The Dole effect and its variations during the last 130,000 years as measured in the Vostok ice core
International audience We review the current understanding of the Dole effect (the observed difference between the •5180 of atmospheric 0 2 and that of seawater) and its causes, extend the record of variations in the Dole effect back to 130 kyr before present using data on the •5180 of 0 2 obtained...
Published in: | Global Biogeochemical Cycles |
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Language: | English |
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1994
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Online Access: | https://hal.science/hal-03587354 https://hal.science/hal-03587354/document https://hal.science/hal-03587354/file/Global%20Biogeochemical%20Cycles%20-%20September%201994%20-%20Bender%20-%20The%20Dole%20Effect%20and%20its%20variations%20during%20the%20last%20130%20000%20years.pdf https://doi.org/10.1029/94GB00724 |
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ftccsdartic:oai:HAL:hal-03587354v1 2023-05-15T16:38:58+02:00 The Dole effect and its variations during the last 130,000 years as measured in the Vostok ice core Bender, Michael Sowers, Todd Labeyrie, Laurent University of Rhode Island (URI) Centre des Faibles Radioactivités Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS) 1994-09 https://hal.science/hal-03587354 https://hal.science/hal-03587354/document https://hal.science/hal-03587354/file/Global%20Biogeochemical%20Cycles%20-%20September%201994%20-%20Bender%20-%20The%20Dole%20Effect%20and%20its%20variations%20during%20the%20last%20130%20000%20years.pdf https://doi.org/10.1029/94GB00724 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/94GB00724 hal-03587354 https://hal.science/hal-03587354 https://hal.science/hal-03587354/document https://hal.science/hal-03587354/file/Global%20Biogeochemical%20Cycles%20-%20September%201994%20-%20Bender%20-%20The%20Dole%20Effect%20and%20its%20variations%20during%20the%20last%20130%20000%20years.pdf doi:10.1029/94GB00724 info:eu-repo/semantics/OpenAccess ISSN: 0886-6236 EISSN: 1944-8224 Global Biogeochemical Cycles https://hal.science/hal-03587354 Global Biogeochemical Cycles, 1994, 8 (3), pp.363-376. ⟨10.1029/94GB00724⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment info:eu-repo/semantics/article Journal articles 1994 ftccsdartic https://doi.org/10.1029/94GB00724 2023-02-12T15:09:13Z International audience We review the current understanding of the Dole effect (the observed difference between the •5180 of atmospheric 0 2 and that of seawater) and its causes, extend the record of variations in the Dole effect back to 130 kyr before present using data on the •5180 of 0 2 obtained from studying the Vostok ice core (Sowers et al., 1993), and discuss the significance of temporal variations. The Dole effect reflects oxygen isotope fractionation during photosynthesis, respiration, and hydrologic processes (evaporation, precipitation, and evapotranspiration). Our best prediction of the present-day Dole effect, +20.8 %0, is considerably lower than the observed value, + 23.5 %0, and we discuss possible causes of this discrepancy. During the past 130 kyr, the Dole effect has been 0.05 %0 lower than the present value, on average. The standard deviation of the Dole effect from the mean has been only _+ 0.2 %0, and the Dole effect is nearly unchanged between glacial maxima and interglacial periods. The small variability in the Dole effect suggests that relative rates of primary production in the land and marine realms have been relatively constant. Most periodic variability in the Dole effect is in the precession band, suggesting that changes in this global biogeochemical term reflects variations in low-latitude land hydrology and productivity or possibly variability in low-latitude oceanic productivity. Article in Journal/Newspaper ice core Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Global Biogeochemical Cycles 8 3 363 376 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment Bender, Michael Sowers, Todd Labeyrie, Laurent The Dole effect and its variations during the last 130,000 years as measured in the Vostok ice core |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience We review the current understanding of the Dole effect (the observed difference between the •5180 of atmospheric 0 2 and that of seawater) and its causes, extend the record of variations in the Dole effect back to 130 kyr before present using data on the •5180 of 0 2 obtained from studying the Vostok ice core (Sowers et al., 1993), and discuss the significance of temporal variations. The Dole effect reflects oxygen isotope fractionation during photosynthesis, respiration, and hydrologic processes (evaporation, precipitation, and evapotranspiration). Our best prediction of the present-day Dole effect, +20.8 %0, is considerably lower than the observed value, + 23.5 %0, and we discuss possible causes of this discrepancy. During the past 130 kyr, the Dole effect has been 0.05 %0 lower than the present value, on average. The standard deviation of the Dole effect from the mean has been only _+ 0.2 %0, and the Dole effect is nearly unchanged between glacial maxima and interglacial periods. The small variability in the Dole effect suggests that relative rates of primary production in the land and marine realms have been relatively constant. Most periodic variability in the Dole effect is in the precession band, suggesting that changes in this global biogeochemical term reflects variations in low-latitude land hydrology and productivity or possibly variability in low-latitude oceanic productivity. |
author2 |
University of Rhode Island (URI) Centre des Faibles Radioactivités Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Bender, Michael Sowers, Todd Labeyrie, Laurent |
author_facet |
Bender, Michael Sowers, Todd Labeyrie, Laurent |
author_sort |
Bender, Michael |
title |
The Dole effect and its variations during the last 130,000 years as measured in the Vostok ice core |
title_short |
The Dole effect and its variations during the last 130,000 years as measured in the Vostok ice core |
title_full |
The Dole effect and its variations during the last 130,000 years as measured in the Vostok ice core |
title_fullStr |
The Dole effect and its variations during the last 130,000 years as measured in the Vostok ice core |
title_full_unstemmed |
The Dole effect and its variations during the last 130,000 years as measured in the Vostok ice core |
title_sort |
dole effect and its variations during the last 130,000 years as measured in the vostok ice core |
publisher |
HAL CCSD |
publishDate |
1994 |
url |
https://hal.science/hal-03587354 https://hal.science/hal-03587354/document https://hal.science/hal-03587354/file/Global%20Biogeochemical%20Cycles%20-%20September%201994%20-%20Bender%20-%20The%20Dole%20Effect%20and%20its%20variations%20during%20the%20last%20130%20000%20years.pdf https://doi.org/10.1029/94GB00724 |
genre |
ice core |
genre_facet |
ice core |
op_source |
ISSN: 0886-6236 EISSN: 1944-8224 Global Biogeochemical Cycles https://hal.science/hal-03587354 Global Biogeochemical Cycles, 1994, 8 (3), pp.363-376. ⟨10.1029/94GB00724⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/94GB00724 hal-03587354 https://hal.science/hal-03587354 https://hal.science/hal-03587354/document https://hal.science/hal-03587354/file/Global%20Biogeochemical%20Cycles%20-%20September%201994%20-%20Bender%20-%20The%20Dole%20Effect%20and%20its%20variations%20during%20the%20last%20130%20000%20years.pdf doi:10.1029/94GB00724 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/94GB00724 |
container_title |
Global Biogeochemical Cycles |
container_volume |
8 |
container_issue |
3 |
container_start_page |
363 |
op_container_end_page |
376 |
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1766029321241100288 |