Incoherent Scatter Radar Observations of Ionospheric Climatology, Variability, and Trends

Details Incoherent Scatter Radar Observations of Ionospheric Climatology, Variability, and Trends Incoherent Scatter Radar Observations of Ionospheric Climatology, Variability, and Trends

May 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agusmsa34a..04h&link_type=abstract

American Geophysical Union, Fall Meeting 2007, abstract #SA34A-04

Physics

0355 Thermosphere: Composition And Chemistry, 1630 Impacts Of Global Change (1225), 2427 Ionosphere/Atmosphere Interactions (0335), 2443 Midlatitude Ionosphere, 2447 Modeling And Forecasting

Scientific paper

A large volume of incoherent scatter radar (ISR) data is available for seven sites around the world (www.openmadrigal.org), making it feasible to establish specification of the upper atmospheric climatology, variability (including solar cycle variability), and even long-term trends of variations. Over the last few years, empirical models describing the ionospheric climatology based on these datasets have been created for those geophysically distinct sites as local models and regional models (A Western Europe Model as well as An Eastern America Model). Our ongoing efforts focus on the variability, or the off-median behavior, which is a significant and important characteristic of the ionosphere arizing presumedly from the coupling with lower atmosphere processes in addition to magnetic activity. We are also examing trends of the upper atmospheric thermal status as revealed by the Millstone Hill ISR data. Preliminary results for ion temperature indicate a very defined cooling trend occurring above 250 km. In this presentation we will review all these efforts.

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