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Turbulence and intermittency in the heliospheric magnetic field in fast and slow solar wind
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Zeitschriftentitel: | Journal of Geophysical Research: Space Physics |
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Personen und Körperschaften: | , , , |
In: | Journal of Geophysical Research: Space Physics, 114, 2009, A8 |
Format: | E-Article |
Sprache: | Englisch |
veröffentlicht: |
American Geophysical Union (AGU)
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Schlagwörter: |
author_facet |
Yordanova, E. Balogh, A. Noullez, A. von Steiger, R. Yordanova, E. Balogh, A. Noullez, A. von Steiger, R. |
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author |
Yordanova, E. Balogh, A. Noullez, A. von Steiger, R. |
spellingShingle |
Yordanova, E. Balogh, A. Noullez, A. von Steiger, R. Journal of Geophysical Research: Space Physics Turbulence and intermittency in the heliospheric magnetic field in fast and slow solar wind Paleontology Space and Planetary Science Earth and Planetary Sciences (miscellaneous) Atmospheric Science Earth-Surface Processes Geochemistry and Petrology Soil Science Water Science and Technology Ecology Aquatic Science Forestry Oceanography Geophysics |
author_sort |
yordanova, e. |
spelling |
Yordanova, E. Balogh, A. Noullez, A. von Steiger, R. 0148-0227 American Geophysical Union (AGU) Paleontology Space and Planetary Science Earth and Planetary Sciences (miscellaneous) Atmospheric Science Earth-Surface Processes Geochemistry and Petrology Soil Science Water Science and Technology Ecology Aquatic Science Forestry Oceanography Geophysics http://dx.doi.org/10.1029/2009ja014067 <jats:p>We study the nonuniform solar wind turbulence using high‐resolution Ulysses magnetic field data measured at different solar activity level, heliospheric latitudes, and distance. We define several types of solar wind dependent of the coronal region of origin and also of the dynamical behavior of the different streams, namely, “pure” fast wind, fast streams, “pure” slow wind, and slow streams. The turbulent properties of the solar wind types were investigated in terms of their scaling properties and spatial inhomogeneity. A clear trend in the power spectrum of the solar wind magnetic field magnitude is observed: the “pure” fast wind has a slope ∼−1.33 (1/<jats:italic>f</jats:italic>‐like), the fast streams ∼−1.48 (Kraichnan‐like), the “pure” slow wind ∼−1.67 (Kolmogorov‐like), and the slow streams ∼−1.72. We find that the “pure” fast wind in the polar heliolatitudes is less intermittent than the other types: “pure” slow wind and both slow and fast streams, which is because of the absence of dynamical interactions between streams with different speeds. On the other hand, fast streams are more intermittent than the “pure” fast wind, and slow streams are less intermittent than the “pure” slow winds. A clear radial and latitudinal evolution of the intermittency is observed only for the “pure” fast wind, while in the equatorial plane, the fast streams, the “pure” slow wind, and the slow streams do not show evolution either in heliolatitude or in heliocentric distance.</jats:p> Turbulence and intermittency in the heliospheric magnetic field in fast and slow solar wind Journal of Geophysical Research: Space Physics |
doi_str_mv |
10.1029/2009ja014067 |
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Online Free |
finc_class_facet |
Geographie Chemie und Pharmazie Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft Biologie Allgemeine Naturwissenschaft Physik Technik Geologie und Paläontologie |
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American Geophysical Union (AGU), 2009 |
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American Geophysical Union (AGU), 2009 |
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2009 |
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American Geophysical Union (AGU) |
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Journal of Geophysical Research: Space Physics |
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49 |
title |
Turbulence and intermittency in the heliospheric magnetic field in fast and slow solar wind |
title_unstemmed |
Turbulence and intermittency in the heliospheric magnetic field in fast and slow solar wind |
title_full |
Turbulence and intermittency in the heliospheric magnetic field in fast and slow solar wind |
title_fullStr |
Turbulence and intermittency in the heliospheric magnetic field in fast and slow solar wind |
title_full_unstemmed |
Turbulence and intermittency in the heliospheric magnetic field in fast and slow solar wind |
title_short |
Turbulence and intermittency in the heliospheric magnetic field in fast and slow solar wind |
title_sort |
turbulence and intermittency in the heliospheric magnetic field in fast and slow solar wind |
topic |
Paleontology Space and Planetary Science Earth and Planetary Sciences (miscellaneous) Atmospheric Science Earth-Surface Processes Geochemistry and Petrology Soil Science Water Science and Technology Ecology Aquatic Science Forestry Oceanography Geophysics |
url |
http://dx.doi.org/10.1029/2009ja014067 |
publishDate |
2009 |
physical |
|
description |
<jats:p>We study the nonuniform solar wind turbulence using high‐resolution Ulysses magnetic field data measured at different solar activity level, heliospheric latitudes, and distance. We define several types of solar wind dependent of the coronal region of origin and also of the dynamical behavior of the different streams, namely, “pure” fast wind, fast streams, “pure” slow wind, and slow streams. The turbulent properties of the solar wind types were investigated in terms of their scaling properties and spatial inhomogeneity. A clear trend in the power spectrum of the solar wind magnetic field magnitude is observed: the “pure” fast wind has a slope ∼−1.33 (1/<jats:italic>f</jats:italic>‐like), the fast streams ∼−1.48 (Kraichnan‐like), the “pure” slow wind ∼−1.67 (Kolmogorov‐like), and the slow streams ∼−1.72. We find that the “pure” fast wind in the polar heliolatitudes is less intermittent than the other types: “pure” slow wind and both slow and fast streams, which is because of the absence of dynamical interactions between streams with different speeds. On the other hand, fast streams are more intermittent than the “pure” fast wind, and slow streams are less intermittent than the “pure” slow winds. A clear radial and latitudinal evolution of the intermittency is observed only for the “pure” fast wind, while in the equatorial plane, the fast streams, the “pure” slow wind, and the slow streams do not show evolution either in heliolatitude or in heliocentric distance.</jats:p> |
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author | Yordanova, E., Balogh, A., Noullez, A., von Steiger, R. |
author_facet | Yordanova, E., Balogh, A., Noullez, A., von Steiger, R., Yordanova, E., Balogh, A., Noullez, A., von Steiger, R. |
author_sort | yordanova, e. |
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description | <jats:p>We study the nonuniform solar wind turbulence using high‐resolution Ulysses magnetic field data measured at different solar activity level, heliospheric latitudes, and distance. We define several types of solar wind dependent of the coronal region of origin and also of the dynamical behavior of the different streams, namely, “pure” fast wind, fast streams, “pure” slow wind, and slow streams. The turbulent properties of the solar wind types were investigated in terms of their scaling properties and spatial inhomogeneity. A clear trend in the power spectrum of the solar wind magnetic field magnitude is observed: the “pure” fast wind has a slope ∼−1.33 (1/<jats:italic>f</jats:italic>‐like), the fast streams ∼−1.48 (Kraichnan‐like), the “pure” slow wind ∼−1.67 (Kolmogorov‐like), and the slow streams ∼−1.72. We find that the “pure” fast wind in the polar heliolatitudes is less intermittent than the other types: “pure” slow wind and both slow and fast streams, which is because of the absence of dynamical interactions between streams with different speeds. On the other hand, fast streams are more intermittent than the “pure” fast wind, and slow streams are less intermittent than the “pure” slow winds. A clear radial and latitudinal evolution of the intermittency is observed only for the “pure” fast wind, while in the equatorial plane, the fast streams, the “pure” slow wind, and the slow streams do not show evolution either in heliolatitude or in heliocentric distance.</jats:p> |
doi_str_mv | 10.1029/2009ja014067 |
facet_avail | Online, Free |
finc_class_facet | Geographie, Chemie und Pharmazie, Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft, Biologie, Allgemeine Naturwissenschaft, Physik, Technik, Geologie und Paläontologie |
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imprint | American Geophysical Union (AGU), 2009 |
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institution | DE-D275, DE-Bn3, DE-Brt1, DE-Zwi2, DE-D161, DE-Gla1, DE-Zi4, DE-15, DE-Pl11, DE-Rs1, DE-105, DE-14, DE-Ch1, DE-L229 |
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physical | |
publishDate | 2009 |
publishDateSort | 2009 |
publisher | American Geophysical Union (AGU) |
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recordtype | ai |
series | Journal of Geophysical Research: Space Physics |
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spelling | Yordanova, E. Balogh, A. Noullez, A. von Steiger, R. 0148-0227 American Geophysical Union (AGU) Paleontology Space and Planetary Science Earth and Planetary Sciences (miscellaneous) Atmospheric Science Earth-Surface Processes Geochemistry and Petrology Soil Science Water Science and Technology Ecology Aquatic Science Forestry Oceanography Geophysics http://dx.doi.org/10.1029/2009ja014067 <jats:p>We study the nonuniform solar wind turbulence using high‐resolution Ulysses magnetic field data measured at different solar activity level, heliospheric latitudes, and distance. We define several types of solar wind dependent of the coronal region of origin and also of the dynamical behavior of the different streams, namely, “pure” fast wind, fast streams, “pure” slow wind, and slow streams. The turbulent properties of the solar wind types were investigated in terms of their scaling properties and spatial inhomogeneity. A clear trend in the power spectrum of the solar wind magnetic field magnitude is observed: the “pure” fast wind has a slope ∼−1.33 (1/<jats:italic>f</jats:italic>‐like), the fast streams ∼−1.48 (Kraichnan‐like), the “pure” slow wind ∼−1.67 (Kolmogorov‐like), and the slow streams ∼−1.72. We find that the “pure” fast wind in the polar heliolatitudes is less intermittent than the other types: “pure” slow wind and both slow and fast streams, which is because of the absence of dynamical interactions between streams with different speeds. On the other hand, fast streams are more intermittent than the “pure” fast wind, and slow streams are less intermittent than the “pure” slow winds. A clear radial and latitudinal evolution of the intermittency is observed only for the “pure” fast wind, while in the equatorial plane, the fast streams, the “pure” slow wind, and the slow streams do not show evolution either in heliolatitude or in heliocentric distance.</jats:p> Turbulence and intermittency in the heliospheric magnetic field in fast and slow solar wind Journal of Geophysical Research: Space Physics |
spellingShingle | Yordanova, E., Balogh, A., Noullez, A., von Steiger, R., Journal of Geophysical Research: Space Physics, Turbulence and intermittency in the heliospheric magnetic field in fast and slow solar wind, Paleontology, Space and Planetary Science, Earth and Planetary Sciences (miscellaneous), Atmospheric Science, Earth-Surface Processes, Geochemistry and Petrology, Soil Science, Water Science and Technology, Ecology, Aquatic Science, Forestry, Oceanography, Geophysics |
title | Turbulence and intermittency in the heliospheric magnetic field in fast and slow solar wind |
title_full | Turbulence and intermittency in the heliospheric magnetic field in fast and slow solar wind |
title_fullStr | Turbulence and intermittency in the heliospheric magnetic field in fast and slow solar wind |
title_full_unstemmed | Turbulence and intermittency in the heliospheric magnetic field in fast and slow solar wind |
title_short | Turbulence and intermittency in the heliospheric magnetic field in fast and slow solar wind |
title_sort | turbulence and intermittency in the heliospheric magnetic field in fast and slow solar wind |
title_unstemmed | Turbulence and intermittency in the heliospheric magnetic field in fast and slow solar wind |
topic | Paleontology, Space and Planetary Science, Earth and Planetary Sciences (miscellaneous), Atmospheric Science, Earth-Surface Processes, Geochemistry and Petrology, Soil Science, Water Science and Technology, Ecology, Aquatic Science, Forestry, Oceanography, Geophysics |
url | http://dx.doi.org/10.1029/2009ja014067 |