Organic marker compounds in surface sediments from the Nordic Seas
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| Sprache: | en |
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PANGAEA
2011
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| author | Müller, Juliane Wagner, Axel Fahl, Kirsten Stein, Ruediger Prange, Matthias Lohmann, Gerrit |
| author_facet | Müller, Juliane Wagner, Axel Fahl, Kirsten Stein, Ruediger Prange, Matthias Lohmann, Gerrit |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Organic geochemical analyses of marine surface sediments from the continental margins of East Greenland and West Spitsbergen provide for a biomarker-based estimate of recent sea ice conditions in the northern North Atlantic. By means of the sea ice proxy IP25 and phytoplankton derived biomarkers (e.g. brassicasterol, dinosterol) we reconstruct sea ice and sea surface conditions, respectively. The combination of IP25 with a phytoplankton marker (in terms of a phytoplankton marker-IP25 index; PIP25) proves highly valuable to properly interpret the sea ice proxy signal as an under- or overestimation of sea ice coverage can be circumvented. A comparison of this biomarker-based assessment of the sea ice distribution in the study area with (1) modern remote sensing data and (2) numerical modelling results reveals a good agreement between organic geochemical, satellite and modelling observations. The reasonable simulation of modern sea ice conditions by means of a regional ocean-sea ice model demonstrates the feasibility to effectively integrate the complex atmospheric and oceanic circulation features as they prevail in the study area. The good correlation between modelled sea ice parameters and the biomarker-based estimate of sea ice coverage substantiates that linking proxy and model data occurs to be a promising concept in terms of a cross-evaluation. This combinatory approach may provide a first step towards quantitative sea ice reconstructions by means of IP25. Future IP25 studies on marine surface sediments from the Arctic realm, however, are recommended to extend and validate this new attempt of using IP25 in combination with a phytoplankton marker as a quantitative measure for sea ice reconstructions. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_759566 |
| institution | PANGAEA |
| language | en |
| publishDate | 2011 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Organic marker compounds in surface sediments from the Nordic Seas Müller, Juliane Wagner, Axel Fahl, Kirsten Stein, Ruediger Prange, Matthias Lohmann, Gerrit 2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane, per unit mass total organic carbon; 2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane, per unit sediment mass; 24-Methylcholesta-5,22E-dien-3beta-ol, per unit mass total organic carbon; 24-Methylcholesta-5,22E-dien-3beta-ol, per unit sediment mass; 4alpha,23,24-Trimethyl-5alpha-cholest-22E-en-3beta-ol, per unit mass total organic carbon; 4alpha,23,24-Trimethyl-5alpha-cholest-22E-en-3beta-ol, per unit sediment mass; ARK-X/2; ARK-XIX/4a; ARK-XVI/1; ARK-XVIII/1; AWI_Paleo; Calculated, see reference(s); DEPTH, sediment/rock; East Greenland Sea; Elevation of event; Event label; Gas chromatography - Mass spectrometry (GC-MS); Giant box corer; GKG; Greenland Sea; HG_II; Hurry Inlet, East Greenland; Iceland Sea; Integrierte Analyse zwischeneiszeitlicher Klimadynamik; INTERDYNAMIK; Kempe Fjord, East Greenland; Latitude of event; Location of event; Longitude of event; MUC; MultiCorer; n-Alkane C15; n-Alkane C15, per unit mass total organic carbon; n-Alkane C17; n-Alkane C17, per unit mass total organic carbon; n-Alkane C19; n-Alkane C19, per unit mass total organic carbon; North Greenland Sea; OBS; OBS314; Ocean bottom seismometer; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Phytoplankton biomarker Brassicasterol IP25 index; Phytoplankton biomarker Dinosterol IP25 index; Phytoplankton biomarker short-chain n-alkanes IP25 index; Polarstern; PS2630-7; PS2642-2; PS2648-3; PS2651-3; PS2654-6; PS31; PS31/138; PS31/155; PS31/172; PS31/177; PS31/180; PS57/127-1; PS57/130-1; PS57/131-2; PS57/136-2; PS57/137-2; PS57/138-1; PS57/145-1; PS57/166-2; PS57 ARKTIEF; PS62; PS62/002-3; PS62/003-3; PS62/004-2; PS62/012-2; PS62/015-4; PS62/017-1; PS62/020-1; PS62/022-3; PS62/026-3; PS62/027-1; PS62/028-1; PS62/029-2; PS62/038-1; PS62/041-1; PS62/044-1; PS62/046-3; PS62/048-1; PS62/050-1; PS64; PS64/487-1; PS64/488-1; PS64/489-1; PS64/490-1; PS64/504-1; PS64/508-1; PS64/511-1; PS64/516-1; PS64/528-1; PS64/531-1; PS64/573-1; PS64/582-1; PS64/583-1; Short-chain n-alkanes, C15H32+C17H36+C19H40, per unit mass total organic carbon; Short-chain n-alkanes, C15H32+C17H36+C19H40, per unit sediment mass; Ø Fjord, East Greenland Organic geochemical analyses of marine surface sediments from the continental margins of East Greenland and West Spitsbergen provide for a biomarker-based estimate of recent sea ice conditions in the northern North Atlantic. By means of the sea ice proxy IP25 and phytoplankton derived biomarkers (e.g. brassicasterol, dinosterol) we reconstruct sea ice and sea surface conditions, respectively. The combination of IP25 with a phytoplankton marker (in terms of a phytoplankton marker-IP25 index; PIP25) proves highly valuable to properly interpret the sea ice proxy signal as an under- or overestimation of sea ice coverage can be circumvented. A comparison of this biomarker-based assessment of the sea ice distribution in the study area with (1) modern remote sensing data and (2) numerical modelling results reveals a good agreement between organic geochemical, satellite and modelling observations. The reasonable simulation of modern sea ice conditions by means of a regional ocean-sea ice model demonstrates the feasibility to effectively integrate the complex atmospheric and oceanic circulation features as they prevail in the study area. The good correlation between modelled sea ice parameters and the biomarker-based estimate of sea ice coverage substantiates that linking proxy and model data occurs to be a promising concept in terms of a cross-evaluation. This combinatory approach may provide a first step towards quantitative sea ice reconstructions by means of IP25. Future IP25 studies on marine surface sediments from the Arctic realm, however, are recommended to extend and validate this new attempt of using IP25 in combination with a phytoplankton marker as a quantitative measure for sea ice reconstructions. |
| title | Organic marker compounds in surface sediments from the Nordic Seas |
| topic | 2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane, per unit mass total organic carbon; 2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane, per unit sediment mass; 24-Methylcholesta-5,22E-dien-3beta-ol, per unit mass total organic carbon; 24-Methylcholesta-5,22E-dien-3beta-ol, per unit sediment mass; 4alpha,23,24-Trimethyl-5alpha-cholest-22E-en-3beta-ol, per unit mass total organic carbon; 4alpha,23,24-Trimethyl-5alpha-cholest-22E-en-3beta-ol, per unit sediment mass; ARK-X/2; ARK-XIX/4a; ARK-XVI/1; ARK-XVIII/1; AWI_Paleo; Calculated, see reference(s); DEPTH, sediment/rock; East Greenland Sea; Elevation of event; Event label; Gas chromatography - Mass spectrometry (GC-MS); Giant box corer; GKG; Greenland Sea; HG_II; Hurry Inlet, East Greenland; Iceland Sea; Integrierte Analyse zwischeneiszeitlicher Klimadynamik; INTERDYNAMIK; Kempe Fjord, East Greenland; Latitude of event; Location of event; Longitude of event; MUC; MultiCorer; n-Alkane C15; n-Alkane C15, per unit mass total organic carbon; n-Alkane C17; n-Alkane C17, per unit mass total organic carbon; n-Alkane C19; n-Alkane C19, per unit mass total organic carbon; North Greenland Sea; OBS; OBS314; Ocean bottom seismometer; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Phytoplankton biomarker Brassicasterol IP25 index; Phytoplankton biomarker Dinosterol IP25 index; Phytoplankton biomarker short-chain n-alkanes IP25 index; Polarstern; PS2630-7; PS2642-2; PS2648-3; PS2651-3; PS2654-6; PS31; PS31/138; PS31/155; PS31/172; PS31/177; PS31/180; PS57/127-1; PS57/130-1; PS57/131-2; PS57/136-2; PS57/137-2; PS57/138-1; PS57/145-1; PS57/166-2; PS57 ARKTIEF; PS62; PS62/002-3; PS62/003-3; PS62/004-2; PS62/012-2; PS62/015-4; PS62/017-1; PS62/020-1; PS62/022-3; PS62/026-3; PS62/027-1; PS62/028-1; PS62/029-2; PS62/038-1; PS62/041-1; PS62/044-1; PS62/046-3; PS62/048-1; PS62/050-1; PS64; PS64/487-1; PS64/488-1; PS64/489-1; PS64/490-1; PS64/504-1; PS64/508-1; PS64/511-1; PS64/516-1; PS64/528-1; PS64/531-1; PS64/573-1; PS64/582-1; PS64/583-1; Short-chain n-alkanes, C15H32+C17H36+C19H40, per unit mass total organic carbon; Short-chain n-alkanes, C15H32+C17H36+C19H40, per unit sediment mass; Ø Fjord, East Greenland |
| url | https://doi.org/10.1594/PANGAEA.759566 |