Comparison of northern and central Greenland ice cores records of methanesulfonate covering the last glacial period
Methanesulfonate (MS - ) is measured in ice cores with the objective to obtain a proxy record of marine phytoplankton production of dimethylsulfide (DMS). We present a continuous MS - record covering the last glacial period from the North Greenland Ice Core Project (NGRIP) ice core and compare this...
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ftcopenhagenunip:oai:pure.atira.dk:publications/b88322c0-01af-11de-b05e-000ea68e967b 2023-05-15T14:02:38+02:00 Comparison of northern and central Greenland ice cores records of methanesulfonate covering the last glacial period Jonsell, U. Hansson, M. E. Siggaard-Andersen, M-L- Steffensen, Jørgen Peder 2007 https://curis.ku.dk/portal/da/publications/comparison-of-northern-and-central-greenland-ice-cores-records-of-methanesulfonate-covering-the-last-glacial-period(b88322c0-01af-11de-b05e-000ea68e967b).html https://doi.org/10.1029/2006JD007451 eng eng info:eu-repo/semantics/restrictedAccess Jonsell , U , Hansson , M E , Siggaard-Andersen , M-L & Steffensen , J P 2007 , ' Comparison of northern and central Greenland ice cores records of methanesulfonate covering the last glacial period ' , Journal of Geophysical Research - Atmospheres , vol. 112 , no. D14 , pp. D14313 . https://doi.org/10.1029/2006JD007451 article 2007 ftcopenhagenunip https://doi.org/10.1029/2006JD007451 2022-01-26T23:48:59Z Methanesulfonate (MS - ) is measured in ice cores with the objective to obtain a proxy record of marine phytoplankton production of dimethylsulfide (DMS). We present a continuous MS - record covering the last glacial period from the North Greenland Ice Core Project (NGRIP) ice core and compare this record with the corresponding records previously presented from Greenland and, in particular, with the GISP2 ice core located 320 km south of NGRIP. Despite that the records have similar mean concentrations, their responses to climatic changes during the last glacial period are slightly different. NGRIP MS - concentrations were higher during the cold marine isotopic stages (MIS) 2 and 4 and lower during the warm MIS 5. This long-term trend in MS - , which is similar to the inverse of the corresponding trend in d 18 O, is not detected in the GISP2 MS - record. A systematic response in MS - concentrations to changes between Greenland stadials and interstadials is only detected in the GISP2 record. The different responses of the MS - signals to climate change during the last glacial period are possibly related to the partitioning of air masses reaching the two sites. In contrast to observations from Antarctic records, dust concentrations do not affect the MS - concentrations in the ice, whereas the deposition of sulfate probably is enhanced by high dust concentrations in the atmosphere. The MS - signal has a higher potential of being a proxy record of DMS production changes in Greenlandic compared to Antarctic ice cores. Udgivelsesdato: 31 July Article in Journal/Newspaper Antarc* Antarctic Greenland Greenland ice core Greenland Ice core Project Greenland ice cores greenlandic ice core NGRIP North Greenland North Greenland Ice Core Project University of Copenhagen: Research Antarctic Greenland Journal of Geophysical Research 112 D14 |
institution |
Open Polar |
collection |
University of Copenhagen: Research |
op_collection_id |
ftcopenhagenunip |
language |
English |
description |
Methanesulfonate (MS - ) is measured in ice cores with the objective to obtain a proxy record of marine phytoplankton production of dimethylsulfide (DMS). We present a continuous MS - record covering the last glacial period from the North Greenland Ice Core Project (NGRIP) ice core and compare this record with the corresponding records previously presented from Greenland and, in particular, with the GISP2 ice core located 320 km south of NGRIP. Despite that the records have similar mean concentrations, their responses to climatic changes during the last glacial period are slightly different. NGRIP MS - concentrations were higher during the cold marine isotopic stages (MIS) 2 and 4 and lower during the warm MIS 5. This long-term trend in MS - , which is similar to the inverse of the corresponding trend in d 18 O, is not detected in the GISP2 MS - record. A systematic response in MS - concentrations to changes between Greenland stadials and interstadials is only detected in the GISP2 record. The different responses of the MS - signals to climate change during the last glacial period are possibly related to the partitioning of air masses reaching the two sites. In contrast to observations from Antarctic records, dust concentrations do not affect the MS - concentrations in the ice, whereas the deposition of sulfate probably is enhanced by high dust concentrations in the atmosphere. The MS - signal has a higher potential of being a proxy record of DMS production changes in Greenlandic compared to Antarctic ice cores. Udgivelsesdato: 31 July |
format |
Article in Journal/Newspaper |
author |
Jonsell, U. Hansson, M. E. Siggaard-Andersen, M-L- Steffensen, Jørgen Peder |
spellingShingle |
Jonsell, U. Hansson, M. E. Siggaard-Andersen, M-L- Steffensen, Jørgen Peder Comparison of northern and central Greenland ice cores records of methanesulfonate covering the last glacial period |
author_facet |
Jonsell, U. Hansson, M. E. Siggaard-Andersen, M-L- Steffensen, Jørgen Peder |
author_sort |
Jonsell, U. |
title |
Comparison of northern and central Greenland ice cores records of methanesulfonate covering the last glacial period |
title_short |
Comparison of northern and central Greenland ice cores records of methanesulfonate covering the last glacial period |
title_full |
Comparison of northern and central Greenland ice cores records of methanesulfonate covering the last glacial period |
title_fullStr |
Comparison of northern and central Greenland ice cores records of methanesulfonate covering the last glacial period |
title_full_unstemmed |
Comparison of northern and central Greenland ice cores records of methanesulfonate covering the last glacial period |
title_sort |
comparison of northern and central greenland ice cores records of methanesulfonate covering the last glacial period |
publishDate |
2007 |
url |
https://curis.ku.dk/portal/da/publications/comparison-of-northern-and-central-greenland-ice-cores-records-of-methanesulfonate-covering-the-last-glacial-period(b88322c0-01af-11de-b05e-000ea68e967b).html https://doi.org/10.1029/2006JD007451 |
geographic |
Antarctic Greenland |
geographic_facet |
Antarctic Greenland |
genre |
Antarc* Antarctic Greenland Greenland ice core Greenland Ice core Project Greenland ice cores greenlandic ice core NGRIP North Greenland North Greenland Ice Core Project |
genre_facet |
Antarc* Antarctic Greenland Greenland ice core Greenland Ice core Project Greenland ice cores greenlandic ice core NGRIP North Greenland North Greenland Ice Core Project |
op_source |
Jonsell , U , Hansson , M E , Siggaard-Andersen , M-L & Steffensen , J P 2007 , ' Comparison of northern and central Greenland ice cores records of methanesulfonate covering the last glacial period ' , Journal of Geophysical Research - Atmospheres , vol. 112 , no. D14 , pp. D14313 . https://doi.org/10.1029/2006JD007451 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1029/2006JD007451 |
container_title |
Journal of Geophysical Research |
container_volume |
112 |
container_issue |
D14 |
_version_ |
1766272974892040192 |