GUVI

Global UltraViolet Imager

GUVI Biblio





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Found 32 entries in the Bibliography.


Showing entries from 1 through 32


2021

First Look at a Geomagnetic Storm With Santa Maria Digisonde Data: F Region Responses and Comparisons Over the American Sector

Santa Maria Digisonde data are used for the first time to investigate the F region behavior during a geomagnetic storm. The August 25, 2018 storm is considered complex due to the incidence of two Interplanetary Coronal Mass Ejections and a High-Speed Solar Wind Stream (HSS). The F 2 layer critical frequency (f o F 2) and its peak height (h m F 2) collected over Santa Maria, near the center of the South American Magnetic Anomaly (SAMA), are compared with data collected from Digisondes installed in the Northern (NH) and Southe ...

Moro, J.; Xu, J.; Denardini, C.; Resende, L.; Neto, P.; Da Silva, L.; Silva, R.; Chen, S.; Picanço, G.; Carmo, C.; Liu, Z.; Yan, C.; Wang, C.; Schuch, N.;

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

YEAR: 2021     DOI: 10.1029/2020JA028663

Digisonde; Equatorial ionization anomaly; F-region; Ionospheric storm; SAMA; space weather

2018

Reconstruction the Ionospheric Responses to the October-November 2003 Halloween Super Storm: A Data Assimilation Approach

Chang, Yu-Shan; Chen, Chia-Hung; Lin, Charles; Chu, Hung-Hsuan; Matsuo, Tomoko;

Published by:       Published on:

YEAR: 2018     DOI:

2017

Model simulations of ion and electron density profiles in ionospheric E and F regions

We develop a time‐dependent theoretical numerical model to simulate the density profiles of the ions (ie, O + ( 2 P), O + ( 2 D), N 2 + , O + ( 4 S), N + , O 2 + , and NO + ) and free

Lin, YC; Chu, YH;

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

YEAR: 2017     DOI: 10.1002/2016JA022855

Analysis and design of the ultraviolet warning optical system based on interference imaging

Ultraviolet warning technology is one of the important methods for missile warning. It provides a very effective way to detect the target for missile approaching alarm. With the development of modern technology, especially the development of information technology at high speed, the ultraviolet early warning system plays an increasingly important role. Compared to infrared warning, the ultraviolet warning has high efficiency and low false alarm rate. In the modern warfare, how to detect the threats earlier, prevent and re ...

Wencong, Wang; Jin, Dong-dong; Chu, Xin-bo; Shi, Yu-feng; Song, Juan; Liu, Jin-sheng; Shao, Si-pei; Hu, Hui-jun; Xiao, Ting;

Published by:       Published on:

YEAR: 2017     DOI: 10.1117/12.2285832

2016

Ionospheric effects of magnetospheric and thermospheric disturbances on March 17--19, 2015

Using vertical and oblique radio-sounding data, we analyze the ionospheric and thermospheric disturbances during the magnetic storm that occurred in northeastern Russia on March 17\textendash19, 2015. We consider the heliospheric sources that induced the magnetic storm. During the main and early recovery phases, the midlatitude stations are characterized by extremely low values of electron density at the F2 layer maximum. Using oblique sounding data, we recorded signals that propagated outside the great circle ar ...

Polekh, N.; Zolotukhina, N.; Romanova, E.; Ponomarchuk, S.; Kurkin, V.; Podlesnyi, A.;

Published by: Geomagnetism and Aeronomy      Published on: 09/2016

YEAR: 2016     DOI: 10.1134/S0016793216040174

Ionospheric F2 layer responses to total solar eclipses at low and mid-latitude

In this article, we presented ionospheric F2 responses to total solar eclipses on the basis of the data obtained from five (5) equatorial/low-latitude and twenty-seven (27) mid-latitude ionosonde stations, which are within the obscuration percentage of 50\textendash100\% of the path of the total solar eclipses progression. Statistically, the diurnal changes in the F2 layer peak height hmF2 and electron density NmF2, as well as the latitudinal and hemispheric dependence and the contribution of both magnetic and solar activ ...

Adekoya, B.J.; Chukwuma, V.U.;

Published by: Journal of Atmospheric and Solar-Terrestrial Physics      Published on: 02/2016

YEAR: 2016     DOI: 10.1016/j.jastp.2016.01.006

Equatorial/low-latitude; Hemisphere; mid-latitude; NmF2 and hmF2; Solar ionizing radiation

Ionospheric effects of magnetospheric and thermospheric disturbances on March 17—19, 2015

Using vertical and oblique radio-sounding data, we analyze the ionospheric and thermospheric disturbances during the magnetic storm that occurred in northeastern Russia on March

Polekh, NM; Zolotukhina, NA; Romanova, EB; Ponomarchuk, SN; Kurkin, VI; Podlesnyi, AV;

Published by: Geomagnetism and Aeronomy      Published on:

YEAR: 2016     DOI:

2014

Meteor radar wind over Chung-Li (24.9 N, 121 E), Taiwan, for the period 10--25 November 2012 which includes Leonid meteor shower: Comparison with empirical model and satellite measurements

The neutral winds in the mesosphere and lower thermosphere (MLT) region are measured by a newly installed meteor trail detection system (or meteor radar) at Chung-Li, Taiwan, for the period 10\textendash25 November 2012, which includes the Leonid meteor shower period. In this study, we use the 3 m field-aligned plasma irregularities in the sporadic E (Es) region in combination with the International Geomagnetic Reference Field model to calibrate the system phase biases such that the true posit ...

Su, C.; Chen, H.; Chu, Y.; Chung, M.; Kuong, R.; Lin, T.; Tzeng, K.; Wang, C; Wu, K.; Yang, K.;

Published by: Radio Science      Published on: 08/2014

YEAR: 2014     DOI: 10.1002/2013RS005273

HWM07; radar meteor wind; tide

Meteor radar wind over Chung-Li (24.9 N, 121 E), Taiwan, for the period 10--25 November 2012 which includes Leonid meteor shower: Comparison with empirical model and satellite measurements

The neutral winds in the mesosphere and lower thermosphere (MLT) region are measured by a newly installed meteor trail detection system (or meteor radar) at Chung-Li, Taiwan, for the period 10\textendash25 November 2012, which includes the Leonid meteor shower period. In this study, we use the 3 m field-aligned plasma irregularities in the sporadic E (Es) region in combination with the International Geomagnetic Reference Field model to calibrate the system phase biases such that the true posit ...

Su, C.; Chen, H.; Chu, Y.; Chung, M.; Kuong, R.; Lin, T.; Tzeng, K.; Wang, C; Wu, K.; Yang, K.;

Published by: Radio Science      Published on: 08/2014

YEAR: 2014     DOI: 10.1002/2013RS005273

HWM07; radar meteor wind; tide

Methodological particularities of creating of remote mapping diagnostical system of ionospheric characteristics from the different orbits of three perspective Russian satellites

Kuzmin, AK; Merzlyi, AM; Shadrin, DG; Yu, Potanin; Banshchikova, MA; Chuvashov, IN;

Published by:       Published on:

YEAR: 2014     DOI:

2013

A comparative study of TEC response for the African equatorial and mid-latitudes during storm conditions

The solar wind effects on the Earth\textquoterights environment are studied for their basic scientific values and crucial practical impacts on technological systems. This paper reports results of Total Electron Content (TEC) changes during two successive ionospheric storms of 7\textendash12 November 2004 using GPS data derived from dual frequency receivers located at African equatorial and midlatitudes. In the geographic coordinate system, equatorial TEC variability is considered over Libreville (0.36\textdegreeN, 9.67\te ...

Habarulema, John; McKinnell, Lee-Anne; a, Dalia; Zhang, Yongliang; Seemala, Gopi; Ngwira, Chigomezyo; Chum, Jaroslav; Opperman, Ben;

Published by: Journal of Atmospheric and Solar-Terrestrial Physics      Published on: 09/2013

YEAR: 2013     DOI: 10.1016/j.jastp.2013.05.008

African equatorial and midlatitude TEC dynamics; Magnetic storms; TIDs

Impact of rocket exhaust plumes on atmospheric composition and climate--an overview

Rockets are the only direct anthropogenic emission sources into the upper atmosphere. Gaseous rocket emissions include CO, N2, H2, H2O, and CO2, while solid rocket motors (SRM) additionally inject significant amounts of aluminum oxide (Al2O3) particles and gaseous chlorine species into the atmosphere. These emissions strongly perturb local atmospheric trace gas and aerosol distributions. Here, previous aircraft measurements in various rocket exhaust plumes ...

Voigt, Ch.; Schumann, U.; Graf, K.; Gottschaldt, K.-D.;

Published by:       Published on:

YEAR: 2013     DOI: 10.1051/eucass/201304657

2012

A modeling study of the longitudinal dependence of storm time midlatitude dayside total electron content enhancements

Sojka, J.; David, M.; Schunk, R.; Heelis, R.;

Published by: Journal of Geophysical Research      Published on: Jan-01-2012

YEAR: 2012     DOI: 10.1029/2011JA017000

Ensemble Modeling with Data Assimilation Models: A New Strategy for Space Weather Science, Specifications and Forecasts

Schunk, Robert; Scherliess, L; Eccles, JV; Gardner, LC; Sojka, JJ; Zhu, L; Pi, X; Mannucci, A; Wilson, BD; Komjathy, A; , others;

Published by:       Published on:

YEAR: 2012     DOI:

Heterogeneous Measurements for Advances in Space Science and Space Weather Forecasting

Examples of heterogenous data might include GPS radio occultation limb data and ultraviolet nadir photometry; GUVI/SSUSI cross-track O/N2 maps coupled with SSULI in-track

Budzien, Scott; Chua, Damien; Coker, Clayton; Dandenault, Patrick; Dymond, Kenneth; Nicholas, Andrew; Stephan, Andrew; Doe, Richard; Crowley, Geoff;

Published by: To emphasize that space weather forecasting with new, full-physics models requires heterogeneous datasets with complementary characteristics—not merely a higher volume of any single data type      Published on:

YEAR: 2012     DOI:

2010

Evolved Tiny Ionospheric Photometer (ETIP): A sensor for ionospheric specification

Budzien, Scott; Chua, Damien; Coker, Clayton; Dandenault, Patrick; Dymond, Kenneth; Nicholas, Andrew; Doe, Richard; Crowley, Geoff;

Published by: To address the requirements for space weather sensors, and includes adequate flexibility for accommodation on a range of future flight opportunities, including microsatellite constellations      Published on:

YEAR: 2010     DOI:

Continued Development and Validation of the USU GAIM Models

Schunk, Robert;

Published by:       Published on:

YEAR: 2010     DOI:

Mid-latitude ionosphere observed by ground-based GPS during intense geomagnetic storms in October 2003 and November 2004

Chung, J; Jee, Geonhwa;

Published by:       Published on:

YEAR: 2010     DOI:

Extreme Enhancements in GPS TEC on 8 and 10 November 2004

Chung, Jong-Kyun; Jee, Gun-Hwa; Kim, Eo-Jin; Kim, Yong-Ha; Cho, Jung-Ho;

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

YEAR: 2010     DOI:

2009

Sun-to-Earth Imaging for Operational Space Weather Monitoring

Chua, DH; Wood, BE; Slinker, SP; Meier, RR; Englert, CR; Socker, DG; Huba, J; Krall, J;

Published by:       Published on:

YEAR: 2009     DOI:

Space Shuttle Impacts on Mesospheric Clouds and Iron Layers as Observed by Lidars and Satellites in the Antarctic and Arctic

Chu, X; Collins, RL; Stevens, MH; Plane, JM; Meier, RR; Deland, MT; Kelley, MC; Nicolls, MJ; Thurairajah, B; Varney, RH; , others;

Published by:       Published on:

YEAR: 2009     DOI:

Observations of the Ionosphere Using the Tiny Ionospheric Photometer.

Coker, Clayton; Dymond, Kenneth; Budzien, Scott; Chua, Damien; Liu, Jann-Yenq; Anderson, David; Basu, Sunanda; Pedersen, Todd;

Published by: Terrestrial, Atmospheric \& Oceanic Sciences      Published on:

YEAR: 2009     DOI:

Ionospheric Electron Density Concurrently Derived by TIP and GOX of FORMOSAT-3/COSMIC.

The tiny ion o spheric pho tom e ter (TIP) and GPS occultation ex per i ment (GOX) onboard FORMOSAT-3/COS MIC (F3/C) are em ployed to mea sure the OI 135.6 nm in ten si ties in

Hsu, Mei-Lan; Rajesh, Panthalingal; Liu, Jann-Yenq; Tsai, Lung-Chih; Tsai, Ho-Fang; Lin, Chien-Hung; Dymond, Kenneth; Coker, Clayton; Chua, Damien; Budzien, Scott; , others;

Published by: Terrestrial, Atmospheric \& Oceanic Sciences      Published on:

YEAR: 2009     DOI: 10.3319/TAO.2008.04.24.02(F3C)

2008

Longitudinal variability of low-latitude total electron content: Tidal influences

Scherliess, L.; Thompson, D.; Schunk, R.;

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

YEAR: 2008     DOI: 10.1029/2007JA012480

TIMED Spacecraft Operations Progression with Automation through Launch to the Second Extended Mission

Chura, Carolyn; Hill, Mark;

Published by:       Published on:

YEAR: 2008     DOI:

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

2007

Incorporation of UV Radiances into the USU GAIM Models

Our primary goal is to incorporate UV radiances from the SSULI and SSUSI instruments, which will be flown on the NPOSSE satellites, into the USU GAIM models. A secondary goal is

Schunk, Robert;

Published by:       Published on:

YEAR: 2007     DOI:

2006

Extreme longitudinal variability of plasma structuring in the equatorial ionosphere on a magnetically quiet equinoctial day

McDonald, Sarah; Basu, Sunanda; Basu, Santimay; Groves, Keith; Valladares, Cesar; Scherliess, Ludger; Thompson, Donald; Schunk, Robert; Sojka, Jan; Zhu, Lie;

Published by: Radio Science      Published on: Jan-12-2006

YEAR: 2006     DOI: 10.1029/2005RS003366

First Observations of the Ionosphere using the Tiny Ionospheric Photometer

Coker, C; Dymond, KF; Budzien, SA; Chua, D; Liu, JY;

Published by:       Published on:

YEAR: 2006     DOI:

Ionospheric Measurements from the Tiny Ionospheric Photometer

Coker, C; Dymond, KF; Budzien, SA; Chua, D;

Published by:       Published on:

YEAR: 2006     DOI:

2005

Antarctic mesospheric clouds formed from space shuttle exhaust

New satellite observations reveal lower thermospheric transport of a space shuttle exhaust plume into the southern hemisphere two days after a January, 2003 launch. A day later, ground-based lidar observations in Antarctica identify iron ablated from the shuttle\textquoterights main engines. Additional satellite observations of polar mesospheric clouds (PMCs) show a burst that constitutes 10\textendash20\% of the PMC mass between 65\textendash79\textdegreeS during the 2002\textendash2003 season, comparable to previous res ...

Stevens, Michael; Meier, R.; Chu, X.; DeLand, M.; Plane, J.;

Published by: Geophysical Research Letters      Published on: 07/2005

YEAR: 2005     DOI: 10.1029/2005GL023054

2004

Multi-instrument Observations of the Development of the Equatorial Ionization Anomaly and Links to Scintillation

McDonald, SE; Basu, S; Groves, K; Scherliess, L; Thompson, DC; Schunk, RW; Sojka, JJ; Zhu, L;

Published by:       Published on:

YEAR: 2004     DOI:



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