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A new method for detecting solar atmospheric gravity waves.

Daniele Calchetti1, Stuart M Jefferies2,3, Bernhard Fleck4

  • 1Department of Physics, University of Rome Tor Vergata, 00133, Italy.

Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
|December 21, 2020
PubMed
Summary
This summary is machine-generated.

Scientists developed a new method to study solar gravity waves using 3D cross-correlation of vertical velocities. This research enhances understanding of wave propagation and their role in the Sun's atmospheric dynamics.

Keywords:
chromospheregravity wavesoscillationsphotospheresolar atmosphere

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Area of Science:

  • Solar Physics
  • Atmospheric Dynamics
  • Wave Phenomena

Background:

  • Internal gravity waves are observed across various celestial bodies, including Earth's atmosphere and oceans, Mars, Jupiter, and the Sun's atmosphere.
  • While their existence in the solar atmosphere is confirmed, a comprehensive understanding of their characteristics and impact on solar atmospheric dynamics and energetics is lacking.

Purpose of the Study:

  • To introduce a novel method for analyzing the propagation of gravity waves in the solar atmosphere.
  • To improve the characterization of gravity waves and their role in solar atmospheric processes.

Main Methods:

  • A new approach based on calculating the three-dimensional cross-correlation function of vertical velocities at different heights.
  • Application of the method to observational data from SOHO/MDI and Hinode/SOT, as well as to simulated gravity wave packets.

Main Results:

  • Preliminary results demonstrate the feasibility of the new cross-correlation technique for studying gravity wave propagation.
  • The method allows for the analysis of wave characteristics in the solar atmosphere.

Conclusions:

  • The developed method offers a promising tool for advancing the study of solar gravity waves.
  • Future work will focus on refining the technique and further exploring its applications in solar physics.