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  • (9Z)-2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyliden)pentadeca-9-ene per unit sediment mass; 2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane per unit sediment mass; Acyclic glycerol dialkyl glycerol tetraether; Age; AGE; B997-316; Crenarchaeol; Crenarchaeol regio-isomer; DEPTH, sediment/rock; Dicyclic glycerol dialkyl glycerol tetraether; Diene II per unit sediment mass; GGC; Giant gravity corer; Glycerol dialkyl glycerol tetraethers; Monocyclic glycerol dialkyl glycerol tetraether; North Icelandic Shelf; Sample ID; Temperature, water, winter; Tetraether index of 86 carbon atoms, low-temperature region; Tricyclic glycerol dialkyl glycerol tetraether  (1)
  • 1345; 3_Lakes_North; Africa; Africa_Lake; Albert; Alice_Lake; Arnuiq; Asia; Ataata; Baejarvotn; Baiyangdian; Baldeggersee; Bandasa; Batoda; Berufjardarvtn; Bigata; Biomarker; Birch; brGDGTs; Brother_of_Fog; Bugwagi; Bukurungu_East; Burton_Lake; Calculated; Canada; Canovasee; Central Europe; Cetian; Chibwera; China; Clyde_Forelands_3; Clyde_Forelands_8; Conductivity, electrical; Daihai_avg; Dalongwan_a; DEPTH, water; Donghu; Edward_Lake; Eldoret_Nakuru_2; Ellis; Enchanted; Engstlensee; Erlongwan_a; Europe; Event label; Faelensee; Fenghe_b; Gallery_Tarn; Garlate_Lake; Gedduvatn; Gerzensee; Glattalpsee; Global River Discharge; Glycerol dialkyl glycerol tetraethers, fractional abundance Ia; Glycerol dialkyl glycerol tetraethers, fractional abundance Ib; Glycerol dialkyl glycerol tetraethers, fractional abundance Ic; Glycerol dialkyl glycerol tetraethers, fractional abundance IIa; Glycerol dialkyl glycerol tetraethers, fractional abundance IIa'; Glycerol dialkyl glycerol tetraethers, fractional abundance IIb; Glycerol dialkyl glycerol tetraethers, fractional abundance IIb'; Glycerol dialkyl glycerol tetraethers, fractional abundance IIc; Glycerol dialkyl glycerol tetraethers, fractional abundance IIc'; Glycerol dialkyl glycerol tetraethers, fractional abundance IIIa; Glycerol dialkyl glycerol tetraethers, fractional abundance IIIa'; Glycerol dialkyl glycerol tetraethers, fractional abundance IIIb; Glycerol dialkyl glycerol tetraethers, fractional abundance IIIb'; Glycerol dialkyl glycerol tetraethers, fractional abundance IIIc; Glycerol dialkyl glycerol tetraethers, fractional abundance IIIc'; GONGHAI; Gonghai Lake; Greifensee_; Grimselsee; Gripdeild; Guanting; Hanging_Tarn; Harris_Tarn; Haukadalsvatn; Hausburg_Tarn; Heidarvatn_Lake; Hinterburgsee; Hinterer_Schwendisee; Hognavatn; Hut_Tarn; Hvalarvatn; HydroLab HL4 (OTT HydroMet); Ibamba; Iceland; Iffigsee; IFFIGSEE; Irene; Kacuba; Kako; Kamweru; Kanyabutetere; Kanyanchu; Kasirya; Katanda; Katunda; Kekerturnak_Lake; Kifuruka; Kisibendi; Kitere; Kivitoo_Highlands_Lake; Kloentalersee; Kopello; Kyasunduka; Kyerbwato; Kyogo; Lago_Alzasca; Lago_Cadagno; Lago_Cama; Lago_Dosso; Lago_Endine; Lago_Ledro; Lago_Lugano; Lago_Mognola; Lago_Poschiavo; Lago_Ritom; Lago_Silvaplana; Lago-Ghirla; Lake_Caizi; Lake_Chagan; Lake_Chang; Lake_Changdang; Lake_Chao; Lake_Dongping; Lake_Dushan; Lake_Gaoyou; Lake_Hengshui; Lake_Hong; Lake_Hongze; Lake_Hulun; Lake_Liangzi; Lake_Longgan; Lake_Luoma; Lake_Qinghai_avg; Lake_Shijiu; Lake_Weishan; Lake_Wolong; Lake_Wuchang; Lake_Yangcheng; Lake_zhenzhu; Lake sediment; Lake surface area; Large_Hall_Tarn; Latitude of event; Lauerzersee; Ledge_Lake; Leirvogsvatn; Lewis_Tarn; Litla_Vidarvatn; Location of event; Longitude of event; Longquanlongwan_a; Loon_Lake; Lower_Simba; Lungerensee; MAHOMA; Mahoma Lake; Mahuhura; Margaretarvatn; Masvatn; Mbajo; Mbugo; Middle_Kachope; Middle_Lake; Midheidarvatn_East; Midheidarvatn_West; Mirambi; MULT; Multiple investigations; Murabio; Murusi; Mwengenyi; Namtso_avg; Nanlongwan_a; Nanyuki_Tarn; Neuenburgersee; Njarayabana; Nkugute; Nkuruba; Nyamswiga; Nyamugosani; Nyamusingere; Nyantonde; Oblong_Tarn; Oeschinensee; Organic Geochemistry; Oxygen, dissolved; paleoclimate proxy; pH; Qaupat; Reference/source; RGS; River gauging station; Rotsee; Ruhandika; Rutundu; Sauravatn; Silsersee; Skjaldarvatn; Skorarvatn; Skufnavotn; Small_Hall_Tarn; Soppensee; South_America_Lake; Spot_Lake; Square_Tarn; Stora_Vidarvatn; Summer warmth index; Svartargilsvatn; Svinavatn; Systravatn; Tanganyika; Teleki_Tarn; Temperature; Temperature, air, mean of months, above freezing; Temperature, air, monthly standard deviation; Temperature, annual mean; Temperature, summer mean; Temperature, warmest month; Thermo Scientific UltiMate 3000 high-performance liquid chromatography instrument coupled to a Q Exactive Focus Orbitrap-Quadrupole high-resolution mass spectrometer (HPLC-MS); Thompson; Thunersee; Torfavatn; Torfdalsvatn; Trollkonuvatn; Truebsee; Veggie_Tarn; Vestra_Gisholtsvatn; Vierwaldstaettersee; Wandakara; Wankenzi; Wuliangsuhai; Xidayang; Ximenglongtan; Yonding, China, Asia; Yuqiao; Zuerichsee  (1)
Collection
Keywords
Publisher
Years
  • 1
    facet.materialart.
    Unknown
    Biomarker and temperature and sea ice proxy data for TEX86 calibration in sediment core B997-316 (2019)
    PANGAEA
    In:  Supplement to: Harning, David J; Andrews, John T; Belt, Simon T; Cabedo-Sanz, Patricia; Geirsdóttir, Áslaug; Dildar, Nadia; Miller, Gifford H; Sepúlveda, Julio (2019): Sea Ice Control on Winter Subsurface Temperatures of the North Iceland Shelf During the Little Ice Age: A TEX86 Calibration Case Study. Paleoceanography and Paleoclimatology, 34(6), 1006-1021, https://doi.org/10.1029/2018PA003523
    Details
    Publication Date: 2023-02-12
    Description: Holocene paleoceanographic reconstructions along the North Iceland Shelf have employed a variety of sea surface temperature and sea ice proxies. However, these surface proxies tend to have a seasonal bias toward spring/summer and thus only provide a discrete snapshot of surface conditions during one season. Furthermore, sea surface temperature proxies can be influenced by additional confounding variables resulting in markedly different Holocene temperature reconstructions. Here, we expand Iceland's marine paleoclimate toolkit with TEX86 L: a temperature proxy based on the distribution of archaeal glycerol dibiphytanyl glycerol tetraether (GDGT) lipids. We develop a local Icelandic calibration from 21 surface sediment samples covering a wide environmental gradient across Iceland's insular shelves. Locally calibrated GDGT results demonstrate that (1) TEX86 L reflects winter subsurface (0-200 m) temperatures on the North Iceland Shelf and (2) our calibration produces more realistic temperature estimates with substantially lower uncertainty (S.E. ±4 °C) over global calibrations. We then apply this new calibration to a high‐resolution marine sediment core (last millennium) collected from the central NIS with age control constrained by 14C‐dated mollusks. To test the veracity of the GDGT subsurface temperatures, we analyze quartz and calcite wt% and a series of highly branched isoprenoid alkenes, including the sea ice biomarker IP25, from the same core. The sediment records demonstrate that the development of thick sea ice during the Little Ice Age warmed the subsurface due to winter insulation. Importantly, this observation reflects a seasonal component of the sea ice/ocean feedback to be considered for the nonlinear cooling of the Little Ice Age in and around Iceland.
    Keywords: (9Z)-2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyliden)pentadeca-9-ene per unit sediment mass; 2,6,10,14-Tetramethyl-7-(3-methylpent-4-enyl)pentadecane per unit sediment mass; Acyclic glycerol dialkyl glycerol tetraether; Age; AGE; B997-316; Crenarchaeol; Crenarchaeol regio-isomer; DEPTH, sediment/rock; Dicyclic glycerol dialkyl glycerol tetraether; Diene II per unit sediment mass; GGC; Giant gravity corer; Glycerol dialkyl glycerol tetraethers; Monocyclic glycerol dialkyl glycerol tetraether; North Icelandic Shelf; Sample ID; Temperature, water, winter; Tetraether index of 86 carbon atoms, low-temperature region; Tricyclic glycerol dialkyl glycerol tetraether
    Type: Dataset
    Format: text/tab-separated-values, 490 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 2
    facet.materialart.
    Unknown
    brGDGT distributions and environmental parameters of lake sediments from the Eastern Canadian Arctic and Iceland, 2003-2019 (2021)
    PANGAEA
    Details
    Publication Date: 2024-02-12
    Description: This dataset contains fractional abundances of the 15 commonly-measured branched glycerol dialkyl glycerol tetraether (brGDGT) lipids in 43 lake surface sediments. It also contains 5 air temperature variables (mean annual temperature (MAT); mean air temperature of months above freezing (MAF); warmest month temperature (WMT); mean summer temperature (MST); summer warmth index (SWI)), mean lake water conductivity, pH, and dissolved oxygen, and minimum dissolved oxygen. Finally, it contains basic lake parameters, including coordinates, maximum lake water depth, and approximate surface area.
    Keywords: 1345; 3_Lakes_North; Africa; Africa_Lake; Albert; Alice_Lake; Arnuiq; Asia; Ataata; Baejarvotn; Baiyangdian; Baldeggersee; Bandasa; Batoda; Berufjardarvtn; Bigata; Biomarker; Birch; brGDGTs; Brother_of_Fog; Bugwagi; Bukurungu_East; Burton_Lake; Calculated; Canada; Canovasee; Central Europe; Cetian; Chibwera; China; Clyde_Forelands_3; Clyde_Forelands_8; Conductivity, electrical; Daihai_avg; Dalongwan_a; DEPTH, water; Donghu; Edward_Lake; Eldoret_Nakuru_2; Ellis; Enchanted; Engstlensee; Erlongwan_a; Europe; Event label; Faelensee; Fenghe_b; Gallery_Tarn; Garlate_Lake; Gedduvatn; Gerzensee; Glattalpsee; Global River Discharge; Glycerol dialkyl glycerol tetraethers, fractional abundance Ia; Glycerol dialkyl glycerol tetraethers, fractional abundance Ib; Glycerol dialkyl glycerol tetraethers, fractional abundance Ic; Glycerol dialkyl glycerol tetraethers, fractional abundance IIa; Glycerol dialkyl glycerol tetraethers, fractional abundance IIa'; Glycerol dialkyl glycerol tetraethers, fractional abundance IIb; Glycerol dialkyl glycerol tetraethers, fractional abundance IIb'; Glycerol dialkyl glycerol tetraethers, fractional abundance IIc; Glycerol dialkyl glycerol tetraethers, fractional abundance IIc'; Glycerol dialkyl glycerol tetraethers, fractional abundance IIIa; Glycerol dialkyl glycerol tetraethers, fractional abundance IIIa'; Glycerol dialkyl glycerol tetraethers, fractional abundance IIIb; Glycerol dialkyl glycerol tetraethers, fractional abundance IIIb'; Glycerol dialkyl glycerol tetraethers, fractional abundance IIIc; Glycerol dialkyl glycerol tetraethers, fractional abundance IIIc'; GONGHAI; Gonghai Lake; Greifensee_; Grimselsee; Gripdeild; Guanting; Hanging_Tarn; Harris_Tarn; Haukadalsvatn; Hausburg_Tarn; Heidarvatn_Lake; Hinterburgsee; Hinterer_Schwendisee; Hognavatn; Hut_Tarn; Hvalarvatn; HydroLab HL4 (OTT HydroMet); Ibamba; Iceland; Iffigsee; IFFIGSEE; Irene; Kacuba; Kako; Kamweru; Kanyabutetere; Kanyanchu; Kasirya; Katanda; Katunda; Kekerturnak_Lake; Kifuruka; Kisibendi; Kitere; Kivitoo_Highlands_Lake; Kloentalersee; Kopello; Kyasunduka; Kyerbwato; Kyogo; Lago_Alzasca; Lago_Cadagno; Lago_Cama; Lago_Dosso; Lago_Endine; Lago_Ledro; Lago_Lugano; Lago_Mognola; Lago_Poschiavo; Lago_Ritom; Lago_Silvaplana; Lago-Ghirla; Lake_Caizi; Lake_Chagan; Lake_Chang; Lake_Changdang; Lake_Chao; Lake_Dongping; Lake_Dushan; Lake_Gaoyou; Lake_Hengshui; Lake_Hong; Lake_Hongze; Lake_Hulun; Lake_Liangzi; Lake_Longgan; Lake_Luoma; Lake_Qinghai_avg; Lake_Shijiu; Lake_Weishan; Lake_Wolong; Lake_Wuchang; Lake_Yangcheng; Lake_zhenzhu; Lake sediment; Lake surface area; Large_Hall_Tarn; Latitude of event; Lauerzersee; Ledge_Lake; Leirvogsvatn; Lewis_Tarn; Litla_Vidarvatn; Location of event; Longitude of event; Longquanlongwan_a; Loon_Lake; Lower_Simba; Lungerensee; MAHOMA; Mahoma Lake; Mahuhura; Margaretarvatn; Masvatn; Mbajo; Mbugo; Middle_Kachope; Middle_Lake; Midheidarvatn_East; Midheidarvatn_West; Mirambi; MULT; Multiple investigations; Murabio; Murusi; Mwengenyi; Namtso_avg; Nanlongwan_a; Nanyuki_Tarn; Neuenburgersee; Njarayabana; Nkugute; Nkuruba; Nyamswiga; Nyamugosani; Nyamusingere; Nyantonde; Oblong_Tarn; Oeschinensee; Organic Geochemistry; Oxygen, dissolved; paleoclimate proxy; pH; Qaupat; Reference/source; RGS; River gauging station; Rotsee; Ruhandika; Rutundu; Sauravatn; Silsersee; Skjaldarvatn; Skorarvatn; Skufnavotn; Small_Hall_Tarn; Soppensee; South_America_Lake; Spot_Lake; Square_Tarn; Stora_Vidarvatn; Summer warmth index; Svartargilsvatn; Svinavatn; Systravatn; Tanganyika; Teleki_Tarn; Temperature; Temperature, air, mean of months, above freezing; Temperature, air, monthly standard deviation; Temperature, annual mean; Temperature, summer mean; Temperature, warmest month; Thermo Scientific UltiMate 3000 high-performance liquid chromatography instrument coupled to a Q Exactive Focus Orbitrap-Quadrupole high-resolution mass spectrometer (HPLC-MS); Thompson; Thunersee; Torfavatn; Torfdalsvatn; Trollkonuvatn; Truebsee; Veggie_Tarn; Vestra_Gisholtsvatn; Vierwaldstaettersee; Wandakara; Wankenzi; Wuliangsuhai; Xidayang; Ximenglongtan; Yonding, China, Asia; Yuqiao; Zuerichsee
    Type: Dataset
    Format: text/tab-separated-values, 4711 data points
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
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