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Performance of the IRI-2007 Model for Topside Ion Density and Composition Profiles During the 23/24 Solar MinimumThe recent solar minimum between cycles 23 and 24 was unusually extended and deep, resulting in an ionosphere that is significantly different from that expected based on previous solar minima. The ion density and composition estimates from the Communication/Navigation Outage Forecast System (C/NOFS) satellite are used to evaluate the performance of the IRI-2007 model between 400 and 850 kIn altitude in equatorial regions. The current model is shown to typically overestimate the expected topside density of 0+ and underestimate the density of H+ during 2008 and 2009. The overestimation of ion density by IRI-2007 is found to vary with local time and longitude.
Document ID
20120002037
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Klenzing, J. H. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Simoes, F. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Ivanov, S. (Georgia Inst. of Tech. Atlanta, GA, United States)
Pfaff, R. F. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Rowland, D. E. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Bilitza, D. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Heelis, R. A. (Texas Univ. at Dallas Richardson, TX, United States)
Date Acquired
August 25, 2013
Publication Date
October 15, 2011
Subject Category
Geophysics
Report/Patent Number
GSFC.ABS.5739.2011
Distribution Limits
Public
Copyright
Public Use Permitted.

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