Lin, C; Chen, C; Hsu, M; Liu, CH; Liu, JG; Burns, AG; Wang, W;

Published by:       Published on:

YEAR: 2009     DOI:

Ionospheric response to the geomagnetic storm on 13–17 April 2006 in the West Pacific region

This paper presents an investigation of geomagnetic storm effects in the equatorial and middle-low latitude F-region in the West Pacific sector during the intense geomagnetic storm on 13–17 April, 2006. The event, preceded by a minor storm, started at 2130 UT on April 13 while interplanetary magnetic field (IMF) Bz component was ready to turn southward. From 14–17 the ionosphere was characterized by a large scale enhancement in critical frequency, foF2 (4∼6MHz) and total electron content (TEC) (∼30TECU, 1TECU=1×1016 ...

Zhao, Biqiang; Wan, Weixing; Liu, Libo; Igarashi, K.; Yumoto, K.; Ning, Baiqi;

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

YEAR: 2009     DOI: https://doi.org/10.1016/j.jastp.2008.09.029

Magnetic storm; total electron content; Mid-low latitude

Design of FUV imaging spectrometer based on crossed Czerny-Turner structure

This article describes the characteristics of the far ultraviolet (FUV) radiation and its applications in the space weather s research and prediction. The FUV imaging spectrometer is irreplaceable to get the FUV radiation data of the earth s upper atmosphere. Some key technologies of FUV spectrometer are analyzed respectively, including window materials, FUV light source, FUV detectors and FUV coating, which offer theoretical foundation for FUV imaging spectrometer. The paper presents a FUV band imaging spectrometer s optica ...

Wu, Yan; Tang, Yi; Ni, Guoqiang; Sheng, Yunlong; Wang, Yongtian; Zeng, Lijiang;

Published by:       Published on:

YEAR: 2009     DOI: 10.1117/12.806967

space weather; far ultraviolet; Imaging spectrometer; crossed Czerny-Turner system; optical design

GCITEM-IGGCAS: A new global coupled ionosphere–thermosphere-electrodynamics model

The Global Coupled Ionosphere–Thermosphere-Electrodynamics Model developed at Institute of Geology and Geophysics, Chinese Academy of Sciences (GCITEM-IGGCAS), is introduced in this paper. This new model self-consistently calculates the time-dependent three-dimensional (3-D) structures of the main thermospheric and ionospheric parameters in the height range from 90 to 600km, including neutral number density of major species O2, N2, and O and minor species N(2D), N(4S), NO, He and Ar; ion number densities of O+ ,O2+, N2+, N ...

Ren, Zhipeng; Wan, Weixing; Liu, Libo;

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

YEAR: 2009     DOI: https://doi.org/10.1016/j.jastp.2009.09.015

thermosphere; Ionosphere; Modeling; Global circulation models

Ionospheric response to the geomagnetic storm on 13—17 April 2006 in the West Pacific region

Zhao, Biqiang; Wan, Weixing; Liu, Libo; Igarashi, K; Yumoto, K; Ning, Baiqi;

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

YEAR: 2009     DOI:

Features of annual and semiannual variations derived from the global ionospheric maps of total electron content

Zhao, B; Wan, W; Liu, L; Mao, T; Ren, Z; Wang, M; Christensen, AB;

Published by:       Published on:

YEAR: 2008     DOI:

Features of annual and semiannual variations derived from the global ionospheric maps of total electron content

Zhao, B; Wan, W; Liu, L; Mao, T; Ren, Z; Wang, M; Christensen, AB;

Published by:       Published on:

YEAR: 2008     DOI:

Longitudinal variations of electron temperature and total ion density in the sunset equatorial topside ionosphere

Based on the DMSP F13 Satellite observations from 1995 to 2005, the longitudinal distributions of the electron temperature (Te) and total ion density (Ni) in the sunset equatorial topside ionosphere are examined. The results suggest that the longitudinal variations of both Te and Ni exhibit obvious seasonal dependence as follows: (1) wavenumber-four longitudinal structure in equinox, (2) three peaks structure in June solstice, and (3) two peaks structure in December solstice. Moreover, the longitudinal variations of Te and N ...

Ren, Zhipeng; Wan, Weixing; Liu, Libo; Zhao, Biqiang; Wei, Yong; Yue, Xinan; Heelis, Roderick;

Published by: Geophysical Research Letters      Published on:

YEAR: 2008     DOI: https://doi.org/10.1029/2007GL032998

topside ionosphere; longitudinal variation

Prestorm enhancements in NmF2 and total electron content at low latitudes

The enhancement of electron concentrations in the ionosphere before geomagnetic storms is one of the open questions. Using ionosonde observations and total electron content (TEC) from Global Positioning System (GPS) measurements along longitude 120°E, we analyzed three low latitude pre-storm enhancement events that occurred on 21 April (day 111) 2001, 29 May (day 149) 2003, and 22 September (day 265) 2001, respectively, in the Asia/Australia sector. All three events (and other two cases on 9 August 2000 and 10 May 2002) sho ...

Liu, Libo; Wan, Weixing; Zhang, Man-Lian; Zhao, Biqiang; Ning, Baiqi;

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

YEAR: 2008     DOI: https://doi.org/10.1029/2007JA012832

Ionosphere; prestorm enhancement; low latitude

Ionosphere disturbances observed throughout Southeast Asia of the superstorm of 20--22 November 2003

Ionospheric disturbances in the Southeast Asian region during the super magnetic storm of 20–22 November 2003 were investigated through an ionosonde chain and a GPS network assisted by the space-borne instruments. At early stage of the storm in the postsunset sector, large enhancements in the critical frequency of F2 layer and total electron content were observed at northern crest region of the equatorial ionization anomaly (EIA), which might be produced by both the storm meridional wind superimposed with traveling atmosph ...

Zhao, B; Wan, W; Tschu, K; Igarashi, K; Kikuchi, T; Nozaki, K; Watari, S; Li, G; Paxton, LJ; Liu, L; , others;

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

YEAR: 2008     DOI: 10.1029/2008JA013054

Magnetic storm; Ionospheric disturbance; mid-low latitudes

Anomalous enhancement of ionospheric electron content in the Asian-Australian region during a geomagnetically quiet day

Zhao, B; Wan, W; Liu, L; Igarashi, K; Nakamura, M; Paxton, LJ; Su, S-Y; Li, G; Ren, Z;

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

YEAR: 2008     DOI:

Wavenumber-4 patterns of the total electron content over the low latitude ionosphere

Wan, W; Liu, L; Pi, X; Zhang, M-L; Ning, B; Xiong, J; Ding, F;

Published by: Geophysical Research Letters      Published on:

YEAR: 2008     DOI:

Variations of Auroral Electron Precipitation Measured by TIMED/GUVI

Luan, X; Wang, W; Burns, A; Zhang, Y; Solomon, S;

Published by:       Published on:

YEAR: 2008     DOI:

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

Features of annual and semiannual variations derived from the global ionospheric maps of total electron content

Zhao, B.; Wan, W.; Liu, L.; Mao, T.; Ren, Z.; Wang, M.; Christensen, A.;

Published by: Annales Geophysicae      Published on: Jan-01-2007

YEAR: 2007     DOI: 10.5194/angeo-25-2513-2007

Features of annual and semiannual variations derived from the global ionospheric maps of total electron content

Zhao, B.; Wan, W.; Liu, L.; Mao, T.; Ren, Z.; Wang, M.; Christensen, A.;

Published by: Annales Geophysicae      Published on: Jan-01-2007

YEAR: 2007     DOI: 10.5194/angeo-25-2513-2007

Plausible effect of atmospheric tides on the equatorial ionosphere observed by the FORMOSAT-3/COSMIC: Three-dimensional electron density structures

Lin, C.; Wang, W.; Hagan, M.; Hsiao, C.; Immel, T.; Hsu, M.; Liu, J; Paxton, L.; Fang, T.; Liu, C.;

Published by: Geophysical Research Letters      Published on: Jan-01-2007

YEAR: 2007     DOI: 10.1029/2007GL029265

Optical/Infrared Signatures for Space-Based Remote Sensing

This report describes work carried out under the Air Force Research Laboratorys basic research task in optical remote-sensing signatures, entitled Optical Infrared Signatures for Space-

Picard, RH; Dewan, EM; , Winick; Neil, RR;

Published by:       Published on:

YEAR: 2007     DOI:

Variations of topside ionospheric scale heights over Millstone Hill during the 30-day incoherent scatter radar experiment

A 30-day incoherent scatter radar (ISR) experiment was conducted at Millstone Hill (288.5 E, 42.6 N) from 4 October to 4 November 2002. The altitude profiles of electron density N e

Liu, L; Wan, W; Zhang, M-L; Ning, B; Zhang, S-R; Holt, JM;

Published by:       Published on:

YEAR: 2007     DOI: 10.5194/angeo-25-2019-2007

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:

Comparison of the first long-duration IS experiment measurements over Millstone Hill and EISCAT Svalbard radar with IRI2001

The first long-duration incoherent scatter (IS) radar observations over Millstone Hill (42.6°N, 288.5°E) and EISCAT Svalbard radar (ESR, 78.15°N, 16.05°E) from October 4 to November 4, 2002 are compared with the newly updated version of the IRI model (IRI2001). The present study showed that: (1) For the peak parameters hmF2 and foF2, the IRI results are in good agreement with the observations over Millstone Hill, but there are large discrepancies over ESR. For the B parameters, the table option of IRI produces closer val ...

Lei, Jiuhou; Liu, Libo; Wan, Weixing; Zhang, Shun-Rong; Van Eyken, A.P.;

Published by: Advances in Space Research      Published on:

YEAR: 2006     DOI: https://doi.org/10.1016/j.asr.2005.01.061

Ionosphere; incoherent scatter radar; Modelling and forecasting; International reference ionosphere

Global patterns of Joule heating in the high-latitude ionosphere

A compiled empirical global Joule heating (CEJH) model is described in this study. This model can be used to study Joule heating patterns, Joule heating power, potential drop, and polar potential size in the high-latitude ionosphere and thermosphere, and their variations with solar wind conditions, geomagnetic activities, the solar EUV radiation, and the neutral wind. It is shown that the interplanetary magnetic field (IMF) orientation and its magnitude, the solar wind speed, AL index, geomagnetic K _...

Zhang, X.; Wang, C.; Chen, T.; Wang, Y.; Tan, A.; Wu, T.; Germany, G.; Wang, W.;

Published by: Journal of Geophysical Research      Published on: 12*2005

YEAR: 2005     DOI: 10.1029/2005JA011222

electric fields; magnetosphere/ionosphere interaction; Modeling and forecasting; particle precipitation; polar cap ionosphere; solar radiation and cosmic ray effects

Global patterns of Joule heating in the high-latitude ionosphere

A compiled empirical global Joule heating (CEJH) model is described in this study. This model can be used to study Joule heating patterns, Joule heating power, potential drop, and polar potential size in the high-latitude ionosphere and thermosphere, and their variations with solar wind conditions, geomagnetic activities, the solar EUV radiation, and the neutral wind. It is shown that the interplanetary magnetic field (IMF) orientation and its magnitude, the solar wind speed, AL index, geomagnetic K _...

Zhang, X.; Wang, C.; Chen, T.; Wang, Y.; Tan, A.; Wu, T.; Germany, G.; Wang, W.;

Published by: Journal of Geophysical Research      Published on: 12*2005

YEAR: 2005     DOI: 10.1029/2005JA011222

electric fields; magnetosphere/ionosphere interaction; Modeling and forecasting; particle precipitation; polar cap ionosphere; solar radiation and cosmic ray effects

Global patterns of Joule heating in the high-latitude ionosphere

A compiled empirical global Joule heating (CEJH) model is described in this study. This model can be used to study Joule heating patterns, Joule heating power, potential drop, and polar potential size in the high-latitude ionosphere and thermosphere, and their variations with solar wind conditions, geomagnetic activities, the solar EUV radiation, and the neutral wind. It is shown that the interplanetary magnetic field (IMF) orientation and its magnitude, the solar wind speed, AL index, geomagnetic K _...

Zhang, X.; Wang, C.; Chen, T.; Wang, Y.; Tan, A.; Wu, T.; Germany, G.; Wang, W.;

Published by: Journal of Geophysical Research      Published on: 12*2005

YEAR: 2005     DOI: 10.1029/2005JA011222

electric fields; magnetosphere/ionosphere interaction; Modeling and forecasting; particle precipitation; polar cap ionosphere; solar radiation and cosmic ray effects

Development of the global assimilative ionospheric model

Wang, Chunming; Hajj, George; Pi, Xiaoqing; Rosen, Gary; Wilson, Brian;

Published by: Radio Science      Published on:

YEAR: 2004     DOI:

Assimilation of Space-Based Ultraviolet Data Into a Recursive Global Ionospheric Model

Kamalabadi, F; Hajj, G; Pi, X; Wang, C; Wilson, B;

Published by:       Published on:

YEAR: 2003     DOI:

Results from CHAMP, SAC/C and IOXGPS ionospheric occultations obtained by the Abel Inversion and data assimilation

No Slide Title Page 1 Results from CHAMP, SAC/C and IOX GPS Ionospheric Occultations Obtained by the Abel Inversion and Data Assimilation Lukas Mandrake, JPL George Hajj, JPL

Mandrake, Lukas; Hajj, George; Iijima, Byron; Pi, Xiaoqing; Rosen, Gary; Straus, Paul; Wang, Chunming; Wilson, Brian;

Published by:       Published on:

YEAR: 2003     DOI:

Multi-resolution atmospheric modeling

Baer, F; Tribbia, J; Fournier, A; Wang, H;

Published by:       Published on:

YEAR: 2003     DOI: