Preprints
https://doi.org/10.5194/gi-2024-4
https://doi.org/10.5194/gi-2024-4
20 Aug 2024
 | 20 Aug 2024
Status: a revised version of this preprint was accepted for the journal GI and is expected to appear here in due course.

Distance of flight of cosmic-ray muons to study dynamics of the upper muosphere

Hiroyuki Tanaka

Abstract. The Earth can be divided by main layers, including the atmosphere, geosphere (solid Earth), and biosphere, depending on its predominant component. In this work, the layer of the Earth which constantly contains a high concentration of muons (~8 × 1012 muons) and its upper border are respectively defined as the muosphere and muopause. The altitude of the muosphere spans from the lower stratosphere to the upper crust of the Earth. In order to study its dynamics, the muopause height was spatiotemporally studied with a new kind of technique called the distance of flight (DoF) which utilizes variations in the muon’s decay length. In this work, (A) numerical modeling was performed, and it was clarified that seasonal variations in the cosmic muon flux are predominantly ruled by muopause dynamics, (B) the muon data were compared with the balloon-based measurement results, and it was confirmed that muopause dynamics is closely related with lower-stratospheric height variations. Since the muopause is the region spanning between the upper troposphere and the lower stratosphere, the potential of the current DoF approach needs to be further investigated by cross-comparing related case studies and other atmospheric climate datasets.

Publisher's note: Copernicus Publications remains neutral with regard to jurisdictional claims made in the text, published maps, institutional affiliations, or any other geographical representation in this preprint. The responsibility to include appropriate place names lies with the authors.
Hiroyuki Tanaka

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on gi-2024-4', Anonymous Referee #1, 09 Sep 2024
  • RC2: 'Comment on gi-2024-4', Anonymous Referee #2, 11 Sep 2024
  • RC3: 'Comment on gi-2024-4', Anonymous Referee #3, 13 Sep 2024
  • CC1: 'Comment on gi-2024-4', Pasquale Noli, 19 Sep 2024
  • CC2: 'RC on gi-2024-4', Pasquale Noli, 19 Sep 2024
  • AC1: 'Comment on gi-2024-4', Hiroyuki Tanaka, 10 Oct 2024

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on gi-2024-4', Anonymous Referee #1, 09 Sep 2024
  • RC2: 'Comment on gi-2024-4', Anonymous Referee #2, 11 Sep 2024
  • RC3: 'Comment on gi-2024-4', Anonymous Referee #3, 13 Sep 2024
  • CC1: 'Comment on gi-2024-4', Pasquale Noli, 19 Sep 2024
  • CC2: 'RC on gi-2024-4', Pasquale Noli, 19 Sep 2024
  • AC1: 'Comment on gi-2024-4', Hiroyuki Tanaka, 10 Oct 2024
Hiroyuki Tanaka
Hiroyuki Tanaka

Viewed

Total article views: 417 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
275 62 80 417 8 7
  • HTML: 275
  • PDF: 62
  • XML: 80
  • Total: 417
  • BibTeX: 8
  • EndNote: 7
Views and downloads (calculated since 20 Aug 2024)
Cumulative views and downloads (calculated since 20 Aug 2024)

Viewed (geographical distribution)

Total article views: 389 (including HTML, PDF, and XML) Thereof 389 with geography defined and 0 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Latest update: 08 Dec 2024
Download
Short summary
A new ground-based technique called "Distance of flight of cosmic-ray muons" for sensing the height of the layer of the Earth where cosmic-ray muons are generated called muopause which is closely related with the height of tropopause and lower stratosphere.