cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.668480
title: Basic and other measurements of radiation at station Barrow (1997-09), Version 1

description: Ellsworth G. Dutton discovered a calibration glitch in the SWD "Short-wave downward (GLOBAL) radiation" data for Barrow, Alaska. SWD data was therefore removed from this dataset. Please refer to the updated Version 2 (see replaced by reference) with correct calibration.
DOI: 10.1594/pangaea.764048
title: Ultra-violet measurements from station Izaña (2011-07)
DOI: 10.1594/pangaea.548883
title: Physical oceanography at CTD station Chan_2003-10-17_5, Chanavallita, Chile
DOI: 10.1594/pangaea.805790
title: (Appendix A -Table 7) Geochemistry at DSDP Hole 82-564

description: Sediment depth is given in mbsf. All samples belong to Chemical Group I.
DOI: 10.1594/pangaea.815843
title: Medem Channel profiles based on stand-alone model simulation and corrections with nudging

description: State-of-the-art process-based models have shown to be applicable to the simulation and prediction of coastal morphodynamics. On annual to decadal temporal scales, these models may show limitations in reproducing complex natural morphological evolution patterns, such as the movement of bars and tidal channels, e.g. the observed decadal migration of the Medem Channel in the Elbe Estuary, German Bight. Here a morphodynamic model is shown to simulate the hydrodynamics and sediment budgets of the domain to some extent, but fails to adequately reproduce the pronounced channel migration, due to the insufficient implementation of bank erosion processes. In order to allow for long-term simulations of the domain, a nudging method has been introduced to update the model-predicted bathymetries with observations. The model-predicted bathymetry is nudged towards true states in annual time steps. Sensitivity analysis of a user-defined correlation length scale, for the definition of the background error covariance matrix during the nudging procedure, suggests that the optimal error correlation length is similar to the grid cell size, here 80-90 m. Additionally, spatially heterogeneous correlation lengths produce more realistic channel depths than do spatially homogeneous correlation lengths. Consecutive application of the nudging method compensates for the (stand-alone) model prediction errors and corrects the channel migration pattern, with a Brier skill score of 0.78. The proposed nudging method in this study serves as an analytical approach to update model predictions towards a predefined 'true' state for the spatiotemporal interpolation of incomplete morphological data in long-term simulations.
description: Supplement to: Chu, Kai; Winter, Christian; Hebbeln, Dierk; Schulz, Michael (2013): Improvement of morphodynamic modeling of tidal channel migration by nudging. Coastal Engineering, 77, 1-13
DOI: 10.1594/pangaea.698973
title: (Table 1) Stable oxygen and carbon isotope ratios of benthic foraminifera from DSDP Hole 81-552A in the northeastern Atlantic Ocean
DOI: 10.1594/pangaea.692367
title: Concentrations of chlorophyll-alpha in sea water from the euphotic zone at Station SEPT-94-GN3619940280300800 in the Aegean Sea

description: Samples from 2 l of sea water were filtered through polycarbonate Millipore. The filters were kept deep frozen and analyzed according to Holm-Hansen et al. (Holm-Hansen, O., Lorenzen, C.J., Holmes, R.W., Strickland, J.D.H. 1965. Fluorometric determination of chlorophyll. Journal du Conseil Permanent International Pour l'Exploration de la Mer 30, 3-15).
DOI: 10.1594/pangaea.665964
title: Oceanography at CTD/bottle station IFREMER_2790
DOI: 10.1594/pangaea.923893
title: Stable isotopes of Uvigerina spp. measured on sediment core MD10-3340
DOI: 10.1594/pangaea.682708
title: (Table 5) Stable carbon and oxygen isotope ratios of Late Quaternary foraminifera from ODP Hole 122-762B in the southeast Indian Ocean
DOI: 10.1594/pangaea.663787
title: Oceanography at CTD/bottle station IFREMER_0627
DOI: 10.1594/pangaea.847299
title: Bottom water data time series at benthic lander NuSOB station HE412/27-1

description: The datasets were obtained by a CTD (Sea & Sun) mounted 1 meter above the seafloor on the lander frame.
DOI: 10.1594/pangaea.859698
title: Continuous thermosalinograph oceanography along HEINCKE cruise track HE326
DOI: 10.34740/kaggle/dsv/8999956
title: BBC News
DOI: 10.1594/pangaea.846226
title: Ultra-violet measurements from station Izaña (2015-04)
DOI: 10.1594/pangaea.729969
title: (Table 15) Mineral composition of sediments from the Galapagos hydrothermal Mound Field
DOI: 10.1594/pangaea.809187
title: Single cell abundances of Amsterdam mud volcano sediments measured at station MSM13/4_1034-1
DOI: 10.1594/pangaea.682289
title: Stable isotope ratios of benthic and planktonic foraminifera from Late Miocene sediments of DSDP Hole 24-238 on the Central Indian Ocean Ridge (Appendix 1)

description: Tropical Indian Ocean planktonic and benthic foraminifera have 13C/12C ratios which change abruptly within Magnetic Epoch 6 about 6.2 million years ago. All species analyzed in the Late Miocene section of DSDP Site 238 show a shift towards lighter values of delta13C by about 0.8‰. The oxygen isotope signal indicates that the pre-shift period is climatically quiet while the post-shift period has strong fluctuations. We suggest that the shift reflects a sudden increase in the rate of supply of organic carbon from coastal lowlands and from shelves exposed by regression, as well as a change in deep circulation patterns and ocean fertility. The event marks the transition of the ocean-atmosphere system from a quiet Early and Middle Neogene climatic regime toward a Late Neogene regime characterized by climatic amplifying mechanisms (albedo feedback, bottom water production) located around the northern North Atlantic. The beginning of this regime may have been strongly influenced by the isolation of the Mediterranean basin.
description: Supplement to: Vincent, Edith; Killingley, John S; Berger, Wolfgang H (1980): The Magnetic Epoch-6 carbon shift: A change in the ocean´s 13C/12C ratio 6.2 million years ago. Marine Micropaleontology, 5, 185-203
DOI: 10.1594/pangaea.751178
title: Meteorological observations during PHAETON cruise from Madeira to Bermuda started at 1825-07-01
DOI: 10.1594/pangaea.846861
title: Snow height on sea ice and sea ice drift from autonomous measurements from buoy 2015S22, deployed during the Norwegian Young sea ICE cruise N-ICE 2015

description: Snow height was measured by the Snow Depth Buoy 2015S22, an autonomous platform, drifting on Arctic sea ice, deployed during the Norwegian Young sea ICE cruise (N-ICE 2015) project. The resulting time series describes the evolution of snow depth as a function of place and time between 2015-03-01 and 2015-05-06 in sample intervals of 1 hour. The Snow Depth Buoy consists of four independent sonar measurements representing the area (approx. 10 m**2) around the buoy. The buoy was installed on first year ice. In addition to snow depth, geographic position (GPS), barometric pressure, air temperature, and ice surface temperature were measured. Negative values of snow depth occur if surface ablation continues into the sea ice. Thus, these measurements describe the position of the sea ice surface relative to the original snow-ice interface. Differences between single sensors indicate small-scale variability of the snow pack around the buoy. The data set has been processed, including the removal of obvious inconsistencies (missing values). Records without any snow depth may still be used for sea ice drift analyses.
description: Project: Norwegian Young sea ICE cruise (N-ICE 2015)
DOI: 10.1594/pangaea.846862
title: Snow height on sea ice and sea ice drift from autonomous measurements from buoy 2015S26, deployed during the Norwegian Young sea ICE cruise N-ICE 2015

description: Snow height was measured by the Snow Depth Buoy 2015S26, an autonomous platform, drifting on Arctic sea ice, deployed during the Norwegian Young sea ICE cruise (N-ICE 2015) project. The resulting time series describes the evolution of snow depth as a function of place and time between 05 Feb 2015 and 21 Feb 2015 in sample intervals of 1 hour. The Snow Depth Buoy consists of four independent sonar measurements representing the area (approx. 10 m**2) around the buoy. The buoy was installed on first year ice. In addition to snow depth, geographic position (GPS), barometric pressure, air temperature, and ice surface temperature were measured. Negative values of snow depth occur if surface ablation continues into the sea ice. Thus, these measurements describe the position of the sea ice surface relative to the original snow-ice interface. Differences between single sensors indicate small-scale variability of the snow pack around the buoy. The data set has been processed, including the removal of obvious inconsistencies (missing values). Records without any snow depth may still be used for sea ice drift analyses.
description: Projects: DFG Exzellenzcluster Integrated Climate System Analysis and Prediction (DFG EXC177), Norwegian Young sea ICE cruise (N-ICE 2015)
DOI: 10.1594/pangaea.722108
title: Other measurements at 10 m from station Goodwin Creek (2008-12)
DOI: 10.1594/pangaea.860347
title: Radiosonde measurements from station Izaña (2016-04)

description: Start location: Guimar; Distance from radiation site: 5 km
DOI: 10.1594/pangaea.866893
title: Isotopic ratios and CaCO3 content in sediment core U938
DOI: 10.1594/pangaea.916690
title: 1-Hz PPP displacements at GEONET station 0494 during the 2011 Tohoku Mw9.0 earthquake
DOI: 10.1594/pangaea.847014
title: (Appendix) Rare earth element concentrations of individual zircon domains from Gjelsvikfjella, Dronning Maud Land
DOI: 10.1594/pangaea.778497
title: Magnetic remanence on section halves of cores from IODP Hole 317-U1352C

description: Geocode = Depth CSF-A (m).Handbook for Shipboard Paleomagnetists; Technical Note 34: http://www-odp.tamu.edu/publications/tnotes/tn34/TNOTE_34.PDF
DOI: 10.1594/pangaea.806575
title: (Table 4) Representative plagioclase analyses of ODP Hole 140-504B
DOI: 10.1594/pangaea.757919
title: Late Miocene-Early Pliocene oxygen and carbon isotopic measurements from DSDP site 29-284, southern Pacific
DOI: 10.1594/pangaea.864108
title: Uvigerina spp. minor element and derived δ¹⁸Oseawater records over the Mid-Pleistocene Transition (500-1500 kyr), DSDP Hole 94-607

description: During the Mid-Pleistocene Transition (MPT), the dominant glacial-interglacial cyclicity as inferred from the marine d18O records of benthic foraminifera (d18Obenthic) changed from 41 kyr to 100 kyr years in the absence of a comparable change in orbital forcing. Currently, only two Mg/Ca-derived, high-resolution bottom water temperature (BWT) records exist that can be used with d18Obenthic records to separate temperature and ice volume signals over the Pleistocene. However, these two BWT records suggest a different pattern of climate change occurred over the MPT-a record from North Atlantic DSDP Site 607 suggests BWT decreased with no long-term trend in ice volume over the MPT, while South Pacific ODP Site 1123 suggests that BWT has been relatively stable over the last 1.5 Myr but that there was an abrupt increase in ice volume at ~900 kyr. In this paper we attempt to reconcile these two views of climate change across the MPT. Specifically, we investigated the suggestion that the secular BWT trend obtained from Mg/Ca measurements on Cibicidoides wuellerstorfi and Oridorsalis umbonatus species from N. Atlantic Site 607 is biased by the possible influence of D[CO3]2- on Mg/Ca values in these species by generating a low-resolution BWT record using Uvigerina spp., a genus whose Mg/Ca values are not thought to be influenced by D[CO3]2-. We find a long-term BWT cooling of ~2-3°C occurred from 1500 to ~500 kyr in the N. Atlantic, consistent with the previously generated C. wuellerstorfi and O. umbonatus BWT record. We also find that changes in ocean circulation likely influenced d18Obenthic, BWT, and d18Oseawater records across the MPT. N. Atlantic BWT cooling starting at ~1.2 Ma, presumably driven by high-latitude cooling, may have been a necessary precursor to a threshold response in climate-ice sheet behavior at ~900 ka. At that point, a modest increase in ice volume and thermohaline reorganization may have caused enhanced sensitivity to the 100 kyr orbital cycle.
description: Supplement to: Ford, Heather L; Sosdian, Sindia M; Rosenthal, Yair; Raymo, Maureen E (2016): Gradual and abrupt changes during the Mid-Pleistocene Transition. Quaternary Science Reviews, 148, 222-233
DOI: 10.1594/pangaea.722591
title: (Table DR4) Oxygen isotopic composition in foraminifera from ODP Hole 167-1019C
DOI: 10.1594/pangaea.866887
title: Isotopic ratios and CaCO3 content in sediment core CHAT_1k
DOI: 10.1594/pangaea.811094
title: (Table 9) Nannoplankton occurrences in DSDP Hole 90-593

description: Sediment depth is given in mbsf. Species abundance: A = abundant (&gt;50 specimens), C = common (25-49 specimens), and R = rare (&lt;25 specimens) - = absent, obtained by scanning an area measuring approximately 45 mm**2.
DOI: 10.1594/pangaea.868711
title: Planktonic foraminiferal stable isotopic record of ODP Site 138-851

description: We evaluated the response of eastern equatorial Pacific upper water column hydrography to the Panama seaway closure and the initiation of large-scale northern hemisphere glaciation, The d18O gradient between Globorotalia tumida and Globigerinoides sacculifer indicates a general shoaling of the thermocline between 4.2 and 3.0 Ma which may be related to a recorded decrease in southeast trade wind strength. The d13C gradients suggest that surface water nutrient concentrations have increased during the last 5 Myr and that upwelling intermediate waters began to change sources at ~3.2 Ma. Changes in the trans-Pacific east-west temperature and nutrient gradients at 4.0 and 1.5 Ma are coincident with the seaway closure and a major phase of northern hemisphere glaciation. Changes in the sensitivity of surface circulation to Milankovitch forcing, d18O records linearly related to orbital variations only after 3.2 Ma, are associated with the seaway closure. Pleistocene initiation of 100 and 41 kyr cycles in the thermocline depth proxy may suggest that the hydrographic response to Milankovitch forcing is enhanced by air-sea interactions which maintain the relatively steep Pleistocene trans-Pacific gradients. The d13C records are dominated by the 41 kyr period and are usually coherent with high-latitude climate, suggesting that associated changes in the global carbon reservoir dominate the tropical d13C signals.
description: Supplement to: Cannariato, Kevin G; Ravelo, Ana Christina (1997): Pliocene-Pleistocene evolution of eastern tropical Pacific surface water circulation and thermocline depth. Paleoceanography, 12(6), 805-820
DOI: 10.1594/pangaea.499264
title: Physical oceanography from BT during cruise U90XX00017B_1904
DOI: 10.1594/pangaea.773772
title: Summarized lithologic description from IODP Hole 316-C0006F

description: Geocode = [m CSF-A] Top Core depth (below sea floor)
DOI: 10.1594/pangaea.755694
title: Ozone measurements from station Izaña (2010-12)
DOI: 10.1594/pangaea.859735
title: Continuous thermosalinograph oceanography along HEINCKE cruise track HE368
DOI: 10.1594/pangaea.798087
title: Ultra-violet measurements from station Izaña (2012-10)
DOI: 10.1594/pangaea.857989
title: (Table 3) Benthic foraminiferal stable isotopes in the Holocene Time Slice
DOI: 10.1594/pangaea.810692
title: (Table 10) Benthic foraminifera in late Miocene sediments of DSDP Hole 90-591

description: Abundances: X = present, A = very abundant, - = absent.
DOI: 10.1594/pangaea.713209
title: Smear slide analysis of sediment core GeoB6328-1
DOI: 10.1594/pangaea.908513
title: Ultra-violet measurements from station Izaña (2019-10)
DOI: 10.1594/pangaea.742763
title: (Table 1) Benthic and planktonic foraminiferal oxygen and carbon isotopic data from ODP Site 167-1014

description: Sediment depth is composite depth (mcd)
DOI: 10.1594/pangaea.718962
title: (Appendix 1) Oxygen and carbon isotopic composition in foraminifera from DSDP Hole 95-612 sediments
DOI: 10.1594/pangaea.847476
title: Continuous meteorological observations in high-resolution (1Hz) at University of Oldenburg (2014-01)
DOI: 10.1594/pangaea.820147
title: (Table 7) Geochemistry of spinels at DSDP Hole 60-453

description: Structural formulae on the basis of 32 oxygens.
DOI: 10.1594/pangaea.847744
title: Continuous meteorological observations in high-resolution (1Hz) at University of Oldenburg (2014-05)
DOI: 10.1594/pangaea.863088
title: Stable isotope ratios of foraminifera in sediment core MD77-194
DOI: 10.1594/pangaea.650357
title: Description of lithologic section units of Hole 310-M0014A

description: Abbreviations: encr=enrcusting, br=braching, rob=robust, tab=tabular, fol=foliaceous, mas=massive, frags/frag=fragments/fragmented, unident=unidentifies, CAB=coral-algal bindstone, ECR=encrustation, MB=microbiolite, HAL=Halimeda, IS=in situ, UK=unknown, gp=group; DEPTH applies to top depth of section unit
DOI: 10.1594/pangaea.908266
title: Stable oxygen isotopes of benthic foraminifera from ODP hole 198-1208A
DOI: 10.1594/pangaea.784855
title: (Appendix 2) Stable isotope ratios of planktonic foraminifers in sediment core POS287-06-1B obtained during Poseidon cruise POS287
DOI: 10.1594/pangaea.786599
title: (Appendix A) Stable carbon and oxygen isotope ratios of foraminifera from IODP Hole 306-U1313
DOI: 10.1594/pangaea.808671
title: Ozone measurements from station Izaña (2013-02)
DOI: 10.1594/pangaea.815450
title: Degradation of [14C]GlcDGD in the marine sediment by monitoring radioactivity in the aqueous and gas phase using liquid scintillation counting (LSC) techniques

description: An experiment was conceived in which we monitored degradation of GlcDGD. Independent of the fate of the [14C]glucosyl headgroup after hydrolysis from the glycerol backbone, the 14C enters the aqueous or gas phase whereas the intact lipid is insoluble and remains in the sediment phase. Total degradation of GlcDGD then is obtained by combining the increase of radioactivity in the aqueous and gaseous phases. We chose two different sediment to perform this experiment. One is from microbially actie surface sediment sampled in February 2010 from the upper tidal flat of the German Wadden Sea near Wremen (53° 38' 0N, 8° 29' 30E). The other one is deep subsurface sediments recovered from northern Cascadia Margin during Integrated Ocean Drilling Program Expedition 311 [site U1326, 138.2 meters below seafloor (mbsf), in situ temperature 20 °C, water depth 1,828 m. We performed both alive and killed control experiments for comparison. Surface and subsurface sediment slurry were incubated in the dark at in situ temperature, 4 °C and 20 °C for 300 d, respectively. The sterilized slurry was stored at 20 °C. All incubations were carried out under N2 headspace to ensure anaerobic conditions. The sampling frequency was high during the first half-month, i.e., after 1, 2, 7, and 14 d; thereafter, the sediment slurry was sampled every 2 months. At each time point, samples were taken in triplicate for radioactivity measurements. After 300 d of incubation, no significant changes of radioactivity in the aqueous phase were detected. This may be the result of either the rapid turnover of released [14C] glucose or the relatively high limit of detection caused by the slight solubility (equivalent to 2% of initial radioactivity) of GlcDGD in water. Therefore, total degradation of GlcDGD in the dataset was calculated by combining radioactivity of DIC, CH4, and CO2, leading to a minimum estimate.
description: Supplement to: Xie, Sitan; Lipp, Julius S; Wegener, Gunter; Ferdelman, Timothy G; Hinrichs, Kai-Uwe (2013): Turnover of microbial lipids in the deep biosphere and growth of benthic archaeal populations. 110(15), 6010-6014
DOI: 10.1594/pangaea.719267
title: Radiosonde measurements from station Bondville (1996-09)

description: Version 2, 2009-06-15; Start location: Lincoln, IL; Distance from radiation site: 82 km; If launch time is exactly 00Z or 12Z, the actual launch time is likely unknown
DOI: 10.1594/pangaea.682292
title: Stable isotope ratios of benthic and planktonic foraminifera from Miocene to Pliocene sediments of DSDP Hole 7-62A on the Eauripik Rise, Pacific Ocean (Table 1)

description: Oxygen and carbon isotope analyses show that the biserial forarniniferal genus Streptochilus, which was originally described from pelagic sediments on the Eauripik Rise and Ontong Java Plateau, lived deep in the upper water column within the oxygen minimum layer. The species of Streptochilus average from 4 to 19% of the foraminiferal assemblages in which benthic forms compose less than 1 or 2%. Specimens of Streptochilus are selectively dissolved when in contact with the bottom water mass. Their rapid evolutionary turnover of less than a few million years and their wide areal distribution in the equatorial Indo-Pacific are indicative of planktonic foraminifera. Aside from usefulness of the species of Streptochilus as stratigraphic indices, these Neogene biserial planktonic foraminifera are potential indices of paleoceanographic stratification.
description: Ages are approximated, Temperature calculation: T (∞C) = 16.5-4.3 * (deltaO18 O3) + 1.4 * (deltaO18 O3)**2, based on the revised paleotemperature equation of Epstein et al. (1953)
description: Supplement to: Resig, Johanna M; Kroopnick, Peter M (1983): Isotopic and distributional evidence of a planktonic habitat for the foraminiferal genus Streptochilus Brönnimann and Resig, 1971. Marine Micropaleontology, 8(3), 235-248
DOI: 10.1594/pangaea.847449
title: (Table 3) Iron speciation in samples from the Spring Ice Edge taken during the SWEDARP 97/98 campaign with S.A. Agulhas

description: Detection window employed in this work: 10 µM TAC.
DOI: 10.1594/pangaea.664414
title: Oceanography at CTD/bottle station IFREMER_1254
DOI: 10.1594/pangaea.847362
title: (Table 3) Identified diatoms in sediments of Terrasovoje, Radok and Beaver lakes, Amery Oasis, East Antarctica

description: P = present, P(S) = only singe valves were observed, P(E) = endemic to the Antarctic region, - = not observed.
DOI: 10.1594/pangaea.710853
title: (Table 3) Stable isotope ratios of Globocassidulina subglobosa from DSDP Hole 32-310
DOI: 10.1594/pangaea.810693
title: (Table 11) Benthic foraminifera in Pliocene sediments of DSDP Hole 90-591

description: Abundances: X = present, A = very abundant, - = absent.
DOI: 10.1594/pangaea.496187
title: Water temperature MBT profiles from cruise U90X089217M_1978
DOI: 10.1594/pangaea.857103
title: Benthisch foraminifera abundances and stable isotopic composition of DSDP Hole 23-219
DOI: 10.1594/pangaea.694257
title: Nutrient concentrations in water samples from the Aegean Sea at Station MAY-1997-IR44
DOI: 10.1594/pangaea.761149
title: Stable carbon and oxygen isotope ratios of Uvigerina mediterranea from the Holocene section of sediments core MD99-2286

description: Sediment depth is void corrected.
DOI: 10.1594/pangaea.727106
title: Ozone measurements from station Izaña (2009-08)
DOI: 10.1594/pangaea.755693
title: Radiosonde measurements from station Izaña (2010-12)

description: Start location: Guimar; Distance from radiation site: 5 km
DOI: 10.1594/pangaea.887941
title: Continuous thermosalinograph oceanography along HEINCKE cruise track HE495
DOI: 10.1594/pangaea.865242
title: Ultra-violet measurements from station Izaña (2016-09)