Challenges in Polar Aeronomy

Details Challenges in Polar Aeronomy Challenges in Polar Aeronomy

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agufmsa41c..06t&link_type=abstract

American Geophysical Union, Fall Meeting 2001, abstract #SA41C-06

Physics

2407 Auroral Ionosphere (2704), 2427 Ionosphere/Atmosphere Interactions (0335), 2431 Ionosphere/Magnetosphere Interactions (2736)

Scientific paper

Within the polar regions, the upper atmosphere continues to elude comprehensive description by our physical models, by our array of existing instruments, and by our understanding of its physics and chemistry. A fundamental source of this difficulty is a need in polar aeronomy to properly separate spatial structures from temporal variability. Significant progress in this field in the near future will depend on our ability to do so. We are, therefore, challenged to: ” create novel instrumentation capable of making accurate, comprehensive measurements of both neutral and plasma parameters with shorter integration times and higher spatial resolution on a global scale; ” extend our physical models to smaller scale sizes and reduce our dependency on parameterizations; ” understand not only the physical and chemical processes on a range of scales inherent to the upper atmosphere, but also the source regions from above and below that transfer significant amounts of energy into the upper atmosphere on varying spatial and temporal scales; and ” understand how the condition of the upper atmosphere may act to modify these sources of energy. In this presentation, current issues in polar aeronomy, from polar mesospheric clouds to polar electrodynamics with influential energy sources from the stratosphere to the magnetosphere, will be presented. These issues will highlight the need for advancements in understanding the spatial - temporal behavior of the polar upper atmosphere and demonstrate the resource enhancements needed to tackle these challenging problems.

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