Bibliography



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Found 5 entries in the Bibliography.


Showing entries from 1 through 5


2019

Critical issues in ionospheric data quality and implications for scientific studies

Araujo-Pradere, E; Weatherhead, EC; Dandenault, PB; Bilitza, D; Wilkinson, P; Coker, C; Akmaev, R; Beig, G; a, Bure\^sov\; Paxton, LJ; , others;

Published by: Radio Science      Published on:

YEAR: 2019     DOI:

2013

Ground-based GPS observation of SED-associated irregularities over CONUS

\ It has been known that steep total electron content (TEC) gradients observed at the boundary between the storm-enhanced plasma density (SED) and the low TEC region at subauroral and midlatitude regions are associated with ionospheric irregularities that impact communication and navigation systems. However, the relationship between the SED-associated irregularities and TEC gradients is still not well understood, partly because of the difficulties of resolving small-scale TEC gradients from sparsely distributed TEC observations. In this study, we examine the relationship between the SED-associated irregularities and TEC gradients during the intense geomagnetic storms of 31 March 2001 and 30 October 2003. To explore this relationship, TEC maps over the continental United States (CONUS) were constructed from ground-based GPS TEC observations, using Kalman filter update formulae with a recently developed nonstationary wavelet-based covariance model that enables resolution of TEC structures on both large and finer scales. Our results show that intense TEC gradients and ion drifts are thought to be required conditions for the formation of irregularities on the northeast side of the SED. Additionally, our methodology identified the narrow east-west stretch of TEC enhancement within the midlatitude low TEC region on 30 October 2003, and this TEC enhancement is most likely to be caused by auroral precipitation.

Sun, Yang-Yi; Matsuo, Tomoko; Araujo-Pradere, Eduardo; Liu, Jann-Yenq;

Published by: Journal of Geophysical Research: Space Physics      Published on: 05/2013

YEAR: 2013     DOI: 10.1029/2012JA018103

data assimilation; irregularity; nonstationary covariance; SED; TEC gradient

2011

A study of the strong linear relationship between the equatorial ionization anomaly and the prereversal E \texttimes B drift velocity at solar minimum

McDonald, Sarah; Coker, Clayton; Dymond, Kenneth; Anderson, David; Araujo-Pradere, Eduardo;

Published by: Radio Science      Published on: Jan-12-2011

YEAR: 2011     DOI: 10.1029/2011RS004702

A study of the strong linear relationship between the equatorial ionization anomaly and the prereversal EXB drift velocity at solar minimum

It is known that there exists a linear relationship between the maximum velocity of the prereversal enhancement (PRE) of the EXB drift and the strength of the equatorial ionization

McDonald, Sarah; Coker, Clayton; Dymond, Kenneth; Anderson, David; Araujo-Pradere, Eduardo;

Published by: Radio Science      Published on:

YEAR: 2011     DOI: 10.1029/2011RS004702

2006

PHYSICAL INTERPRETATION OF THE THERMOSPHERE-IONOSPHERE RESPONSE TO THE APRIL 2002 MAGNETIC STORM

Fedrizzi, M; Fuller-Rowell, TJ; Codrescu, M; Araujo-Pradere, EA; Minter, CF; Khalsa, H; Maruyama, N; Anderson, D; Anghel, A;

Published by:       Published on:

YEAR: 2006     DOI:



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