GSTDTAP  > 气候变化
DOI10.1029/2019GL084249
Organic Compounds in a Sub-Antarctic Ice Core: A Potential Suite of Sea Ice Markers
King, A. C. F.1,2; Thomas, E. R.1; Pedro, J. B.3,4; Markle, B.5; Potocki, M.6,7; Jackson, S. L.1,8; Wolff, E.9; Kalberer, M.2,10
2019-08-28
发表期刊GEOPHYSICAL RESEARCH LETTERS
ISSN0094-8276
EISSN1944-8007
出版年2019
卷号46期号:16页码:9930-9939
文章类型Article
语种英语
国家England; Australia; Denmark; USA; Switzerland
英文摘要

Investigation of organic compounds in ice cores can potentially unlock a wealth of new information in these climate archives. We present results from the first ever ice core drilled on sub-Antarctic island Bouvet, representing a climatologically important but understudied region. We analyze a suite of novel and more familiar organic compounds in the ice core, alongside commonly measured ions. Methanesulfonic acid shows a significant, positive correlation to winter sea ice concentration, as does a fatty acid compound, oleic acid. Both may be sourced from spring phytoplankton blooms, which are larger following greater sea ice extent in the preceding winter. Oxalate, formate, and acetate are positively correlated to sea ice concentration in summer, but sources of these require further investigation. This study demonstrates the potential application of organic compounds from the marine biosphere in generating multiproxy sea ice records, which is critical in improving our understanding of past sea ice changes.


Plain Language Summary Ice cores are vertical cylinders of ice drilled from an ice sheet, younger at the top and older at the bottom. Particles emitted from plants and animals on land and in the ocean, containing organic chemical compounds, are carried by atmospheric circulation, deposited on the ice surface, and become trapped inside ice layers. They are a record of environmental conditions at the location and time the particles originally formed. Here, we look for a number of these organic compounds in an ice core from Bouvet Island in the sub-Antarctic. We find the amounts of some are related to amounts of sea ice around the island in the spring. This is because the particles are originally emitted by phytoplankton, for which the amount of sea ice that year controls the amount of phytoplankton (more sea ice in the winter = greater area of sea ice break up in spring = more phytoplankton in spring). We find other organic compounds are related to amounts of sea ice in summer, but their sources are less well known. Combining these records with their relationships to sea ice will be useful in helping us to better understand sea ice changes in the past.


领域气候变化
收录类别SCI-E
WOS记录号WOS:000490966700068
WOS关键词FATTY-ACIDS ; METHANESULFONIC-ACID ; DICARBOXYLIC-ACIDS ; CLIMATE-CHANGE ; AEROSOL ; DICARBONYLS ; BIOMARKERS ; RECORD ; ALASKA ; OCEAN
WOS类目Geosciences, Multidisciplinary
WOS研究方向Geology
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/186278
专题气候变化
作者单位1.British Antarcnc Survey, Cambridge, England;
2.Univ Cambridge, Dept Chem, Cambridge, England;
3.Univ Tasmania, Antarctic Climate & Ecosyst, Hobart, Tas, Australia;
4.Univ Copenhagen, Niels Bohr Inst, Phys Ice Climate & Earth, Copenhagen, Denmark;
5.CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA;
6.Univ Maine, Climate Change Inst, Orono, ME USA;
7.Univ Maine, Sch Earth & Climate Sci, Orono, ME USA;
8.Australian Natl Univ, Res Sch Earth Sci, Canberra, ACT, Australia;
9.Univ Cambridge, Dept Earth Sci, Cambridge, England;
10.Univ Base, Dept Environm Sci, Basel, Switzerland
推荐引用方式
GB/T 7714
King, A. C. F.,Thomas, E. R.,Pedro, J. B.,et al. Organic Compounds in a Sub-Antarctic Ice Core: A Potential Suite of Sea Ice Markers[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(16):9930-9939.
APA King, A. C. F..,Thomas, E. R..,Pedro, J. B..,Markle, B..,Potocki, M..,...&Kalberer, M..(2019).Organic Compounds in a Sub-Antarctic Ice Core: A Potential Suite of Sea Ice Markers.GEOPHYSICAL RESEARCH LETTERS,46(16),9930-9939.
MLA King, A. C. F.,et al."Organic Compounds in a Sub-Antarctic Ice Core: A Potential Suite of Sea Ice Markers".GEOPHYSICAL RESEARCH LETTERS 46.16(2019):9930-9939.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[King, A. C. F.]的文章
[Thomas, E. R.]的文章
[Pedro, J. B.]的文章
百度学术
百度学术中相似的文章
[King, A. C. F.]的文章
[Thomas, E. R.]的文章
[Pedro, J. B.]的文章
必应学术
必应学术中相似的文章
[King, A. C. F.]的文章
[Thomas, E. R.]的文章
[Pedro, J. B.]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。