N-Alkanes in fresh snow in Hokkaido, Japan: Implications for ice core studies

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N-Alkanes in fresh snow in Hokkaido, Japan : Implications for ice core studies. / Sankelo, Paula; Kawamura, Kimitaka; Seki, Osamu; Shibata, Hideaki; Bendle, James.

In: Arctic, Antarctic, and Alpine Research, Vol. 45, No. 1, 01.02.2013, p. 119-131.

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Sankelo, Paula ; Kawamura, Kimitaka ; Seki, Osamu ; Shibata, Hideaki ; Bendle, James. / N-Alkanes in fresh snow in Hokkaido, Japan : Implications for ice core studies. In: Arctic, Antarctic, and Alpine Research. 2013 ; Vol. 45, No. 1. pp. 119-131.

Bibtex

@article{1d9e348136e743f98ed8a8592a1fde37,
title = "N-Alkanes in fresh snow in Hokkaido, Japan: Implications for ice core studies",
abstract = "Plant waxes (e.g. long-chain n-alkanes) in ice cores are a promising paleovegetation proxy. However, much work needs to be done to assess how n-alkanes are transported from source areas to, and incorporated into, glacial archives. In this paper we present analyses of n-alkanes in seasonal snow and assess the information on source vegetation. n-Alkanes with carbon numbers C18 to C43 were extracted from snow samples collected at two sites in Hokkaido, northern Japan, during winter 2009-2010. Molecular distributions revealed that the majority of the n-alkanes originated from higher vegetation (ca. 65%), rather than anthropogenic sources. The distribution characteristics confirmed that the n-alkane signal had a wide regional origin, rather than a local source. We determined stable carbon and hydrogen isotopic compositions for the C27n-alkane. The δ13C of the C27 (- 28.2 to - 33.0‰) was more representative of C 3 than C4 vegetation, while the δD of the C 27 (- 169.9 to - 223.1%‰) indicated growth latitudes more northerly than Hokkaido. The n-alkanes in the snow preserve information about the source vegetation type (photosynthetic group, growth site), confirming that if deposited with seasonal snows that firnify to form glacial ice, they have potential to record broad, regional vegetation changes over time.",
author = "Paula Sankelo and Kimitaka Kawamura and Osamu Seki and Hideaki Shibata and James Bendle",
year = "2013",
month = feb,
day = "1",
doi = "10.1657/1938-4246-45.1.119",
language = "English",
volume = "45",
pages = "119--131",
journal = "Arctic, Antarctic, and Alpine Research",
issn = "1523-0430",
publisher = "University of Colorado at Boulder, Institute of Arctic and Alpine Research",
number = "1",

}

RIS

TY - JOUR

T1 - N-Alkanes in fresh snow in Hokkaido, Japan

T2 - Implications for ice core studies

AU - Sankelo, Paula

AU - Kawamura, Kimitaka

AU - Seki, Osamu

AU - Shibata, Hideaki

AU - Bendle, James

PY - 2013/2/1

Y1 - 2013/2/1

N2 - Plant waxes (e.g. long-chain n-alkanes) in ice cores are a promising paleovegetation proxy. However, much work needs to be done to assess how n-alkanes are transported from source areas to, and incorporated into, glacial archives. In this paper we present analyses of n-alkanes in seasonal snow and assess the information on source vegetation. n-Alkanes with carbon numbers C18 to C43 were extracted from snow samples collected at two sites in Hokkaido, northern Japan, during winter 2009-2010. Molecular distributions revealed that the majority of the n-alkanes originated from higher vegetation (ca. 65%), rather than anthropogenic sources. The distribution characteristics confirmed that the n-alkane signal had a wide regional origin, rather than a local source. We determined stable carbon and hydrogen isotopic compositions for the C27n-alkane. The δ13C of the C27 (- 28.2 to - 33.0‰) was more representative of C 3 than C4 vegetation, while the δD of the C 27 (- 169.9 to - 223.1%‰) indicated growth latitudes more northerly than Hokkaido. The n-alkanes in the snow preserve information about the source vegetation type (photosynthetic group, growth site), confirming that if deposited with seasonal snows that firnify to form glacial ice, they have potential to record broad, regional vegetation changes over time.

AB - Plant waxes (e.g. long-chain n-alkanes) in ice cores are a promising paleovegetation proxy. However, much work needs to be done to assess how n-alkanes are transported from source areas to, and incorporated into, glacial archives. In this paper we present analyses of n-alkanes in seasonal snow and assess the information on source vegetation. n-Alkanes with carbon numbers C18 to C43 were extracted from snow samples collected at two sites in Hokkaido, northern Japan, during winter 2009-2010. Molecular distributions revealed that the majority of the n-alkanes originated from higher vegetation (ca. 65%), rather than anthropogenic sources. The distribution characteristics confirmed that the n-alkane signal had a wide regional origin, rather than a local source. We determined stable carbon and hydrogen isotopic compositions for the C27n-alkane. The δ13C of the C27 (- 28.2 to - 33.0‰) was more representative of C 3 than C4 vegetation, while the δD of the C 27 (- 169.9 to - 223.1%‰) indicated growth latitudes more northerly than Hokkaido. The n-alkanes in the snow preserve information about the source vegetation type (photosynthetic group, growth site), confirming that if deposited with seasonal snows that firnify to form glacial ice, they have potential to record broad, regional vegetation changes over time.

UR - http://www.scopus.com/inward/record.url?scp=84878163525&partnerID=8YFLogxK

U2 - 10.1657/1938-4246-45.1.119

DO - 10.1657/1938-4246-45.1.119

M3 - Article

AN - SCOPUS:84878163525

VL - 45

SP - 119

EP - 131

JO - Arctic, Antarctic, and Alpine Research

JF - Arctic, Antarctic, and Alpine Research

SN - 1523-0430

IS - 1

ER -