Stable-isotope records from Dronning Maud Land, Antarctica
The European Project for Ice Coring in Antarctica (EPICA) includes a comprehensive pre-site survey on the inland ice plateau of Dronning Maud Land. This paper focuses on the investigation of the 18O content of shallow firn and ice cores. These cores were dated by profiles derived from dielectric-pro...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.728240 2023-05-15T13:29:40+02:00 Stable-isotope records from Dronning Maud Land, Antarctica Graf, Wolfgang Oerter, Hans Reinwarth, Oskar Stichler, Willibald Wilhelms, Frank Miller, Heinz Mulvaney, Robert MEDIAN LATITUDE: -74.901073 * MEDIAN LONGITUDE: -0.017707 * SOUTH-BOUND LATITUDE: -75.933333 * WEST-BOUND LONGITUDE: -8.497000 * NORTH-BOUND LATITUDE: -70.600000 * EAST-BOUND LONGITUDE: 11.350000 * DATE/TIME START: 1995-05-18T12:00:00 * DATE/TIME END: 2000-01-28T00:00:00 2002-09-30 application/zip, 41 datasets https://doi.pangaea.de/10.1594/PANGAEA.728240 https://doi.org/10.1594/PANGAEA.728240 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.728240 https://doi.org/10.1594/PANGAEA.728240 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Graf, Wolfgang; Oerter, Hans; Reinwarth, Oskar; Stichler, Willibald; Wilhelms, Frank; Miller, Heinz; Mulvaney, Robert (2002): Stable-isotope records from Dronning Maud Land, Antarctica. Annals of Glaciology, 35, 195-201, https://doi.org/10.3189/172756402781816492 B31 B32 B33 DML01C96_00 DML02C96_00 DML02S98_13 DML03C97_00 DML03C98_09 DML04C97_00 DML05C97_00 DML05C98_07 DML05C98_32 DML06C97_00 DML07C97_00 DML07C98_31 DML08C97_00 DML09S97_13 DML10C97_00 DML11C98_03 DML12C98_17 DML13C98_16 DML14C98_15 DML15C98_14 DML16C98_13 DML17C98_33 DML18C98_04 DML19C98_05 DML19S98_04 DML20C98_08 DML21C98_10 DML22C98_11 DML23C98_12 DML25C00_01 DML26C00_03 DML27C00_04 Dronning Maud Land Antarctica EPICA EPICA_DML1 EPICA_DML2 EPICA_DML3 EPICA_DML5 European Project for Ice Coring in Antarctica FB9506 FB96DML01 FB96DML02 FB97DML03 FB97DML04 FB97DML05 FB97DML06 Dataset 2002 ftpangaea https://doi.org/10.1594/PANGAEA.728240 https://doi.org/10.3189/172756402781816492 2023-01-20T07:31:31Z The European Project for Ice Coring in Antarctica (EPICA) includes a comprehensive pre-site survey on the inland ice plateau of Dronning Maud Land. This paper focuses on the investigation of the 18O content of shallow firn and ice cores. These cores were dated by profiles derived from dielectric-profiling and continuous flow analysis measurements. The individual records were stacked in order to obtain composite chronologies of 18O contents and accumulation rates with enhanced signal-to-noise variance ratios.These chronologies document variations in the last 200 and 1000 years.The 18O contents and accumulation rates decreased in the 19th century and increased during the 20th century.Using the empirical relationships between stable isotopes, accumulation rates and the 10m firn temperature, the variation of both parameters can be explained by the same temperature history.But other causes for these variations, such as the build-up of the snow cover, cannot be excluded. A marked feature of the 1000 year chronology occurs during the period AD 1180-1530 when the 18O contents remains below the long-term mean. Cross-correlation analyses between five cores from the Weddell Sea region and Dronning Maud Land show that 18O records can in some periods be positively correlated and in others negatively correlated, indicating a complex climatic history in time and space. Dataset Annals of Glaciology Antarc* Antarctica Dronning Maud Land EPICA Weddell Sea PANGAEA - Data Publisher for Earth & Environmental Science Dronning Maud Land Weddell Weddell Sea ENVELOPE(-8.497000,11.350000,-70.600000,-75.933333) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
B31 B32 B33 DML01C96_00 DML02C96_00 DML02S98_13 DML03C97_00 DML03C98_09 DML04C97_00 DML05C97_00 DML05C98_07 DML05C98_32 DML06C97_00 DML07C97_00 DML07C98_31 DML08C97_00 DML09S97_13 DML10C97_00 DML11C98_03 DML12C98_17 DML13C98_16 DML14C98_15 DML15C98_14 DML16C98_13 DML17C98_33 DML18C98_04 DML19C98_05 DML19S98_04 DML20C98_08 DML21C98_10 DML22C98_11 DML23C98_12 DML25C00_01 DML26C00_03 DML27C00_04 Dronning Maud Land Antarctica EPICA EPICA_DML1 EPICA_DML2 EPICA_DML3 EPICA_DML5 European Project for Ice Coring in Antarctica FB9506 FB96DML01 FB96DML02 FB97DML03 FB97DML04 FB97DML05 FB97DML06 |
spellingShingle |
B31 B32 B33 DML01C96_00 DML02C96_00 DML02S98_13 DML03C97_00 DML03C98_09 DML04C97_00 DML05C97_00 DML05C98_07 DML05C98_32 DML06C97_00 DML07C97_00 DML07C98_31 DML08C97_00 DML09S97_13 DML10C97_00 DML11C98_03 DML12C98_17 DML13C98_16 DML14C98_15 DML15C98_14 DML16C98_13 DML17C98_33 DML18C98_04 DML19C98_05 DML19S98_04 DML20C98_08 DML21C98_10 DML22C98_11 DML23C98_12 DML25C00_01 DML26C00_03 DML27C00_04 Dronning Maud Land Antarctica EPICA EPICA_DML1 EPICA_DML2 EPICA_DML3 EPICA_DML5 European Project for Ice Coring in Antarctica FB9506 FB96DML01 FB96DML02 FB97DML03 FB97DML04 FB97DML05 FB97DML06 Graf, Wolfgang Oerter, Hans Reinwarth, Oskar Stichler, Willibald Wilhelms, Frank Miller, Heinz Mulvaney, Robert Stable-isotope records from Dronning Maud Land, Antarctica |
topic_facet |
B31 B32 B33 DML01C96_00 DML02C96_00 DML02S98_13 DML03C97_00 DML03C98_09 DML04C97_00 DML05C97_00 DML05C98_07 DML05C98_32 DML06C97_00 DML07C97_00 DML07C98_31 DML08C97_00 DML09S97_13 DML10C97_00 DML11C98_03 DML12C98_17 DML13C98_16 DML14C98_15 DML15C98_14 DML16C98_13 DML17C98_33 DML18C98_04 DML19C98_05 DML19S98_04 DML20C98_08 DML21C98_10 DML22C98_11 DML23C98_12 DML25C00_01 DML26C00_03 DML27C00_04 Dronning Maud Land Antarctica EPICA EPICA_DML1 EPICA_DML2 EPICA_DML3 EPICA_DML5 European Project for Ice Coring in Antarctica FB9506 FB96DML01 FB96DML02 FB97DML03 FB97DML04 FB97DML05 FB97DML06 |
description |
The European Project for Ice Coring in Antarctica (EPICA) includes a comprehensive pre-site survey on the inland ice plateau of Dronning Maud Land. This paper focuses on the investigation of the 18O content of shallow firn and ice cores. These cores were dated by profiles derived from dielectric-profiling and continuous flow analysis measurements. The individual records were stacked in order to obtain composite chronologies of 18O contents and accumulation rates with enhanced signal-to-noise variance ratios.These chronologies document variations in the last 200 and 1000 years.The 18O contents and accumulation rates decreased in the 19th century and increased during the 20th century.Using the empirical relationships between stable isotopes, accumulation rates and the 10m firn temperature, the variation of both parameters can be explained by the same temperature history.But other causes for these variations, such as the build-up of the snow cover, cannot be excluded. A marked feature of the 1000 year chronology occurs during the period AD 1180-1530 when the 18O contents remains below the long-term mean. Cross-correlation analyses between five cores from the Weddell Sea region and Dronning Maud Land show that 18O records can in some periods be positively correlated and in others negatively correlated, indicating a complex climatic history in time and space. |
format |
Dataset |
author |
Graf, Wolfgang Oerter, Hans Reinwarth, Oskar Stichler, Willibald Wilhelms, Frank Miller, Heinz Mulvaney, Robert |
author_facet |
Graf, Wolfgang Oerter, Hans Reinwarth, Oskar Stichler, Willibald Wilhelms, Frank Miller, Heinz Mulvaney, Robert |
author_sort |
Graf, Wolfgang |
title |
Stable-isotope records from Dronning Maud Land, Antarctica |
title_short |
Stable-isotope records from Dronning Maud Land, Antarctica |
title_full |
Stable-isotope records from Dronning Maud Land, Antarctica |
title_fullStr |
Stable-isotope records from Dronning Maud Land, Antarctica |
title_full_unstemmed |
Stable-isotope records from Dronning Maud Land, Antarctica |
title_sort |
stable-isotope records from dronning maud land, antarctica |
publisher |
PANGAEA |
publishDate |
2002 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.728240 https://doi.org/10.1594/PANGAEA.728240 |
op_coverage |
MEDIAN LATITUDE: -74.901073 * MEDIAN LONGITUDE: -0.017707 * SOUTH-BOUND LATITUDE: -75.933333 * WEST-BOUND LONGITUDE: -8.497000 * NORTH-BOUND LATITUDE: -70.600000 * EAST-BOUND LONGITUDE: 11.350000 * DATE/TIME START: 1995-05-18T12:00:00 * DATE/TIME END: 2000-01-28T00:00:00 |
long_lat |
ENVELOPE(-8.497000,11.350000,-70.600000,-75.933333) |
geographic |
Dronning Maud Land Weddell Weddell Sea |
geographic_facet |
Dronning Maud Land Weddell Weddell Sea |
genre |
Annals of Glaciology Antarc* Antarctica Dronning Maud Land EPICA Weddell Sea |
genre_facet |
Annals of Glaciology Antarc* Antarctica Dronning Maud Land EPICA Weddell Sea |
op_source |
Supplement to: Graf, Wolfgang; Oerter, Hans; Reinwarth, Oskar; Stichler, Willibald; Wilhelms, Frank; Miller, Heinz; Mulvaney, Robert (2002): Stable-isotope records from Dronning Maud Land, Antarctica. Annals of Glaciology, 35, 195-201, https://doi.org/10.3189/172756402781816492 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.728240 https://doi.org/10.1594/PANGAEA.728240 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.728240 https://doi.org/10.3189/172756402781816492 |
_version_ |
1766001833570992128 |