Building a regional tomographic model for the inospheric changes over Korea based on GPS measurements

Jihyun Ha; Kwan Dong Park; Yun Soo Choi

doi:10.1109/IGARSS.2005.1526716

Building a regional tomographic model for the inospheric changes over Korea based on GPS measurements

Jihyun Ha, Kwan Dong Park, Yun Soo Choi

Department of Geoinformatics

Kookmin University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

We present a GPS-based regional ionosphere tomography model, which estimates Total Electron Content (TEC) in several layers over Korea. The GPS data from all available Korea GPS stations were used. The two-dimensional ionosphere model was grid-based, and the three-dimensional ionosphere model used a tomography technique. The pseudorange data were phase-leveled by a linear combination of pseudoranges and carrier phases. The solar-geomagnetic coordinate system, which is less variable to the ionosphere movement due to the Sun and geomagnetic field than an Earth-fixed frame, was used. During a quiet day of solar activity, the regional ionosphere map indicated 30-45 Total Electron Content Unit (TECU) at the peak of the diurnal variation. In comparison with the Global Ionosphere Map of the Center for Orbit Determination (CODE) in Europe, RMS differences of two-dimensional grid-based model were at the level of 3-5 TECU.

Original language	English
Title of host publication	25th Anniversary IGARSS 2005
Subtitle of host publication	IEEE International Geoscience and Remote Sensing Symposium
Pages	4685-4688
Number of pages	4
DOIs	https://doi.org/10.1109/IGARSS.2005.1526716
State	Published - 2005
Event	2005 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2005 - Seoul, Korea, Republic of Duration: 25 Jul 2005 → 29 Jul 2005

Publication series

Name	International Geoscience and Remote Sensing Symposium (IGARSS)
Volume	7

Conference

Conference	2005 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2005
Country/Territory	Korea, Republic of
City	Seoul
Period	25/07/05 → 29/07/05

Keywords

Component
GPS
Ionosphere
TEC
Tomography

Access to Document

10.1109/IGARSS.2005.1526716

Cite this

Ha, J., Park, K. D., & Choi, Y. S. (2005). Building a regional tomographic model for the inospheric changes over Korea based on GPS measurements. In 25th Anniversary IGARSS 2005: IEEE International Geoscience and Remote Sensing Symposium (pp. 4685-4688). Article 1526716 (International Geoscience and Remote Sensing Symposium (IGARSS); Vol. 7). https://doi.org/10.1109/IGARSS.2005.1526716

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title = "Building a regional tomographic model for the inospheric changes over Korea based on GPS measurements",

abstract = "We present a GPS-based regional ionosphere tomography model, which estimates Total Electron Content (TEC) in several layers over Korea. The GPS data from all available Korea GPS stations were used. The two-dimensional ionosphere model was grid-based, and the three-dimensional ionosphere model used a tomography technique. The pseudorange data were phase-leveled by a linear combination of pseudoranges and carrier phases. The solar-geomagnetic coordinate system, which is less variable to the ionosphere movement due to the Sun and geomagnetic field than an Earth-fixed frame, was used. During a quiet day of solar activity, the regional ionosphere map indicated 30-45 Total Electron Content Unit (TECU) at the peak of the diurnal variation. In comparison with the Global Ionosphere Map of the Center for Orbit Determination (CODE) in Europe, RMS differences of two-dimensional grid-based model were at the level of 3-5 TECU.",

keywords = "Component, GPS, Ionosphere, TEC, Tomography",

author = "Jihyun Ha and Park, {Kwan Dong} and Choi, {Yun Soo}",

year = "2005",

doi = "10.1109/IGARSS.2005.1526716",

language = "English",

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series = "International Geoscience and Remote Sensing Symposium (IGARSS)",

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booktitle = "25th Anniversary IGARSS 2005",

note = "2005 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2005 ; Conference date: 25-07-2005 Through 29-07-2005",

}

Ha, J, Park, KD & Choi, YS 2005, Building a regional tomographic model for the inospheric changes over Korea based on GPS measurements. in 25th Anniversary IGARSS 2005: IEEE International Geoscience and Remote Sensing Symposium., 1526716, International Geoscience and Remote Sensing Symposium (IGARSS), vol. 7, pp. 4685-4688, 2005 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2005, Seoul, Korea, Republic of, 25/07/05. https://doi.org/10.1109/IGARSS.2005.1526716

Building a regional tomographic model for the inospheric changes over Korea based on GPS measurements. / Ha, Jihyun; Park, Kwan Dong; Choi, Yun Soo.
25th Anniversary IGARSS 2005: IEEE International Geoscience and Remote Sensing Symposium. 2005. p. 4685-4688 1526716 (International Geoscience and Remote Sensing Symposium (IGARSS); Vol. 7).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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Building a regional tomographic model for the inospheric changes over Korea based on GPS measurements

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Keywords

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