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  • 2010-2014  (3,083,989)
  • 1960-1964  (438,921)
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  • 1
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    Neon diffusion kinetics in olivine, pyroxene and feldspar: Retentivity of cosmogenic and nucleogenic neon (2012)
    In:  Geochimica et Cosmochimica Acta
    Details
    Publication Date: 2024-05-29
    Type: info:eu-repo/semantics/article
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    PAPER (OA)
  • 2
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    (Table 1) Hydrochemical characteristics of water samples taken from Lake Herschel at different depths and from different seasons (2013)
    PANGAEA
    Details
    Publication Date: 2024-05-29
    Keywords: AWI_PerDyn; AWI Arctic Land Expedition; CA-Land_2009_YukonLakes; Conductivity; DATE/TIME; DEPTH, water; Lake_Herschel; Permafrost Research (Periglacial Dynamics) @ AWI; pH; pH and conductivity meter, WTW, Multilab 540; Temperature, water; Water sample; WS; Yukon_Lakes_2009
    Type: Dataset
    Format: text/tab-separated-values, 18 data points
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    DATA PANGAEA
  • 3
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    Ground ice hydrochemical composition of permafrost core ICDP5011-3 (2014)
    PANGAEA
    In:  Supplement to: Schwamborn, Georg; Meyer, Hanno; Schirrmeister, Lutz; Fedorov, Grigory B (2014): Past freeze and thaw cycling in the margin of the El'gygytgyn crater deduced from a 141 m long permafrost record. Climate of the Past, 10(3), 1109-1123, https://doi.org/10.5194/cp-10-1109-2014
    Details
    Publication Date: 2024-05-29
    Description: The continuous sediment record from Lake El'gygytgyn in the northeastern Eurasian Arctic spans the last 3.6 Ma and for much of this time permafrost dynamics and lake level changes have likely played a crucial role for sediment delivery to the lake. Changes in the ground-ice hydrochemical composition (d18O, dD, pH, electrical conductivity, Na+, Mg2+, Ca2+, K+, HCO3-, Cl-, SO4-) of a 141 m long permafrost record from the western crater plain are examined to reconstruct repeated periods of freeze and thaw at the lake edge. Stable water isotope and major ion records of ground ice in the permafrost reflect both a synsedimentary palaeo-precipitation signal preserved in the near-surface permafrost (0.0-9.1 m core depth) and a post-depositional record of thawing and refreezing in deeper layers of the core (9.1-141.0 m core depth). These lake marginal permafrost dynamics were controlled by lake level changes that episodically flooded the surfaces and induced thaw in the underlying frozen ground. During times of lake level fall these layers froze over again. At least three cycles of freeze and thaw are identified and the hydrochemical data point to a vertical and horizontal talik refreezing through time. Past permafrost thaw and freeze may have destabilised the basin slopes of Lake El'gygytgyn and this has probably promoted the release of mass movements from the lake edge to the deeper basin as known from frequently occurring turbidite layers in the lake sediment column.
    Keywords: Bicarbonate; Calcium; Chloride ion; Conductivity, electrolytic; DEPTH, sediment/rock; ELGYGYTGYN; Elgygytgyn crater lake, Sibiria, Russia; ICDP_Elgygytgyn-Drilling-Project; ICDP5011-3; ICP-OES, Perkin-Elmer, Optima 3000XL; Ion chromatograph, Dionex Corporation, DX-320; Lake Elgygytgyn - Climate History of the Arctic since 3.6 Million Years; Magnesium; Mass spectrometer Finnigan Delta-S; pH; pH and conductivity meter, WTW, Multilab 540; Pneumatic rotary drill "SIF-650M"; PRD; Sampling on land; Sodium and Potassium; Sulfate ion; Titration potentiometric, 794 Basic Titrino (Metrohm); Water content, wet mass; δ18O, water; δ Deuterium, water
    Type: Dataset
    Format: text/tab-separated-values, 3202 data points
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    DATA PANGAEA
  • 4
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    (Table S1) Sedimentary data. Weight-percent coarse-fraction (wt.% CF, 〉 63 µm) data for the PETM records of ODP Sites 1262, 1263, and 1266 and supplementary percent calcite (% CaCO3) data for the PETM records of ODP Sites 1263 and 1266 (2010)
    PANGAEA
    Details
    Publication Date: 2024-05-29
    Keywords: 208-1262; Age model; Autoanalyzer, UIC, CM5240 TIC [coupled coulometer]; Calcium carbonate; COMPCORE; Composite Core; DEPTH, sediment/rock; Hole; Joides Resolution; Leg208; Ocean Drilling Program; ODP; see reference(s); Size fraction 〉 0.063 mm, sand; Walvis Ridge, Southeast Atlantic Ocean
    Type: Dataset
    Format: text/tab-separated-values, 1902 data points
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  • 5
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    FTIR-inferred biogeochemical properties for the past 3.6 Myr in the sediment record of core ICDP5011-1 in Lake Elgygytgyn, NE Russia (2014)
    PANGAEA
    In:  Supplement to: Meyer-Jacob, Carsten; Vogel, Hendrik; Gebhardt, Andrea Catalina; Wennrich, Volker; Melles, Martin; Rosén, Peter (2014): Biogeochemical variability during the past 3.6 million years recorded by FTIR spectroscopy in the sediment record of Lake El'gygytgyn, Far East Russian Arctic. Climate of the Past, 10(1), 209-220, https://doi.org/10.5194/cp-10-209-2014
    Details
    Publication Date: 2024-05-28
    Description: A number of studies have shown that Fourier transform infrared spectroscopy (FTIR) can be applied to quantitatively assess lacustrine sediment constituents. In this study, we developed calibration models based on FTIR for the quantitative determination of biogenic silica (BSi; n = 420; gradient: 0.9-56.5%), total organic carbon (TOC; n = 309; gradient: 0-2.9%), and total inorganic carbon (TIC; n= 152; gradient: 0-0.4%) in a 318 m-long sediment record with a basal age of 3.6 million years from Lake El'gygytgyn, Far East Russian Arctic. The developed partial least squares (PLS) regression models yield high cross-validated (CV) R2CV = 0.86-0.91 and low root mean square error of cross-validation (RMSECV) (3.1-7.0% of the gradient for the different properties). By applying these models to 6771 samples from the entire sediment record, we obtained detailed insight into bioproductivity variations in Lake El'gygytgyn throughout the middle to late Pliocene and Quaternary. High accumulation rates of BSi indicate a productivity maximum during the middle Pliocene (3.6-3.3 Ma), followed by gradually decreasing rates during the late Pliocene and Quaternary. The average BSi accumulation during the middle Pliocene was ~3 times higher than maximum accumulation rates during the past 1.5 million years. The indicated progressive deterioration of environmental and climatic conditions in the Siberian Arctic starting at ca. 3.3 Ma is consistent with the first occurrence of glacial periods and the finally complete establishment of glacial-interglacial cycles during the Quaternary.
    Keywords: Accumulation rate, biogenic silica per year; Accumulation rate, inorganic carbon per year; Accumulation rate, total organic carbon per year; AGE; Calculated; Carbon, inorganic, total; Carbon, organic, total; COMPCORE; Composite Core; ELGYGYTGYN; Elgygytgyn crater lake, Sibiria, Russia; Fourier transform infrared spectroscopy (FTIR); ICDP_Elgygytgyn-Drilling-Project; ICDP5011-1; Lake Elgygytgyn - Climate History of the Arctic since 3.6 Million Years; Opal, biogenic silica; Sampling on land
    Type: Dataset
    Format: text/tab-separated-values, 38682 data points
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    DATA PANGAEA
  • 6
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    Time-oriented earth observation measurements from the Baseline Surface Radiation Network (BSRN) in the years 1992 to 2012, reference list of 6813 datasets (2012)
    PANGAEA
    Details
    Publication Date: 2024-05-28
    Keywords: Alaska, USA; Algeria; Alice Springs; Antarctica; ASP; Australia; AWIPEV; AWIPEV_based; BAR; Barrow; Baseline Surface Radiation Network; BER; Bermuda; BIL; Billings; BON; Bondville; BOS; BOU; Boulder; Brasilia; Brasilia City, Distrito Federal, Brazil; Brazil; BRB; BSRN; CAB; Cabauw; CAM; Camborne; Canada; CAR; Carpentras; Cener; Chesapeake Light; China; CLH; CNR; COC; Cocos (Keeling) Islands; Cocos Island; Colorado, United States of America; Concordia Station, Dome C; Cosmonauts Sea; DAA; DAR; Darwin; Darwin Met Office; De Aar; Desert Rock; DOM; DRA; Dronning Maud Land, Antarctica; DWN; E13; Ellesmere Island, Canadian Arctic Archipelago; Estonia; EUR; Eureka; FLO; Florianopolis; Fort Peck; FPE; France; FUA; Fukuoka; GCR; Georg von Neumayer; Germany; Goodwin Creek; GVN; Illinois, United States of America; ILO; Ilorin; ISH; Ishigakijima; Israel; IZA; Izaña; Japan; KWA; Kwajalein; LAU; Lauder; LER; Lerwick; LIN; Lindenberg; Macdonnell Ranges, Northern Territory, Australia; MAN; Minamitorishima; Minami-Torishima; Mississippi, United States of America; MNM; Momote; Monitoring station; MONS; Montana, United States of America; NAU; Nauru; Nauru Island; Neumayer_based; NEUMAYER III; Nevada, United States of America; New Zealand; Nigeria; North Pacific Ocean; NYA; Ny-Ålesund; Ny-Ålesund, Spitsbergen; Oklahoma, United States of America; PAL; Palaiseau, SIRTA Observatory; Papua New Guinea; PAY; Payerne; Pennsylvania, United States of America; Petrolina; PSU; PTR; REG; Regina; RLM; Rock Springs; Rolim de Moura; São Martinho da Serra; SAP; Sapporo; Saudi Arabia; SBO; Sede Boqer; Shetland Island, United Kingdom; Siberia, Russia; Sioux Falls; SMS; Solar Village; South Africa; South Atlantic Ocean; South Dakota, United States of America; Southern Great Plains; South Pole; SOV; Spain, Sarriguren, Navarra; SPO; Switzerland; SXF; SYO; Syowa; TAM; Tamanrasset; TAT; Tateno; Tenerife, Spain; The Netherlands; TIK; Tiksi; TOR; Toravere; United Kingdom; XIA; Xianghe
    Type: Dataset
    Format: 6787 datasets
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  • 7
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    Documentation of sediment core MSM31_585-3 (2014)
    PANGAEA
    In:  Alfred Wegener Institute - Polarstern core repository
    Details
    Publication Date: 2024-05-28
    Keywords: Arctic Ocean; AWI_Paleo; GC; Gravity corer; Maria S. Merian; MSM31; MSM31_585-3; Paleoenvironmental Reconstructions from Marine Sediments @ AWI
    Type: Dataset
    Format: unknown
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  • 8
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    Pigments measured on water bottle samples during BAFFIN cruise BAF89/3 (2013)
    PANGAEA
    Details
    Publication Date: 2024-05-28
    Keywords: 19-Butanoyloxyfucoxanthin; 19-Hexanoyloxyfucoxanthin; Alloxanthin; alpha-Carotene, beta,epsilon-Carotene; BAF89/3; BAF89/3-1; BAF89/3-2; BAF89/3-3; BAF89/3-4; BAF89/3-5; BAF89/3-7; BAF89/3-9; Baffin; beta-Carotene, beta,beta-Carotene; Bottle, Niskin; Chlorophyll a; Chlorophyll b; Chlorophyll c; Chlorophyll c3; Date/Time of event; DEPTH, water; Diadinoxanthin; Event label; Fucoxanthin; High Performance Liquid Chromatography (HPLC); JGOFS; Joint Global Ocean Flux Study; Latitude of event; Longitude of event; NIS; Peridinin; South Atlantic Ocean; Zeaxanthin + Lutein
    Type: Dataset
    Format: text/tab-separated-values, 494 data points
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  • 9
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    Basic measurements of radiation at station Izaña (2012-03) (2012)
    PANGAEA
    In:  Izaña Atmospheric Research Center, Meteorological State Agency of Spain
    Details
    Publication Date: 2024-05-28
    Keywords: Air temperature at 2 m height; BARO; Barometer; Baseline Surface Radiation Network; BSRN; DATE/TIME; Diffuse radiation; Diffuse radiation, maximum; Diffuse radiation, minimum; Diffuse radiation, standard deviation; Direct radiation; Direct radiation, maximum; Direct radiation, minimum; Direct radiation, standard deviation; HEIGHT above ground; Humidity, relative; HYGRO; Hygrometer; IZA; Izaña; Long-wave downward radiation; Long-wave downward radiation, maximum; Long-wave downward radiation, minimum; Long-wave downward radiation, standard deviation; Monitoring station; MONS; Pyranometer, Kipp & Zonen, CM21, SN 080032, WRMC No. 61002; Pyranometer, Kipp & Zonen, CM21, SN 080034, WRMC No. 61001; Pyrgeometer, Kipp & Zonen, CGR4, SN 050783, WRMC No. 61008; Pyrheliometer, Kipp & Zonen, CH1, SN 080050, WRMC No. 61003; Short-wave downward (GLOBAL) radiation; Short-wave downward (GLOBAL) radiation, maximum; Short-wave downward (GLOBAL) radiation, minimum; Short-wave downward (GLOBAL) radiation, standard deviation; Station pressure; Tenerife, Spain; Thermometer
    Type: Dataset
    Format: text/tab-separated-values, 837193 data points
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  • 10
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    Basic measurements of radiation at station Izaña (2013-11) (2013)
    PANGAEA
    In:  Izaña Atmospheric Research Center, Meteorological State Agency of Spain
    Details
    Publication Date: 2024-05-28
    Keywords: Air temperature at 2 m height; BARO; Barometer; Baseline Surface Radiation Network; BSRN; DATE/TIME; Diffuse radiation; Diffuse radiation, maximum; Diffuse radiation, minimum; Diffuse radiation, standard deviation; Direct radiation; Direct radiation, maximum; Direct radiation, minimum; Direct radiation, standard deviation; HEIGHT above ground; Humidity, relative; HYGRO; Hygrometer; IZA; Izaña; Long-wave downward radiation; Long-wave downward radiation, maximum; Long-wave downward radiation, minimum; Long-wave downward radiation, standard deviation; Monitoring station; MONS; Pyranometer, Kipp & Zonen, CM21, SN 080032, WRMC No. 61002; Pyranometer, Kipp & Zonen, CM21, SN 080034, WRMC No. 61001; Pyrgeometer, Kipp & Zonen, CGR4, SN 050783, WRMC No. 61008; Pyrheliometer, Kipp & Zonen, CH1, SN 080050, WRMC No. 61003; Short-wave downward (GLOBAL) radiation; Short-wave downward (GLOBAL) radiation, maximum; Short-wave downward (GLOBAL) radiation, minimum; Short-wave downward (GLOBAL) radiation, standard deviation; Station pressure; Tenerife, Spain; Thermometer
    Type: Dataset
    Format: text/tab-separated-values, 810269 data points
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