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  • 1
    Publication Date: 2023-05-12
    Keywords: Chlorophyll a; DEPTH, water; interpolated; LATITUDE; LONGITUDE; Nitrate; Phosphate; Salinity, interpolated; Silicate; Station label; Temperature, water, interpolated
    Type: Dataset
    Format: text/tab-separated-values, 1463 data points
    Location Call Number Limitation Availability
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  • 2
    Publication Date: 2023-06-19
    Keywords: Area/locality; Chlorophyll a; DEPTH, water; interpolated; LATITUDE; LONGITUDE; Mixed layer depth; Nitrate; Phosphate; Salinity, interpolated; Silicate; Station label; Temperature, water, interpolated
    Type: Dataset
    Format: text/tab-separated-values, 27935 data points
    Location Call Number Limitation Availability
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  • 3
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    Unknown
    PANGAEA
    In:  Supplement to: Rampen, Sebastiaan W; Willmott, Verónica; Kim, Jung-Hyun; Uliana, Eleonora; Mollenhauer, Gesine; Schefuß, Enno; Sinninghe Damsté, Jaap S; Schouten, Stefan (2012): Long chain 1,13- and 1,15-diols as a potential proxy for palaeotemperature reconstruction. Geochimica et Cosmochimica Acta, 84, 204-216, https://doi.org/10.1016/j.gca.2012.01.024
    Publication Date: 2023-12-12
    Description: Although commonly reported in marine and freshwater environments, little is known about the biological sources of long chain alkyl 1,13- and 1,15-diols, and factors controlling their distributions. Here we analyzed the occurrence and distribution of these lipids in a comprehensive set of marine surface sediments and compare their distributions with environmental conditions like sea surface temperature (SST), salinity and nutrient concentrations. Fractional abundances of the C28 1,13-, C30 1,13- and C30 1,15-diols show a strong correlation with SST and based on these results, we propose the Long chain Diol Index (LDI), which expresses the C30 1,15-diol abundance relative to those of C28 1,13-, C30 1,13- and C30 1,15-diols. The LDI shows a strong linear correlation with SST (LDI = 0.033 × SST + 0.095; R2 = 0.969, n = 162) over a temperature range of -3 to 27 °C. Long chain diol distributions in sediments from the South Atlantic close to the Congo River outflow (West Africa) provided a 43 kyr LDI SST record. This record reflects several known climatic events and shows similarities with an alkenone-derived SST record obtained using the same suite of sediments, both in trend and in terms of absolute SST. This confirms the potential of the LDI as a proxy for palaeo-SST reconstruction.
    Type: Dataset
    Format: application/zip, 3 datasets
    Location Call Number Limitation Availability
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  • 4
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    Unknown
    PANGAEA
    In:  Supplement to: Rampen, Sebastiaan W; Willmott, Verónica; Kim, Jung-Hyun; Rodrigo-Gámiz, Marta; Uliana, Eleonora; Mollenhauer, Gesine; Schefuß, Enno; Sinninghe Damsté, Jaap S; Schouten, Stefan (2014): Evaluation of long chain 1,14-alkyl diols in marine sediments as indicators for upwelling and temperature. Organic Geochemistry, 76, 39-47, https://doi.org/10.1016/j.orggeochem.2014.07.012
    Publication Date: 2023-12-12
    Description: Long chain alkyl diols form a group of lipids occurring widely in marine environments. Recent studies have suggested several palaeoclimatological applications for proxies based on their distributions, but also revealed uncertainties about their applicability. Here we evaluate the use of long chain 1,14-alkyl diol indices for reconstruction of temperature and upwelling conditions by comparing index values, obtained from a comprehensive set of marine surface sediments, with environmental factors like sea surface temperature (SST), salinity and nutrient concentrations. Previous cultivation efforts indicated a strong effect of temperature on the degree of saturation and the chain length distribution of long chain 1,14-alkyl diols in Proboscia spp., quantified in the diol saturation index (DSI) and diol chain length index (DCI), respectively. However, values of these indices in surface sediments show no relationship with annual mean SST of the overlying water. It remains unknown what determines the DSI, although our data suggests that it may be affected by diagenesis, while the relationship between temperature and DCI may be different for different Proboscia species. In addition, contributions of algae other than Proboscia diatoms may affect both indices, although our data provide no direct evidence for additional long chain 1,14-alkyl diol sources. Two other indices using the abundance of 1,14-diols vs. 1,13-diols and C30 1,15-diols have previously been applied as indicators for upwelling intensity at different locations. The geographical distribution of their values supports the use of 1,14 diols vs. 1,13 diols [C28 + C30 1,14-diols]/[(C28 + C30 1,13-diols) + (C28 + C30 1,14-diols)] as a general indicator for high nutrient or upwelling conditions.
    Type: Dataset
    Format: application/zip, 3 datasets
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  • 5
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    Unknown
    PANGAEA
    In:  Supplement to: Uliana, Eleonora; Lange, Carina Beatriz; Wefer, Gerold (2002): Evidence for Congo River freshwater load in Late Quaternary sediments of ODP Site 1077 (5°S, 10°E). Palaeogeography, Palaeoclimatology, Palaeoecology, 187(1-2), 137-150, https://doi.org/10.1016/S0031-0182(02)00514-X
    Publication Date: 2024-01-09
    Description: Late Quaternary fluctuations in the intensity of Congo River freshwater load were reconstructed using three different proxies (marine and freshwater diatoms, and the delta18O record of Globigerinoides ruber) preserved in the sediments of Ocean Drilling Program (ODP) Site 1077, located at the northern rim of the Congo River fan (5°10'S, 10°26'E). An abrupt change in the diatom assemblage is evident at Termination II: a two- to four-fold increase in (a) the relative abundance of a marine planktonic diatom tolerant of low salinity conditions (Cyclotella litoralis), and (b) in the concentration of freshwater diatoms. The microfossil data suggest a change in the environmental conditions surrounding Site 1077 from predominantly marine to mixed marine/brackish/fresh. The delta18O record of the planktic foraminifera G. ruber (pink) revealed negative deviations from the global oxygen isotope signal since Termination II which occurred during warm stage 1 and substages 3.2, 5.1, 5.3, and 5.5. Comparison of the isotopic signal of ODP Site 1077 with the record from a pelagic location (core GeoB1041 at 3°48'S, 7°05'W) confirms these results. The construction of an artificial delta18O curve using alkenone-derived sea surface temperature (SST) data from a nearby core (GeoB1008 at 6°S, 10°E) allowed us to estimate salinity and temperature effects on the ODP Site 1077 isotopic signal. Although increased SSTs may account for lighter delta18O values during warmer periods, they do not explain the extremely light values documented in the sediments of Site 1077. We used the oxygen isotope difference (Delta delta18O) between our site and GeoB1041 as a proxy for freshwater input. A general trend in the Delta delta18O was observed, with more negative values since Termination II. In addition, conspicuous Delta delta18O negative pulses coincided with periods of northern hemisphere summer insolation maxima over the African continent, suggesting an increase in the freshwater discharge from the Congo River due to enhanced precipitation on the hinterland. Here we propose that the abrupt change in environmental conditions at Site 1077 since Termination II is a consequence of a major reorganization in the depositional environment of the Congo River delta. This reorganization involved sustained equatorward displacement of the Angola-Benguela Front causing a northward deflection of the Congo River plume thus moving plume waters further north than normal and over Site 1077.
    Keywords: 175-1077; 175-1077A; 175-1077B; 175-1077C; Benguela Current, South Atlantic Ocean; COMPCORE; Composite Core; DRILL; Drilling/drill rig; Joides Resolution; Leg175; Ocean Drilling Program; ODP
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Limitation Availability
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  • 6
    Publication Date: 2024-01-09
    Keywords: 175-1077; Actiniscus pentasterias; AGE; Benguela Current, South Atlantic Ocean; Calculated, see reference(s); Calculated from weight/volume; Chrysophyceae cysts; COMPCORE; Composite Core; Counting; Cyclotella litoralis; Density, dry bulk; Depth, composite; DEPTH, sediment/rock; Diatoms, freshwater; Diatoms, littoral; Diatoms, marine; Diatoms, neritic; Diatoms, nutrient rich; Diatoms, oceanic temperate; Diatoms, river induced; Diatoms, warm; DSDP/ODP/IODP sample designation; Ebridians; Intercore correlation; Joides Resolution; Leg175; Ocean Drilling Program; ODP; Phytoliths; Radiolarians; Sample code/label; Sedimentation rate; Silicoflagellates
    Type: Dataset
    Format: text/tab-separated-values, 2470 data points
    Location Call Number Limitation Availability
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  • 7
    Publication Date: 2024-01-09
    Keywords: 175-1077; Age model; Benguela Current, South Atlantic Ocean; Calculated, see reference(s); COMPCORE; Composite Core; DEPTH, sediment/rock; DSDP/ODP/IODP sample designation; Joides Resolution; Leg175; Ocean Drilling Program; ODP; Sample code/label
    Type: Dataset
    Format: text/tab-separated-values, 58 data points
    Location Call Number Limitation Availability
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  • 8
    Publication Date: 2024-02-02
    Keywords: 286; 288; 291; 293; 295; 297; 298; 300; 301; 305; 306; 307; 309; 310; 311; 313; 314; 316; 317; 318; 319; 320; 321; 322; 323; 324; 325; 326; 327; 328; 329; 330; 332; 407-3; 412-2; 416-2; 420-2; 422-2; 423-3; 424-3; 426-3; 430-4; 435-1; 438-2; AMR-1MC; AMR-2; Amundsen Sea; Arabian Sea; Arctic Ocean; AT_II-107_19; AT_II-107_22; AT_II-107_28; AT_II-107_9; ATII_USA; Atlantis II (1963); AUSCAN; Baltic Sea; Barents Sea; BC; Bottom grab (Smith-McIntyre); Box corer; Brazil Basin; bs-6_baltic-proper; BS625; BS627; BS629; BS631; BS633; BS635; BS639; BS645; BS647; BS651; BS653; BS655; BS659; BS661; BS667; BS669; BS673; BS690; CALYPSO; Calypso Corer; Cape Blanc; Central South Atlantic; Comment; Congo Fan; DEPTH, sediment/rock; DNT05-22; Drake Passage; Event label; GC; GeoB10032-1; GeoB10034-3; GeoB10038-3; GeoB13601-3; GeoB13604-2; GeoB13606-2; GeoB13609-2; GeoB13610-2; GeoB13611-3; GeoB13612-3; GeoB13613-3; GeoB13615-4; GeoB13616-6; GeoB13618-2; GeoB1501-1; GeoB1503-2; GeoB2022-3; GeoB2102-1; GeoB2104-1; GeoB2105-3; GeoB2108-1; GeoB2111-2; GeoB2125-2; GeoB2130-1; GeoB2205-4; GeoB2208-1; GeoB2215-8; GeoB2216-2; GeoB2705-7; GeoB2712-1; GeoB2714-5; GeoB2715-1; GeoB2727-1; GeoB2730-1; GeoB2731-1; GeoB2734-2; GeoB2802-2; GeoB2803-2; GeoB2810-2; GeoB2829-1; GeoB6411-4; GeoB6412-1; GeoB6422-5; GeoB6424-1; GeoB6518-1; GeoB7926-2; GeoB8301-5; GeoB8318-1; GeoB8331-2; GeoB9501-4; GeoB9503-3; GeoB9506-3; GeoB9508-4; GeoB9510-3; GeoB9512-4; GeoB9513-5; GeoB9515-2; GeoB9516-4; GeoB9520-4; GeoB9521-3; GeoB9522-2; GeoB9524-3; GeoB9525-5; GeoB9526-4; GeoB9528-1; GeoB9529-1; GeoB9531-2; GeoB9532-1; GeoB9533-3; GeoB9534-4; GeoB9535-5; GeoB9536-4; GeoB9537-4; GeoB9538-5; GeoB9539-1; GeoB9540-1; GeoB9541-1; GeoB9542-1; GeoB9543-1; GeoB9544-1; GeoB9545-1; GeoB9547-2; Giant box corer; GKG; Gravity corer; Gravity corer (Kiel type); Gulf of St. Lawrence; Gullmarsfjord; HB5; HB6; HON02-15; Hudson Bay; IMAGES X - CADO; Indian Ocean; KAL; Kasten corer; LA07/9; Lance; Latitude of event; LMG04-04-KC16; LMG04-04-KC3; LMG05-02KC25; LMG98-02-KC6; Long chain diol, C28 1,13-diol, fractional abundance; Long chain diol, C30 1,13-diol, fractional abundance; Long chain diol, C30 1,15-diol, fractional abundance; Long chain diol, C32 1,15-diol, fractional abundance; Longitude of event; M16/2; M2003-1; M2003-8; M23/1; M23/2; M23/3; M29/1; M29/2; M46/4; M47/3; M53/1; M57/1; M65/1; Maria S. Merian; Marion Dufresne (1995); Mauritania Canyon; MD032603; MD03-2603; MD032604G; MD03-2604G; MD032607; MD03-2607; MD130; MD131; Meteor (1986); Method comment; MS-1; MS-3; MS-4; MSM11/2; MUC; MultiCorer; Nathaniel B. Palmer; NBP00-03-KC1; NBP00-03-KC28; NBP00-03-KC29; NBP00-03-KC30; NBP01-07-KC17; NBP01-07-KC28; NBP01-07-KC49; NBP06-03-3KC; NBP0702; NBP0702_SMG10; NBP0702_SMG13; NBP0702_SMG15; NBP0702_SMG17; NBP0702_SMG20; NBP0702_SMG22; NBP0702_SMG3; NBP95-07-KC2; NBP9903; NBP9903_KC20; NBP9903_KC21; NIOZ89; Northern Mauretania, Cape Timiris; Northern Senegal; North Greenland Sea; North-West African margin; Norwegian Sea; NP-07-13-08; NP-07-13-11; NP-07-13-13; NP-07-13-14; NP-07-13-16; NP-07-13-21; NP-07-13-23; NP-07-13-24; NP-07-13-25; NP-07-13-30; NP-07-13-31; NP-07-13-32; NP-07-13-33; NP-07-13-35; NP-07-13-40; NP-07-13-41; NP-07-13-42; NP-07-13-47; NP-07-13-49; NP-07-13-50; NP-07-13-51; NP-07-13-52; NP-07-13-60; NP-07-13-64; NP-07-13-9; PABESIA; PC; PD90-7-SMG21; PD90-7-SMG6; PD90-7-SMG8; PD90-7-SMG9; Piston corer; Ross Sea; Santos Plateau; Scotia Sea; Senegal Mudbelt; sept01-07; Skagerrak; SL; Slope off Argentina; SMG; SO184/1; Sonne; South Atlantic Ocean; Southeast Atlantic; Southern Ocean; Southern Senegal; South Pacific Ocean; ST_32; ST_34; ST_35; ST_45; Stat_BS-3; Station_A; Station_B; T89-10; T89-11; T89-12; T89-13; T89-14; T89-15; T89-16; T89-17; T89-19; T89-20; T89-21; T89-22; T89-23; T89-24; T89-25; T89-28; T89-30; T89-31; T89-32; T89-33; T89-34; T89-35; T89-36; T89-42-1; T89-47; TSP-1MC; TSP-2MC; TSP-3MC; TY93; Tyro; Uruguay continental margin; Weddell Sea; Western Sahara
    Type: Dataset
    Format: text/tab-separated-values, 910 data points
    Location Call Number Limitation Availability
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  • 9
    Publication Date: 2024-02-02
    Keywords: AGE; Congo Fan; DEPTH, sediment/rock; GeoB6518-1; Gravity corer (Kiel type); M47/3; Meteor (1986); Sea surface temperature, annual mean; SL; SST, from long chain diol index (LDI); SST, from UK'37
    Type: Dataset
    Format: text/tab-separated-values, 285 data points
    Location Call Number Limitation Availability
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  • 10
    Publication Date: 2024-02-02
    Keywords: 286; 288; 291; 293; 295; 297; 298; 300; 301; 305; 306; 307; 309; 310; 311; 313; 314; 316; 317; 318; 319; 320; 321; 322; 323; 324; 325; 326; 327; 328; 329; 330; 332; 407-3; 412-2; 416-2; 420-2; 422-2; 423-3; 424-3; 426-3; 430-4; 435-1; 438-1; AMR-1MC; AMR-2; Amundsen Sea; Arabian Sea; Arctic Ocean; AT_II-107_19; AT_II-107_22; AT_II-107_28; AT_II-107_9; ATII_USA; Atlantis II (1963); AUSCAN; Baltic Sea; Barents Sea; BC; Bodensee; Bottom grab (Smith-McIntyre); Box corer; Brazil Basin; BS-3; bs-6_baltic-proper; BS625; BS627; BS629; BS631; BS633; BS635; BS639; BS645; BS647; BS651; BS653; BS655; BS659; BS661; BS667; BS669; BS673; BS690; CALYPSO; Calypso Corer; Cape Blanc; Central South Atlantic; Comment; Congo Fan; CTD/Rosette; CTD-RO; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; DNT05-22; Drake Passage; Elevation of event; Event label; GC; GeoB10032-1; GeoB10034-3; GeoB10038-3; GeoB13601-3; GeoB13604-2; GeoB13606-2; GeoB13609-2; GeoB13610-2; GeoB13611-3; GeoB13612-3; GeoB13613-3; GeoB13615-4; GeoB13616-6; GeoB13618-1; GeoB1501-1; GeoB1503-2; GeoB2022-3; GeoB2102-1; GeoB2104-1; GeoB2105-3; GeoB2108-1; GeoB2111-2; GeoB2125-2; GeoB2130-1; GeoB2205-4; GeoB2208-1; GeoB2215-8; GeoB2216-2; GeoB2705-7; GeoB2712-1; GeoB2714-5; GeoB2715-1; GeoB2727-1; GeoB2730-1; GeoB2731-1; GeoB2734-2; GeoB2802-2; GeoB2803-2; GeoB2810-2; GeoB2829-1; GeoB6411-4; GeoB6412-1; GeoB6422-5; GeoB6424-1; GeoB6518-1; GeoB7926-2; GeoB8301-5; GeoB8318-1; GeoB8331-2; GeoB9501-4; GeoB9503-3; GeoB9506-3; GeoB9508-4; GeoB9510-3; GeoB9512-4; GeoB9513-5; GeoB9515-2; GeoB9516-4; GeoB9520-4; GeoB9521-3; GeoB9522-2; GeoB9524-3; GeoB9525-5; GeoB9526-4; GeoB9528-1; GeoB9529-1; GeoB9531-2; GeoB9532-1; GeoB9533-3; GeoB9534-4; GeoB9535-5; GeoB9536-4; GeoB9537-4; GeoB9538-5; GeoB9539-1; GeoB9540-1; GeoB9541-1; GeoB9542-1; GeoB9543-1; GeoB9544-1; GeoB9545-1; GeoB9547-2; Giant box corer; GKG; Gravity corer; Gravity corer (Kiel type); Gulf of St. Lawrence; Gullmarsfjord; HB5; HB6; HON02-15; Hudson Bay; IMAGES X - CADO; Indian Ocean; KAL; Kasten corer; LA07/9; Lance; Latitude of event; LMG04-04-KC16; LMG04-04-KC3; LMG05-02KC25; LMG98-02-KC6; Long chain diol, C28:1 1,14-diol, fractional abundance; Long chain diol, C28 1,13-diol, fractional abundance; Long chain diol, C28 1,14-diol, fractional abundance; Long chain diol, C30:1 1,14-diol, fractional abundance; Long chain diol, C30 1,13-diol, fractional abundance; Long chain diol, C30 1,14-diol, fractional abundance; Long chain diol, C30 1,15-diol, fractional abundance; Long chain diol, C32 1,15-diol, fractional abundance; Longitude of event; M16/2; M2003-1; M2003-8; M23/1; M23/2; M23/3; M29/1; M29/2; M46/4; M47/3; M53/1; M57/1; M65/1; Maria S. Merian; Marion Dufresne (1995); Mauritania Canyon; MD032603; MD03-2603; MD032604G; MD03-2604G; MD032607; MD03-2607; MD130; MD131; Meteor (1986); Method/Device of event; MS-1; MS-3; MS-4; MSM11/2; MUC; MultiCorer; Nathaniel B. Palmer; NBP00-03-KC1; NBP00-03-KC28; NBP00-03-KC29; NBP00-03-KC30; NBP01-07-KC17; NBP01-07-KC49; NBP06-03-3KC; NBP0702; NBP0702_SMG10; NBP0702_SMG13; NBP0702_SMG15; NBP0702_SMG17; NBP0702_SMG20; NBP0702_SMG22; NBP0702_SMG3; NBP95-07-KC2; NBP9903; NBP9903_KC20; NBP9903_KC21; NIOZ89; Northern Mauretania, Cape Timiris; Northern Senegal; North Greenland Sea; North-West African margin; Norwegian Sea; NP-07-13-08; NP-07-13-11; NP-07-13-13; NP-07-13-14; NP-07-13-16; NP-07-13-21; NP-07-13-23; NP-07-13-24; NP-07-13-25; NP-07-13-30; NP-07-13-31; NP-07-13-32; NP-07-13-33; NP-07-13-35; NP-07-13-40; NP-07-13-41; NP-07-13-42; NP-07-13-47; NP-07-13-49; NP-07-13-50; NP-07-13-51; NP-07-13-52; NP-07-13-60; NP-07-13-64; NP-07-13-9; PABESIA; PC; PD90-7-SMG21; PD90-7-SMG6; PD90-7-SMG8; PD90-7-SMG9; Piston corer; Ross Sea; Santos Plateau; Scotia Sea; Senegal Mudbelt; sept01-07; Skagerrak; SL; Slope off Argentina; SMG; SO184/1; Sonne; South Atlantic Ocean; Southeast Atlantic; Southern Ocean; Southern Senegal; South Pacific Ocean; ST_32; ST_34; ST_35; ST_45; Station_A; Station_B; T89-10; T89-11; T89-12; T89-13; T89-14; T89-15; T89-16; T89-17; T89-19; T89-20; T89-21; T89-22; T89-23; T89-24; T89-25; T89-28; T89-30; T89-31; T89-32; T89-33; T89-34; T89-35; T89-36; T89-42-1; T89-47; TSP-1MC; TSP-2MC; TSP-3MC; TY93; Tyro; Uruguay continental margin; Weddell Sea; Western Sahara
    Type: Dataset
    Format: text/tab-separated-values, 1931 data points
    Location Call Number Limitation Availability
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