Behaviour of HILAT scintillation over spitsbergen

M. Gola; A. W. Wernik; S. J. Franke; C. H. Liu; K. C. Yeh

doi:10.1016/0021-9169(92)90146-C

Behaviour of HILAT scintillation over spitsbergen

M. Gola, A. W. Wernik, S. J. Franke, C. H. Liu, K. C. Yeh

Research output: Contribution to journal › Article › peer-review

Abstract

Results of the amplitude scintillation morphology of the HILAT satellite 137 MHz beacon transmission as measured at the Polish Polar Station at Hornsund, Spitsbergen (Δ = 73.4°) are presented. Seasonal, diurnal and latitudinal dependencies of scintillation intensity on magnetic activity were analyzed from over 2250 satellite passes recorded at solar minimum between April 1985 and March 1986. Regions with strong scintillation intensity appear to follow the auroral oval expansion and to move sunward with increasing level of magnetic activity. Maximum amplitude scintillation region coincides with the dayside cusp/cleft position during high magnetic activity. The dawn-dusk asymmetry in scintillation intensity is more distinct in winter than other months. The estimated summer/winter ratio of scintillation intensity is 1.4: 1. Numerical simulations compared with the observational results indicate that high latitude irregularities < 1 km are field-aligned and rod-like rather than sheet-like.

Original language	English (US)
Pages (from-to)	1207-1213
Number of pages	7
Journal	Journal of Atmospheric and Terrestrial Physics
Volume	54
Issue number	9
DOIs	https://doi.org/10.1016/0021-9169(92)90146-C
State	Published - Sep 1992
Externally published	Yes

ASJC Scopus subject areas

General Environmental Science
Geophysics
General Engineering
Atmospheric Science
General Earth and Planetary Sciences

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10.1016/0021-9169(92)90146-C

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@article{53f1452e879f4c5780fbfb1fef2531a4,

title = "Behaviour of HILAT scintillation over spitsbergen",

abstract = "Results of the amplitude scintillation morphology of the HILAT satellite 137 MHz beacon transmission as measured at the Polish Polar Station at Hornsund, Spitsbergen (Δ = 73.4°) are presented. Seasonal, diurnal and latitudinal dependencies of scintillation intensity on magnetic activity were analyzed from over 2250 satellite passes recorded at solar minimum between April 1985 and March 1986. Regions with strong scintillation intensity appear to follow the auroral oval expansion and to move sunward with increasing level of magnetic activity. Maximum amplitude scintillation region coincides with the dayside cusp/cleft position during high magnetic activity. The dawn-dusk asymmetry in scintillation intensity is more distinct in winter than other months. The estimated summer/winter ratio of scintillation intensity is 1.4: 1. Numerical simulations compared with the observational results indicate that high latitude irregularities < 1 km are field-aligned and rod-like rather than sheet-like.",

author = "M. Gola and Wernik, {A. W.} and Franke, {S. J.} and Liu, {C. H.} and Yeh, {K. C.}",

note = "Funding Information: Acknowledgements-The Polish Polar Station at Spitsbergen is manageda nd operatedb y the Instituteo f Geophysics, Polish Academyo f Sciences. This work has been supported by the Institute of Geophysics, PAS under grant CPBP 03.03. 8.2. The work at the University of Illinois was supported by the National Science Foundation under ATM 8802860. Copyright: Copyright 2014 Elsevier B.V., All rights reserved.",

year = "1992",

month = sep,

doi = "10.1016/0021-9169(92)90146-C",

language = "English (US)",

volume = "54",

pages = "1207--1213",

journal = "Journal of Atmospheric and Terrestrial Physics",

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T1 - Behaviour of HILAT scintillation over spitsbergen

AU - Gola, M.

AU - Wernik, A. W.

AU - Franke, S. J.

AU - Liu, C. H.

AU - Yeh, K. C.

N1 - Funding Information: Acknowledgements-The Polish Polar Station at Spitsbergen is manageda nd operatedb y the Instituteo f Geophysics, Polish Academyo f Sciences. This work has been supported by the Institute of Geophysics, PAS under grant CPBP 03.03. 8.2. The work at the University of Illinois was supported by the National Science Foundation under ATM 8802860. Copyright: Copyright 2014 Elsevier B.V., All rights reserved.

PY - 1992/9

Y1 - 1992/9

N2 - Results of the amplitude scintillation morphology of the HILAT satellite 137 MHz beacon transmission as measured at the Polish Polar Station at Hornsund, Spitsbergen (Δ = 73.4°) are presented. Seasonal, diurnal and latitudinal dependencies of scintillation intensity on magnetic activity were analyzed from over 2250 satellite passes recorded at solar minimum between April 1985 and March 1986. Regions with strong scintillation intensity appear to follow the auroral oval expansion and to move sunward with increasing level of magnetic activity. Maximum amplitude scintillation region coincides with the dayside cusp/cleft position during high magnetic activity. The dawn-dusk asymmetry in scintillation intensity is more distinct in winter than other months. The estimated summer/winter ratio of scintillation intensity is 1.4: 1. Numerical simulations compared with the observational results indicate that high latitude irregularities < 1 km are field-aligned and rod-like rather than sheet-like.

AB - Results of the amplitude scintillation morphology of the HILAT satellite 137 MHz beacon transmission as measured at the Polish Polar Station at Hornsund, Spitsbergen (Δ = 73.4°) are presented. Seasonal, diurnal and latitudinal dependencies of scintillation intensity on magnetic activity were analyzed from over 2250 satellite passes recorded at solar minimum between April 1985 and March 1986. Regions with strong scintillation intensity appear to follow the auroral oval expansion and to move sunward with increasing level of magnetic activity. Maximum amplitude scintillation region coincides with the dayside cusp/cleft position during high magnetic activity. The dawn-dusk asymmetry in scintillation intensity is more distinct in winter than other months. The estimated summer/winter ratio of scintillation intensity is 1.4: 1. Numerical simulations compared with the observational results indicate that high latitude irregularities < 1 km are field-aligned and rod-like rather than sheet-like.

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Behaviour of HILAT scintillation over spitsbergen

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