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Accession Number:
AD1018647
Title:
Real-time Analysis of Global Waves Accompanying Coronal Mass Ejections
Report Date:
2016-09-01
Abstract:
Moreton-Ramsey waves are thin, bright wave-like features seen in H-alpha observations of the solar chromosphere. They are strongly associated with coronal mass ejections (CMEs) and can cover a significant portion of the Sun in under an hour. However, their origin and relationship to CMEs remains a mystery due to the manual techniques typically employed to identify and analyse them. Here we present the final report of a project developing an automated algorithm to identify, track and analyse Moreton-Ramsey waves. The Moreton Pulse Identification and TrackingAlgorithm (MorePITA) uses a similar approach to the Coronal Pulse Identification and Tracking Algorithm (CorPITA), but is optimised to use H-alpha observations from the ISOON telescope. We describe the operation of MorePITA and its adaptation to work with other H-alpha instruments, potentiallyallowing full 24 hour coverage of the solar chromosphere. MorePITA was used to search for co-existing Moreton-Ramsey waves, EIT waves and CMEs although no Moreton-Ramsey waves were identified during events with observed "EIT waves". We conclude that this is due to insufficient downward pressure from the propagating EIT wave on the solar atmosphere.
Document Type:
Conference:
Journal:
Pages:
21
File Size:
4.52MB
FA9550-14-1-0213
(FA95501410213);
Contracts:
Grants:
Distribution Statement:
Approved For Public Release
