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Found 485 entries in the Bibliography.

Showing entries from 1 through 50

2022

The Terrestrial Magnetospheric Response to the 28th October 2021 CME

Waters, James; Jackman, Caitriona; Whiter, Daniel; Fogg, Alexandra; Lamy, Laurent; Carter, Jennifer; Fryer, Laura; Louis, Corentin; Carley, Eion; Briand, Carine; , others;

Published by: Published on:

YEAR: 2022 DOI:

2021

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:

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:

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:

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:

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

Malhotra, Garima;

Published by: Published on:

YEAR: 2021 DOI:

Quantifying the Impact of Dynamic Storm-Time Exospheric Density on Plasmaspheric Refilling

Waldrop, Lara; Cucho-Padin, Gonzalo; Maruyama, Naomi;

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

YEAR: 2021 DOI:

2020

Aurora in the Polar Cap: A Review

This paper reviews our current understanding of auroral features that appear poleward of the main auroral oval within the polar cap, especially those that are known as Sun-aligned arcs, transpolar arcs, or theta auroras. They tend to appear predominantly during periods of quiet geomagnetic activity or northwards directed interplanetary magnetic field (IMF). We also introduce polar rain aurora which has been considered as a phenomenon on open field lines. We describe the morphology of such auroras, their ...

Hosokawa, Keisuke; Kullen, Anita; Milan, Steve; Reidy, Jade; Zou, Ying; Frey, Harald; Maggiolo, Romain; Fear, Robert;

Published by: Space Science Reviews Published on: 02/2020

YEAR: 2020 DOI: 10.1007/s11214-020-0637-3

Diffuse and Pulsating Aurora

This chapter reviews fundamental properties and recent advances of diffuse and pulsating aurora. Diffuse and pulsating aurora often occurs on closed field lines and involves energetic electron precipitation by wave-particle interaction. After summarizing the definition, large-scale morphology, types of pulsation, and driving processes, we review observation techniques, occurrence, duration, altitude, evolution, small-scale structures, fast modulation, relation to high-energy precipitation, the role of E ...

Nishimura, Yukitoshi; Lessard, Marc; Katoh, Yuto; Miyoshi, Yoshizumi; Grono, Eric; Partamies, Noora; Sivadas, Nithin; Hosokawa, Keisuke; Fukizawa, Mizuki; Samara, Marilia; Michell, Robert; Kataoka, Ryuho; Sakanoi, Takeshi; Whiter, Daniel; Oyama, Shin-ichiro; Ogawa, Yasunobu; Kurita, Satoshi;

Published by: Space Science Reviews Published on: 01/2020

YEAR: 2020 DOI: 10.1007/s11214-019-0629-3

Diffuse and Pulsating Aurora

Published by: Space Science Reviews Published on: 01/2020

YEAR: 2020 DOI: 10.1007/s11214-019-0629-3

Impacts of Binning Methods on High-Latitude Electrodynamic Forcing: Static Versus Boundary-Oriented Binning Methods

An outstanding issue in the general circulation model simulations for Earth\textquoterights upper atmosphere is the inaccurate estimation of Joule heating, which could be associated with the inaccuracy of empirical models for high-latitude electrodynamic forcing. The binning methods used to develop those empirical models may contribute to the inaccuracy. Traditionally, data are binned through a static binning approach by using fixed geomagnetic coordinates, in which the dynamic nature of the forcing is ...

Zhu, Qingyu; Deng, Yue; Richmond, Arthur; Maute, Astrid; Chen, Yun-Ju; Hairston, Marc; Kilcommons, Liam; Knipp, Delores; Redmon, Robert; Mitchell, Elizabeth;

Published by: Journal of Geophysical Research: Space Physics Published on: 01/2020

YEAR: 2020 DOI: 10.1029/2019JA027270

Electric field; high latitude; Joule heating; particle precipitation

Effects on the equatorial and low latitude thermosphere and ionosphere during the 19—22 December 2015 geomagnetic storm period

Mansilla, Gustavo; Zossi, MM;

Published by: Advances in Space Research Published on:

YEAR: 2020 DOI:

Impacts of Lower Thermospheric Atomic Oxygen on Thermospheric Dynamics and Composition Using the Global Ionosphere Thermosphere Model

Malhotra, Garima; Ridley, Aaron; Marsh, Daniel; Wu, Chen; Paxton, Larry; Mlynczak, Martin;

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

YEAR: 2020 DOI:

Impacts of Lower Thermospheric Atomic Oxygen on Thermospheric Dynamics and Composition Using the Global Ionosphere Thermosphere Model

Malhotra, Garima; Ridley, Aaron; Marsh, Daniel; Wu, Chen; Paxton, Larry; Mlynczak, Martin;

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

YEAR: 2020 DOI:

SIHLA, a mission of opportunity to L1 to map H Lyman alpha emissions from the heliopause, the interplanetary medium, the Earth s geocorona and comets

Paxton, Larry; Provornikova, Elena; Roelof, Edmond; emerais, Eric; Izmodenov, Vladislav; Katushkina, Olga; Mierkiewicz, Edwin; Baliukin, Igor; Gruntman, Mike; Taguchi, Makoto; , others;

Published by: Published on:

YEAR: 2020 DOI:

Influence of geomagnetic storms on the mid latitude D and F2 regions

Naidu, Pyla; Madhavilatha, Tirumalaraju; Devi, Malladi;

Published by: Annals of Geophysics Published on:

YEAR: 2020 DOI:

Study the Ionospheric Total Electron Content (TEC) variation during Geomagnetic Storm in 24th Solar Cycle

Kundu, Subrata; Sasmal, Sudipta; Chakraborti, Suman; Chakrabarti, Sandip;

Published by: Published on:

YEAR: 2020 DOI:

Sources of Thermospheric Variability During Solar Minimum

Cantrall, Clayton; Matsuo, Tomoko;

Published by: Published on:

YEAR: 2020 DOI:

The Dynamical IonosphereStorms and substorms\textemdashThe new whole system approach and future challenges

This chapter covers our current understanding and recent advances in the study of Earth\textquoterights ionosphere during magnetic storms and substorms with a special focus on electrodynamics and its consequences in the past 14 years. In particular, the focus is on the new awareness of looking at the magnetosphere, ionosphere, and thermosphere (M-I-T) as a whole system that has brought us to the next level of understanding. Both ground-based observations and the new space-based observations from magneto ...

Maruyama, Naomi;

Published by: Published on:

YEAR: 2020 DOI: 10.1016/B978-0-12-814782-5.00009-1

Ionospheric and magnetic signatures of a space weather event on 25—29 August 2018: CME and HSSWs

Younas, W; Amory-Mazaudier, Christine; Khan, Majid; Fleury, R;

Published by: Journal of geophysical research: space physics Published on:

YEAR: 2020 DOI:

Statistical relations between auroral electrical conductances and field-aligned currents at high latitudes

Robinson, RM; Kaeppler, Stephen; Zanetti, Larry; Anderson, Brian; Vines, Sarah; Korth, Haje; Fitzmaurice, Anna;

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

YEAR: 2020 DOI:

Longitudinal variation of the ionospheric response to the 26 August 2018 geomagnetic storm at equatorial/low latitudes

Mansilla, Gustavo; Zossi, Marta;

Published by: Pure and Applied Geophysics Published on:

YEAR: 2020 DOI:

Persistence of the long-duration daytime TEC enhancements at different longitudinal sectors during the August 2018 geomagnetic storm

Li, Qiaoling; Huang, Fuqing; Zhong, Jiahao; Zhang, Ruilong; Kuai, Jiawei; Lei, Jiuhou; Liu, Libo; Ren, Dexin; Ma, Han; Yoshikawa, Akimasa; , others;

Published by: Journal of geophysical research: space physics Published on:

YEAR: 2020 DOI:

Thermospheric composition O/N response to an altered meridional mean circulation during sudden stratospheric warmings observed by GOLD

Oberheide, J; Pedatella, NM; Gan, Q; Kumari, K; Burns, AG; Eastes, RW;

Published by: Geophysical Research Letters Published on:

YEAR: 2020 DOI:

First zonal drift velocity measurement of Equatorial Plasma Bubbles (EPBs) from a geostationary orbit using GOLD data

Karan, Deepak; Daniell, Robert; England, Scott; Martinis, Carlos; Eastes, Richard; Burns, Alan; McClintock, William;

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

YEAR: 2020 DOI:

Drivers and Prediction of Variability in Earth’s Ionosphere and Thermosphere: New Observations from Missions I

Immel, Thomas; Greer, Katelynn; Lieberman, Ruth; Paxton, Larry;

Published by: Published on:

YEAR: 2020 DOI:

Impacts of lower thermospheric atomic oxygen on thermospheric dynamics and composition using the global ionosphere thermosphere model

Malhotra, Garima; Ridley, Aaron; Marsh, Daniel; Wu, Chen; Paxton, Larry; Mlynczak, Martin;

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

YEAR: 2020 DOI:

Impacts of lower thermospheric atomic oxygen on thermospheric dynamics and composition using the global ionosphere thermosphere model

Malhotra, Garima; Ridley, Aaron; Marsh, Daniel; Wu, Chen; Paxton, Larry; Mlynczak, Martin;

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

YEAR: 2020 DOI:

Drivers and Prediction of Variability in Earth’s Ionosphere and Thermosphere: New Observations from Missions II Posters

Immel, Thomas; Greer, Katelynn; Lieberman, Ruth; Paxton, Larry;

Published by: Published on:

YEAR: 2020 DOI:

SIHLA, a Mission of Opportunity to L1 to Map H Lyman Alpha Emissions from the Heliopause, the Interplanetary Medium, the Earth s Geocorona and Comets

Paxton, Larry; Provornikova, Elena; Roelof, Edmond; emerais, Eric; Izmodenov, Vladislav; Katushkina, Olga; Mierkiewicz, Edwin; Baliukin, Igor; Gruntman, Mike; Taguchi, Makoto; , others;

Published by: Published on:

YEAR: 2020 DOI:

2019

Morphological study on the ionospheric variability at Bharati, a polar cusp station in the southern hemisphere

Morphological features of the quiet/disturbed time variations in the Total Electron Content (TEC) at the polar cusp station Bharati (76.69\textdegreeS MLAT) during a period of 5 years starting from February 2013 to December 2017 has been studied using GPS TEC measurements. The TEC at Bharati follows a diurnal pattern with its peak appearing close to local noon/magnetic noon during the summer/winter months. A nighttime enhancement in the TEC is seen around the magnetic midnight during winter. The plasma density at Bharati ...

Shreedevi, P.R.; Choudhary, R.K.; Yu, Yiqun; Thomas, Evan;

Published by: Journal of Atmospheric and Solar-Terrestrial Physics Published on: 10/2019

YEAR: 2019 DOI: 10.1016/j.jastp.2019.105058

Understanding the global dynamics of the equatorial ionosphere in Africa for space weather capabilities: A science case for AfrequaMARN

Lawal, Hammed; Lester, Mark; Cowley, Stanley; Milan, S.E.; Yeoman, T.K.; Provan, Gabby; Imber, Suzie; Rabiu, A.Babatunde;

Published by: Journal of Atmospheric and Solar-Terrestrial Physics Published on: 10/2019

YEAR: 2019 DOI: 10.1016/j.jastp.2018.01.008

Upper Atmosphere Radiance Data Assimilation: A Feasibility Study for GOLD Far Ultraviolet Observations

Far ultraviolet observations of Earth\textquoterights dayglow from the National Aeronautics and Space Administration (NASA) Global-scale Observations of the Limb and Disk (GOLD) mission presents an unparalleled opportunity for upper atmosphere radiance data assimilation. Assimilation of the Lyman-Birge-Hopfield (LBH) band emissions can be formulated in a similar fashion to lower atmosphere radiance data assimilation approaches. To provide a proof-of-concept for such an approach, this paper presents assimilation experiment ...

Cantrall, Clayton; Matsuo, Tomoko; Solomon, Stanley;

Published by: Journal of Geophysical Research: Space Physics Published on: 10/2019

YEAR: 2019 DOI: 10.1029/2019JA026910

Effects on the equatorial and low latitude thermosphere and ionosphere during the 19\textendash22 December 2015 geomagnetic storm period

In this paper, the critical frequency of F2 layer (foF2) and their peak height (hmF2) recorded at equatorial and low latitude stations of the South American sector were analyzed during the 19\textendash22 December 2015 geomagnetic storm period. We have observed initially decreases of foF2 at equatorial and low latitudes over the North crest of the equatorial ionization anomaly (EIA) and almost no effect over the South crest. These initial negative storm effects can be fully explained by the penetration of a westward elect ...

Mansilla, G.A.; Zossi, M.M.;

Published by: Advances in Space Research Published on: 09/2019

YEAR: 2019 DOI: 10.1016/j.asr.2019.09.025

Global-Scale Observations of the Equatorial Ionization Anomaly

The National Aeronautics and Space Administration Global-scale Observations of the Limb and Disk ultraviolet spectrograph has been imaging the equatorial ionization anomaly (EIA), regions of the ionosphere with enhanced electron density north and south of the magnetic equator, since October 2018. The initial 3 months of observations was during solar minimum conditions, and they included observations in December solstice of unanticipated variability and depleted regions. Depletions are seen on most nights, in contrast to e ...

Eastes, R.; Solomon, S.; Daniell, R.; Anderson, D.; Burns, A.; England, S.; Martinis, C.; McClintock, W.;

Published by: Geophysical Research Letters Published on: 08/2019

YEAR: 2019 DOI: 10.1029/2019GL084199

An Opposite Response of the Low-Latitude Ionosphere at Asian and American Sectors During Storm Recovery Phases: Drivers From Below or Above

n this study, we focus on the recovery phase of a geomagnetic storm that happened on 6\textendash11 September 2017. The ground-based total electron content data, as well as the F region in situ electron density, measured by the Swarm satellites show an interesting feature, revealing at low and equatorial latitudes on the dayside ionosphere prominent positive and negative responses at the Asian and American longitudinal sectors, respectively. The global distribution of thermospheric O/N₂ ratio measured ...

Xiong, Chao; Lühr, Hermann; Yamazaki, Yosuke;

Published by: Journal of Geophysical Research: Space Physics Published on: 07/2019

YEAR: 2019 DOI: 10.1029/2019JA026917

Ionospheric disturbances at low and mid-low latitudes of the South American sector during the March 2015 great storm

Mansilla, Gustavo;

Published by: Advances in Space Research Published on: 06/2019

YEAR: 2019 DOI: 10.1016/j.asr.2019.02.009

Evaluation of Space Traffic Effects in SBUV Polar Mesospheric Cloud Data

Water-rich rocket exhaust plumes, in particular those emitted by the National Aeronautics and Space Administration Space Shuttle, have been suggested to make a significant contribution to long-term trends in polar mesospheric cloud (PMC) ice water content. We investigate this claim using the combined Solar Backscatter Ultraviolet (SBUV) PMC data record from eight separate instruments, which includes 60 Shuttle launches during PMC seasons between 1985 and 2011. No statistically significant postlaunch signal in PMC total ic ...

DeLand, Matthew; Thomas, Gary;

Published by: Journal of Geophysical Research: Atmospheres Published on: 03/2019

YEAR: 2019 DOI: 10.1029/2018JD029756

L-band scintillation and TEC variations on St. Patrick\textquoterights Day storm of 17 March 2015 over Indian longitudes using GPS and GLONASS observations

The aim of the present study is to investigate the response of ionospheric total electron content (TEC), Global Positioning System (GPS) and Global Navigation Satellite System (GLONASS) scintillations during 17 March 2015 St. Patrick\textquoterights Day geomagnetic storm over Visakhapatnam, which is popularly known as Waltair (WALT) in the literature. GPS TEC observations obtained from five IGS stations (SGOC, IISC, HYDE, LCK4 and LHAZ) and WALT during the storm have been compared. The TEC derived from GPS, GLONASS conste ...

Srinivasu, K; Prasad, D; Niranjan, K; Seemala, Gopi; Venkatesh, K;

Published by: Journal of Earth System Science Published on: 03/2019

YEAR: 2019 DOI: 10.1007/s12040-019-1097-6

Space Weather Modeling Capabilities Assessment: Auroral Precipitation and High-Latitude Ionospheric Electrodynamics

As part of its International Capabilities Assessment effort, the Community Coordinated Modeling Center initiated several working teams, one of which is focused on the validation of models and methods for determining auroral electrodynamic parameters, including particle precipitation, conductivities, electric fields, neutral density and winds, currents, Joule heating, auroral boundaries, and ion outflow. Auroral electrodynamic properties are needed as input to space weather models, to test and validate the accuracy of phys ...

Robinson, Robert; Zhang, Yongliang; Garcia-Sage, Katherine; Fang, Xiaohua; Verkhoglyadova, Olga; Ngwira, Chigomezyo; Bingham, Suzy; Kosar, Burcu; Zheng, Yihua; Kaeppler, Stephen; Liemohn, Michael; Weygand, James; Crowley, Geoffrey; Merkin, Viacheslav; McGranaghan, Ryan; Mannucci, Anthony;