The parameterization of wave-particle interactions in the Outer Radiation Belt

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Watt, C. E. J., Rae, I. J., Murphy, K. R., Anekallu, C., Bentley, S. N. and Forsyth, C. (2017) The parameterization of wave-particle interactions in the Outer Radiation Belt. Journal of Geophysical Research: Space Physics, 122 (9). pp. 9545-9551. ISSN 2169-9402 doi: 10.1002/2017JA024339

Abstract/Summary

We explore the use of mean-value empirical wave models in diffusion models of the Outer Radiation Belt. We show that magnetospheric wave power is not normally-distributed in time and that geomagnetic activity does not provide a deterministic proxy for the temporal variability of wave activity. Our findings indicate that current diffusion models significantly overestimate the action of wave particle interactions due to extremely low frequency and very low frequency waves in the magnetosphere. We suggest that other techniques such as stochastic parameterization will lead to a better characterization of sub-grid diffusion physics in the Outer Radiation Belt.

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Item Type	Article
URI	https://reading-clone.eprints-hosting.org/id/eprint/72584
Identification Number/DOI	10.1002/2017JA024339
Refereed	Yes
Divisions	Science > School of Mathematical, Physical and Computational Sciences > Department of Meteorology
Publisher	American Geophysical Union
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Funders:	Science and Technology Facilities Council	The sponsoring bodies who contributed funding for the creation of this item. Example: NERC Example: The Royal Society of Chemistry A pick list of funders may appear as you type in the funder's name in full or as an acronym. Select a correct match to complete the field or type in a new entry in full. For new entries, the full name is preferred.
Projects:	Reading solar system science Funded by: Science and Technology Facilities Council (ST/M000885/1 - £599,663) Local Lead (PI): Clare Watt Project Lead: Clare Emily Jane Watt 1 April 2015 - 31 March 2018	Click Add to select your project (received at Reading) from an autocomplete list.

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Date Deposited:	03 Oct 2017 11:37	Date item deposited into CentAUR
Last Modified:	23 Jun 2024 04:17	Date item last modified

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