Continuous flow analysis of the Mount Brown South ice core
The Mount Brown South (MBS) ice core is an approximately 300-meter-long ice core, drilled in 2016-2017 to the south of Mount Brown, Wilhelm II Land, East Antarctica. This location in East Antarctica was chosen as it produces an ice core with well-preserved sub-annual records of both chemistry and is...
Main Authors: | , , , , , , , , , , , |
---|---|
Format: | Conference Object |
Language: | English |
Published: |
.
2021
|
Subjects: | |
Online Access: | https://doi.org/10.5194/egusphere-egu21-15782 http://ecite.utas.edu.au/144073 |
id |
ftunivtasecite:oai:ecite.utas.edu.au:144073 |
---|---|
record_format |
openpolar |
spelling |
ftunivtasecite:oai:ecite.utas.edu.au:144073 2023-05-15T13:59:46+02:00 Continuous flow analysis of the Mount Brown South ice core Harlan, M Kjaer, HA Vance, T Vallelonga, P Gkinis, V Blunier, T Svensson, A Moy, A Plummer, C Jackson, S Peensoo, K de Campo, A 2021 application/pdf https://doi.org/10.5194/egusphere-egu21-15782 http://ecite.utas.edu.au/144073 en eng . http://ecite.utas.edu.au/144073/1/144073 - Continuous flow analysis of the Mount Brown South ice core.pdf http://dx.doi.org/10.5194/egusphere-egu21-15782 Harlan, M and Kjaer, HA and Vance, T and Vallelonga, P and Gkinis, V and Blunier, T and Svensson, A and Moy, A and Plummer, C and Jackson, S and Peensoo, K and de Campo, A, Continuous flow analysis of the Mount Brown South ice core, EGU General Assembly 2021, 19-30 April, online, pp. EGU21-15782. (2021) [Conference Extract] http://ecite.utas.edu.au/144073 Earth Sciences Climate change science Climate change processes Conference Extract NonPeerReviewed 2021 ftunivtasecite https://doi.org/10.5194/egusphere-egu21-15782 2021-04-26T22:16:37Z The Mount Brown South (MBS) ice core is an approximately 300-meter-long ice core, drilled in 2016-2017 to the south of Mount Brown, Wilhelm II Land, East Antarctica. This location in East Antarctica was chosen as it produces an ice core with well-preserved sub-annual records of both chemistry and isotope concentrations, spanning back over 1000 years. MBS is particularly well suited to represent climate variations of the Indian Ocean sector of Antarctica, and to provide information about regional volcanism in the Southern Indian Ocean region. A section of ice spanning the length of the MBS core was melted as part of the autumn 2019 continuous flow analysis (CFA) campaign at the Physics of Ice, Climate, and Earth (PICE) group at the University of Copenhagen. During this campaign, measurements were conducted for chemistry and impurities contained in the ice, in addition to water isotopes. The data measured in Copenhagen include measurements of H 2 O 2, pH, electrolytic conductivity, and NH 4 + , Ca 2+ , and Na + ions, in addition to insoluble particulate concentrations and size distribution measured using an Abakus laser particle counter. Here, we present an overview of the CFA chemistry and impurity data, as well as preliminary investigations into the size distribution of insoluble particles and the presence of volcanic material within the ice. These initial chemistry and particulate size distribution data sets are useful in order to identify sections of the MBS core to subject to further analysis to increase our understanding of volcanic activity in the Southern Indian Ocean region. Conference Object Antarc* Antarctica East Antarctica ice core Wilhelm II Land eCite UTAS (University of Tasmania) East Antarctica Indian South Ice ENVELOPE(-29.867,-29.867,-81.950,-81.950) Wilhelm II Land ENVELOPE(90.000,90.000,-67.000,-67.000) Mount Brown ENVELOPE(86.000,86.000,-68.617,-68.617) |
institution |
Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Earth Sciences Climate change science Climate change processes |
spellingShingle |
Earth Sciences Climate change science Climate change processes Harlan, M Kjaer, HA Vance, T Vallelonga, P Gkinis, V Blunier, T Svensson, A Moy, A Plummer, C Jackson, S Peensoo, K de Campo, A Continuous flow analysis of the Mount Brown South ice core |
topic_facet |
Earth Sciences Climate change science Climate change processes |
description |
The Mount Brown South (MBS) ice core is an approximately 300-meter-long ice core, drilled in 2016-2017 to the south of Mount Brown, Wilhelm II Land, East Antarctica. This location in East Antarctica was chosen as it produces an ice core with well-preserved sub-annual records of both chemistry and isotope concentrations, spanning back over 1000 years. MBS is particularly well suited to represent climate variations of the Indian Ocean sector of Antarctica, and to provide information about regional volcanism in the Southern Indian Ocean region. A section of ice spanning the length of the MBS core was melted as part of the autumn 2019 continuous flow analysis (CFA) campaign at the Physics of Ice, Climate, and Earth (PICE) group at the University of Copenhagen. During this campaign, measurements were conducted for chemistry and impurities contained in the ice, in addition to water isotopes. The data measured in Copenhagen include measurements of H 2 O 2, pH, electrolytic conductivity, and NH 4 + , Ca 2+ , and Na + ions, in addition to insoluble particulate concentrations and size distribution measured using an Abakus laser particle counter. Here, we present an overview of the CFA chemistry and impurity data, as well as preliminary investigations into the size distribution of insoluble particles and the presence of volcanic material within the ice. These initial chemistry and particulate size distribution data sets are useful in order to identify sections of the MBS core to subject to further analysis to increase our understanding of volcanic activity in the Southern Indian Ocean region. |
format |
Conference Object |
author |
Harlan, M Kjaer, HA Vance, T Vallelonga, P Gkinis, V Blunier, T Svensson, A Moy, A Plummer, C Jackson, S Peensoo, K de Campo, A |
author_facet |
Harlan, M Kjaer, HA Vance, T Vallelonga, P Gkinis, V Blunier, T Svensson, A Moy, A Plummer, C Jackson, S Peensoo, K de Campo, A |
author_sort |
Harlan, M |
title |
Continuous flow analysis of the Mount Brown South ice core |
title_short |
Continuous flow analysis of the Mount Brown South ice core |
title_full |
Continuous flow analysis of the Mount Brown South ice core |
title_fullStr |
Continuous flow analysis of the Mount Brown South ice core |
title_full_unstemmed |
Continuous flow analysis of the Mount Brown South ice core |
title_sort |
continuous flow analysis of the mount brown south ice core |
publisher |
. |
publishDate |
2021 |
url |
https://doi.org/10.5194/egusphere-egu21-15782 http://ecite.utas.edu.au/144073 |
long_lat |
ENVELOPE(-29.867,-29.867,-81.950,-81.950) ENVELOPE(90.000,90.000,-67.000,-67.000) ENVELOPE(86.000,86.000,-68.617,-68.617) |
geographic |
East Antarctica Indian South Ice Wilhelm II Land Mount Brown |
geographic_facet |
East Antarctica Indian South Ice Wilhelm II Land Mount Brown |
genre |
Antarc* Antarctica East Antarctica ice core Wilhelm II Land |
genre_facet |
Antarc* Antarctica East Antarctica ice core Wilhelm II Land |
op_relation |
http://ecite.utas.edu.au/144073/1/144073 - Continuous flow analysis of the Mount Brown South ice core.pdf http://dx.doi.org/10.5194/egusphere-egu21-15782 Harlan, M and Kjaer, HA and Vance, T and Vallelonga, P and Gkinis, V and Blunier, T and Svensson, A and Moy, A and Plummer, C and Jackson, S and Peensoo, K and de Campo, A, Continuous flow analysis of the Mount Brown South ice core, EGU General Assembly 2021, 19-30 April, online, pp. EGU21-15782. (2021) [Conference Extract] http://ecite.utas.edu.au/144073 |
op_doi |
https://doi.org/10.5194/egusphere-egu21-15782 |
_version_ |
1766268552900247552 |