SA32A:
Equatorial to Midlatitude Ionosphere: Climatology and Variability of Electrodynamics and Irregularities at Different Longitudes I

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Session ID#: 35024

Session Description:
Recent distributed ground and space-based observations show significant longitudinal variability of mid-to-low latitude electrodynamics that directly affects the global density and scintillation forecasting capabilities. This session aims at providing a comprehensive understanding on the characteristics, distribution, and electrodynamics of the mid-to-low latitudes density irregularities and scintillations by synthesizing various ground-based and satellite-borne observations. This session also attempts to address some of the longstanding questions: - what are the controlling factors that cause strong longitudinal dependence of low latitudes electrodynamics? - how low latitude electrodynamics modifies the global electron density structures and irregularities at low and middle latitudes? What is the physical process underlying medium-scale traveling ionospheric disturbances? We welcome papers (both modeling and observation) that describe progress in understanding equatorial and mid-latitude electrodynamics and coupling processes that improve our ability to unravel the variability of mid-to-low latitudes ionosphere with longitude and to forecast global ionospheric irregularities/scintillations and ambient electron density.
Primary Convener:  Endawoke Yizengaw, Boston College, Chestnut Hill, MA, United States
Conveners:  Hyosub Kil, Johns Hopkins University, Baltimore, MD, United States, Larisa P Goncharenko, MIT Haystack Observatory, Westford, United States and Vladimir I Sotnikov, Air Force Research Laboratory, Wright-Patterson AFB, OH, United States
Chairs:  Endawoke Yizengaw, The Aerospace Corporation, Space Science Application Laboratory, El Segundo, United States and Larisa P Goncharenko, MIT Haystack Observatory, Westford, United States
OSPA Liaison:  Endawoke Yizengaw, The Aerospace Corporation, Space Science Application Laboratory, El Segundo, United States

Cross-Listed:
  • SH - SPA-Solar and Heliospheric Physics
  • SM - SPA-Magnetospheric Physics
Index Terms:

2415 Equatorial ionosphere [IONOSPHERE]
2427 Ionosphere/atmosphere interactions [IONOSPHERE]
2736 Magnetosphere/ionosphere interactions [MAGNETOSPHERIC PHYSICS]

Abstracts Submitted to this Session:

Longitudinal Ionospheric Variability Observed by LITES on the ISS (243298)
Andrew W Stephan1, Susanna C Finn2, Tim Cook2, George Geddes3, Supriya Chakrabarti2 and Scott Alan Budzien4, (1)U. S. Naval Research Laboratory, Washington, DC, United States, (2)University of Massachusetts Lowell, Lowell, MA, United States, (3)UMass Lowell Center for Atmospheric Research, Lowell, MA, United States, (4)US Naval Research Laboratory, Washington, DC, United States
Longitudinal Variations in the Variability of Spread F Occurrence (Invited) (300491)
Keith M Groves1, Christopher Bridgwood2 and Charles Salvatore Carrano1, (1)Boston College, Institute for Scientific Research, Chestnut Hill, United States, (2)Boston College/Inst Sci Res, Chestnut Hill, MA, United States
Ionospheric Irregularities Characterization by Ground and Space-based GPS Observations (282011)
Irina Zakharenkova, University of Warmia and Mazury in Olsztyn, Space Radio-Diagnostics Research Centre, Olsztyn, Poland, Iurii Cherniak, University Corporation for Atmospheric Research, COSMIC Program Office, Boulder, United States and Andrzej Krankowski, Space Radio-Diagnostics Research Centre, University of Warmia and Mazury, Olsztyn, Poland
Longitudinal Variations of Low-Latitude Ionospheric Irregularities during the 2015 St. Patrick’s Day Storm (284005)
Xiaoqing Pi, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States and Panagiotis Vergados, NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States
Longitudinal and temporal variability of ionospheric pre-reversal enhancement (208359)
Hanli Liu, National Center for Atmospheric Research, Boulder, CO, United States
Do we understand what creates 150-km echoes and gives them their distinct structure? (285383)
Meers M Oppenheim1, Erhan Kudeki2, Pablo Salas Reyes3 and Yakov S Dimant1, (1)Boston University, Center for Space Physics, Boston, MA, United States, (2)University of Illinois at Urbana Champaign, Electrical and Computer Engineering, Urbana, IL, United States, (3)U. of Illinois, ECE, Urbana-Champaign, IL, United States

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