Bibliography
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Found 26 entries in the Bibliography.
Showing entries from 1 through 26
2019 |
The Low-Latitude Ionosphere/Thermosphere Enhancements in Density (LLITED) Mission Bishop, Rebecca; Walterscheid, Richard; Clemmons, James; Barjatya, Aroh; Gunter, Liam; Published by: Published on: |
2017 |
UV Airglow images from TIMED GUVI clearly showing the equatorial anomaly with embedded depletions that have penetrated through the F peak. Green, Red and Blue traces show the Spann, James; Swenson, Charles; Durao, Otavio; Loures, Luis; Heelis, Rod; Bishop, Rebecca; Le, Guan; Abdu, Mangalathayil; Krause, Linda; Fry, Craig; , others; Published by: Published on: |
Richard Walterscheid1 1The Aerospace Corporation 2Embry-Riddle Aeronautical University Bishop, Rebecca; Clemmons, James; Barjatya, Aroh; Published by: Published on: |
The scintillation prediction observations research task (sport) mission Fry, G; Spann, James; Swenson, Charles; Durao, Otavio; Loures, Luis; Heelis, Rod; Bishop, Rebecca; Le, Guan; Abdu, Mangalathayli; Krause, Linda; , others; Published by: Published on: |
Spann, James; Swenson, Charles; Dur\~ao, Otavio; Loures, Luis; Heelis, Rod; Bishop, Rebecca; Le, Guan; Abdu, Mangalathayil; Krause, Linda; Denardin, Clezio; , others; Published by: Published on: |
2016 |
SPORT: The Scintillation Prediction Observations Research Task Spann, James; Swenson, Charles; Durao, Otavio; Loures, Luis; Heelis, Rod; Bishop, Rebecca; Le, Guan; Krause, Linda; Nardin, Clezio; Fonseca, Eloi; , others; Published by: Published on: |
2015 |
A new technique for remote sensing of O 2 density from 140 to 180 km Observations of molecular oxygen are difficult to make in the Earth\textquoterights atmosphere between 140 and 200 km altitude. Perhaps the most accurate measurements to date have been obtained from satellite instruments that measure solar occultations of the limb. These do provide height-resolved O2 density measurements, but the nature of this technique is such that the temporal/spatial distribution of the measurements is uneven. Here a new space-based technique is described that utilizes two bright dayglow emissions, the (0,0) transition of the O2 atmospheric band and the O I (630 nm), to derive the height-resolved O2 density from 140 to 180 km. Data from the Remote Atmospheric and Ionospheric Detection System, which was placed on the International Space Station in late 2009, are used to illustrate this technique. The O2 density results for periods in May 2010 that were geomagnetically quiet and disturbed are compared to model predictions. Hecht, James; Christensen, Andrew; Yee, Jeng-Hwa; Crowley, Geoff; Bishop, Rebeeca; Budzien, Scott; Stephan, Andrew; Evans, Scott; Published by: Geophysical Research Letters Published on: 01/2015 YEAR: 2015   DOI: 10.1002/2014GL062355 |
Remote sensing of Earth's limb by TIMED/GUVI: Retrieval of thermospheric composition and temperature The Global Ultraviolet Imager (GUVI) onboard the Thermosphere-Ionosphere-Mesosphere Energetics and Dynamics (TIMED) satellite senses far ultraviolet emissions from O and N2 in the thermosphere. Transformation of far ultraviolet radiances measured on the Earth limb into O, N2, and O2 number densities and temperature quantifies these responses and demonstrates the value of simultaneous altitude and geographic information. Composition and temperature variations are available from 2002 to 2007. This paper documents the extraction of these data products from the limb emission rates. We present the characteristics of the GUVI limb observations, retrievals of thermospheric neutral composition and temperature from the forward model, and the dramatic changes of the thermosphere with the solar cycle and geomagnetic activity. We examine the solar extreme ultraviolet (EUV) irradiance magnitude and trends through comparison with simultaneous Solar Extreme EUV (SEE) measurements on TIMED and find the EUV irradiance inferred from GUVI averaged (2002\textendash2007) 30\% lower magnitude than SEE version 11 and varied less with solar activity. The smaller GUVI variability is not consistent with the view that lower solar EUV radiation during the past solar minimum is the cause of historically low thermospheric mass densities. Thermospheric O and N2 densities are lower than the NRLMSISE-00 model, but O2 is consistent. We list some lessons learned from the GUVI program along with several unresolved issues. Meier, R.; Picone, J.; Drob, D.; Bishop, J.; Emmert, J.; Lean, J.; Stephan, A.; Strickland, D.; Christensen, A.; Paxton, L.; Morrison, D.; Kil, H.; Wolven, B.; Woods, Thomas; Crowley, G.; Gibson, S.; Published by: Earth and Space Science Published on: 01/2015 YEAR: 2015   DOI: 10.1002/2014EA000035 airglow and aurora; remote sensing; thermosphere: composition and chemistry; thermosphere: energy deposition |
A new technique for remote sensing of O2 density from 140 to 180 km Hecht, James; Christensen, Andrew; Yee, Jeng-Hwa; Crowley, Geoff; Bishop, Rebeeca; Budzien, Scott; Stephan, Andrew; Evans, Scott; Published by: Geophysical Research Letters Published on: |
The Scintillation Prediction Observations Research Task SA43C-04 Spann, James; Swenson, Charles; Dur\~ao, Otavio; Loures, Luis; Heelis, Rod; Bishop, Rebecca; Le, Guan; Krause, Linda; Nardin, Clezio; Fonseca, Eloi; , others; Published by: Published on: |
2013 |
[1]\ Measurements of the Earth\textquoterights low latitude thermosphere returned by the ionization gauge on the Streak mission are reported and discussed. The measurements are of the amount of gas rammed into the sensor by its passage through the thermospheric medium. They were obtained in the dusk sector in the altitude range 130\textendash330 km and are shown to be strongly structured by the geomagnetic field. Similarities to the structure of the equatorial ionization anomaly are discussed. The structure is interpreted as being due to rapid (several hundred meters per second) meridional winds having an antisymmetric pattern with respect to the geomagnetic equator. The measurements are interpreted in light of results from other missions and are shown to fit well with ideas based on complementary measurements from the Dynamics Explorer 2 mission discussed as the Equatorial Temperature and Wind Anomaly. Several features of these winds are described and discussed, including their altitude dependence, how they form convection cells that extend to high latitude, and how the wind amplitudes vary with geographic longitude with an apparent wavenumber one variation. The latter characteristic is shown to be consistent with being the signature of tidal variations observed by others. Approximate calculations utilizing published values for the pertinent parameters are used to show that heating from the dissipation due to ion drag within the ionospheric F region is a dominant driver of the inferred winds. Clemmons, J.; Walterscheid, R.; Christensen, A.; Bishop, R.; Published by: Journal of Geophysical Research: Space Physics Published on: 02/2013 YEAR: 2013   DOI: 10.1029/2012JA017661 |
2011 |
Christensen, AB; Yee, J; Budzien, SA; Bishop, RL; Hecht, JH; Stephan, AW; Crowley, G; Published by: Published on: |
2010 |
A comprehensive rocket and radar study of midlatitude spread F Earle, GD; Bhaneja, P; Roddy, PA; Swenson, CM; Barjatya, Aroh; Bishop, RL; Bullett, TW; Crowley, G; Redmon, R; Groves, K; , others; Published by: Journal of Geophysical Research: Space Physics Published on: |
2009 |
Stephan, Andrew; Budzien, Scott; Bishop, Rebecca; Straus, Paul; Christensen, Andrew; Hecht, James; Van Epps, Zachary; Published by: Published on: |
Christensen, AB; Bishop, RL; Budzien, SA; Hecht, JH; Stephan, AW; Straus, PR; van Epps, Z; Published by: Published on: |
2007 |
Multi-Platform Ground-Based Observations of Meso-Scale Waves and Spread F at Midlatitudes Earle, G; Bullett, T; Groves, K; Bishop, R; Crowley, G; Bust, G; Tolman, B; Calfas, R; Garner, T; Munton, D; Published by: Published on: |
GPS Occultation Measurements of Post-Sunset E-Region Conductivity Straus, PR; Bishop, R; Crowley, G; Published by: Published on: |
Atomic oxygen photoionization rates computed with high resolution cross sections and solar fluxes Meier, RR; McLaughlin, Brendan; Warren, HP; Bishop, James; Published by: Geophysical research letters Published on: |
2006 |
Photoionization Rate of Atomic Oxygen Meier, RR; McLaughlin, BM; Warren, HP; Bishop, J; Published by: Published on: |
Measurements of the E-and F-Region Post-Sunset Ionosphere Straus, PR; Bishop, R; Crowley, G; Published by: Published on: |
2004 |
Electron Density Profiles and Total Electron Content at Low Latitudes During Magnetic Storms de La Beaujardiere, O; Cooke, DL; Retterer, JM; Crowley, G; Bishop, GJ; Welsh, JA; Doherty, PH; Published by: Published on: |
2003 |
Retrieval of thermospheric temperature and N2, O, and O2 concentrations from GUVI limb scans Meier, RR; Strickland, DJ; Picone, JM; Christensen, AB; Paxton, LJ; Morrison, D; Kil, H; Bishop, J; Drob, D; Craven, JD; , others; Published by: Published on: |
2002 |
Molecular Oxygen in the Thermosphere: Issues and Measurement Strategies Picone, JM; Hedin, AE; Drob, DP; Meier, RR; Bishop, J; Budzien, SA; Published by: Published on: |
Ionospheric and dayglow responses to the radiative phase of the Bastille Day flare Meier, RR; Warren, HP; Nicholas, AC; Bishop, J; Huba, JD; Drob, DP; Lean, JL; Picone, JM; Mariska, JT; Joyce, G; , others; Published by: Geophysical research letters Published on: |
Parameterizations of solar EUV irradiance variations for use in upper atmosphere density models Lean, JL; Picone, JM; Mariska, JT; Warren, HP; Knowles, S; Bishop, J; Meier, RR; Published by: Advances in the Astronautical Sciences Published on: |
2001 |
Thermospheric atomic hydrogen densities and fluxes from dayside Lyman $\alpha$ measurements Published by: Journal of Atmospheric and Solar-Terrestrial Physics Published on: |
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