Sign on

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· Electronic Refereed Journal Article (HTML)
· Full Refereed Journal Article (PDF/Postscript)
· References in the article
· Citations to the Article (1) (Citation History)
· Refereed Citations to the Article
· Also-Read Articles (Reads History)
·
· Translate This Page
Title:
On the short-term relationship between solar soft X-ray irradiances and equatorial total electron content (TEC)
Authors:
Wang, X.; Eastes, R.; Weichecki Vergara, S.; Bailey, S.; Valladares, C.; Woods, T.
Affiliation:
AA(Department of Electrical and Computer Engineering, University of Central Florida, Orlando, Florida, USA); AB(Florida Space Institute, Kennedy Space Center, Florida, USA); AC(Department of Electrical and Computer Engineering, University of Central Florida, Orlando, Florida, USA); AD(Geophysical Institute, University of Alaska Fairbanks, Fairbanks, Alaska, USA); AE(Newton Resource Center, Institute for Scientific Research, Boston College, Massachusetts, USA); AF(Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, Colorado, USA)
Publication:
Journal of Geophysical Research, Volume 111, Issue A10, CiteID A10S15 (JGRA Homepage)
Publication Date:
10/2006
Origin:
AGU
AGU Keywords:
Ionosphere: Equatorial ionosphere, Solar Physics, Astrophysics, and Astronomy: Solar irradiance, Atmospheric Composition and Structure: Thermosphere: composition and chemistry, Ionosphere: Solar radiation and cosmic ray effects
DOI:
10.1029/2005JA011488
Bibliographic Code:
2006JGRA..11110S15W

Abstract

The relationship between total electron content (TEC) and the solar soft X-ray irradiances is presented. Three bands (2-7 nm, 6-19 nm, and 17-20 nm) of solar soft X-ray measurements from the Student Nitric Oxide Explorer (SNOE) satellite are examined and all show a similar relationship with TEC. The TEC data are from a GPS receiver near Ancon, Peru (-11.78 degrees latitude, -77.15 degrees longitude) from 11 March 1998 to 23 August 1999 and 2 October 1999 to 10 June 2000. During these periods the average TEC measurement was calculated from all observations whose ionospheric pierce point occurred within -12 +/- 2 degrees latitude and -77 +/- 2 degrees longitude and within the hour selected. TEC shows a more significant correlation with soft X-ray irradiances than with F10.7. The X rays lead the TEC by approximately 0.8-1.3 days, which is consistent with the neutral density affecting the TEC. The magnitude of these short term (27 days or less) changes is approximately 0.18 of the total TEC. During the period examined geomagnetic activity, as represented by Ap, could account for half as much variation in TEC (0.1 of the total TEC) as the solar irradiance.
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)
   

Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints