GUVI Biblio





Notice:

  • Clicking on the title will open a new window with all details of the bibliographic entry.
  • Clicking on the DOI link will open a new window with the original bibliographic entry from the publisher.
  • Clicking on a single author will show all publications by the selected author.
  • Clicking on a single keyword, will show all publications by the selected keyword.



Found 2061 entries in the Bibliography.


Showing entries from 151 through 200


2021

Conjugate Photoelectron Energy Spectra Derived From Coincident FUV and Radio Measurements

We present a method for estimating incident photoelectrons energy spectra as a function of altitude by combining global scale far-ultraviolet (FUV) and radio-occultation (RO) measurements. This characterization provides timely insights important for accurate interpretation of ionospheric parameters inferred from the recently launched Ionospheric Connection Explorer (ICON) observations. Quantification of photoelectron impact is enabled by the fact that conjugate photoelectrons (CPEs) directly affect FUV airglow emissions but ...

Urco, J.; Kamalabadi, F.; Kamaci, U.; Harding, B.; Frey, H.; Mende, S.; Huba, J.; England, S.; Immel, T.;

Published by: Geophysical Research Letters      Published on:

YEAR: 2021     DOI: 10.1029/2021GL095839

airglow; conjugate photolectrons; COSMIC2; energy spectra; ICON

Storm Time Effects on Latitudinal Distribution of Ionospheric TEC in the American and Asian-Australian Sectors: August 25–26, 2018 Geomagnetic Storm

On the dayside of August 25–26, 2018 (main phase, MP of the storm), we unveiled the storm time effects on the latitudinal distribution of ionospheric total electron content (TEC). We used 17 and 19 Global Positioning System receivers in American and Asian-Australian sectors, respectively. Also, we employed a pair of magnetometers in each sector to unveil storm time effects on vertical E × B upward directed inferred drift velocity in the F region ionosphere. Also used is NASA Thermosphere Ionosphere Mesosphere Energetics a ...

Bolaji, O.; Fashae, J.; Adebiyi, S.; Owolabi, Charles; Adebesin, B.; Kaka, R.; Ibanga, Jewel; Abass, M.; Akinola, O.; Adekoya, B.; Younas, W.;

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

YEAR: 2021     DOI: 10.1029/2020JA029068

double-humped increase (DHI); equatorial ionization anomaly (EIA); prompt penetrating electric field (PPEF); storm time equatorward wind

FTA: A Feature Tracking Empirical Model of Auroral Precipitation

The Feature Tracking of Aurora (FTA) model was constructed using 1.5 years of Polar Ultraviolet Imager data and is based on tracking a cumulative energy grid in 96 magnetic local time (MLT) sectors. The equatorward boundary, poleward boundary, and 19 cumulative energy bins are tracked with the energy flux and the latitudinal position. With AE increasing, the equatorward boundary moves to lower latitudes everywhere, while the poleward boundary moves poleward in the 2300–0300 MLT region and equatorward in other MLT sectors. ...

Wu, Chen; Ridley, Aaron; DeJong, Anna; Paxton, Larry;

Published by: Space Weather      Published on:

YEAR: 2021     DOI: 10.1029/2020SW002629

Auroral Precipitation Model; cumulative energy bins; data-model comparisons; M-I coupling; statistical analyses

Exploring the Upper Atmosphere

In this chapter, we describe how we can understand the state of the upper atmosphere (the ionosphere, thermosphere, and aurora) using optical observations and how one produces a global view of the Earth s upper atmosphere from optical remote sensing, especially using far ultraviolet (FUV) wavelengths, to advance our understanding of the near Earth space environment. We examine the choice of optical signatures, the basic science behind the signatures, and the techniques for observations. Examples of the technique as applied t ...

Paxton, Larry; Zhang, Yongliang; Kil, Hyosub; Schaefer, Robert;

Published by:       Published on:

YEAR: 2021     DOI: 10.1002/9781119815631.ch23

Earth space environment; far ultraviolet wavelengths; high-latitude regions; optical remote sensing; solar wind; upper atmosphere

Deducing Non-Migrating Diurnal Tides in the Middle Thermosphere With GOLD Observations of the Earth s far Ultraviolet Dayglow From Geostationary Orbit

The global-scale observations of the limb and disk (GOLD) Mission images middle thermosphere temperature and the vertical column density ratio of oxygen to molecular nitrogen (O/N2) using its far ultraviolet imaging spectrographs in geostationary orbit. Since GOLD only measures these quantities during daylight, and only over the ∼140° of longitude visible from geostationary orbit, previously developed tidal analysis techniques cannot be applied to the GOLD data set. This paper presents a novel approach that deduces two sp ...

Krier, Christopher; England, Scott; Greer, Katelynn; Evans, Scott; Burns, Alan; Eastes, Richard;

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

YEAR: 2021     DOI: 10.1029/2021JA029563

airglow; composition; temperature; thermosphere; tides

Spatio-Temporal Evolution of Global Ionospheric Storm Drivers and Hemispherical Asymmetry During 17–18 March 2015 Geomagnetic Storm

The local, regional, and global morphology of the ionospheric response of the March 2015 geomagnetic storm has been investigated by different studies. However, the spatio-temporal evolution of the drivers of the global ionospheric response to this storm has not yet been investigated, using multi-data sources, in detail. Therefore, in this study drivers of the ionospheric response to the March 17–18, 2015 storm are investigated. Spatial and temporal variations of deposition of solar wind energy are found to be the cause for ...

Terefe, Dejene; Nigussie, Melessew;

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

YEAR: 2021     DOI: 10.1029/2021JA029348

Global distribution of nighttime MSTIDs and its association with E region irregularities seen by CHAMP satellite

Lee, Woo; Kil, Hyosub; Paxton, Larry;

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

YEAR: 2021     DOI:

Exploring the upper atmosphere: Using optical remote sensing

Paxton, Larry; Zhang, Yongliang; Kil, Hyosub; Schaefer, Robert;

Published by: Upper Atmosphere Dynamics and Energetics      Published on:

YEAR: 2021     DOI:

Space Physics and Aeronomy, Upper Atmosphere Dynamics and Energetics

Paxton, Larry;

Published by:       Published on:

YEAR: 2021     DOI:

On the Relationship of the O(1D) 630.0 nm Dayglow Emission to the F10.7 cm Solar Flux and the Solar Zenith Angle

The Wind Imaging Interferometer (WINDII) Empirical Model, which provides the characteristics of the O(1D) 630.0 nm atomic oxygen dayglow emission from the upper atmosphere has been reviewed and updated. It now includes the Integrated Emission Rate, the peak Volume Emission Rate, the Altitude of that peak and the Full Width at Half Maximum as functions of the F10.7 cm Solar Radio Flux and the solar zenith angle (SZA). The model employs 98,617 WINDII observations obtained between the years 1992 and 1996, and the model and obse ...

Shepherd, Gordon; Cho, Young-Min;

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

YEAR: 2021     DOI: 10.1029/2020JA028715

dayglow; empirical model; O(1D) Emission; solar radio flux; solar zenith angle; upper atmosphere

Field-Aligned Current During an Interval of BY-Dominated Interplanetary-Field; Modeled-to-Observed Comparisons

Carter, Jennifer; Samsonov, AA; Milan, Stephen; Branduardi-Raymont, Graziella; Ridley, Aaron; Paxton, Larry; Anderson, Brian; Waters, Colin; Edwards, Thomas;

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

YEAR: 2021     DOI:

Modeling of Ultraviolet Aurora Intensity Associated With Interplanetary and Geomagnetic Parameters Based on Neural Networks

The spatial distribution of aurora intensity is an important manifestation of solar wind-magnetosphere-ionosphere energy coupling process, and it oscillates with the change of space environment parameters and geomagnetic index. It is of great significance to establish an appropriate aurora intensity model for the prediction of space weather and the study of magnetosphere dynamics. Based on Ultraviolet Imager (UVI) data of Polar satellite, we constructed two auroral models by using two different neural networks, that is, the ...

Hu, Ze-Jun; Han, Bing; Zhang, Yisheng; Lian, Huifang; Wang, Ping; Li, Guojun; Li, Bin; Chen, Xiang-Cai; Liu, Jian-Jun;

Published by: Space Weather      Published on:

YEAR: 2021     DOI: 10.1029/2021SW002751

conditional generation adversarial network; generalized regression neural network; interplanetary and geomagnetic parameters; neural networks; ultraviolet auroral intensity model

Inhibition of F3 Layer at Low Latitude Station Sanya During Recovery Phase of Geomagnetic Storms

A special F2 layer stratification structure named F3 layer occurs frequently in equatorial and low latitude ionosphere during summer daytime. In this study, a new phenomenon of decreasing occurrence of the F3 layer, and narrowing differences of virtual heights between the F3 and F2 layers in the recovery phase of geomagnetic storms is reported. We named this phenomenon as the inhibition of F3 layer event (IFLE). Using the ionosonde observations during summer of 2012–2015 at Sanya (18.3°N, 109.6°E, dip latitude 12.6°N), ...

Jin, Yuyan; Zhao, Biqiang; Li, Guozhu; Li, Zishen; Zhou, Xu;

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

YEAR: 2021     DOI: 10.1029/2021JA029850

F3 layer; Geomagnetic storms; westward disturbance dynamo electric field

Middle-Low Latitude Neutral Composition and Temperature Responses to the 20 and 21 November 2003 Superstorm From GUVI Dayside Limb Measurements

Yu, Tingting; Wang, Wenbin; Ren, Zhipeng; Yue, Jia; Yue, Xinan; He, Maosheng;

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

YEAR: 2021     DOI:

Longitudinal Variation of Postsunset Plasma Depletions From the Global-Scale Observations of the Limb and Disk (GOLD) Mission

Martinis, C; Daniell, R; Eastes, R; Norrell, J; Smith, J; Klenzing, J; Solomon, S; Burns, A;

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

YEAR: 2021     DOI:

Wide-field aurora imager onboard Fengyun satellite: Data products and validation

Ding, GuangXing; Li, JiaWei; Zhang, Xiaoxin; He, Fei; He, LingPing; Song, KeFei; Sun, Liang; Dai, Shuang; Liu, ShiJie; Chen, Bo; , others;

Published by: Earth and Planetary Physics      Published on:

YEAR: 2021     DOI:

Responses of the African equatorial ionization anomaly (EIA) to some selected intense geomagnetic storms during the maximum phase of solar cycle 24

Oyedokun, OJ; Akala, AO; Oyeyemi, EO;

Published by: Advances in Space Research      Published on:

YEAR: 2021     DOI:

Hemispheric Asymmetries in the Mid-latitude Ionosphere During the September 7—8, 2017 Storm: Multi-instrument Observations

Wang, Zihan; Zou, Shasha; Liu, Lei; Ren, Jiaen; Aa, Ercha;

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

YEAR: 2021     DOI:

The Impact of Assimilating Ionosphere and Thermosphere Observations on Neutral Temperature Improvement: Observing System Simulation Experiments Using EnKF

He, Jianhui; Yue, Xinan; Ren, Zhipeng;

Published by: Space Weather      Published on:

YEAR: 2021     DOI:

The thermospheric column O/N2 ratio

Meier, RR;

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

YEAR: 2021     DOI:

Near Real-Time Global Plasma Irregularity Monitoring by FORMOSAT-7/COSMIC-2

Chen, Shih-Ping; Lin, Charles; Rajesh, Panthalingal; Liu, Jann-Yenq; Eastes, Richard; Chou, Min-Yang; Choi, Jong-Min;

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

YEAR: 2021     DOI:

The response of middle thermosphere (~ 160 km) composition to the November 20 and 21, 2003 superstorm

Yu, Tingting; Wang, Wenbin; Ren, Zhipeng; Cai, Xuguang; Yue, Xinan; He, Maosheng;

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

YEAR: 2021     DOI:

Observational Evidence and Formation Mechanism of Low-Density Cells in the Upper Thermosphere on September 8, 2017

Yuan, Liangliang; Jin, Shuanggen;

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

YEAR: 2021     DOI:

Far Ultraviolet Hyperspectral Imager: NASA s TIMED/GUVI and DMSP SSUSI

Paxton, Larry; Zhang, Yongliang; Schaefer, Robert; Kil, Hyosub; Wolven, Brian; Romeo, Giuseppe; Yonker, Justin;

Published by:       Published on:

YEAR: 2021     DOI:

Non-storm time thermospheric O/N 2 depletion and NO enhancement

Zhang, Yongliang; Paxton, Larry; Wang, Wenbin; Huang, Chaosong;

Published by:       Published on:

YEAR: 2021     DOI:

Comparison of ionospheric anomalies over African equatorial/low-latitude region with IRI-2016 model predictions during the maximum phase of solar cycle 24

Amaechi, Paul; Oyeyemi, Elijah; Akala, Andrew; Kaab, Mohamed; Younas, Waqar; Benkhaldoun, Zouhair; Khan, Majid; Mazaudier, Christine-Amory;

Published by: Advances in Space Research      Published on:

YEAR: 2021     DOI:

Investigating Geocoronal Absorption for Wavelength Calibration of Sounding Rockets

Donders, Nicolas; Winebarger, Amy; Kankelborg, Charles; Vigil, Genevieve; Paxton, Larry; Zank, Gary;

Published by:       Published on:

YEAR: 2021     DOI:

Photoelectron transport and associated Far Ultraviolet emissions: Model simulation and comparison with observations

Liang, Jun; Sydorenko, Dmytro; Donovan, Eric; Rankin, Robert;

Published by:       Published on:

YEAR: 2021     DOI:

Progresses and Challenges to specifying the IT system during weak storms

Deng, Yue; Heelis, Roderick; Paxton, Larry; Lyons, Larry; Nishimura, Toshi; Zhang, Shunrong; Bristow, Bill; Maute, Astrid; Sheng, Cheng; Zhu, Qingyu; , others;

Published by:       Published on:

YEAR: 2021     DOI:

Space Physics and Aeronomy: Space Physics and Aeronomy, Solar Physics and Solar Wind

Raouafi, Nour; Vourlidas, Angelos; Zhang, Yongliang; Paxton, Larry;

Published by:       Published on:

YEAR: 2021     DOI:

Signatures of conjugate photoelectrons in the ionosphere and thermosphere

Kil, Hyosub; Paxton, Larry; Schaefer, Robert; Huba, Joseph;

Published by:       Published on:

YEAR: 2021     DOI:

Understanding the role of exospheric density in the ring current recovery rate

Cucho-Padin, Gonzalo; Ferradas, Cristian; Waldrop, Lara; Fok, Mei-Ching;

Published by: Earth and Space Science Open Archive ESSOAr      Published on:

YEAR: 2021     DOI:

Thermospheric ionization from auroral particle precipitation observed by the SSUSI satellite instruments

Solar, auroral, and radiation belt electrons enter the atmosphere at polar regions leading to ionization and affecting its chemistry. Climate models usually parametrize this ionization and the related changes in chemistry based on satellite particle measurements. Precise measurements of the particle and energy influx into the upper atmosphere are difficult because they vary substantially in location and time. Widely used particle data are derived from the POES and GOES satellite measurements which provide electron and proton ...

Bender, Stefan; Espy, Patrick; Paxton, Larry;

Published by: Earth and Space Science Open Archive ESSOAr      Published on:

YEAR: 2021     DOI: 10.1002/essoar.10506056.1

Understanding the Impacts of Mesosphere and Lower Thermosphere on Thermospheric Dynamics and Composition

Malhotra, Garima;

Published by:       Published on:

YEAR: 2021     DOI:

Validation of SSUSI-derived auroral electron densities: comparisons to EISCAT data

Bender, Stefan; Espy, Patrick; Paxton, Larry;

Published by:       Published on:

YEAR: 2021     DOI:

Large-Scale Dune Aurora Event Investigation Combining Citizen Scientists Photographs and Spacecraft Observations

Recently, citizen scientist photographs led to the discovery of a new auroral form called “the dune aurora” which exhibits parallel stripes of brighter emission in the green diffuse aurora at about 100 km altitude. This discovery raised several questions, such as (i) whether the dunes are associated with particle precipitation, (ii) whether their structure arises from spatial inhomogeneities in the precipitating fluxes or in the underlying neutral atmosphere, and (iii) whether they are the auroral manifestation of an atm ...

Grandin, Maxime; Palmroth, Minna; Whipps, Graeme; Kalliokoski, Milla; Ferrier, Mark; Paxton, Larry; Mlynczak, Martin; Hilska, Jukka; Holmseth, Knut; Vinorum, Kjetil; , others;

Published by: AGU Advances      Published on:

YEAR: 2021     DOI: https://doi.org/10.1029/2020AV000338

FTA: A Feature Tracking Empirical Model of Auroral Precipitation

The Feature Tracking of Aurora (FTA) model was constructed using 1.5 years of Polar Ultraviolet Imager data and is based on tracking a cumulative energy grid in 96 magnetic local time (MLT) sectors. The equatorward boundary, poleward boundary, and 19 cumulative energy bins are tracked with the energy flux and the latitudinal position. With AE increasing, the equatorward boundary moves to lower latitudes everywhere, while the poleward boundary moves poleward in the 2300–0300 MLT region and equatorward in other MLT sectors. ...

Wu, Chen; Ridley, Aaron; DeJong, Anna; Paxton, Larry;

Published by: Space Weather      Published on:

YEAR: 2021     DOI: https://doi.org/10.1029/2020SW002629

Space Physics and Aeronomy, Ionosphere Dynamics and Applications

Zhang, Yongliang; Paxton, Larry;

Published by:       Published on:

YEAR: 2021     DOI:

Storm-Time Neutral Composition Changes in the Upper Atmosphere

Zhang, Yongliang; Paxton, Larry;

Published by: Upper Atmosphere Dynamics and Energetics      Published on:

YEAR: 2021     DOI:

Exploring the Upper Atmosphere: Using Optical Remote Sensing

Paxton, Larry; Zhang, Yongliang; Kil, Hyosub; Schaefer, Robert;

Published by: Upper Atmosphere Dynamics and Energetics      Published on:

YEAR: 2021     DOI:

Inversion of Ionospheric O/N-2 by Using FY-3D Ionospheric Photometer Data

Da-xin, Wang; Li-ping, Fu; Fang, Jiang; Nan, Jia; Tian-fang, Wang; Shuang-tuan, Dou;

Published by: SPECTROSCOPY AND SPECTRAL ANALYSIS      Published on:

YEAR: 2021     DOI:

Space Physics and Aeronomy, Upper Atmosphere Dynamics and Energetics

Zhang, Yongliang; Paxton, Larry;

Published by:       Published on:

YEAR: 2021     DOI:

Lower thermospheric material transport via Lagrangian coherent structures

Datta-Barua, Seebany; Pedatella, Nicholas; Greer, Katelynn; Wang, Ningchao; Nutter, Leanne; Harvey, Lynn;

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

YEAR: 2021     DOI:

Space Physics and Aeronomy, Magnetospheres in the Solar System

Zhang, Yongliang; Paxton, Larry;

Published by:       Published on:

YEAR: 2021     DOI:

Space Physics and Aeronomy, Solar Physics and Solar Wind

Zhang, Yongliang; Paxton, Larry;

Published by:       Published on:

YEAR: 2021     DOI:

Field-aligned current during an interval of $$\backslash$rm B\_ $\$Y$\$ $-dominated interplanetary-field; modeled-to-observed comparisons

Carter, Jennifer; Samsonov, Andrey; Milan, Stephen; Branduardi-Raymont, Graziella; Ridley, Aaron; Paxton, Larry; Anderson, Brian; Waters, Colin; Edwards, Thomas;

Published by: Earth and Space Science Open Archive ESSOAr      Published on:

YEAR: 2021     DOI:

Impact of September 2019 Antarctic Sudden Stratospheric Warming on Mid-Latitude Ionosphere and Thermosphere Over North America and Europe

Goncharenko, Larisa; Harvey, Lynn; Greer, Katelynn; Zhang, Shun-Rong; Coster, Anthea; Paxton, Larry;

Published by: Geophysical Research Letters      Published on:

YEAR: 2021     DOI:

Spatial structures in solar wind superthermal electrons and polar rain aurora

Herschbach, Dennis; Zhang, Yongliang;

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

YEAR: 2021     DOI:

Periodic variations in solar wind and responses of the magnetosphere and thermosphere in March 2017

Zhang, Yongliang; Paxton, Larry; Wang, Wenbin; Huang, Chaosong;

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

YEAR: 2021     DOI:

APL JANUS System Progress on Commercial Suborbital Launch Vehicles: Moving the Laboratory Environment to Near Space

Smith, Todd; Hacala, Ryan; Hohlfeld, Erik; Edens, Weston; Hibbitts, Charles; Paxton, Larry; Arnold, Steven; Westlake, Joseph; Rymer, Abigail; Chacos, Al; , others;

Published by: Gravitational and Space Research      Published on:

YEAR: 2021     DOI:



  2      3      4      5      6      7