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202-1240; 202-1242; CD38-17P; Center for Marine Environmental Sciences; Cocos Ridge; Comment; COMPCORE; Composite Core; Difference; Equatorial East Pacific; Event label; GC; Giant piston corer; GPC; Gravity corer; IMAGES VIII - MONA; Joides Resolution; KNR195-5-CDH26; Leg202; Marion Dufresne (1995); MARUM; MD022529; MD02-2529; MD126; ME0005A; ME0005A-27JC; ME0005A-43JC; Melville; NEMO; North Pacific Ocean; PC; Piston corer; Reference/source; Sample code/label; Sea surface temperature; South Pacific Ocean; Species; TR163-19; TR163-22; V19; V19-27; V19-28; V19-30; V21; V21-30; Vema (1)
361-U1476A; 361-U1476C; 361-U1476D; 361-U1476E; AGE; Calculated; Date/Time of event; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Event label; Exp361; Globigerinoides ruber, δ18O; Globigerinoides ruber, δ18O, standard deviation; Ice volume corrected; Identification; Indian Ocean; IODP Depth Scale Terminology; Joides Resolution; Latitude of event; Longitude of event; Magnesium/Calcium ratio; oxygen isotope ratios; oxygen isotopes; planktic foraminifera; Salinity; Temperature; Sample code/label; Sea surface salinity; Sea surface temperature; Sea surface temperature, standard deviation; South African Climates (Agulhas LGM Density Profile); SST from Mg/Ca ratios; δ18O, seawater, reconstructed; δ18O, seawater, reconstructed, standard deviation
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AGE; ANT-VIII/3; AWI_Paleo; DEPTH, sediment/rock; Gravity corer (Kiel type); Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Polarstern; PS16; PS16/311; PS1768-8; Radiolarians, δ30Si; Shona Ridge; SL
AGE; AWI_Envi; AWI_Paleo; DEPTH, sediment/rock; INOPEX; KAL; Kasten corer; North Pacific Ocean; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Polar Terrestrial Environmental Systems @ AWI; Quantile (Q0.025); Quantile (Q0.16); Quantile (Q0.84); Quantile (Q0.975); SO202/1; SO202/1_27-6; Sonne; δ18O, seawater, reconstructed
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202-1240; 202-1242; CD38-17P; Center for Marine Environmental Sciences; Cocos Ridge; Comment; COMPCORE; Composite Core; Difference; Equatorial East Pacific; Event label; GC; Giant piston corer; GPC; Gravity corer; IMAGES VIII - MONA; Joides Resolution; KNR195-5-CDH26; Leg202; Marion Dufresne (1995); MARUM; MD022529; MD02-2529; MD126; ME0005A; ME0005A-27JC; ME0005A-43JC; Melville; NEMO; North Pacific Ocean; PC; Piston corer; Reference/source; Sample code/label; Sea surface temperature; South Pacific Ocean; Species; TR163-19; TR163-22; V19; V19-27; V19-28; V19-30; V21; V21-30; Vema (1)
361-U1476A; 361-U1476C; 361-U1476D; 361-U1476E; AGE; Calculated; Date/Time of event; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Event label; Exp361; Globigerinoides ruber, δ18O; Globigerinoides ruber, δ18O, standard deviation; Ice volume corrected; Identification; Indian Ocean; IODP Depth Scale Terminology; Joides Resolution; Latitude of event; Longitude of event; Magnesium/Calcium ratio; oxygen isotope ratios; oxygen isotopes; planktic foraminifera; Salinity; Temperature; Sample code/label; Sea surface salinity; Sea surface temperature; Sea surface temperature, standard deviation; South African Climates (Agulhas LGM Density Profile); SST from Mg/Ca ratios; δ18O, seawater, reconstructed; δ18O, seawater, reconstructed, standard deviation
AGE; ANT-VIII/3; AWI_Paleo; DEPTH, sediment/rock; Gravity corer (Kiel type); Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Polarstern; PS16; PS16/311; PS1768-8; Radiolarians, δ18O; Shona Ridge; SL
AGE; ANT-VIII/3; AWI_Paleo; DEPTH, sediment/rock; Gravity corer (Kiel type); Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Polarstern; PS16; PS16/311; PS1768-8; Radiolarians, δ30Si; Shona Ridge; SL
AGE; AWI_Envi; AWI_Paleo; DEPTH, sediment/rock; INOPEX; KAL; Kasten corer; North Pacific Ocean; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Polar Terrestrial Environmental Systems @ AWI; Quantile (Q0.025); Quantile (Q0.16); Quantile (Q0.84); Quantile (Q0.975); SO202/1; SO202/1_27-6; Sonne; δ18O, seawater, reconstructed

Unbekannt

(Table S2) The reconstructed sea surface temperature (SST) over the eastern equatorial Pacific (2016)

Zhang, Yancheng ; Zhang, Xu ; Chiessi, Cristiano Mazur ; [weitere]

PANGAEA

In: Supplement to: Zhang, Yancheng; Zhang, Xu; Chiessi, Cristiano Mazur; Mulitza, Stefan; Zhang, Xiao; Lohmann, Gerrit; Prange, Matthias; Behling, Hermann; Zabel, Matthias; Govin, Aline; Sawakuchi, André Oliveira; da Cruz Junior, Francisco William; Wefer, Gerold (2016): Equatorial Pacific forcing of western Amazonian precipitation during Heinrich Stadial 1. Scientific Reports, 6, 35866, https://doi.org/10.1038/srep35866

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Details

Publikationsdatum: 2023-11-25

Beschreibung: Abundant hydroclimatic evidence from western Amazonia and the adjacent Andes documents wet conditions during Heinrich Stadial 1 (HS1, 18-15 ka), a cold period in the high latitudes of the North Atlantic. This precipitation anomaly was attributed to a strengthening of the South American summer monsoon due to a change in the Atlantic interhemispheric sea surface temperature (SST) gradient. However, the physical viability of this mechanism has never been rigorously tested. We address this issue by combining a thorough compilation of tropical South American paleorecords and a set of atmosphere model sensitivity experiments. Our results show that the Atlantic SST variations alone, although leading to dry conditions in northern South America and wet conditions in northeastern Brazil, cannot produce increased precipitation over western Amazonia and the adjacent Andes during HS1. Instead, an eastern equatorial Pacific SST increase (i.e., 0.5-1.5 °C), in response to the slowdown of the Atlantic Meridional Overturning Circulation during HS1, is crucial to generate the wet conditions in these regions. The mechanism works via anomalous low sea level pressure over the eastern equatorial Pacific, which promotes a regional easterly low-level wind anomaly and moisture recycling from central Amazonia towards the Andes.

Schlagwort(e): 202-1240; 202-1242; CD38-17P; Center for Marine Environmental Sciences; Cocos Ridge; Comment; COMPCORE; Composite Core; Difference; Equatorial East Pacific; Event label; GC; Giant piston corer; GPC; Gravity corer; IMAGES VIII - MONA; Joides Resolution; KNR195-5-CDH26; Leg202; Marion Dufresne (1995); MARUM; MD022529; MD02-2529; MD126; ME0005A; ME0005A-27JC; ME0005A-43JC; Melville; NEMO; North Pacific Ocean; PC; Piston corer; Reference/source; Sample code/label; Sea surface temperature; South Pacific Ocean; Species; TR163-19; TR163-22; V19; V19-27; V19-28; V19-30; V21; V21-30; Vema

Materialart: Dataset

Format: text/tab-separated-values, 88 data points

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