The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Latitudinal and temporal variation of equatorial ionospheric irregularities determined from GPS scintillation observations
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Abstract. In this paper we investigate the spatial and temporal distribution of ionospheric irregularities in the South-East Asian longitude sector by analysing the scintillation of GPS signals received at ground based stations. The data used for this work were collected during 1998 to 2002 with our regional network of GPS based scintillation monitors (Thomas et al., 2001). The aim of this analysis is to better understand the morphology and climatology of ionospheric irregularities in our region. Interesting differences between the north and south anomalies are noted when we examine the latitudinal–temporal variation of irregularity activity. We investigate the possible causes of these differences and note that variations in the irregularity seeding mechanism and in the background ionosphere at the two anomalies could be important. Phase screen diffraction theory is used to analyse our scintillation data and we note problems with this theory for ray-paths with large off-zenith angles. The height of the phase screen is another important issue. We discuss the implications for models which rely on phase screen diffraction theory.
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More than 98% of scintillation at Jicamarca and Ascension Island was observed from 1 to 6 h after sunset.
“Statistics show that more than 98% of the scintillation at Jicamarca and Ascension Island was observed from 1 to 6 h after sunset, which is consistent with previous findings”
From Comparison of the effect of high‐latitude and equatorial ionospheric scintillation on GPS signals during the maximum of solar cycle 24 (2015) · cites this paper as Cervera and Thomas, 2006
Section 5 (Results; page not available in our copy) reports irregularity activity beginning about 1.5–2 hours after sunset and ending about 5.5–7 hours afterward, broadly supporting the post-sunset timing. The station description identifies Chiang-Rai, Pare Pare and Marak Parak as the study sites; the paper does not report observations at Jicamarca or Ascension Island or the claimed figure of more than 98%. (LLM, conf=0.84)
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Tsunoda, R. T. (1985) · Journal of Geophysical Research: Space Physics · doi:10.1029/ja090ia01p00447 · Cited by 522
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Jiao, Y., & Morton, Y. T. (2015) · Radio Science · doi:10.1002/2015rs005719 · Cited by 166
Metadata
- Authors
- Cervera, M. A., & Thomas, R. M.
- Affiliations
- Defence Science and Technology Group (AU)
- Laboratoire de Biologie Tissulaire et d'Ingénierie Thérapeutique (FR)
- ORCID
- Cervera, M. A.
- Venue
- Annales Geophysicae
- Publisher
- Copernicus GmbH
- Published
- 2006-12-21
- Volume
- 24
- Issue
- 12
- Pages
- 3329-3341
- ISSN
- 0992-7689 (ISSN-L)
- 1432-0576
- OpenAlex
- W2097301234
- Cited by
- 56
- References
- 1
- Citations by year
- 2024: 2 · 2023: 4 · 2022: 2 · 2021: 5 · 2020: 10 · 2019: 4 · 2018: 5 · 2017: 3 · 2016: 3 · 2015: 3 · 2014: 2 · 2013: 5 · 2012: 3
- FWCI
- 0.96
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Annales Geophysicae (publishedVersion, cc-by)
- HAL (submittedVersion, other-oa)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Funders
- National Aeronautics and Space Administration
- Langley Research Center
- Air Force Research Laboratory
- U.S. Army Medical Research and Development Command
- Topics
- Physical Sciences › Earth and Planetary Sciences › Space and Planetary Science › Ionosphere and magnetosphere dynamics
- Physical Sciences › Engineering › Aerospace Engineering › GNSS positioning and interference
- Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Lightning and Electromagnetic Phenomena
- Keywords
- ionospheric irregularities, GPS scintillation, equatorial ionosphere, latitudinal variation, temporal variation, north-south asymmetry, Southeast Asia
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