The Significance of a New 11,000-Year Volcanic Record from the South Pole and Inferences from Comparisons with Other Volcanic Records
Snow accumulation at the polar regions of the planet preserves chemical substances from the atmosphere creating natural archives. Records of the atmospheric environment including atmospheric chemical composition and the climate can be reconstructed from ice cores from the polar ice sheets. Sulfur em...
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ftsdakotastateun:oai:openprairie.sdstate.edu:etd2-1447 2023-11-12T04:05:30+01:00 The Significance of a New 11,000-Year Volcanic Record from the South Pole and Inferences from Comparisons with Other Volcanic Records Brandis, Derek Lee 2022-01-01T08:00:00Z application/pdf https://openprairie.sdstate.edu/etd2/446 https://openprairie.sdstate.edu/context/etd2/article/1447/viewcontent/Brandis_Derek_2022_Redacted.pdf unknown Open PRAIRIE: Open Public Research Access Institutional Repository and Information Exchange https://openprairie.sdstate.edu/etd2/446 https://openprairie.sdstate.edu/context/etd2/article/1447/viewcontent/Brandis_Derek_2022_Redacted.pdf Electronic Theses and Dissertations Antarctic sulfate aerosols ice cores volcanic eruptions volcanic record Chemistry Environmental Chemistry Oceanography and Atmospheric Sciences and Meteorology Volcanology text 2022 ftsdakotastateun 2023-10-30T10:05:46Z Snow accumulation at the polar regions of the planet preserves chemical substances from the atmosphere creating natural archives. Records of the atmospheric environment including atmospheric chemical composition and the climate can be reconstructed from ice cores from the polar ice sheets. Sulfur emitted by explosive volcanic eruptions is preserved as sulfate in polar snow and can be used to reconstruct the record of volcanic eruptions. Since large volcanic eruptions impact the environment and climate, records of volcanic eruptions from ice cores can help us to study and understand climate change and model the future climate environment. A 1750-m ice core was drilled at the South Pole (SPC14), and major ion analysis was performed via capillary ion chromatography on ice samples. The sulfate data was then used to create a new 11,000-year record of volcanic eruptions from this ice core: the 2022 SPICEcore Volcanic Record, SPVR2022. While other Antarctic ice core records exist, this is the first detailed and quantitative record from a South Pole ice core covering the entire Holocene period (last 11 ka years). The objectives of this dissertation project were: 1) the detection and extraction of signals representing volcanic eruptions from the sulfate data to create SPVR2022, and 2) investigation of the similarities and differences between SPVR2022 and other Antarctic ice core volcanic records, including event frequency, statistical analysis, and relative flux of volcanic sulfate. SPVR2022 shows the number of events within the last 2000 years are similar to that in the high-resolution volcanic record (WHV2020) from the West Antarctic Ice Sheet (WAIS) Divide ice core. No apparent trend is seen in the frequency of events during the Holocene period in SPVR2022, and no statistical difference in the frequency of events in each millennium is found between SPVR2022 and WHV2020. The ten largest events in SPVR2022 show similarities and differences to the ten largest events in WHV2020. Differences may be attributed to different ... Text Antarc* Antarctic ice core Ice Sheet South pole South pole South Dakota State University (SDSU): Open PRAIRIE (Public Research Access Institutional Repository and Information Exchange) Antarctic West Antarctic Ice Sheet South Pole |
institution |
Open Polar |
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South Dakota State University (SDSU): Open PRAIRIE (Public Research Access Institutional Repository and Information Exchange) |
op_collection_id |
ftsdakotastateun |
language |
unknown |
topic |
Antarctic sulfate aerosols ice cores volcanic eruptions volcanic record Chemistry Environmental Chemistry Oceanography and Atmospheric Sciences and Meteorology Volcanology |
spellingShingle |
Antarctic sulfate aerosols ice cores volcanic eruptions volcanic record Chemistry Environmental Chemistry Oceanography and Atmospheric Sciences and Meteorology Volcanology Brandis, Derek Lee The Significance of a New 11,000-Year Volcanic Record from the South Pole and Inferences from Comparisons with Other Volcanic Records |
topic_facet |
Antarctic sulfate aerosols ice cores volcanic eruptions volcanic record Chemistry Environmental Chemistry Oceanography and Atmospheric Sciences and Meteorology Volcanology |
description |
Snow accumulation at the polar regions of the planet preserves chemical substances from the atmosphere creating natural archives. Records of the atmospheric environment including atmospheric chemical composition and the climate can be reconstructed from ice cores from the polar ice sheets. Sulfur emitted by explosive volcanic eruptions is preserved as sulfate in polar snow and can be used to reconstruct the record of volcanic eruptions. Since large volcanic eruptions impact the environment and climate, records of volcanic eruptions from ice cores can help us to study and understand climate change and model the future climate environment. A 1750-m ice core was drilled at the South Pole (SPC14), and major ion analysis was performed via capillary ion chromatography on ice samples. The sulfate data was then used to create a new 11,000-year record of volcanic eruptions from this ice core: the 2022 SPICEcore Volcanic Record, SPVR2022. While other Antarctic ice core records exist, this is the first detailed and quantitative record from a South Pole ice core covering the entire Holocene period (last 11 ka years). The objectives of this dissertation project were: 1) the detection and extraction of signals representing volcanic eruptions from the sulfate data to create SPVR2022, and 2) investigation of the similarities and differences between SPVR2022 and other Antarctic ice core volcanic records, including event frequency, statistical analysis, and relative flux of volcanic sulfate. SPVR2022 shows the number of events within the last 2000 years are similar to that in the high-resolution volcanic record (WHV2020) from the West Antarctic Ice Sheet (WAIS) Divide ice core. No apparent trend is seen in the frequency of events during the Holocene period in SPVR2022, and no statistical difference in the frequency of events in each millennium is found between SPVR2022 and WHV2020. The ten largest events in SPVR2022 show similarities and differences to the ten largest events in WHV2020. Differences may be attributed to different ... |
format |
Text |
author |
Brandis, Derek Lee |
author_facet |
Brandis, Derek Lee |
author_sort |
Brandis, Derek Lee |
title |
The Significance of a New 11,000-Year Volcanic Record from the South Pole and Inferences from Comparisons with Other Volcanic Records |
title_short |
The Significance of a New 11,000-Year Volcanic Record from the South Pole and Inferences from Comparisons with Other Volcanic Records |
title_full |
The Significance of a New 11,000-Year Volcanic Record from the South Pole and Inferences from Comparisons with Other Volcanic Records |
title_fullStr |
The Significance of a New 11,000-Year Volcanic Record from the South Pole and Inferences from Comparisons with Other Volcanic Records |
title_full_unstemmed |
The Significance of a New 11,000-Year Volcanic Record from the South Pole and Inferences from Comparisons with Other Volcanic Records |
title_sort |
significance of a new 11,000-year volcanic record from the south pole and inferences from comparisons with other volcanic records |
publisher |
Open PRAIRIE: Open Public Research Access Institutional Repository and Information Exchange |
publishDate |
2022 |
url |
https://openprairie.sdstate.edu/etd2/446 https://openprairie.sdstate.edu/context/etd2/article/1447/viewcontent/Brandis_Derek_2022_Redacted.pdf |
geographic |
Antarctic West Antarctic Ice Sheet South Pole |
geographic_facet |
Antarctic West Antarctic Ice Sheet South Pole |
genre |
Antarc* Antarctic ice core Ice Sheet South pole South pole |
genre_facet |
Antarc* Antarctic ice core Ice Sheet South pole South pole |
op_source |
Electronic Theses and Dissertations |
op_relation |
https://openprairie.sdstate.edu/etd2/446 https://openprairie.sdstate.edu/context/etd2/article/1447/viewcontent/Brandis_Derek_2022_Redacted.pdf |
_version_ |
1782342011358019584 |