In Situ Measurements of Small-Scale Structures in Neutrals and Charged Aerosols

Abstract. In this paper we present an overview of measurements conducted during the WADIS-2 rocket campaign. We investigate the effect of small-scale processes like gravity waves and turbulence on the distribution of atomic oxygen and other species in the MLT region. Our analysis suggests that density fluctuations of atomic oxygen are coupled to fluctuations of other constituents, i.e., plasma and neutrals. Our measurements show that all measured quantities, including winds, densities, and temperatures, reveal signatures of both waves and turbulence. We show observations of gravity wave saturation and breakdown together with simultaneous measurements of generated turbulence. Atomic oxygen inside turbulence layers shows two different spectral behaviors, which might imply change of its diffusion properties.

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Simultaneous in situ measurements of small-scale structures in neutral, plasma, and atomic oxygen densities during the WADIS sounding rocket project

Atmospheric Chemistry and Physics ◽

10.5194/acp-19-11443-2019 ◽

2019 ◽

Vol 19 (17) ◽

pp. 11443-11460 ◽

Cited By ~ 5

Author(s):

Boris Strelnikov ◽

Martin Eberhart ◽

Martin Friedrich ◽

Jonas Hedin ◽

Mikhail Khaplanov ◽

...

Keyword(s):

Atomic Oxygen ◽

Lower Thermosphere ◽

Density Fluctuations ◽

Sounding Rocket ◽

Small Scale ◽

Scale Structures ◽

Small Scale Structures ◽

Mlt Region ◽

Diffusion Properties

Abstract. In this paper we present an overview of measurements conducted during the WADIS-2 rocket campaign. We investigate the effect of small-scale processes like gravity waves and turbulence on the distribution of atomic oxygen and other species in the mesosphere–lower thermosphere (MLT) region. Our analysis suggests that density fluctuations of atomic oxygen are coupled to fluctuations of other constituents, i.e., plasma and neutrals. Our measurements show that all measured quantities, including winds, densities, and temperatures, reveal signatures of both waves and turbulence. We show observations of gravity wave saturation and breakdown together with simultaneous measurements of generated turbulence. Atomic oxygen inside turbulence layers shows two different spectral behaviors, which might imply a change in its diffusion properties.

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Exploring Coronal Structures with SOHO

International Astronomical Union Colloquium ◽

10.1017/s0252921100064915 ◽

2000 ◽

Vol 179 ◽

pp. 403-406

Author(s):

M. Karovska ◽

B. Wood ◽

J. Chen ◽

J. Cook ◽

R. Howard

Keyword(s):

Solar Corona ◽

Image Enhancement ◽

Coronal Mass Ejections ◽

Dynamical Evolution ◽

Small Scale ◽

Low Contrast ◽

Contrast Structures ◽

Scale Structures ◽

Small Scale Structures ◽

Coronal Structures

AbstractWe applied advanced image enhancement techniques to explore in detail the characteristics of the small-scale structures and/or the low contrast structures in several Coronal Mass Ejections (CMEs) observed by SOHO. We highlight here the results from our studies of the morphology and dynamical evolution of CME structures in the solar corona using two instruments on board SOHO: LASCO and EIT.

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SEMI-AUTOMATED APPROACH TO MAPPING SMALL SCALE STRUCTURES FOR OIL AND GAS EXPLORATION ALONG THE SOUTHERN CINCINNATI ARCH USING PYTHON AND GIS APPLICATIONS

10.1130/abs/2019se-327847 ◽

2019 ◽

Author(s):

Kenneth S. Boling ◽

◽

Robert D. Hatcher ◽

Peter J. Lemiszki ◽

Gary G. Bible

Keyword(s):

Oil And Gas ◽

Small Scale ◽

Oil And Gas Exploration ◽

Gis Applications ◽

Scale Structures ◽

Small Scale Structures

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Observational aspects of prominence oscillations

Proceedings of the International Astronomical Union ◽

10.1017/s1743921308014816 ◽

2007 ◽

Vol 3 (S247) ◽

pp. 152-157 ◽

Cited By ~ 4

Author(s):

Oddbjørn Engvold

Keyword(s):

Magnetic Structure ◽

Numerical Models ◽

Small Scale ◽

Solar Prominences ◽

Scale Structures ◽

Oscillations And Waves ◽

Available Information ◽

Small Scale Structures

AbstractSeismology has become a powerful tool in studies of the magnetic structure of solar prominences and filaments. Reversely, analytical and numerical models are guided by available information about the spatial and thermodynamical structure of these enigmatic structures. The present invited paper reviews recent observational results on oscillations and waves as well as details about small-scale structures and dynamics of prominences and filaments.

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