EGU25-7810, updated on 14 Mar 2025
https://doi.org/10.5194/egusphere-egu25-7810
EGU General Assembly 2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Poster | Thursday, 01 May, 16:15–18:00 (CEST), Display time Thursday, 01 May, 14:00–18:00
 
Hall X4, X4.148
Comparing Automated Coronal Hole Detection Schemes with Coronal Magnetic Field Modeling
Karin Muglach1, Reiss Martin2, Satabdwa Majumdar3, and The S2-01 ISWAT Team
Karin Muglach et al.
  • 1NASA/GSFC, CUA, United States of America
  • 2Community Coordinated Modelling Center, NASA Goddard Space Flight Center, Greenbelt, USA
  • 3Austrian Space Weather Office, GeoSphere Austria, Graz, Austria

Low latitude coronal holes are known to be the source of fast solar wind streams which
can have a significant effect on geomagnetic activity, especially around solar minimum activity.
A large number of methods have been developed in the last years to automatically detect
coronal holes in solar EUV and X-ray images.

Using a set of 29 solar images we now have a database of coronal hole identifications
from 15 different detection methods (Reiss et al., 2024). In this paper we have
compared these results and evaluated how the properties of coronal holes change
depending on the detection scheme.  
The next step of this investigation is to include magnetic field and solar wind modeling.
In the current contribution we provide a comparison of the observed coronal holes
with coronal holes derived from magnetic field extrapolations.

How to cite: Muglach, K., Martin, R., Majumdar, S., and S2-01 ISWAT Team, T.: Comparing Automated Coronal Hole Detection Schemes with Coronal Magnetic Field Modeling, EGU General Assembly 2025, Vienna, Austria, 27 Apr–2 May 2025, EGU25-7810, https://doi.org/10.5194/egusphere-egu25-7810, 2025.