GUVI Biblio | guvitimed.jhuapl.edu

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Found 36 entries in the Bibliography.

Showing entries from 1 through 36

2022

Low-latitude plasma blobs above Africa: Exploiting GOLD and multi-satellite in situ measurements

Low-latitude plasma blobs are localized density enhancements of electron density that are occasionally observed in the night-time tropical ionosphere. Two-dimensional (2D) imaging of this phenomenon has been rare and frequently restricted to Central/South America, which is densely covered with ground-based airglow imagers and Global Navigation Satellite System (GNSS) receivers. In Africa, on the contrary, no 2D image of a blob has been reported. Here we present two low-latitude blob events above Africa, one in the Northern s ...

Park, Jaeheung; Min, Kyoung; Eastes, Richard; Chao, Chi; Kim, Hee-Eun; Lee, Junchan; Sohn, Jongdae; Ryu, Kwangsun; Seo, Hoonkyu; Yoo, Ji-Hyeon; Lee, Seunguk; Woo, Changho; Kim, Eo-Jin;

Published by: Advances in Space Research Published on: may

YEAR: 2022 DOI: 10.1016/j.asr.2022.05.021

COSMIC-2; GOLD; ICON; Low-latitude blobs; NextSat-1; swarm

Neutral composition information in ICON EUV dayglow observations

Since the earliest space‐based observations of Earth s atmosphere, ultraviolet (UV) airglow has proven a useful resource for remote sensing of the ionosphere and thermosphere. The

Tuminello, Richard; England, Scott; Sirk, Martin; Meier, Robert; Stephan, Andrew; Korpela, Eric; Immel, Thomas; Mende, Stephen; Frey, Harald;

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

YEAR: 2022 DOI: 10.1029/2022JA030592

2021

Model of the E-Layer Critical Frequency for the Auroral Region

A new foE model for the auroral region is constructed; the model is based on an analysis of the models of auroral electron precipitations, the boundaries of the discrete and diffusive aurora, the main ionospheric trough, and measurements of the E-layer critical frequency foE. The model is an analytical model. It consists of solar (foEsol) and auroral (foEavr) components. The solar component of the model does not depend of geomagnetic activity. It depends on solar activity via the F index, which is determined by the solar rad ...

Deminov, M.; Shubin, V.; Badin, V.;

Published by: Geomagnetism and Aeronomy Published on: sep

YEAR: 2021 DOI: 10.1134/S0016793221050054

PROBA2 LYRA Occultations: Thermospheric Temperature and Composition, Sensitivity to EUV Forcing, and Comparisons With Mars

A method for retrieving temperature and composition from 150 to 350 km in Earth s thermosphere using total number density measurements made via extreme ultraviolet (EUV) solar occultations by the Project for OnBoard Autonomy 2/Large Yield Radiometer (PROBA2/LYRA) instrument is presented. Systematic and random uncertainties are calculated and found to be less than 5\% for the temperature measurements and 5\%–20\% for the composition measurements. Regression coefficients relating both temperature and the [O]/[N2] abundance r ...

Thiemann, Edward; Dominique, Marie;

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

YEAR: 2021 DOI: 10.1029/2021JA029262

comparative planetology; EUV; occultations; space weather; thermosphere

2020

Analysis of the Impact of Long-Term Changes in the Geomagnetic Field on the Spatial Pattern of the Weddell Sea Anomaly

We simulated the impact of long‐term changes in the geomagnetic field on the spatial pattern of the Weddell Sea Anomaly (WSA). The Weddell Sea Anomaly, belonging to the region

Slominska, Ewa; Strumik, Marek; Slominski, Jan; Haagmans, Roger; Floberghagen, Rune;

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

YEAR: 2020 DOI: 10.1029/2019JA027528

Analysis of the Impact of Long-Term Changes in the Geomagnetic Field on the Spatial Pattern of the Weddell Sea Anomaly

We simulated the impact of long‐term changes in the geomagnetic field on the spatial pattern of the Weddell Sea Anomaly (WSA). The Weddell Sea Anomaly, belonging to the region

Slominska, Ewa; Strumik, Marek; Slominski, Jan; Haagmans, Roger; Floberghagen, Rune;

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

YEAR: 2020 DOI: 10.1029/2019JA027528

2017

Vertical Thermospheric Density Profiles From EUV Solar Occultations Made by PROBA2 LYRA for Solar Cycle 24

A new data set of summed neutral N₂ and O number density profiles, spanning altitudes between 150 and 400\ km, and observed during Northern Winter from 2010 to 2016 is presented. The neutral density profiles are derived from solar occultation measurements made by the 0.1\textendash20\ nm Zr channel on the Large Yield Radiometer (LYRA) instrument on board Project for Onboard Autonomy 2 (PROBA2). The climatology derived from the vertical profiles is consistent with that predicted by the NRLMSISE-00 mode ...

Thiemann, E.; Dominique, M.; Pilinski, M.; Eparvier, F.;

Published by: Space Weather Published on: 12/2017

YEAR: 2017 DOI: 10.1002/2017SW001719

Winter anomaly of the E-layer critical frequency in the nighttime auroral zone

Analysis of the annual variation of the E-layer critical frequency median foE in the nighttime (22-02 LT) auroral zone by the data of several stations of the Northern Hemisphere has shown the median maximum in winter and minimum in summer, even though the summer contribution of solar radiation to foE is greater. Thus, a new phenomenon was discovered\textemdashan foE median winter anomaly in the nighttime auroral zone. Its amplitude (ratio of winter to summer foE figures) can re ...

Deminov, M.; Deminova, G.;

Published by: Geomagnetism and Aeronomy Published on: 10/2017

YEAR: 2017 DOI: 10.1134/S0016793217050061

Winter anomaly of the E-layer critical frequency in the nighttime auroral zone

Deminov, M.; Deminova, G.;

Published by: Geomagnetism and Aeronomy Published on: 10/2017

YEAR: 2017 DOI: 10.1134/S0016793217050061

2016

Wave Interaction with Land, Water and Air

Much of the matter presented in the previous parts of this book aims at providing a unified rationale within which the interaction of the electromagnetic waves with natural and man-made

Solimini, Domenico;

Published by: Published on:

YEAR: 2016 DOI: 10.1007/978-3-319-25633-7_14

2014

Seasonal trends of nighttime plasma density enhancements in the topside ionosphere

In situ registrations of electron density from the Langmuir probe on board Detection of Electro-Magnetic Emissions Transmitted from Earthquake Regions satellite are used to study spatial and temporal evolution of nighttime plasma density enhancements (NPDEs). The study introduces the normalized density difference index I_NDD in order to provide global estimates of the phenomenon. In the validation test, in situ data are compared with synthetic data set generated with the International Reference Ionosphe ...

Slominska, Ewa; Blecki, Jan; Lebreton, Jean-Pierre; Parrot, Michel; Slominski, Jan;

Published by: Journal of Geophysical Research: Space Physics Published on: 08/2014

YEAR: 2014 DOI: 10.1002/2014JA020181

Electron density; Ionosphere; Langmuir probe; Weddell Sea Anomaly

Seasonal trends of nighttime plasma density enhancements in the topside ionosphere

Slominska, Ewa; Blecki, Jan; Lebreton, Jean-Pierre; Parrot, Michel; Slominski, Jan;

Published by: Journal of Geophysical Research: Space Physics Published on: 08/2014

YEAR: 2014 DOI: 10.1002/2014JA020181

Electron density; Ionosphere; Langmuir probe; Weddell Sea Anomaly

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:

2012

A long-lived band of plasma density enhancement at mid-latitudes during the 2003 Halloween magnetic storm

Park, Jaeheung; Lühra, Hermann; Jakowski, Norbert; Gerzen, Tatjana; Kil, Hyosub; Jee, Geonhwa; Xiong, Chao; Min, Kyoung; Noja, Max;

Published by: Journal of Atmospheric and Solar-Terrestrial Physics Published on: Jan-05-2012

YEAR: 2012 DOI: 10.1016/j.jastp.2012.03.009

Dayside and nightside segments of a polar arc: The particle characteristics

Park, J.; Min, K.; Parks, G.; Zhang, Y.; Lee, J.-J.; Baker, J.; Kim, H.; Hwang, J.; Yumoto, K.; Uozumi, T.; Lee, C.;

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

YEAR: 2012 DOI: 10.1029/2011JA017323

2011

FUV spectrum in the polar region during slightly disturbed geomagnetic conditions

Lee, C.; Min, K.; Lee, J.-J.; Hwang, J.; Park, J.; Edelstein, J.; Han, W.;

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

YEAR: 2011 DOI: 10.1029/2011JA016898

2010

Neutral density depletions associated with equatorial plasma bubbles as observed by the CHAMP satellite

Using CHAMP observations from 2002 to 2005 we investigate neutral density depletions (NDDs) associated with equatorial plasma bubbles (EPBs). The seasonal–longitudinal distribution of NDDs generally follows that of EPBs. However, there are several important differences between them. The maximum NDD occurrence rate is much smaller than the maximum EPB occurrence. NDDs occur at latitudes north and south of the dip equator with an offset of about 15∘, which is collocated with the Appleton anomaly peaks and slightly poleward ...

Park, Jaeheung; Lühr, Hermann; Min, Kyoung;

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

YEAR: 2010 DOI: https://doi.org/10.1016/j.jastp.2009.11.003

ionospheric irregularities; Equatorial ionosphere; thermospheric dynamics; ionosphere/atmosphere interactions

2009

The characteristics of field-aligned currents associated with equatorial plasma bubbles as observed by the CHAMP satellite

Park, J.; Lühr, H.; Stolle, C.; Rother, M.; Min, K.; Michaelis, I.;

Published by: Annales Geophysicae Published on: Jan-01-2009

YEAR: 2009 DOI: 10.5194/angeo-27-2685-2009

Validation of Ionospheric Measurements from the International Space Station (ISS)

Coffey, Victoria; Minow, Joseph; Wright, Kenneth;

Published by: Published on:

YEAR: 2009 DOI:

The 27-day modulation of the low-latitude ionosphere during a solar maximum

Min, Kyoung; Park, Jaeheung; Kim, Heejun; Kim, Vitaly; Kil, Hyosub; Lee, Jaejin; Rentz, Stefanie; Lühr, Hermann; Paxton, Larry;

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

YEAR: 2009 DOI:

2008

Validation of the Plasma Densities and Temperatures From the ISS Floating Potential Measurement Unit

The validation of the floating potential measurement unit (FPMU) plasma density and temperature measurements is an important step in the process of evaluating International Space Station (ISS) spacecraft charging issues including vehicle arcing and hazards to crew during extravehicular activities. The highest potentials observed on the Space Station are due to the combined Vsp times B effects on a large spacecraft and the collection of ionospheric electron and ion currents by the 160-V U.S. solar array modules. The ionospher ...

Coffey, Victoria; Wright, Kenneth; Minow, Joseph; Schneider, Todd; Vaughn, Jason; Craven, Paul; Chandler, Michael; Koontz, Steven; Parker, Linda; Bui, Them;

Published by: IEEE Transactions on Plasma Science Published on: Oct

YEAR: 2008 DOI: 10.1109/TPS.2008.2004271

Effects of solar activity variations on the low latitude topside nighttime ionosphere

Park, S.M.; Kim, H.; Min, S.; Park, J.; Lee, J.H.; Kil, H.; Paxton, L.; Su, S.-Y.; Lee, J.; Min, K.W.;

Published by: Advances in Space Research Published on: Jan-08-2008

YEAR: 2008 DOI: 10.1016/j.asr.2007.11.031

Effects of solar activity variations on the low latitude topside nighttime ionosphere

Park, S.M.; Kim, H.; Min, S.; Park, J.; Lee, J.H.; Kil, H.; Paxton, L.; Su, S.-Y.; Lee, J.; Min, K.W.;

Published by: Advances in Space Research Published on: Jan-08-2008

YEAR: 2008 DOI: 10.1016/j.asr.2007.11.031

In-situ observations of the Ionospheric F2-Region from the International Space Station

The International Space Station orbit provides an ideal platform for in-situ studies of space weather effects on the mid and low latitude F-2 region ionosphere. The Floating Potential Measurement Unit (FPMU) operating on the ISS since Aug 2006, is a suite of plasma instruments: a Floating Potential Probe (FPP), a Plasma Impedance Probe (PIP), a Wide-sweep Langmuir Probe (WLP), and a Narrow-sweep Langmuir Probe (NLP). This instrument package provides a new opportunity for collaborative multi-instrument studies of the F-region ...

Coffey, Victoria; Wright, Kenneth; Minow, Joseph; Chandler, Michael; Parker, Linda;

Published by: Published on:

YEAR: 2008 DOI:

In-Situ F2-Region Plasma Density and Temperature Measurements from the International Space Station

Coffey, Victoria; Wright, Kenneth; Minow, Joseph;

Published by: Published on:

YEAR: 2008 DOI:

2007

Validation of ISS Floating Potential Measurement Unit Electron Densities and Temperatures

Validation of the Floating Potential Measurement Unit (FPMU) electron density and temperature measurements is an important step in the process of evaluating International Space Station spacecraft charging issues .including vehicle arcing and hazards to crew during extravehicular activities. The highest potentials observed on Space Station are due to the combined VxB effects on a large spacecraft and the collection of ionospheric electron and ion currents by the 160 V US solar array modules. Ionospheric electron environmen ...

Coffey, V.; Minow, J.; Schneider, T.; Vaughn, J.; Craven, P.; Parker, L.; Bui, T.; Wright, K.; Koontz, S.;

Published by: Published on: 06/2007

YEAR: 2007 DOI:

Longitudinal structure of the vertical E$\times$ B drift and ion density seen from ROCSAT-1

Kil, Hyosub; Oh, S-J; Kelley, MC; Paxton, LJ; England, SL; Talaat, E; Min, K-W; Su, S-Y;

Published by: Geophysical Research Letters Published on:

YEAR: 2007 DOI:

Spike-like change of the vertical E$\times$ B drift in the equatorial region during very large geomagnetic storms

Kil, H; Oh, S-J; Paxton, LJ; Zhang, Y; Su, S-Y; Min, K-W;

Published by: Geophysical research letters Published on:

YEAR: 2007 DOI:

2006