Accession Number:

AD1046154

Title:

Multi-Instrument Investigation of Ionospheric Flow Channels and Their Impact on the Ionosphere and Thermosphere during Geomagnetic Storms

Descriptive Note:

[Technical Report, Final Report]

Corporate Author:

THE UNIVERSITY OF QUEENSLAND

Personal Author(s):

• Horvath, Ildiko

Report Date:

2017-12-29

Pagination or Media Count:

13

Abstract:

During this 12-month project, we conducted detailed investigations on various processes occurring in the coupled system of Solar Wind, Magnetosphere, Ionosphere, and Thermosphere during geomagnetic stormssubstorms. These efforts are documented in a series of journal articles Horvath and Lovell, 2017A 2017B 2017C 2017D. Our findings contribute to the better understanding of some of the underlying physical processes. This improved understanding fills some existing gaps in the community knowledgebase, adds directly to the MURI-IT project and the ongoing sub-auroral and polar investigations carried out at AFRL, and thus provides advancement in the field of space science. Augmenting our data processing and computational capabilities, we developed two software packages to process GRACEGravity Recovery and Climate Experiment and GOCE Gravity field and steady-state Ocean Circulation Explorer satellite data. We also created a series of computer algorithms to compute the numerical values of i Poynting flux S mVm2 by utilizing DMSP data and iifield-aligned current FAC density J Am2 by employing solar wind and interplanetary magnetic field IMF data. We investigated a number of geomagnetic storms and some magnetically active and quiet periods.

Descriptors:

Subject Categories:

• Geomagnetism

Distribution Statement:

[A, Approved For Public Release]