Ice core records of levoglucosan and dehydroabietic and vanillic acids from Aurora Peak in Alaska since the 1660s: a proxy signal of biomass-burning activities in the North Pacific Rim

Pokhrel, Ambarish; Kawamura, Kimitaka; Kunwar, Bhagawati; Ono, Kaori; Tsushima, Akane; Seki, Osamu; Matoba, Sumio; Shiraiwa, Takayuki

doi:https://doi.org/10.5194/acp-20-597-2020

Articles | Volume 20, issue 1

https://doi.org/10.5194/acp-20-597-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-20-597-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 1

Research article

|

17 Jan 2020

Research article |

| 17 Jan 2020

Ice core records of levoglucosan and dehydroabietic and vanillic acids from Aurora Peak in Alaska since the 1660s: a proxy signal of biomass-burning activities in the North Pacific Rim

Ambarish Pokhrel, Kimitaka Kawamura, Bhagawati Kunwar, Kaori Ono, Akane Tsushima, Osamu Seki, Sumio Matoba, and Takayuki Shiraiwa

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Final revised paper (published on 17 Jan 2020)
Preprint (discussion started on 06 Mar 2019)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Review of: “Ice core records of biomass burning tracers (levoglucosan, dehydroabietic and vanillic acids) from Aurora Peak in Alaska since 1660s: A new dimension of forest fire activities in the Northern Hemisphere”', Anonymous Referee #1, 27 Mar 2019
- AC1: 'Response to Reviewer 1', Ambarish Pokhrel, 12 Sep 2019
RC2: 'review of paper from Ambarish Pokhrel  and co-workers', Anonymous Referee #2, 10 Apr 2019
- AC2: 'Response to Reviewer 2', Ambarish Pokhrel, 12 Sep 2019
RC3: 'Referee Comment', Anonymous Referee #3, 10 Apr 2019
- AC3: 'Response to Reviewer 3', Ambarish Pokhrel, 12 Sep 2019

Peer-review completion

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

AR by Ambarish Pokhrel on behalf of the Authors (13 Sep 2019) Manuscript

ED: Publish as is (16 Oct 2019) by Carlo Barbante

AR by Ambarish Pokhrel on behalf of the Authors (23 Oct 2019) Author's response Manuscript

Short summary

A 180 m long (ca. 274 year) ice core was drilled in the saddle of the Aurora Peak in Alaska (63.52° N, 146.54° W; elevation: 2,825 m). The ice core samples were derived with O-bis-(trimethylsilyl)trifluoroacetamide with 1 % trimethylsilyl chloride and pyridine followed by gas-chromatography–mass-spectrometry analyses. Levoglucosan, dehydroabietic acid and vanillic acid are reported for the first time from the alpine glacier to better understand historical biomass burning.