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Found 29 entries in the Bibliography.
Showing entries from 1 through 29
| 2022 |
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Following the 2022 Tonga Volcano eruption, dramatic suppression and deformation of the equatorial ionization anomaly (EIA) crests occurred in the American sector ∼14,000 km away from the epicenter. The EIA crests variations and associated ionosphere-thermosphere disturbances were investigated using Global Navigation Satellite System total electron content data, Global-scale Observations of the Limb and Disk ultraviolet images, Ionospheric Connection Explorer wind data, and ionosonde observations. The main results are as fo ... Aa, Ercha; Zhang, Shun-Rong; Wang, Wenbin; Erickson, Philip; Qian, Liying; Eastes, Richard; Harding, Brian; Immel, Thomas; Karan, Deepak; Daniell, Robert; Coster, Anthea; Goncharenko, Larisa; Vierinen, Juha; Cai, Xuguang; Spicher, Andres; Published by: Journal of Geophysical Research: Space Physics Published on: YEAR: 2022 DOI: 10.1029/2022JA030527 EIA suppression and X-pattern; Equatorial ionization anomaly; GNSS TEC; GOLD UV images; ICON MIGHTI neutral wind; Tonga volcano eruption |
| 2021 |
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Latitudinal Dependence of Ionospheric Responses to Some Geomagnetic Storms during Low Solar Activity The Latitudinal dependence in the response of the Ionospheric F2-layer electron density (NmF2) and peak height (hmF2) to three geomagnetic storms of May and August 2010 has been examined. The data-sets used for the study were obtained from Ilorin, Nigeria (1.87° S/76.67° E), San Vito, Italy (34.68° N/90.38° E), Hermanus, South Africa (42.34° S/82.15° E), and Pruhonice, Czech Republic (45.66° N/90.38° E) geomagnetic coordinates. The quiet time result shows that the rise in NmF2 began earlier at San Vito, followed by P ... Joshua, B.; Adeniyi, J.; Olawepo, A.; Rabiu, Babatunde; Daniel, Okoh; Adebiyi, S.; Adebesin, B.; Ikubanni, S.; Abdurahim, B.; Published by: Geomagnetism and Aeronomy Published on: may YEAR: 2021 DOI: 10.1134/S0016793221030063 Electric field; Electron density; Geomagnetic storms; magnetosphere; peak height |
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The Global-scale Observations of the Limb and Disk (GOLD) mission, launched in 2018, aims to investigate the low latitude ionosphere from a geostationary orbit at 47.5°W. It uses two identical spectrometers measuring the wavelength range from 134.0 to 163.0 nm. The configuration of the Earth s magnetic field shows that the largest offset between geographic and geomagnetic equators occurs in the longitude sectors sampled by GOLD. In an attempt to investigate the longitude dependence of the occurrence rate and time of onset o ... 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: 10.1029/2020JA028510 F region; longitude variability; plasma bubbles; Plasma depletions; upward drifts |
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Observations of far-ultraviolet (FUV) dayglow by the Global-scale Observations of Limb and Disk (GOLD) mission provide a new opportunity to monitor relative composition changes in the upper atmosphere as well as solar extreme ultraviolet (EUV) variability. Relative composition changes are quantified by ΣO/N2, the column density ratio of atomic oxygen to molecular nitrogen, while QEUV provides a measure of the solar EUV energy flux from 1 to 45 nm into the upper atmosphere. This spectral range provides the ionizing radiation ... Correira, J.; Evans, J.; Lumpe, J.; Krywonos, A.; Daniell, R.; Veibell, V.; McClintock, W.; Eastes, R.; Published by: Journal of Geophysical Research: Space Physics Published on: YEAR: 2021 DOI: 10.1029/2021JA029517 GOLD; neutral composition; ON2; QEUV; radiative recombination; thermosphere |
| 2020 |
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Karan, Deepak; Daniell, Robert; England, Scott; Martinis, Carlos; Eastes, Richard; Burns, Alan; McClintock, William; Published by: Journal of Geophysical Research: Space Physics Published on: |
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Comparison of GOLD nighttime measurements with total electron content: Preliminary results The National Aeronautics and Space Administration (NASA) Global‐scale Observations of the Limb and Disk (GOLD) has been imaging the thermosphere and ionosphere since Cai, Xuguang; Burns, Alan; Wang, Wenbin; Coster, Anthea; Qian, Liying; Liu, Jing; Solomon, Stanley; Eastes, Richard; Daniell, Robert; McClintock, William; Published by: Journal of Geophysical Research: Space Physics Published on: YEAR: 2020 DOI: 10.1029/2019JA027767 |
| 2019 |
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Global-scale Observations of the Equatorial Ionization Anomaly Abstract 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 contras ... Eastes, R.; Solomon, S.; Daniell, R.; Anderson, D.; Burns, A.; England, S.; Martinis, C.; McClintock, W.; Published by: Geophysical Research Letters Published on: YEAR: 2019 DOI: https://doi.org/10.1029/2019GL084199 Equatorial ionosphere; ionospheric irregularities; ionospheric dynamics; Ionospheric storms; forecasting; airglow and aurora |
| 2018 |
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Global-scale Observations of the Limb and Disk (GOLD): science implementation
McClintock, William; Eastes, Richard; Andersson, Laila; Burns, Alan; Codrescu, Mihail; Daniell, Robert; England, Scott; Evans, Scott; Krywonos, Andrey; Lumpe, Jerry; , others; Published by: Published on: |
| 2017 |
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The Global-Scale Observations of the Limb and Disk (GOLD) Mission The Earth\textquoterights thermosphere and ionosphere constitute a dynamic system that varies daily in response to energy inputs from above and from below. This system can exhibit a significant response within an hour to changes in those inputs, as plasma and fluid processes compete to control its temperature, composition, and structure. Within this system, short wavelength solar radiation and charged particles from the magnetosphere deposit energy, and waves propagating from the lower atmosphere dissipate. Understand ... Eastes, R.; McClintock, W.; Burns, A.; Anderson, D.; Andersson, L.; Codrescu, M.; Correira, J.; Daniell, R.; England, S.; Evans, J.; Harvey, J.; Krywonos, A.; Lumpe, J.; Richmond, A.; Rusch, D.; Siegmund, O.; Solomon, S.; Strickland, D.; Woods, T.; Aksnes, A.; Budzien, S.; Dymond, K.; Eparvier, F.; Martinis, C.; Oberheide, J.; Published by: Space Science Reviews Published on: 10/2017 YEAR: 2017 DOI: 10.1007/s11214-017-0392-2 |
| 2016 |
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Scanless ultraviolet remote sensor for limb profile measurements from low earth orbit
Krywonos, Andrey; Harvey, James; Daniell, Robert; Eastes, Richard; Peterson, Gary; Published by: Optical Engineering Published on: Jan-10-2006 YEAR: 2016 DOI: 10.1117/1.2360200 |
| 2013 |
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The GOLD Science Data Center-Algorithm Heritage, Data Product Descriptions and User Services
Lumpe, JD; Foroosh, H; Eastes, R; Krywonos, A; Evans, JS; Burns, AG; Strickland, DJ; Daniell, RE; England, S; Solomon, SC; , others; Published by: Published on: |
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The Science of the Global-scale measurements of the Limb and Disk (GOLD) Mission
Burns, AG; Eastes, R; McClintock, WE; Solomon, SC; Anderson, DN; Andersson, L; Codrescu, M; Daniell, RE; Harvey, J; Krywonos, A; , others; Published by: Published on: |
| 2012 |
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This paper presents remotely sensed neutral temperatures obtained from ultraviolet observations and compares them with temperatures from the NRLMSISE-00 version of the Mass Spectrometer and Incoherent Scatter (MSIS) model (unconstrained and constrained to match the total densities from satellite drag). Latitudinal profiles of the temperatures in the Earth\textquoterights thermosphere are obtained by inversion of high-resolution (\~1.3\ \r A) observations of the (1,1) and (5,4) Lyman-Birge-Hopfield (LBH) bands of N Krywonos, Andrey; Murray, D.; Eastes, R.; Aksnes, A.; Budzien, S.; Daniell, R.; Published by: Journal of Geophysical Research Published on: 09/2012 YEAR: 2012 DOI: 10.1029/2011JA017226 airglow; N2; remote sensing; satellite drag; temperature; thermosphere |
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Global-scale Observations of the Limb and Disk (GOLD)
Eastes, R; McClintock, W; Aksnes, A; Anderson, D; Andersson, L; Burns, A; Budzien, S; Codrescu, M; Daniell, R; Dymond, K; , others; Published by: AMC Published on: |
| 2011 |
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Modeled and observed N 2 Lyman-Birge-Hopfield band emissions: A comparison
Eastes, R.; Murray, D.; Aksnes, A.; Budzien, S.; Daniell, R.; Krywonos, A.; Published by: Journal of Geophysical Research Published on: Jan-01-2011 YEAR: 2011 DOI: 10.1029/2010JA016417 |
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Modeled and observed N2 Lyman-Birge-Hopfield band emissions: A comparison
Eastes, RW; Murray, DJ; Aksnes, A; Budzien, SA; Daniell, RE; Krywonos, A; Published by: Journal of Geophysical Research: Space Physics Published on: |
| 2008 |
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Eastes, R; Burns, AG; McClintock, W; Aksnes, A; Anderson, D; Andersson, L; Budzien, S; Codrescu, M; Daniell, R; England, S; , others; Published by: Published on: |
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Eastes, RW; Anderson, DN; McClintock, WE; Aksnes, A; Andersson, L; Burns, AG; Budzien, SA; Codrescu, MV; Daniell, RE; Dymond, KF; , others; Published by: Published on: |
| 2007 |
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Strickland, D.; Lean, J.; Daniell, R.; Knight, H.; Woo, W.; Meier, R.; Straus, P.; Woods, T.; Eparvier, F.; McMullin, D.; Christensen, A.; Morrison, D.; Paxton, L.; Published by: Journal of Geophysical Research Published on: Jan-01-2007 YEAR: 2007 DOI: 10.1029/2006JA012074 |
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Eastes, R; Codrescu, M; McClintock, W; Aksnes, A; Anderson, D; Andersson, L; Burns, A; Budzien, S; Daniell, R; Dymond, K; , others; Published by: Published on: |
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Global Observations of the Limb and Disk (GOLD): Temperature Measurements
Rusch, D; Aksnes, A; Budzien, S; Eastes, R; Anderson, D; Andersson, L; Burns, A; Codrescu, M; Daniell, R; Dymond, K; , others; Published by: Published on: |
| 2006 |
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Global-scale Observations of the Limb and Disk (GOLD): Mission Implementation
McClintock, W; Lankton, M; Estes, R; Aksens, A; Anderson, D; Andersson, L; Codrescu, M; Burns, A; Daniell, R; Eparvier, F; , others; Published by: Published on: |
| 2005 |
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Auroral-E electron density profiles to be derived from SESS particle data
Evans, JS; Daniell, RE; Knight, H; Strickland, DJ; Rodriguez, JV; Published by: Published on: |
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Vertical Structure of the Thermosphere and Ionosphere During Geomagnetic Storms in May 2002
Daniell, RE; Burns, AG; Strickland, DJ; Meier, RR; Paxton, LJ; Published by: Published on: |
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E-Layer Variations During an X-Class Flare Inferred from Far Ultraviolet Dayglow Observations
Strickland, D.; Daniell, R.; Meier, R.; Lean, J.; Published by: Published on: |
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E-Layer Variations During X-Class Flares Inferred from Far Ultraviolet Dayglow Observations A study is reported that addresses dayglow and ionospheric response to X-class flares that occurred on Oct 28 and Nov 4 2003. Data of interest are 1) the dayglow observations by GUVI and solar EUV/X-ray observations by SEE (both on NASA\textquoterights TIMED satellite), 2) E-region measurements made by the EISCAT radar (on Oct 28) located at Troms\o, Norway, and 3) E-region/F-region IOX GPS occultation measurements (on Nov 4). The timing of the flares was fortunate in that TIMED was on the dayside portion of its orbit whe ... Strickland, D.~J.; Daniell, R.~E.; Meier, R.~R.; Lean, J.~L.; Straus, P.~R.; Morrison, M.~D.; Paxton, L.; Published by: AGU Fall Meeting Abstracts Published on: 2479 Solar radiation and cosmic ray effects; 7519 Flares; 7549 Ultraviolet emissions; 7974 Solar effects |
| 2004 |
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Lookup tables for transionospheric effects on signals
Strickland, DJ; Barnes, RP; Kochenash, AJ; Jones, WA; Reilly, MH; Daniell, RE; Published by: Radio Science Published on: |
| 2001 |
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Strickland, DJ; Daniell, RE; Craven, JD; Published by: Journal of Geophysical Research: Space Physics Published on: |
| 1997 |
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UV observations of extended galaxies with UVISI
Allen, MM; Murthy, J; Daniels, J; Dring, AR; Newcomer, RE; Henry, RC; Paxton, L; Tedesco, E; Published by: Published on: |
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