cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.871003
title: Diatom Si deposition, spring warming duration, and spring mixing duration of sediment core Tiefer-See

description: Monitoring during three meteorologically different spring seasons in 2012, 2013, and 2014 revealed that temperature increase in spring, which influences spring lake mixing duration, markedly affected nutrient availability and diatom deposition in a sediment trap close to the bottom of deep Tiefer See, NE Germany. Deposition of Stephanodiscus taxa and small Cyclotella taxa was much higher after late ice out and a deep, short lake mixing period in spring 2013, compared to that after gradual warming and lengthy lake mixing periods in spring 2012 and 2014, when only brief or marginal ice cover occurred. Availability of dissolved Si and P was 33 and 20 % higher, respectively, in 2013 compared to 2014. The observed relation between high (low) diatom deposition and short (lengthy) mixing duration in spring was applied to varved sediments deposited between AD 1924 and 2008. Low detrital Si content in trapped material and a sediment core enabled use of µXRF-counts of Si as a proxy for diatom silica. The spring mixing duration for 1951-2008 was derived from FLake-model calculations. The spring warming duration related to lake mixing was approximated from air temperatures for 1924-2008 using the dates when daily mean air temperature exceeded 5 °C (start) and 10 °C (end). Diatom silica deposition showed a significant (p &lt; 0.0001) inverse linear relationship with the modeled spring mixing duration (R**2 = 0.36) and the spring warming duration (R**2 = 0.28). In both cases, the relationship is strengthened when data from the period of low diatom production (1987-2005) is excluded (R**2 = 0.59 and R**2 = 0.35). Part of this low diatom production is related to external nutrient supply that favored growth of cyanobacteria at the expense of diatoms. This approach shows that diatom Si deposition was strongly influenced by the availability of light and nutrients, related to the duration of lake mixing and warming in spring, during most of the studied period. The remaining unexplained variability, however, indicates that additional factors influence Si deposition. Further tests in other deep, temperate lakes are necessary to verify if this relation is a common feature and consequently, if diatom Si can be used as a proxy for spring mixing duration in such lakes.
description: Supplement to: Kienel, Ulrike; Kirillin, Georgiy; Brademann, Brian; Plessen, Birgit; Lampe, Reinhard; Brauer, Achim (2016): Effects of spring warming and mixing duration on diatom deposition in deep Tiefer See, NE Germany. Journal of Paleolimnology, 57(1), 37-49
DOI: 10.1594/pangaea.749067
title: Meteorological observations during El Patagon cruise from La Coruña to La Habana started at 1791-04-09
DOI: 10.1594/pangaea.870989
title: Simulated global annual mean precipitation for Pre-Industrial and for 8 ka BP, link to model results in NetCDF format

description: In this data set we publish the simulated global annual mean precipitation over a time period of 50 years retrieved from equilibrium climate simulations for Pre-Industrial (PI) and 8 ka BP (HOL6) and utilized in the publication by Guagnin et al. (2016). The climate data has been produced with COSMOS (ECHAM5/JSBACH/MPIOM/OASIS3), utilized at a resolution of T31 in the atmosphere (19 hybrid sigma-pressure levels) and a resolution of GR30 (bipolar orthogonal curvilinear grid, formal resolution of ~3.0°x1.8°) in the ocean (40 z-coordinate levels). The only differences between the model setups of simulations PI and HOL6 are the settings of the Earth's orbital parameters and the atmosphere's constituents of trace gases, that have been set to the values representative for the respective time slice (see Table 1 of Guagnin et al. (2016) for details).
description: Supplement to: Guagnin, Maria; Jennings, Richard; Eager, Heidi; Parton, Ash; Stimpson, Christopher; Stepanek, Christian; Pfeiffer, Madlene; Groucutt, Huw S; Drake, Nick A; Alsharekh, Abdullah; Petraglia, Michael D (2016): Rock art imagery as a proxy for Holocene environmental change: A view from Shuwaymis, NW Saudi Arabia. The Holocene, 26(11), 1822-1834
DOI: 10.1594/pangaea.749475
title: Meteorological observations during GRAMPUS cruise from St. Thomas to Spithead started at 1784-06-08
DOI: 10.1594/pangaea.769840
title: Data base on pelagic ciliates grazing and growth rate as a function of size, prey size and type compiled from the literature

description: Microzooplankton (the 20 to 200 µm size class of zooplankton) is recognised as an important part of marine pelagic ecosystems. In terms of biomass and abundance pelagic ciliates are one of the important groups of organism in microzooplankton. However, their rates - grazing and growth - , feeding behaviour and prey preferences are poorly known and understood. A set of data was assembled in order to derive a better understanding of pelagic ciliates rates, in response to parameters such as prey concentration, prey type (size and species), temperature and their own size. With these objectives, literature was searched for laboratory experiments with information on one or more of these parameters effect studied. The criteria for selection and inclusion in the database included:(i) controlled laboratory experiment with a known ciliates feeding on a known prey;(ii) presence of ancillary information about experimental conditions, used organisms - cell volume, cell dimensions, and carbon content. Rates and ancillary information were measured in units that meet the experimenter need, creating a need to harmonize the data units after collection. In addition different units can link to different mechanisms (carbon to nutritive quality of the prey, volume to size limits).As a result, grazing rates are thus available as pg C/(ciliate*h), µm**3/(ciliate*h) and prey cell/(ciliate*h); clearance rate was calculated if not given and growth rate is expressed as the growth rate per day.
description: The "Download dataset" link provides a zip-archiv containing the database, archived in 4 different formats: Excel 97-2004 (*.xls, original format as provided by author), Office Open XML/Excel 2011 (*.xlxs), tab-delimited text/ascii (*.txt), and comma separated values (*.csv).This work was funded by Eur-Oceans program, project number WP3.2-SYS-1092.
DOI: 10.1594/pangaea.769842
title: Data base on heterotrophic dinoflagellates grazing and growth rate as a function of size, prey size and type compiled from the literature

description: Microzooplankton (the 20 to 200 µm size class of zooplankton) is recognised as an important part of marine pelagic ecosystems. In terms of biomass and abundance heterotrophic dinoflagellates are one of the important groups of organism in microzooplankton. However, their rates - grazing and growth - , feeding behaviour and prey preferences are poorly known and understood. A set of data was assembled in order to derive a better understanding of heterotrophic dinoflagellates rates, in response to parameters such as prey concentration, prey type (size and species), temperature and their own size. With these objectives, literature was searched for laboratory experiments with information on one or more of these parameters effect studied. The criteria for selection and inclusion in the database included:(i) controlled laboratory experiment with a known dinoflagellate feeding on a known prey;(ii) presence of ancillary information about experimental conditions, used organisms - cell volume, cell dimensions, and carbon content. Rates and ancillary information were measured in units that meet the experimenter need, creating a need to harmonize the data units after collection. In addition different units can link to different mechanisms (carbon to nutritive quality of the prey, volume to size limits).As a result, grazing rates are thus available as pg C dinoflagellate-1 h-1, µm3 dinoflagellate-1 h-1 and prey cell dinoflagellate-1 h-1; clearance rate was calculated if not given and growth rate is expressed as the growth rate per day.
description: The "Download dataset" link provides a zip-archiv containing the database, archived in 4 different formats: Excel 97-2004 (*.xls, original format as provided by author), Office Open XML/Excel 2011 (*.xlxs), tab-delimited text/ascii (*.txt), and comma separated values (*.csv).This work was funded by Eur-Oceans program, project number WP3.2-SYS-1092.
DOI: 10.1594/pangaea.830942
title: Satellite-based lake surface water temperatures from Lake_Thun, 1989-2013

description: Lake Surface Water Temperature (LSWT) has been extracted from a 3x3 pixel array at the center of the lake. See "Event(s)" for Lake/pixel co-ordinates.
DOI: 10.1594/pangaea.871072
title: Swath sonar multibeam bathymetry during HEINCKE cruise HE413 with links to raw data files of bathymetry and water column information

description: Data acquisition was performed using a KONGSBERG EM710 multibeam sonar system. Raw data are delivered within Simrad current multibeam vendor format. SIMRAD raw data can be processed e.g. with the software packages CARIS HIPS/SIPS, Caraibes or with the open source software package MB-System (http://www.ldeo.columbia.edu/res/pi/MB-System/).
DOI: 10.1594/pangaea.770976
title: Meteorological records from the Vernagtferner Basin - Vernagtbach station, for the year 1983
DOI: 10.1594/pangaea.911791
title: Meteorological synoptical observations from station Tateno (2019-11)
DOI: 10.1594/pangaea.747873
title: Meteorological observations during CERES cruise from Batavia to Texel started at 1848-09-23
DOI: 10.1594/pangaea.496072
title: Water temperature MBT profiles from cruise U90X089086M_1987
DOI: 10.1594/pangaea.749959
title: Meteorological observations during KENT cruise from Madagasgar to Madras started at 1754-08-08
DOI: 10.1594/pangaea.496256
title: Water temperature MBT profiles from cruise U90X089290M_1984
DOI: 10.1594/pangaea.839462
title: Elevation zones Kesselwandferner, Ötztal Alps, Austria, 2011/2012
DOI: 10.1594/pangaea.770007
title: (Table 1) Chemical and isotopic composition of pore fluids in cores TGC-1 and TGC-6

description: The role of sediment diagenesis in the marine cycles of Li and B is poorly understood. Because Li and B are easily mobilized during burial and are consumed in authigenic clay mineral formation, their abundance in marine pore waters varies considerably. Exchange with the overlying ocean through diffusive fluxes should thus be common. Nevertheless, only a minor Li sink associated with the low-temperature alteration of volcanic ash has been observed. We describe a low-temperature diagenetic environment in the Black Sea dominated by the alteration of detrital plagioclase feldspars. Fluids expelled from the Odessa mud volcano in the Sorokin Trough originate from shallow (~100–400 m deep) sediments which are poor in volcanic materials but rich in anorthite. These fluids are depleted in Na+, K+, Li+, B, and 18O and enriched in Ca2+ and Sr2+, indicating that anorthite is dissolving and authigenic clays are forming. Using a simple chemical model, we calculate the pH and the partial pressure of CO2 (PCO2) in fluids associated with this alteration process. Our results show that the pH of these fluids is up to 1.5 pH units lower than in most deep marine sediments and that PCO2 levels are up to several hundred times higher than in the atmosphere. These conditions are similar to those which favor the weathering of silicate minerals in subaerial soil environments. We propose that in Black Sea sediments enhanced organic matter preservation favors CO2 production through methanogenesis and results in a low pore water pH, compared to most deep sea sediments. As a result, silicate mineral weathering, which is a sluggish process in most marine diagenetic environments, proceeds rapidly in Black Sea sediments. There is a potential for organic matter-rich continental shelf environments to host this type of diagenesis. Should such environments be widespread, this new Li and B sink could help balance the marine Li and Li isotope budgets but would imply an apparent imbalance in the B cycle.
description: Supplement to: Aloisi, Giovanni; Wallmann, Klaus; Drews, Manuela; Bohrmann, Gerhard (2004): Evidence for the submarine weathering of silicate minerals in Black Sea sediments: possible implications for the marine Li and B cycles. Geochemistry, Geophysics, Geosystems, 5(1), Q04007
DOI: 10.1594/pangaea.895007
title: Sea surface temperature measurements during typhoon Morakot in 2009 at Linshanbi Tide Station
DOI: 10.1594/pangaea.920906
title: SPM in situ data in Patos Lagoon Estuary - 'Laboratório de Hidroquímica' (1989-1991)

description: The oceanographic cruises were carried out in the Patos Lagoon estuarine area by the 'Laboratório de Hidroquímica', at FURG. This dataset is composed of groups of data made available by Niencheski and Windom (1994; doi:10.1016/0048-9697(94)90004-3) and Baumgarten et al. (2001). The first group of data were obtained in cruises carried out from 1989 to 1991. Water samples were collected at 20 fixed stations along the estuary and at 1 fixed station in São Gonçalo Channel. At each station, both surface and bottom water samples were collected using Van Dorn bottles, and placed into clean plastic bottles. Analysis of SPM followed the procedures described in Aminot and Chaussepied (Aminot, A. and Chaussepied, M.: Manuel des Analyses Chimiques en milieu Matin, CNEXO, Bres, p. 396, 1983.). Nutrients, ammonia, nitrite, nitrate, phosphate and silicate were also sampled by the authors but data is not assessed here. Baumgarten et al. (2001) presented data collected in a shallow and small bay (Saco da Mangueira) located in Patos Lagoon estuary. In this area, 3 sites were sampled monthly for 15 months (April 1994 to September 1995). The sites location was distributed in areas receiving high loads of nutrients from different sources: INCA, Arroio Simão, and Fábrica de Fertilizantes. Water sampling on the surface and bottom was executed using a Van Dorn-type bottle and SPM concentrations were estimated according to the protocols latter published by Baumgarten et al. (Baumgarten, M., Rocha, J., and Niencheski, L.: Manual de Análises em Oceanografia Química, FURG, Rio Grande, Brazil, 1996)
DOI: 10.1594/pangaea.778230
title: Reflectance spectroscopy and colorimetry from IODP Hole 317-U1352B

description: Geocode = Depth CSF-A (m).Technical Note 26 Chapter 7: http://www-odp.tamu.edu/publications/tnotes/tn26/CHAP7.PDF
DOI: 10.15468/dl.6ts7ar
title: Occurrence Download

description: A dataset containing 27951 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Sphyrna lewini (Griffith & Smith, 1834)"
 ]
}

 The dataset includes 27951 records from 256 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0031302-240626123714530/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.1594/pangaea.884830
title: Pollen profile IFRIOUD, Ifri Oudadane, Morocco

description: This dataset was archived on 2018-01-12 from the EPD database (http://www.europeanpollendatabase.net). Date analysed: 2013
DOI: 10.1594/pangaea.778232
title: (Table 3) Age of acoustic basement and observed heat flow for ODP Leg 127/128 sites

description: AGE [ka BP] is biostratigraphic age.
DOI: 10.1594/pangaea.750401
title: Meteorological observations during Le Vicomte de Choiseuil cruise from Lile Daix to St. Pierre started at 1771-05-07
DOI: 10.1594/pangaea.770304
title: (Table 1) Oxygen and carbon isotope ratios of benthic foraminifera of DSDP Holes 12-119 and 48-401

description: We present here oxygen and carbon isotopic records of Eocene to Oligocene benthic foraminifera from two Bay of Biscay Deep Sea Drilling Project (DSDP) sites (119 and 401). d18O of benthic foraminifera increases 1.9 per mil from a middle Eocene minimum (Zones P10-P11) to an earliest Oligocene maximum (Zone NP21). Approximately 1.4 per mil of the increase in benthic foraminiferal d18O occurs during the late Eocene to earliest Oligocene (Zones P15/16-NP21). Previous results from other North Atlantic DSDP sites (400A and 398) have significantly lower d18O values of benthic foraminifera, some by as much as 2 per mil (Vergnaud-Grazzini et al., 1978; 1989, doi:10.2973/dsdp.proc.48.119.1979; Vergnaud-Grazzini, 1979, doi:10.2973/dsdp.proc.47-2.117.1979 ). We believe that these differences result from diagenetic alteration of the sediments in the deeper-buried Sites 400A and 398.
description: Nannoplankton zonations for Site 119 after Perch-Nielson (1972, doi:10.2973/dsdp.proc.12.115.1972) and M.-P. Aubry, personal communication. Foraminiferal zonations for Site 119 after Berggren (1972, doi:10.2973/dsdp.proc.12.114.1972) and K.G.Miller work in preparation and for Site 401 after Krasheninnikov (1979, doi:10.2973/dsdp.proc.48.117.1979). Discrepancies in ages resulting from differences between zonal age and interpolated ages obtained by assuming constant sedimentation rate.
description: Supplement to: Miller, Kenneth G; Curry, William B (1982): Eocene to Oligocene benthic foraminiferal isotopic record in the Bay of Biscay. Nature, 296(5855), 347-350
DOI: 10.1594/pangaea.778239
title: Vane shear strength measurements from IODP Hole 317-U1352B

description: Geocode = Depth CSF-A (m).Technical Note 26 Chapter 9: http://www-odp.tamu.edu/publications/tnotes/tn26/CHAP9.PDF
DOI: 10.1594/pangaea.827073
title: Basic measurements of radiation at station Billings (2010-01)
DOI: 10.1594/pangaea.695071
title: Concentrations of total organic carbon in water of the Ionian Sea at Station SEPT-2000-IRI49
DOI: 10.1594/pangaea.770015
title: (Table 1) Cd/Ca and Mn/Ca ratios of benthic foraminifera from DSDP Hole 30-289

description: The late Miocene carbon shift (~6.2 Myr) -a 0.5-1.0 per mil, d13C decrease in benthic and planktonic foraminifera- has been ascribed to changes in global inventory, deep-ocean circulation, and/or productivity. Cadmium, d13C, and nutrients in the ocean are linked; comparison of d13C and Cd/Ca yields circulation and chemical inventory information not available from either alone. We determined Cd/Ca ratios in late Miocene benthic foraminifera from DSDP Site 289. Results include: (1) late Miocene Pacific Cd/Ca values fall between those of late Quaternary Atlantic and Pacific benthic foraminifera; (2) there are no systematic Cd/Ca offsets between Cibicidoides kullenbergi, Cibicidoides wuellerstorfi and Uvigerina spp.; and (3) there is a very slight Cd/Ca change coincident with d13C. Cd/Ca, slightly higher in younger, isotopically lighter samples, exhibits a smaller increase than predicted if circulation were the primary cause of the carbon shift. The carbon shift may have been due to a long-term shift in the steady-state carbon isotope input or to a change in the sedimentation of organic carbon relative to calcium carbonate.
description: Supplement to: Delaney, Margaret Lois; Boyle, Edward A (1987): Cd/Ca in late Miocene benthic foraminifera and changes in the global organic carbon budget. Nature, 330(6144), 156-159
DOI: 10.1594/pangaea.688467
title: (Table 1) Stable carbon and oxygen isotope ratios of Uvigerina sp. in Late Miocene and Early Pliocene sediments of the Blind River section, New Zealand

description: Section hight is Tickness (m). Isotopic results are represented with respect to the powder B-1.
DOI: 10.1594/pangaea.896035
title: Arsenic content of sediment samples in two lakes in the Puget Sound lowland (2016-2018)
DOI: 10.1594/pangaea.768327
title: (Table 2a) Total phytoplankton biomass in the surface water layer and contributions of dominant species to its value in the Western Arctic in July-August 2003
DOI: 10.1594/pangaea.498950
title: Physical oceanography from BT during cruise U90X008113B_1988
DOI: 10.1594/pangaea.778241
title: Downhole temperature measurement from IODP Hole 317-U1352B

description: Geocode = Depth CSF-A (m)
DOI: 10.1594/pangaea.770021
title: (Table 1) Lead isotopic compositions of basalts from DSDP Hole 81-553

description: The passive continental margin south-west of Rockall Plateau is characterized by a thick sequence of oceanward-dipping seismic reflectors. During Leg 81 of the Deep Sea Drilling Project, these reflectors were sampled at Site 553 and proved to consist almost exclusively of basalt. Here we present lead isotope data which indicate that these basalts may have been contaminated by ancient uranium-depleted continental crust, or alternatively, derived from a sub-continental lithospheric mantle source. In either case, the implications are that the basalts of the south-west Rockall Plateau formed by eruption through and onto continental basement, not by 'subaerial seafloor spreading'. This conclusion is in accord with gravity models of the area, which predict stretched continental crust beneath the dipping reflector sequence.
description: Supplement to: Morton, Andrew C; Taylor, Paul N (1987): Lead isotope evidence for the structure of the Rockall dipping-reflector passive margin. Nature, 326(6111), 381-383
DOI: 10.1594/pangaea.499315
title: Physical oceanography from BT during cruise U90XX00392B_1972
DOI: 10.1594/pangaea.893189
title: Integrated water vapor profiles at Thule High Arctic Atmospheric Observatory, YOPP SOP winter 2018 (February 2018)
DOI: 10.1594/pangaea.498886
title: Physical oceanography from BT during cruise U90X008007B_1975
DOI: 10.1594/pangaea.769609
title: Primary production within the euphotic layer of the Norwegian Sea in July 1997: measurements by different methods

description: Results of primary production measurements obtained by different methods are presented. These methods are radiocarbon and oxygen modifications of the flask method, as well as fluorometric procedure with a PrimProd submersible probing fluorometer (produced at the Biological Department, Moscow State University). The research was carried out during a complex expedition aboard R/V Akademik Boris Petrov to the Norwegian Sea in July, 1977. Distributions of primary production values measured by different methods were correlated with other oceanographic data. Then a comparison of obtained values by the above-mentioned methods was performed.
description: Supplement to: Sapozhnikov, Victor V; Goryunova, V B; Levenko, B A; Dulova, L E; Antal, T K; Matorin, D N (2000): A comparative study of the primary production in the Norwegian Sea by different methods. Translated from Okeanologiya, 2000, 40(2), 234-240, Oceanology, 40(2), 216-221
DOI: 10.1594/pangaea.691109
title: Nutrient concentrations in water samples collected at Station DEC94-JAN95-GN3619940280400360 in the Aegean Sea
DOI: 10.1594/pangaea.898419
title: Radiosonde measurements from station Eastern North Atlantic (2015-03)

description: Launches may be at irregular time intervals
DOI: 10.1594/pangaea.832824
title: Continuous meteorological observations at Redcliff station, Moreton Bay, Australia, in 2012
DOI: 10.1594/pangaea.498476
title: Physical oceanography from BT during cruise U90KN08033B_1976
DOI: 10.1594/pangaea.913969
title: Ultra-violet measurements from station Payerne (2020-02)
DOI: 10.1594/pangaea.755633
title: (Table 2e) Concentrations of particulate protein and organic phosphorus combined with mesoplankton fraction in waters of the East Pacific at Station Agat-3580
DOI: 10.1594/pangaea.677917
title: Expanded measurements from Neumayer Station (1993-12)

description: 99999: No clouds detected
DOI: 10.1594/pangaea.763700
title: (Table 2) Major element contents in concretions and bottom sediments from the Kara Sea
DOI: 10.1594/pangaea.769789
title: Visual core description and core images of Hole 325-M0038A
DOI: 10.1594/pangaea.769994
title: Physical properties of Hole 325-M0035A
DOI: 10.1594/pangaea.778217
title: (Table 4) Permeabilities for ODP Holes 128-798B and 128-799A