Analysis of Joule heating parameterizations

Details Analysis of Joule heating parameterizations Analysis of Joule heating parameterizations

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agufmsa21a0420m&link_type=abstract

American Geophysical Union, Fall Meeting 2002, abstract #SA21A-0420

Statistics

0358 Thermosphere: Energy Deposition, 0394 Instruments And Techniques, 2162 Solar Cycle Variations (7536), 2407 Auroral Ionosphere (2704), 2447 Modeling And Forecasting

Scientific paper

Determination of a simple parameterization for Joule heating in the ionosphere is important in both data assimilation and large scale ionospheric satellite drag models. Recently parameterizations using either a combination of Polar Cap Index (PCI) and the Disturbance Storm Time Index (Dst) or solar wind inputs have been proposed for both the hemispheric and spatially dependent Joule heating. We develop statistics of the residuals from the PC/Dst and solar wind proxy driven parameterizations compared to AMIE derived heating results over a 55 day period. These results are then compared to Joule heating parameterizations developed using the ap index, which is currently used in NASA satellite drag models. We also include examples of Joule heating parameterizations driven with the aa and AE indices. This analysis will allow us to compare the relative utility and ease of implementation of different Joule heating proxies.

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