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  • (9E)-2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyliden)pentadeca-9-ene, per unit mass total organic carbon; (9Z)-2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyliden)pentadeca-9-ene, per unit mass total organic carbon; 2,10,14-Trimethyl-6-enyl-7-(3-methylpent-1-enyl)pentadecene, per unit mass total organic carbon; 24-ethylcholest-5-en-3beta-ol, per unit mass total organic carbon; 24-Methylcholest-5-en-3beta-ol, per unit mass total organic carbon; 24-Methylcholesta-5,22E-dien-3beta-ol, per unit mass total organic carbon; 4alpha,23,24-Trimethyl-5alpha-cholest-22E-en-3beta-ol, per unit mass total organic carbon; Age; AGE; Age, error; Antarctic sea ice; ANT-XXXI/3; AWI_Envi; AWI_Paleo; Branched and isoprenoid tetraether index; Bransfield Strait; Carbon, organic, total; Carbon/Nitrogen ratio; cholesta-5,24-dien-3beta-ol, per unit mass total organic carbon; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Gas chromatography - Mass spectrometry (GC-MS); highly branched isoprenoids; IPSO25; Lead-210 excess; Lead-210 excess, error; MUC; MultiCorer; Paleoclimate; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Phytoplankton biomarker Brassicasterol IPSO25 index; Phytoplankton biomarker Dinosterol IPSO25 index; Phytoplankton biomarker HBI E-Triene IPSO25 index; Phytoplankton biomarker HBI Z-Triene IPSO25 index; PIPSO25 calculated after Vorrath et al., 2019; Polarstern; Polar Terrestrial Environmental Systems @ AWI; PS97; PS97/072-2; sea ice proxy; Sedimentation rate per year; SOTOH, SOT based on RI-OH caculated after Lü et al., 2015 (Eq. 13 and 14); SOTTEX, SOT based on TEXL86 calculated after Kim et al., 2010 (Eq. 7 and 8); Sub-surface ocean temperature  (1)
  • Amundsen Sea; ANT-XXIII/4; ANT-XXXI/3; ANT-XXXII/3; ANT-XXXIII/2; AWI_Paleo; BC; Biomarker; Box corer; Bransfield Strait; Drake Passage; Elevation of event; Event label; GBG; GC; Giant box corer; Giant box grab; GKG; Gravity corer; HBIs; IPSO25; Latitude of event; Longitude of event; model simulation; MUC; MultiCorer; Multicorer with television; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Polarstern; PS104; PS104_12-4; PS104_14-2; PS104_17-2; PS104_22-3; PS104_43-3; PS111; PS111_114-3; PS111_131-2; PS111_13-2; PS111_139-2; PS111_15-1; PS111_16-3; PS111_27-1; PS111_29-3; PS111_40-2; PS111_42-1; PS111_47-2; PS111_53-3; PS111_60-3; PS111_70-2; PS111_80-3; PS111_98-3; PS118; PS118_10-3; PS118_12-2; PS118_24-2; PS118_38-5; PS118_48-2; PS118_5-3; PS118_62-3; PS118_75-1; PS118_8-4; PS69; PS69/255-3; PS69/269-1; PS69/272-3; PS69/275-2; PS69/283-5; PS69/284-2; PS69/288-3; PS69/292-3; PS69/297-1; PS69/299-1; PS69/302-3; PS97; PS97/042-1; PS97/044-1; PS97/045-1; PS97/046-6; PS97/048-1; PS97/049-2; PS97/052-3; PS97/053-1; PS97/054-2; PS97/056-1; PS97/059-1; PS97/060-1; PS97/061-1; PS97/062-1; PS97/065-2; PS97/067-2; PS97/068-2; PS97/069-1; PS97/072-2; PS97/073-2; PS97/074-1; PS97/077-1; PS97/079-1; PS97/080-2; PS97/083-1; PS97/084-2; Scotia Sea; Sea ice; Sea ice concentration, spring; Sea ice concentration, spring, standard deviation; Sea ice concentration, summer; Sea ice concentration, summer, standard deviation; Sea ice concentration, winter; Sea ice concentration, winter, standard deviation; TVMUC; Weddell Sea  (1)
  • Jet Stream  (1)
Document type
Keywords
Publisher
Language
Years
  • 1
    Publication Date: 2023-06-27
    Keywords: Amundsen Sea; ANT-XXIII/4; ANT-XXXI/3; ANT-XXXII/3; ANT-XXXIII/2; AWI_Paleo; BC; Biomarker; Box corer; Bransfield Strait; Drake Passage; Elevation of event; Event label; GBG; GC; Giant box corer; Giant box grab; GKG; Gravity corer; HBIs; IPSO25; Latitude of event; Longitude of event; model simulation; MUC; MultiCorer; Multicorer with television; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Polarstern; PS104; PS104_12-4; PS104_14-2; PS104_17-2; PS104_22-3; PS104_43-3; PS111; PS111_114-3; PS111_131-2; PS111_13-2; PS111_139-2; PS111_15-1; PS111_16-3; PS111_27-1; PS111_29-3; PS111_40-2; PS111_42-1; PS111_47-2; PS111_53-3; PS111_60-3; PS111_70-2; PS111_80-3; PS111_98-3; PS118; PS118_10-3; PS118_12-2; PS118_24-2; PS118_38-5; PS118_48-2; PS118_5-3; PS118_62-3; PS118_75-1; PS118_8-4; PS69; PS69/255-3; PS69/269-1; PS69/272-3; PS69/275-2; PS69/283-5; PS69/284-2; PS69/288-3; PS69/292-3; PS69/297-1; PS69/299-1; PS69/302-3; PS97; PS97/042-1; PS97/044-1; PS97/045-1; PS97/046-6; PS97/048-1; PS97/049-2; PS97/052-3; PS97/053-1; PS97/054-2; PS97/056-1; PS97/059-1; PS97/060-1; PS97/061-1; PS97/062-1; PS97/065-2; PS97/067-2; PS97/068-2; PS97/069-1; PS97/072-2; PS97/073-2; PS97/074-1; PS97/077-1; PS97/079-1; PS97/080-2; PS97/083-1; PS97/084-2; Scotia Sea; Sea ice; Sea ice concentration, spring; Sea ice concentration, spring, standard deviation; Sea ice concentration, summer; Sea ice concentration, summer, standard deviation; Sea ice concentration, winter; Sea ice concentration, winter, standard deviation; TVMUC; Weddell Sea
    Type: Dataset
    Format: text/tab-separated-values, 402 data points
    Location Call Number Limitation Availability
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  • 2
    Publication Date: 2023-11-30
    Keywords: (9E)-2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyliden)pentadeca-9-ene, per unit mass total organic carbon; (9Z)-2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyliden)pentadeca-9-ene, per unit mass total organic carbon; 2,10,14-Trimethyl-6-enyl-7-(3-methylpent-1-enyl)pentadecene, per unit mass total organic carbon; 24-ethylcholest-5-en-3beta-ol, per unit mass total organic carbon; 24-Methylcholest-5-en-3beta-ol, per unit mass total organic carbon; 24-Methylcholesta-5,22E-dien-3beta-ol, per unit mass total organic carbon; 4alpha,23,24-Trimethyl-5alpha-cholest-22E-en-3beta-ol, per unit mass total organic carbon; Age; AGE; Age, error; Antarctic sea ice; ANT-XXXI/3; AWI_Envi; AWI_Paleo; Branched and isoprenoid tetraether index; Bransfield Strait; Carbon, organic, total; Carbon/Nitrogen ratio; cholesta-5,24-dien-3beta-ol, per unit mass total organic carbon; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Gas chromatography - Mass spectrometry (GC-MS); highly branched isoprenoids; IPSO25; Lead-210 excess; Lead-210 excess, error; MUC; MultiCorer; Paleoclimate; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Phytoplankton biomarker Brassicasterol IPSO25 index; Phytoplankton biomarker Dinosterol IPSO25 index; Phytoplankton biomarker HBI E-Triene IPSO25 index; Phytoplankton biomarker HBI Z-Triene IPSO25 index; PIPSO25 calculated after Vorrath et al., 2019; Polarstern; Polar Terrestrial Environmental Systems @ AWI; PS97; PS97/072-2; sea ice proxy; Sedimentation rate per year; SOTOH, SOT based on RI-OH caculated after Lü et al., 2015 (Eq. 13 and 14); SOTTEX, SOT based on TEXL86 calculated after Kim et al., 2010 (Eq. 7 and 8); Sub-surface ocean temperature
    Type: Dataset
    Format: text/tab-separated-values, 827 data points
    Location Call Number Limitation Availability
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  • 3
    Publication Date: 2021-09-27
    Description: An abundance of evidence indicates that the tropics are expanding. Despite many attempts to decipher the cause, the underlying dynamical mechanism driving tropical expansion is still not entirely clear. Here, based on observations, multimodel simulations from the Coupled Model Intercomparison Project phase 5 (CMIP5) and purposefully designed numerical experiments, the variations and trends of the tropical width are explored from a regional perspective. We find that the width of the tropics closely follows the displacement of oceanic midlatitude meridional temperature gradients (MMTG). Under global warming, as a first-order response, the subtropical ocean experiences more surface warming because of the mean Ekman convergence of anomalously warm water. The enhanced subtropical warming, which is partially independent of natural climate oscillations, such as the Pacific Decadal Oscillation, leads to poleward advance of the MMTG and drives the tropical expansion. Our results, supported by both observations and model simulations, imply that global warming may have already significantly contributed to the ongoing tropical expansion, especially over the ocean-dominant Southern Hemisphere.
    Keywords: 551.6 ; Tropical Expansion ; Ocean Circulation ; Jet Stream ; Storm Track ; Mid-latitude Temperature Gradients ; Global Warming
    Language: English
    Type: map
    Location Call Number Limitation Availability
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