Comparison of FORMOSAT-3/COSMIC radio occultation measurements with radio tomography

Smitha V. Thampi, Mamoru Yamamoto, Charles Lin, Huixin Liu

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The paper reports a comparison between the continuous tomographic observations of the ionosphere during July-August 2008 and radio occultation (RO) measurements made by the Formosa Satellite 3/Constellation Observing System for Meteorology, Ionosphere, and Climate (FORMOSAT-3/COSMIC or F3/C). The two sets of observations agree well qualitatively and bring out the main features of the low-latitude to midlatitude ionosphere: (1) The electron density enhancements observed at ∼26°N-31°N geographic (∼16°N- 21°N magnetic) latitudes during daytime are related to the equatorial ionization anomaly (EIA), and (2) the enhancements observed at night at latitudes poleward of ∼35°N geographic are related to the midlatitude summer nighttime anomaly. The comparison shows that the EIA crest densities are highly underestimated in the RO inversions that use F3/C data. It is also seen that the agreement is better in the midlatitude region, with overall features represented quite well in the RO data, highlighting its usefulness as the two techniques capture similar electron density structure, although there are some magnitude differences.

Original languageEnglish
Article numberRS3001
JournalRadio Science
Volume46
Issue number3
DOIs
Publication statusPublished - Jun 10 2011

Fingerprint

COSMIC
radio occultation
Ionosphere
temperate regions
ionospheres
tomography
Tomography
radio
anomalies
anomaly
electron density
Ionization
Carrier concentration
ionosphere
ionization
Meteorology
augmentation
constellations
daytime
meteorology

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Earth and Planetary Sciences(all)
  • Electrical and Electronic Engineering

Cite this

Comparison of FORMOSAT-3/COSMIC radio occultation measurements with radio tomography. / Thampi, Smitha V.; Yamamoto, Mamoru; Lin, Charles; Liu, Huixin.

In: Radio Science, Vol. 46, No. 3, RS3001, 10.06.2011.

Research output: Contribution to journalArticle

Thampi, Smitha V. ; Yamamoto, Mamoru ; Lin, Charles ; Liu, Huixin. / Comparison of FORMOSAT-3/COSMIC radio occultation measurements with radio tomography. In: Radio Science. 2011 ; Vol. 46, No. 3.
@article{a5f73eda870e4f36add7be6d27101946,
title = "Comparison of FORMOSAT-3/COSMIC radio occultation measurements with radio tomography",
abstract = "The paper reports a comparison between the continuous tomographic observations of the ionosphere during July-August 2008 and radio occultation (RO) measurements made by the Formosa Satellite 3/Constellation Observing System for Meteorology, Ionosphere, and Climate (FORMOSAT-3/COSMIC or F3/C). The two sets of observations agree well qualitatively and bring out the main features of the low-latitude to midlatitude ionosphere: (1) The electron density enhancements observed at ∼26°N-31°N geographic (∼16°N- 21°N magnetic) latitudes during daytime are related to the equatorial ionization anomaly (EIA), and (2) the enhancements observed at night at latitudes poleward of ∼35°N geographic are related to the midlatitude summer nighttime anomaly. The comparison shows that the EIA crest densities are highly underestimated in the RO inversions that use F3/C data. It is also seen that the agreement is better in the midlatitude region, with overall features represented quite well in the RO data, highlighting its usefulness as the two techniques capture similar electron density structure, although there are some magnitude differences.",
author = "Thampi, {Smitha V.} and Mamoru Yamamoto and Charles Lin and Huixin Liu",
year = "2011",
month = "6",
day = "10",
doi = "10.1029/2010RS004431",
language = "English",
volume = "46",
journal = "Radio Science",
issn = "0048-6604",
publisher = "American Geophysical Union",
number = "3",

}

TY - JOUR

T1 - Comparison of FORMOSAT-3/COSMIC radio occultation measurements with radio tomography

AU - Thampi, Smitha V.

AU - Yamamoto, Mamoru

AU - Lin, Charles

AU - Liu, Huixin

PY - 2011/6/10

Y1 - 2011/6/10

N2 - The paper reports a comparison between the continuous tomographic observations of the ionosphere during July-August 2008 and radio occultation (RO) measurements made by the Formosa Satellite 3/Constellation Observing System for Meteorology, Ionosphere, and Climate (FORMOSAT-3/COSMIC or F3/C). The two sets of observations agree well qualitatively and bring out the main features of the low-latitude to midlatitude ionosphere: (1) The electron density enhancements observed at ∼26°N-31°N geographic (∼16°N- 21°N magnetic) latitudes during daytime are related to the equatorial ionization anomaly (EIA), and (2) the enhancements observed at night at latitudes poleward of ∼35°N geographic are related to the midlatitude summer nighttime anomaly. The comparison shows that the EIA crest densities are highly underestimated in the RO inversions that use F3/C data. It is also seen that the agreement is better in the midlatitude region, with overall features represented quite well in the RO data, highlighting its usefulness as the two techniques capture similar electron density structure, although there are some magnitude differences.

AB - The paper reports a comparison between the continuous tomographic observations of the ionosphere during July-August 2008 and radio occultation (RO) measurements made by the Formosa Satellite 3/Constellation Observing System for Meteorology, Ionosphere, and Climate (FORMOSAT-3/COSMIC or F3/C). The two sets of observations agree well qualitatively and bring out the main features of the low-latitude to midlatitude ionosphere: (1) The electron density enhancements observed at ∼26°N-31°N geographic (∼16°N- 21°N magnetic) latitudes during daytime are related to the equatorial ionization anomaly (EIA), and (2) the enhancements observed at night at latitudes poleward of ∼35°N geographic are related to the midlatitude summer nighttime anomaly. The comparison shows that the EIA crest densities are highly underestimated in the RO inversions that use F3/C data. It is also seen that the agreement is better in the midlatitude region, with overall features represented quite well in the RO data, highlighting its usefulness as the two techniques capture similar electron density structure, although there are some magnitude differences.

UR - http://www.scopus.com/inward/record.url?scp=79958025517&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79958025517&partnerID=8YFLogxK

U2 - 10.1029/2010RS004431

DO - 10.1029/2010RS004431

M3 - Article

AN - SCOPUS:79958025517

VL - 46

JO - Radio Science

JF - Radio Science

SN - 0048-6604

IS - 3

M1 - RS3001

ER -