GUVI Biblio

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 ...

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

Attribution of interminima changes in the global thermosphere and ionosphere

We present a statistical attribution analysis of the changes in global annual average thermospheric mass density and ionospheric total electron content (TEC) between the cycle 22/23 solar minimum (which occurred at epoch 1996.4) and the prolonged cycle 23/24 minimum (2008.8). The mass density data are derived from orbital drag, and the TEC data are derived from ground-based GPS receivers. The interminima change in mass density was -36\% relative to the 1996.4 yearly average. Considering each multiplicative forcing indepen ...

Emmert, J.; McDonald, S.; Drob, D.; Meier, R.; Lean, J.; Picone, J.;

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

YEAR: 2014     DOI: 10.1002/2013JA019484

ionosphere total electron content; solar minimum; thermosphere mass density

Theoretical tools for studies of low-frequency thermospheric variability

[1]\ This paper supports studies of low-frequency variability (LFV) within the thermosphere by deriving approximate integral and closed-form solutions of a nontrivial model of thermospheric temperature, density, and composition depending on altitude and time. We also provide a paradigm for applying dimensional analysis in such studies. The domain is the region between the mesopause and the exobase. The solutions emphasize the connectedness of the thermosphere, i.e., nonlocal influences of LFV in key physical paramete ...

Picone, J.; Meier, R.; Emmert, J.;

Published by: Journal of Geophysical Research: Space Physics      Published on: 09/2013

YEAR: 2013     DOI: 10.1002/jgra.v118.910.1002/jgra.50472

dimensional analysis; low frequency variation; Pi Theorem; seasonal variation; semi-annual variation; thermospheric variability

SAMI3 Simulations of Ionospheric Variability from 1996 to 2011

McDonald, SE; Lean, J; Huba, JD; Emmert, JT; Drob, DP; Siefring, CL; Meier, RR; Picone, J;

Published by:       Published on:

YEAR: 2012     DOI:

Global and regional trends in ionospheric total electron content

Lean, J.; Emmert, J.; Picone, J.; Meier, R.;

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

YEAR: 2011     DOI: 10.1029/2010JA016378

Ionospheric total electron content: Global and hemispheric climatology

Lean, J.; Meier, R.; Picone, J.; Emmert, J.;

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

YEAR: 2011     DOI: 10.1029/2011JA016567

Simulating Ionospheric Variability in the Descending Phase of Solar Cycle-23 using SAMI3

McDonald, SE; Lean, J; Huba, JD; Joyce, GR; Emmert, JT; Drob, DP; Stephan, AW; Siefring, CL; Meier, RR; Picone, J;

Published by:       Published on:

YEAR: 2011     DOI:

Record-low thermospheric density during the 2008 solar minimum

Emmert, J.; Lean, J.; Picone, J.;

Published by: Geophysical Research Letters      Published on: Jan-06-2010

YEAR: 2010     DOI: 10.1029/2010GL043671

Integrating the Sun-Earth System for the Operational Environment (ISES-OE)

Lean, J.; Huba, J.; McDonald, S.; Slinker, S.; Drob, D.; Emmert, J.; Meier, R.; Picone, J.; Joyce, G.; Krall, J.; Stephan, A.; Roach, K.; Knight, H.; Plunkett, S.; Wu, C.-C.; Wood, B.; Wang, Y.-M.; Howard, R.; Chen, J.; Bernhardt, P.; Fedder, J.;

Published by:       Published on:

YEAR: 2010     DOI:

Thermospheric global average density trends, 1967--2007, derived from orbits of 5000 near-Earth objects

We use orbit data on ∼5000 near-Earth space objects to investigate long-term trends in thermospheric total mass density, which has been predicted to decrease with time due to increasing CO2 concentrations. We refine and extend to 2007 previous density trend estimates, and investigate solar cycle-dependent bias in empirical density models previously used to filter out solar irradiance effects. We find that the bias is caused in part by the solar cycle dependence of the long-term trends, and we develop a new representation ...

Emmert, JT; Picone, IM; Meier, RR;

Published by: Geophysical Research Letters      Published on:

YEAR: 2008     DOI: 10.1029/2007GL032809

Influence of systematic error on least squares retrieval of upper atmospheric parameters from the ultraviolet airglow

This paper investigates the effect of simple systematic error, or bias (i.e., in the magnitude of data or an associated model), on physical parameters retrieved by least squares algorithms from observations that are indexed by an independent variable. This factor is now of critical interest with the advent of global, space-based ultraviolet remote sensing of thermospheric and ionospheric composition by experimental and operational systems. A finite bias between an observed intensity profile and the parametric physical model ...

Picone, J.;

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

YEAR: 2008     DOI: https://doi.org/10.1029/2007JA012831

systematic error; discrete inverse theory; airglow

Long-term climatology and trends of global average thermospheric density

Emmert, John; Picone, Michael; Meier, Robert;

Published by: 37th COSPAR Scientific Assembly      Published on:

YEAR: 2008     DOI:

Thermospheric densities derived from spacecraft orbits: Application to the Starshine satellites

Lean, J.; Picone, J.; Emmert, J.; Moore, G.;

Published by: Journal of Geophysical Research      Published on: Jan-01-2006

YEAR: 2006     DOI: 10.1029/2005JA011399

TIMED Contributions to Mesosphere, Lower Thermosphere, and Ionosphere Science-A10S16 Thermospheric density 2002-2004: TIMED/GUVI dayside limb observations and satellite drag

Emmert, JT; Meier, RR; Picone, JM; Lean, JL; Christensen, AB;

Published by: Journal of Geophysical Research      Published on:

YEAR: 2006     DOI: 10.1029/2005JA011495

Thermospheric density 2002–2004: TIMED/GUVI dayside limb observations and satellite drag

We use TIMED/GUVI dayside limb observations of thermospheric far ultraviolet (FUV) dayglow to infer height profiles of total mass density during the period 2002–2004. We compare these data with total mass density derived from drag-induced changes in the orbits of satellites with perigee heights ranging from 200 to 600 km. To accommodate sampling differences, we compute the ratio of observed total mass density, filtered on a 3-day timescale, to that predicted by the NRLMSISE-00 empirical model. The GUVI densities are in goo ...

Emmert, JT; Meier, RR; Picone, JM; Lean, JL; Christensen, AB;

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

YEAR: 2006     DOI: https://doi.org/10.1029/2005JA011495

Thermospheric density 2002—2004: TIMED/GUVI dayside limb observations and satellite drag

Emmert, JT; Meier, RR; Picone, JM; Lean, JL; Christensen, AB;

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

YEAR: 2006     DOI:

Comparison of Thermospheric Density Derived From TIMED/GUVI Limb Observations with Total Mass Density Derived From Satellite Orbits

Emmert, JT; Meier, RR; Picone, JM; Lean, JL;

Published by:       Published on:

YEAR: 2005     DOI:

Orbital Drag-Atmospheric Density Concept of Operations2004 Update

The Global UV Imager (GUVI), a predecessor instrument to SSUSI, has shown promising, though limited, comparison to orbit-based densities. Current operations at the SCC rely on

Buell, Diane; Walterscheid, Richard; Marcos, Frank; Fuller-Rowell, Tim; Picone, J; Storz, Mark; Owens, Jerry;

Published by:       Published on:

YEAR: 2005     DOI:

SSUSI and GUVI limb scans of thermospheric neutral density changes during a geomagnetic storm

Stephan, AW; Picone, JM; Meier, RR; Emmert, JT; Paxton, LJ; Morrison, D; Wolven, B; Kil, H;

Published by:       Published on:

YEAR: 2005     DOI:

Similarity transformation method for data processing and visualization

Picone, Michael; Meier, Robert;

Published by:       Published on: 3

YEAR: 2004     DOI:

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:

YEAR: 2003     DOI:

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:

YEAR: 2002     DOI:

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:

YEAR: 2002     DOI:

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:

YEAR: 2002     DOI:

Retrieval of absolute thermospheric concentrations from the far UV dayglow: An application of discrete inverse theory

Meier, RR; Picone, JM;

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

YEAR: 1994     DOI: