SSUSI Bibliography
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Found 9 entries in the Bibliography.
Showing entries from 1 through 9
2014 |
The Earth\textquoterights ionosphere is a highly dynamic region that is almost constantly in a state of flux. Solar radiation, geomagnetic activity, chemical reactions, and natural dynamics all act to perturb the state of the ionosphere. The ionosphere changes on time scales of hours to days, with the fine-scale ionospheric structures that are frequently observed lacking in global physics-based models due to time-step and spatial resolution constraints. To properly specify the ionosphere, data is needed, thus data assimilation. The Utah State University GAIM-GM model uses a data assimilation method to correct a physics-based model of the ionosphere using 5 different data types, divided into 9 different data sources. Multiple data types are necessary because the data from any individual data source will not be sufficient for global reconstructions. The GAIM-GM specification (in real-time) can then be used to correct for ionospheric propagation delays, thereby improving geo-location and communications. The focus here is to show the quantitative effects that multiple data types have on GAIM-GM ionospheric specifications for a relatively quiet day (April 19) in 2012. Gardner, L.; Schunk, R.; Scherliess, L.; Sojka, J.; Zhu, L.; Published by: Space Weather Published on: 11/2014 YEAR: 2014   DOI: 10.1002/2014SW001104 |
2010 |
Continued Development and Validation of the USU GAIM Models Published by: Published on: |
2009 |
Ionospheric dynamics and drivers obtained from a physics-based data assimilation model Scherliess, Ludger; Thompson, Donald; Schunk, Robert; Published by: Radio Science Published on: Jan-02-2009 YEAR: 2009   DOI: 10.1029/2008RS004068 |
2008 |
Dandenault, P; Coker, C; Thonnard, S; Schunk, B; Thompson, D; Smith, D; Weaver, S; Scherliess, L; Reich, J; Published by: Published on: |
Ionosphere-thermosphere perturbations due to lower atmospheric waves Schunk, Robert; Gardner, Larry; Scherliess, Ludger; Thompson, Donald; Sojka, Jan; Published by: Published on: |
Wave Coupling Between the Lower and Upper Atmospheres Schunk, RW; Gardner, LC; Scherliess, L; Thompson, DC; Sojka, JJ; Siskind, DE; Eckermann, SD; Drob, DP; Hoppel, K; Published by: Published on: |
2007 |
Incorporation of UV Radiances into the USU GAIM Models Published by: Published on: |
A Thermosphere-Ionosphere Data Assimilation Model Component for a Seamless Ocean-Atmosphere Model Schunk, Robert; Scherliess, L; Thompson, DC; Sojka, JJ; Zhu, L; Published by: Published on: |
1998 |
Published by: Published on: |
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