cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.928509
title: Near bottom current velocity and water temperature and associated surface meteorological measurements in the Vazella pourtalesii glass sponge grounds of the Scotian Shelf (2017-2018)

description: The Scotian Shelf harbors unique aggregations of the glass sponge Vazella pourtalesii providing an important habitat for benthic and pelagic fauna. Recent studies have shown that these sponge grounds have persisted in the face of strong inter-annual and multi-decadal variability in temperature and salinity. However, little is known of the environmental characteristics on hourly-seasonal time scales. This study presents the first hydrodynamic observations and associated (food) particle supply mechanisms for the Vazella sponge grounds, highlighting the influence of natural variability in environmental conditions on sponge growth and resilience. Near-bottom environmental conditions were characterized by high temporal resolution data collected with a benthic lander, deployed during a period of 10-months in the Sambro Bank Sponge Conservation Area. The lander was equipped with temperature and oxygen sensors, a current meter, a sediment trap and a video camera. In addition, water column profiles of temperature and salinity were recorded along a transect, conducted in a gradient from high to lower sponge presence probability. Over the course of the lander deployment, temperature fluctuated between 8.8-12 °C with an average of 10.6 °C ± 0.4 °C. The water contained on average 6.3 mg/l oxygen and near bottom current speed was on average 0.12 m/s, with peaks up to 0.47 m/s. Semi-diurnal tidal flow was observed to result in constant resuspension of particulate matter in the benthic boundary layer. Surface storm events episodically caused extremely turbid conditions on the seafloor that persisted for several days, with particles being resuspended to more than 13 m above the seabed. The carbon flux in the near-bottom sediment trap peaked during storm events and also after a spring bloom in April, when fresh phytodetritus was observed in the bottom boundary layer. While resuspension events can represent a major stressor for sponges, limiting their filtration capability and remobilizing them, episodes of strong currents and lateral particle transport likely play an important role in food supply and the replenishment of nutrients and oxygen. Our results contextualize human-induced threats such as bottom fishing and climate change by providing more knowledge of the natural environmental conditions under which sponge grounds persist.
DOI: 10.1594/pangaea.903247
title: Weather station (Meteo Sarti Vantage Pro2) measurements collected at the OBSEA shore station (UPC) during April, 2015
DOI: 10.1594/pangaea.904757
title: (Supplement 08) Dry deposition rates at Paphos, Cyprus, during March-April 2017
DOI: 10.1594/pangaea.942615
title: Comparison of the main steps detected by Hodell and Channell (2016) from U1308 marine records with those deduced from the Recurrence Plot of the benthic δ18O and bulk carbonate δ18O data of the same record

description: Comparison of the main steps detected by Hodell and Channell (2016) from U1308 marine record with those deduced from the Recurrence Plot of the benthic δ18O and bulk carbonate δ18O data of the same record.
description: RR prominence significance as in RR_transitions.txt (doi:10.1594/PANGAEA.942620).
DOI: 10.1594/pangaea.942622
title: Thresholds identified in the recurrence plot of NGRIP δ18O record and their correspondence in the marine isotope stratigraphy of the last climate cycle stratigraphy

description: Thresholds identified in the recurrence plot of NGRIP δ18O record and their correspondence in the marine isotope stratigraphy of the last climate cycle stratigraphy (Bassinot et al., 1994; Lisiecki and Raymo, 2005).
description: RR prominence significance as in RR_transitions.txt (doi:10.1594/PANGAEA.942620).
DOI: 10.1594/pangaea.946763
title: 10 daily surface measurements over 90m transect, SSA, Density and Accumulation, from EastGRIP summer (May-August) of 2016-2019

description: Dataset containing surface snow measurements of snow specific surface area (SSA), snow density and snow accumulation. Surface samples were taken from the surface 2.5cm of snow. SSA measurements were determined using an Ice Cube measuring device (Zuanon, 2013). Snow density was measured from the SSA samples with a fixed volume. Snow accumulation describes the change in surface height at each sample site. All measured parameters have 10 daily samples taken at 10m intervals over a 90m transect. Sampling was carried out daily between May and August of 2016-2019, at approximately 24hr time intervals. All measurements were taken at the East Greenland Ice Core Project site (EastGRIP) situated in the accumulation zone of the Greenland Ice Sheet.
DOI: 10.1594/pangaea.948413
title: Gene expression by the cold-water octocoral Dentomuricea aff. meteor during an ex-situ experiment testing the effects of mining-generated sediment plumes

description: We report the results of an aquaria-based experiment testing the effects of suspended particles generated during potential mining activities, on a common habitat-building coral species in the Azores, Dentomuricea aff. meteor. Coral fragments were maintained in 10-L aquaria and exposed to three experimental treatments for a period of four weeks at the DeepSeaLab aquaria facilities (Okeanos-University of the Azores): (1) control conditions (no added sediments); (2) suspended polymetallic sulphide (PMS) particles; (3) suspended quartz particles. Gene expression profiles in D. aff. meteor were used to evaluate the physiological pathways involved in the response to exposure to PMS and quartz particles. Coral fragments were collected from each treatment at times 0, 3, and 13 days and for the control and quartz treatments also at time 27 days. The study targeted genes involved in cellular stress and antioxidant reaction system (heat shock protein, superoxide dismutase, ferritin), cell structure/integrity (α-carbonic anhydrase, receptor-type protein tyrosine phosphatase) and immune responses (toll-like receptor, lysozyme, rel homology domain, ferritin).
description: Gene expression profiles in D. aff. meteor exposed to the different treatmentsHKG: House Keeping Genes (18S and β-actin)RHD: rel homology domain TLR: toll-like receptor HSP70: heat shock protein RP Tyr-PH: receptor-type protein tyrosine phosphatase SOD: superoxide dismutaseCarb Anhy: α-carbonic anhydraseCt = cycle threshold (nº of cycles in an RT-PCR required for the signal to exceed the background level)Relative gene expression of the gene = Relative quantity gene / Geometric mean of the relative quantities of each housekeeping gene (=RQ gene/Geomean RQ HKGs)Relative quantity (RQ) = (efficiency of the gene)^ΔCT
DOI: 10.1594/pangaea.951200
title: KOSMOS mesocosm experiment Gran Canaria 2019 on testing the effect of nutrient composition (Si:N) during artificial upwelling: environment, nutrients and carbonate chemistry

description: Physio-chemical data from the mesocosms experiment conducted in the Canary Islands in autumn 2019. Values are depth-integrated averages in (mostly) 2-days intervals over the course of 33 days. The upwelling treatment started on day 6. Oxygen (O2), salinity, temperature, photosynthetically active radiation (PAR) and pH were measured from 0.3 to 2.5 m depth via three replicate CTD casts. Dissolved inorganic carbon (DIC) and the inorganic nutrients nitrite (NO2), combined nitrate and nitrite (NO3 + NO2), ammonia (NH4), phosphate (PO4) and silicate (Si(OH)4) were measured in triplicates on depth integrated water samples from 0 to 2.5 m depth. Total alkalinity (TA) was measured from the same water samples but in duplicates. Then, pCO2 and nitrate was calculated. Methodological details in Goldenberg et al. (doi:10.3389/fmars.2022.1015188).
description: The value marked with ? is an outlier likely caused by a measurement error. Exclude from analysis or use with care.
DOI: 10.1594/pangaea.950699
title: Cold-water octocoral Viminella flagellum respiration rates during an acute Cu exposure

description: Herein we report the respiration rates (O2 consumption) of the cold-water coral Viminella flagellum exposed to acute Cu concentrations. In a lab experiment, sixty nubbins of V. flagellum were distributed in six aquaria of 8 L (ten nubbins per aquarium) of each Cu solution (0 (control); 60; 150; 250; 450 and 600 μg/L) for 96 h. After this period, four nubbins from each Cu treatment, selected randomly, were incubated individually for 6 h in glass chambers filled with ca. 110 mL of 0.2 μm pre-filtered seawater, with the respective Cu dilutions (4 chambers per Cu concentration). The incubation period was set to 6 h to record changes in O2 consumption without exposing corals to oxygen levels below 80 % (air saturation, a.s.). During the incubation period, dissolved O2 (μmol/L) depletion rates were recorded every 30 min and corrected by the corresponding rates/variations in chambers without corals. Coral respiration rates were normalized to the coral surface area and time. Results are presented by µmol of O2 consumption per m2 per h.
description: Treatment [Cu] µg/L: [0]: Control, no copper addition[60]: Cu concentration of 60 μg/L[150]: Cu concentration of 150 μg/L[250]: Cu concentration of 250 μg/L[450]: Cu concentration of 450 μg/L[600]: Cu concentration of 600 μg/L
DOI: 10.1594/pangaea.935012
title: Inorganic and organic hydrochemistry of lakes and ponds in continuous permafrost landscapes in the western Canadian Arctic

description: Between 2006 and 2015 inorganic and organic hydrochemical parameters and stable water isotope characteristics were measured in lakes and ponds in continuous permafrost landscapes in the western Canadian Arctic. The dataset contains 66 individual samples from 47 distinct water bodies.Lakes and ponds were sampled in an area covering the following geographical boundaries:North: from 68.8° to 69.7°West: from -141.0° to -138.5°Water bodies are all located in the zone of continuous permafrost. The studied water bodies are located on the mainland coast of the Yukon, Canada and on Herschel Island – Qikiqtaruk off the Yukon coast.Hydrochemical data comprises:• basic parameters such as pH and electrical conductivity• major anions• major cations• dissolved organic carbon concentration• stable water isotopes
DOI: 10.1594/pangaea.932716
title: Benthic foraminiferal data of sediment core GeoB16320-2, Campeche Province
DOI: 10.1594/pangaea.951417
title: KOSMOS mesocosm experiment Gran Canaria 2019 on testing the effect of nutrient composition (Si:N) during artificial upwelling: suspended particulate matter

description: Suspended particulate matter and elemental stoichiometry data from the mesocosms experiment conducted in the Canary Islands in autumn 2019. Depth-integrated (0-2.5m) water samples were taken in 2-days intervals over the course of 33 days. There was no evidence for significant amounts of particulate inorganic carbon, and therefore, POC and TPC measurements were averaged and interpreted as POC. This “POC TPC average” should be used for further analysis. The upwelling treatment started on day 6. Methodological details in Goldenberg et al. (doi: 10.3389/fmars.2022.1015188).
description: The value marked with ? is an outlier likely caused by a measurement error. Exclude from analysis or use with care.
DOI: 10.1594/pangaea.932737
title: Benthic foraminifera accumulation rate of sediment core GeoB1813-1
DOI: 10.1594/pangaea.902400
title: CTD (SBE 16 PLUS V2) measurements collected at the OBSEA underwater observatory during July, 2011
DOI: 10.1594/pangaea.902470
title: CTD (SBE 16 PLUS V2) measurements collected at the OBSEA underwater observatory during April, 2013
DOI: 10.1594/pangaea.902473
title: CTD (SBE 37 SMP) measurements collected at the OBSEA underwater observatory during April, 2013
DOI: 10.1594/pangaea.902437
title: CTD (SBE 16 PLUS V2) measurements collected at the OBSEA underwater observatory during February, 2012
DOI: 10.1594/pangaea.902438
title: CTD (SBE 16 PLUS V2) measurements collected at the OBSEA underwater observatory during March, 2012
DOI: 10.1594/pangaea.902681
title: CTD (SBE 37 SMP) measurements collected at the OBSEA underwater observatory during August, 2017
DOI: 10.1594/pangaea.902678
title: CTD (SBE 37 SMP) measurements collected at the OBSEA underwater observatory during May, 2017
DOI: 10.1594/pangaea.968464
title: Abiotic conditions from the local environment of Arctic kelp populations on the west coast of Svalbard, Norway

description: We assessed how Arctic kelp populations react to their local in situ environment in August 2022. Therefore, we sampled Saccharina latissima sporophytes from eight populations at several latitudes on the west coast of Svalbard, Norway, and correlated these results to the abiotic conditions they experienced. Data was smoothed by the mean for every meter interval. We measured the spectrally resolved underwater light climate from 400-700 nm with a RAMSES-ACC-UV/VIS radiometer (TriOS Optical Sensor, Oldenburg, Germany) from the surface until the bottom was reached (max. 10 m). The photosynthetically active irradiance (PAR) was calculated by integrating the irradiance. The light attenuation coefficient (Kd) was calculated between the surface and 3 m water depth. The spectrum peak (nm) on 3 m water depth was defined as the wavelength with the maximum irradiance transmission through the water column.
DOI: 10.1594/pangaea.968466
title: Analysis of arctic kelp populations on the west coast of Svalbard, Norway

description: We assessed how Arctic kelp populations react to their local in situ environment in August 2022. Therefore, we sampled Saccharina latissima sporophytes from eight populations at several latitudes on the west coast of Svalbard, Norway, and correlated these results to the abiotic conditions they experienced. At each sampling station, similar sized sporophytes (n=5) were collected from 5±2 m water depth using a plant rake (Plant rake 19.000, acc. to Sigurd Olsen, KC Denmark, Silkeborg, Denmark). Subsamples were taken from each sporophyte by cutting discs, 2 cm² in diameter, from the meristem, within two hours of sampling. All samples were dried in silica gel, which was replaced regularly. Pigment analysis was analysed with a High-Performance Liquid Chromatograph (HPLC, LaChromElite® system, L-2200 autosampler (chilled), DA-detetctor L-2450; VWR-Hitachi International GmbH, Darmstadt, Germany). Antioxidant activity (AOA) was determined following the ABTS·+ (2,2'-azino-bis-3-ethylbenzthiazoline-6-sulphonic acid, 7 mM in biDest H2O) assay. Total carbon and total nitrogen content were analysed with an elemental analyser (Euro EA 3000 Elemental Analyser, EuroVector S.P.A., Milano, Italy).
DOI: 10.1594/pangaea.973440
title: Friction and friction coefficients measured on core samples from IODP Hole 370-C0023A
DOI: 10.1594/pangaea.973441
title: Rate and state friction parameters measured on core samples from IODP Hole 370-C0023A
DOI: 10.1594/pangaea.909260
title: Porewater geochemistry of sediment core POS518/1_11-1 (GC2)
DOI: 10.1594/pangaea.909268
title: Particulate geochemistry of sediment core POS518/1_13-1_PC29 (13ROV1 PC29)
DOI: 10.1594/pangaea.909259
title: Porewater geochemistry of sediment core POS518/1_10-1 (GC1)
DOI: 10.1594/pangaea.909475
title: Porewater geochemistry of sediment core POS518/2_14-2 (GC3)
DOI: 10.1594/pangaea.909261
title: Porewater geochemistry of sediment core POS518/1_12-1 (GC3)
DOI: 10.1594/pangaea.909262
title: Porewater geochemistry of sediment core POS518/1_13-1_PC29 (13ROV1 PC29)
DOI: 10.1594/pangaea.909263
title: Porewater geochemistry of sediment core POS518/1_20-1 (GC4)
DOI: 10.1594/pangaea.909476
title: Porewater geochemistry of sediment core POS518/2_18-1 (GC4)
DOI: 10.1594/pangaea.903150
title: Weather station (Meteo Sarti Vantage Pro2) measurements collected at the OBSEA shore station (UPC) during November, 2011
DOI: 10.1594/pangaea.909583
title: Particulate geochemistry of sediment core POS518/2_14-2 (GC3)
DOI: 10.1594/pangaea.903136
title: Weather station (Meteo Sarti Vantage Pro2) measurements collected at the OBSEA shore station (UPC) during February, 2011
DOI: 10.1594/pangaea.923110
title: Simulated mean climate response to Caspian Sea area change using the Community Earth System Model (CESM1.2.2)

description: The Caspian Sea (CS) is the largest inland lake in the world. Large variations in sea level and surface area occurred in the past and are projected for the future. The potential impacts on regional and large-scale hydroclimate are not well understood. Here, we examine the impact of CS area on climate within its catchment and in the wider northern hemisphere. The Community Earth System Model (CESM1.2.2) is used to simulate the climate of four scenarios: (1) larger than present CS area, (2) current area, (3) smaller than present area, and (4) no-CS scenario. The results reveal large changes in the regional atmospheric water budget. Evaporation (E) over the sea increases with increasing area, while precipitation (P) increases over the south-west CS with increasing area. P-E over the CS catchment decreases as CS surface area increases, indicating a dominant negative lake-evaporation feedback. A larger CS area reduces summer surface air temperatures and increases winter temperatures. The impacts extend eastwards, where summer precipitation is enhanced over central Asia and the north-western Pacific region experiences warming with sea ice reduction in winter. Our results also indicate a weakening of the 500-hPa troughs over the northern Pacific with larger CS area. Lastly, we find a thermal response triggers a southward shift of the jet stream in the upper troposphere during summer. Our findings establish that changing CS area results in climate impacts of such scope that CS area variation should be considered for incorporation into climate model simulations, including palaeo and future scenarios.
description: Koriche, Sifan A. and Nandini-Weiss, Sri D share joint first authorship (Contributed equally to this work)
DOI: 10.1594/pangaea.903147
title: Weather station (Meteo Buoy WeatherStation Instrument 150WX) measurements collected at the OBSEA underwater observatory buoy during October, 2011
DOI: 10.1594/pangaea.903155
title: Weather station (Meteo Buoy WeatherStation Instrument 150WX) measurements collected at the OBSEA underwater observatory buoy during January, 2012
DOI: 10.1594/pangaea.909584
title: Particulate geochemistry of sediment core POS518/2_18-1 (GC4)
DOI: 10.1594/pangaea.909477
title: Porewater geochemistry of sediment core POS518/2_2-1 (MUC1)
DOI: 10.1594/pangaea.909478
title: Porewater geochemistry of sediment core POS518/2_3-1 (BIGO1-1)
DOI: 10.1594/pangaea.909479
title: Porewater geochemistry of sediment core POS518/2_5-1 (MUC2)
DOI: 10.1594/pangaea.903223
title: Weather station (Meteo Sarti Vantage Pro2) measurements collected at the OBSEA shore station (UPC) during June, 2014
DOI: 10.1594/pangaea.909480
title: Porewater geochemistry of sediment core POS518/2_8-1 (BIGO1-2)
DOI: 10.1594/pangaea.903224
title: Weather station (Meteo Buoy WeatherStation Instrument 150WX) measurements collected at the OBSEA underwater observatory buoy during July, 2014
DOI: 10.1594/pangaea.968642
title: CTD data from the local environment of Arctic kelp populations on the west coast of Svalbard, Norway

description: We assessed how Arctic kelp populations react to their local in situ environment in August 2022. Therefore, we sampled Saccharina latissima sporophytes from eight populations at several latitudes on the west coast of Svalbard, Norway, and correlated these results to the abiotic conditions they experienced. CTD profiles were run, using the downcast profile of an RBR Maestro3 (RBR Ltd., Ottawa, Canada). Temperature (°C), salinity (SA), and turbidity (NTU) of the water column were measured. The CTD was lowered at a speed of approx. 1 m/s. Data was smoothed by the mean for every meter interval.
DOI: 10.1594/pangaea.903274
title: Weather station (Meteo Buoy WeatherStation Instrument 150WX) measurements collected at the OBSEA underwater observatory buoy during November, 2016
DOI: 10.1594/pangaea.903302
title: Weather station (Meteo Sarti Vantage Pro2) measurements collected at the OBSEA shore station (UPC) during July, 2018
DOI: 10.1594/pangaea.903335
title: Weather station (Meteo Buoy WeatherStation Instrument 150WX) measurements collected at the OBSEA underwater observatory buoy during February, 2019
DOI: 10.1594/pangaea.908930
title: Current measurements (Nortec AWAC 1 Mhz ADCP) collected at the OBSEA underwater observatory during May, 2012
DOI: 10.1594/pangaea.961097
title: Clumped isotope and d18O/d13C data from ODP Leg 199 Site 1218 at the Eocene-Oligocene Transition

description: This dataset contains clumped isotope, and stable carbon and oxygen isotope data from benthic foraminifera from ODP Site 1218, in the eastern equatorial Pacific Ocean. The clumped isotope data were used to reconstruct deep ocean temperatures from ~35 Ma to ~33 Ma, across the Eocene-Oligocene Transition. Data in this dataset are provided as averaged stable isotope and temperature data, whereby each individual temperature represents the average of a minimum of 30 measurements of aliquots of monospecific benthic foraminifera sourced from multiple (n = 11-34) closely spaced samples.
DOI: 10.1594/pangaea.961098
title: Clumped isotope baseline deep ocean temperatures from the eastern equatorial Pacific Ocean at the Eocene-Oligocene Transition

description: This dataset contains clumped isotope-derived baseline deep ocean temperatures calculated by combining measurements from IODP Expedition 320 Sites U1334 and U1333, and ODP Site 1218, in the eastern equatorial Pacific Ocean. The clumped isotope data were used to reconstruct deep ocean temperatures from ~35 Ma to ~33 Ma, across the Eocene-Oligocene Transition. Data in this dataset are provided as averaged stable isotope and temperature data.
DOI: 10.1594/pangaea.967156
title: Middle Miocene seawater isotope evolution at IODP Site 307-U1318

description: Mid-Miocene (16.6 – 12.8 Ma) hydrogen isotopes of alkenones and sea temperatures are obtained from the sediment record of Integrated Ocean Discovery Program (IODP) Expedition 307, Site U1318 drilled in the Porcupine Basin, north east Atlantic at a water depth of ~ 400 m. Surface seawater isotopes are calculated based on the hydrogen isotopic compositions of C37 long chain alkenones (δ2HC37) with the environment calibration of Gould et al. (2019, doi:10.1016/j.gca.2018.12.004). The bottom seawater isotopes are based on oxygen isotopes of benthic foraminifera (record from Quaijtaal et al., 2018, doi:10.1017/S0016756816001278) and subsurface temperature (subT) estimates (TEX86H). We applied the calibration of Cramer et al. (2011, doi:10.1029/2011JC007255) and calculated subT with the 0-200 m equation of Kim et al. (2012, doi:10.1029/2012GL051157).
DOI: 10.1594/pangaea.967157
title: Hydrogen Isotopes and revised SST of middle Miocene seawater from IODP Site 307-U1318

description: Mid-Miocene (16.6 - 12.8 Ma) hydrogen isotopes of alkenones and sea temperatures are obtained from the sediment record of Integrated Ocean Discovery Program (IODP) Expedition 307, Site U1318 drilled in the Porcupine Basin, north east Atlantic at a water depth of ~ 400 m. We present a revised temperature record (cf Sangiorgi et al., 2021, doi:10.1029/2020PA004059). The polar fractions used in the study of Sangiorgi et al. (2021, doi:10.1029/2020PA004059) were re-analysed and integrated for TEX86H and along with the UK'37 record extended by 25 samples. Across the total record (269 samples), 124 ketone samples were analysed for the hydrogen isotopic compositions of C37 long chain alkenones (δ2HC37) with a GC-IRMS.
DOI: 10.1594/pangaea.904755
title: (Supplement 05) Total cloud condensation nuclei time series at Paphos, Cyprus, during April 2017