Nonlinear Processes in Geophysics
Nonlinear Processes in Geophysics
NPG
Articles | Volume 33, issue 4
Articles | Volume 33, issue 4
https://doi.org/10.5194/npg-33-521-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/npg-33-521-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 33, issue 4
Research article
 | 
20 Oct 2026
Research article |  | 20 Oct 2026

A physically grounded input distance resolves longitude-encoding ambiguity but not specification dependence in ensemble persistent homology of cyclone trajectories

Rongzhen Dai

Viewed

Total article views: 230 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
136 67 27 230 26 21 18
  • HTML: 136
  • PDF: 67
  • XML: 27
  • Total: 230
  • Supplement: 26
  • BibTeX: 21
  • EndNote: 18
Views and downloads (calculated since 23 Jun 2026)
Cumulative views and downloads (calculated since 23 Jun 2026)

Viewed (geographical distribution)

Total article views: 230 (including HTML, PDF, and XML) Thereof 206 with geography defined and 24 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Latest update: 20 Oct 2026
Download
Short summary
Tests that summarise the shape of a cloud of storm positions can give different answers depending on choices the analyst makes but rarely reports. Using three benchmark geomagnetic storms, we show that measuring distance along the Earth surface removes one such choice, and we measure how much the answer still moves with the others. Averaging over those choices rather than selecting one, we report a directional residual: neither a detection nor evidence that no effect is there.
Read more
Share