Sporadic auroras near the geomagnetic equator: in the Philippines, on 27 October 1856

Hayakawa, Hisashi; Vaquero, José M.; Ebihara, Yusuke

doi:https://doi.org/10.5194/angeo-36-1153-2018

Articles | Volume 36, issue 4

https://doi.org/10.5194/angeo-36-1153-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/angeo-36-1153-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 36, issue 4

Regular paper

| Highlight paper

|

29 Aug 2018

Regular paper | Highlight paper |

| 29 Aug 2018

Sporadic auroras near the geomagnetic equator: in the Philippines, on 27 October 1856

Hisashi Hayakawa, José M. Vaquero, and Yusuke Ebihara

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Final revised paper (published on 29 Aug 2018)
Preprint (discussion started on 11 Jun 2018)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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RC1: 'An interesting observation', Tiera Laitinen, 17 Jul 2018
- AC1: 'Interactive response to the referee #1 comment on “Sporadic Aurora near Geomagnetic Equator: In the Philippines, on 27 October 1856”', Hisashi Hayakawa, 24 Jul 2018
RC2: 'Interesting result on sporadic aurora', Anonymous Referee #2, 14 Aug 2018
- AC2: 'Interactive response to the referee comment 2 on “Sporadic Aurora near Geomagnetic Equator: In the Philippines, on 27 October 1856” by Hisashi Hayakawa et al.', Hisashi Hayakawa, 14 Aug 2018
AC3: 'Revision', Hisashi Hayakawa, 17 Aug 2018

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

ED: Publish as is (18 Aug 2018) by Ana G. Elias

AR by Hisashi Hayakawa on behalf of the Authors (18 Aug 2018) Manuscript

Short summary

A record has been found of an "aurora" observed on 27 October 1856 in the Philippines, practically at the magnetic equator. An analysis of this report indicates that it could belong to a "sporadic aurora" because of low magnetic activity at that time. We provide a possible physical mechanism that could explain the appearance of this sporadic, low-latitude aurora, according to the analyses on the observational report and magnetic observations at that time.