Diatom and Particle Size Analysis from the Bering Sea Shelf
Climate change is amplified in the Arctic, most dramatically seen as a significant reduction in summer sea ice. Unfortunately, satellite observations of sea ice only extend back to 1979, and direct observations before then are spotty at best. Recently, there have been several advances in sea ice pro...
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NSF Arctic Data Center
2016
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ftdatacite:10.18739/a2086358j 2023-05-15T14:58:36+02:00 Diatom and Particle Size Analysis from the Bering Sea Shelf Caissie, Beth 2016 text/xml https://dx.doi.org/10.18739/a2086358j https://arcticdata.io/catalog/view/doi:10.18739/A2086358J en eng NSF Arctic Data Center diatoms sea ice Bering Sea productivity particle size dataset Dataset 2016 ftdatacite https://doi.org/10.18739/a2086358j 2021-11-05T12:55:41Z Climate change is amplified in the Arctic, most dramatically seen as a significant reduction in summer sea ice. Unfortunately, satellite observations of sea ice only extend back to 1979, and direct observations before then are spotty at best. Recently, there have been several advances in sea ice proxies. Specifically improvements in diatom-based proxies and the molecular biomarker, IP25, have allowed quantitative reconstructions of Arctic sea ice. Today, the Bering Sea is seasonally covered in sea ice, and diatoms dominate primary productivity there. This makes it an ideal location for a diatom-based sea ice proxy. This proxy is still in development and will be based on the data presented here compared to satellite-derived sea ice concentration averaged over the ten years preceding sampling. The data set archived here contains diatom counts and detailed grain size analysis for a suite of core tops spanning the range of annual sea ice concentration found in the Bering Sea. Samples were collected on board the Healy during May 2006 and June 2007 as well as from two USGS cruises in 1969. Fifty-seven diatom taxa are recorded and diatom counts are presented in relative percent abundances. Grain size is calculated using a laser diffraction particle size analyzer and is reported as weight percent for grain size bins ranging from 0.375 to 1822 μm. Dataset Arctic Bering Sea Climate change Sea ice DataCite Metadata Store (German National Library of Science and Technology) Arctic Bering Sea |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
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language |
English |
topic |
diatoms sea ice Bering Sea productivity particle size |
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diatoms sea ice Bering Sea productivity particle size Caissie, Beth Diatom and Particle Size Analysis from the Bering Sea Shelf |
topic_facet |
diatoms sea ice Bering Sea productivity particle size |
description |
Climate change is amplified in the Arctic, most dramatically seen as a significant reduction in summer sea ice. Unfortunately, satellite observations of sea ice only extend back to 1979, and direct observations before then are spotty at best. Recently, there have been several advances in sea ice proxies. Specifically improvements in diatom-based proxies and the molecular biomarker, IP25, have allowed quantitative reconstructions of Arctic sea ice. Today, the Bering Sea is seasonally covered in sea ice, and diatoms dominate primary productivity there. This makes it an ideal location for a diatom-based sea ice proxy. This proxy is still in development and will be based on the data presented here compared to satellite-derived sea ice concentration averaged over the ten years preceding sampling. The data set archived here contains diatom counts and detailed grain size analysis for a suite of core tops spanning the range of annual sea ice concentration found in the Bering Sea. Samples were collected on board the Healy during May 2006 and June 2007 as well as from two USGS cruises in 1969. Fifty-seven diatom taxa are recorded and diatom counts are presented in relative percent abundances. Grain size is calculated using a laser diffraction particle size analyzer and is reported as weight percent for grain size bins ranging from 0.375 to 1822 μm. |
format |
Dataset |
author |
Caissie, Beth |
author_facet |
Caissie, Beth |
author_sort |
Caissie, Beth |
title |
Diatom and Particle Size Analysis from the Bering Sea Shelf |
title_short |
Diatom and Particle Size Analysis from the Bering Sea Shelf |
title_full |
Diatom and Particle Size Analysis from the Bering Sea Shelf |
title_fullStr |
Diatom and Particle Size Analysis from the Bering Sea Shelf |
title_full_unstemmed |
Diatom and Particle Size Analysis from the Bering Sea Shelf |
title_sort |
diatom and particle size analysis from the bering sea shelf |
publisher |
NSF Arctic Data Center |
publishDate |
2016 |
url |
https://dx.doi.org/10.18739/a2086358j https://arcticdata.io/catalog/view/doi:10.18739/A2086358J |
geographic |
Arctic Bering Sea |
geographic_facet |
Arctic Bering Sea |
genre |
Arctic Bering Sea Climate change Sea ice |
genre_facet |
Arctic Bering Sea Climate change Sea ice |
op_doi |
https://doi.org/10.18739/a2086358j |
_version_ |
1766330731785617408 |