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Found 2 entries in the Bibliography.
Showing entries from 1 through 2
2015 |
A data assimilation algorithm is used to delineate the time-dependent three-dimensional ionospheric response to the 2009 sudden stratospheric warming (SSW) event. We use the Ionospheric Data Assimilation Four-Dimensional (IDA4D) algorithm to study the global ionospheric response to the 2009 SSW. This is the first study to utilize global ionospheric measurements in a data assimilation framework to unambiguously characterize atmosphere-ionosphere coupling via tidal modifications during the 2009 SSW event. Model results reve ... Azeem, I.; Crowley, G.; Honniball, C.; Published by: Journal of Geophysical Research: Space Physics Published on: 05/2015 YEAR: 2015   DOI: 10.1002/2015JA020993 atmospheric tides; Data Assimilation; ionosphere/atmosphere interactions; sudden stratospheric warming |
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 assimil ... Gardner, L.; Schunk, R.; Scherliess, L.; Sojka, J.; Zhu, L.; Published by: Space Weather Published on: 11/2014 YEAR: 2014   DOI: 10.1002/2014SW001104 |
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