cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.934196
title: BHP abundances and ratio in Effingham Inlet and Deer Bay

description: Bacteriohopanepolyol abundances and ratios were studied in suspended particulate matter obtained along the redoxcline in Effingham Inlet (lat 49.07, long −125.15; 120m water depth) and Deer Bay (lat 49.22, long −125.60; 40m water depth), Vancouver Island, to infer chemo(auto)trophy in these fjords. Water column suspended particulate matter samples were obtained from Vancouver Island fjords using McLane WTS-LV (standard configuration) in situ filtration systems aboard R/V Barnes in July 2007.
DOI: 10.1594/pangaea.927878
title: Geochemistry of Struban Bog (STR) peat core from the Outer Hebrides in Scotland

description: Geochemistry data of a high-resolution peat core from the Past Global Changes - Carbon in Peat on EArth through Time (PAGES_C-PEAT) Project.
DOI: 10.1594/pangaea.974053
title: Dissolved Cu and Ni concentrations from METEOR cruises M135, M136, M137 and M138

description: Trace metal clean sampling equipment was deployed on a series of cruises along the Peruvian Oxygen Minimum Zone to facilitate the observation of contamination prone chemical parameters. All trace metal sample collection, handling, and analysis was conducted in accordance with GEOTRACES protocols which have been updated through the SFB754 program (Cutter et al., 2014). The deployment of an over-pressured clean container on deck facilitated sampling and collection of trace metal and other contamination-prone samples at sea. 24 Ocean Test Equipment (OTE) samplers were deployed mounted on a powder coated sampling CTD (Sea-Bird SBE25) rosette using a Kevlar conducting cable with sample handling and preservation as per Rapp et al., (2019). Samples were acidified, pre-concentrated and analyzed exactly as per Rapp et al., (2017).
DOI: 10.1594/pangaea.934089
title: Adenosyl-BHP abundances in Vancouver Island and Black Sea total suspended POM

description: Adenosyl-BHP abundances in Vancouver Island and Black Sea total suspended particulate matter and Cariaco sinking particulate organic matter samples were analyzed to study in situ production in oxygen minimum zones. Water column suspended particulate matter samples were obtained using McLane WTS-LV (standard configuration) in situ filtration systems from Vancouver Island fjords aboard R/V Barnes in 2007 and the Black Sea aboard R/V Knorr (cruise 172/8) in 2003. Sinking particulate organic matter was sampled in sediment traps as part of the CARIACO Ocean Time-Series Program in Cariaco Basin. Adenosyl-BHPs were analyzed in trap A (275 m water depth) and trap B (455 m water depth) for 14-day opening intervals from November 1999 through April 2000 and July 2002 through October 2002.
description: POC data for Effingham Inlet are from Diaz et al. (2012).
DOI: 10.15468/dl.8gujv3
title: Occurrence Download

description: A dataset containing 41 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Opsaridium peringueyi (Gilchrist & Thompson, 1913)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "BasisOfRecord is one of (Specimen, Living Specimen, Observation, Human Observation, Machine Observation, Material sample, Literature Occurrence, Material citation, Occurrence evidence)",
 "Geometry POLYGON ((31.8862 -21.3285,30.5701 -20.3186,30.5701 -24.0715,35.5909 -24.0715,35.6007 -24.0157,35.6007 -23.8125,35.4969 -23.7035,35.6007 -23.165,35.6007 -22.9702,35.227 -22.2482,34.6862 -21.6944,34.013 -21.3095,33.5 -21.1593,32.9675 -21.1092,32.4352 -21.1612,31.8862 -21.3285))"
 ]
}

 The dataset includes 41 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0026511-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.1594/pangaea.943267
title: Foraminifera-bound nitrogen isotope records of ODP Site 198-1209

description: Dataset contains all species-specific, genus-specific and mixed-taxa foraminifer-bound FB-δ15N and FB-N content measurements from ODP 1209.
DOI: 10.1594/pangaea.943122
title: Foraminifera-bound nitrogen isotope records of DSDP Site 72-516

description: Dataset contains all species-specific, genus-specific and mixed-taxa foraminifer-bound FB-δ15N and FB-N content measurements from DSDP 516.
description: Data are plotted in Figure 2, 3 and Extended Data Figure 1 in Auderset et al., 2022.
DOI: 10.1594/pangaea.943272
title: Foraminifera-bound nitrogen isotope records of ODP Site 208-1263

description: Dataset contains all species-specific, genus-specific and mixed-taxa foraminifer-bound FB-δ15N and FB-N content measurements from ODP 1263.
DOI: 10.1594/pangaea.946617
title: Nitrogen isotope records, SST compilation and age models from multiple ODP/DSDP sites - Excel files

description: The content of dataset bundle "Cenozoic foraminifera-bound nitrogen isotope records, TEX86-derived global SST compilation, and GTS-12 adjusted age models from multiple ODP/DSDP sites" (doi:10.1594/PANGAEA.943130) is collected here in the form of 3 Excel files.
description: About the files of this dataset:Table_S1_d15N_data.xlsxδ15N and N content data. Sheets titled "DSDP 516", "ODP 872" contain all species-specific, genus-specific and mixed-taxa foraminifer-bound FB-δ15N and FB-N content measurements from DSDP 516 and ODP 872. Sheet titled "ODP 1211" contains mixed-taxa foraminifer-bound FB-δ15N and FB-N content measurements from ODP Site 1211. The sheet titled "d15N gradient" contains the calculated nitrogen isotope gradient between the Pacific and Atlantic.Table_S2_SST_compilation.xlsxTEX86 data measured in this study (ODP/DSDP Sites 516, 588, 667, 704, 730, 754, 1146 and 1263), and compilation of all published marine TEX86 records. This table contains all GDGT Table_S1_d15N_data.xlsx measurements, calculated indices, temperatures and gradients. Table_S3_Age_models.xlsxApplied age models for ODP/DSDP Sites 516, 588, 667, 690, 704, 730, 738, 754, 1146, 1211 and 1263 with biostratigraphic (calcareous nannoplankton and foraminifer) and magnetostratigraphic datums adjusted to GTS-12 timescale.
DOI: 10.1594/pangaea.943127
title: Foraminifera-bound nitrogen isotope records of ODP Site 144-872

description: Dataset contains all species-specific, genus-specific and mixed-taxa foraminifer-bound FB-δ15N and FB-N content measurements from ODP 872.
description: Data are plotted in Figure 2, 3 and Extended Data Figure 1 in Auderset et al., 2022.
DOI: 10.1594/pangaea.881319
title: Swath sonar bathymetry during R/V Sonne cruise SO258/2 with links to multibeam raw data files

description: Multibeam data were collected during R/V Sonne cruise 258/2. Data recording was executed during the whole cruise. Eight parallel profiles were measured in north south direction starting on Sri Lanka Shelf at ca. 6°00'N until 3°30'S. Western most profile is following longitude of 80°50'40"E. Neighbouring profiles are continuing to the east with distance of 17.2 km (9.2nm) one to the next. Western most two profiles reach 11°17'S and have length of 1880 km (1015 nm). Profiles 3 to 8 have length of at least 1030 km (556 nm). Across second OBS profile from 03°35'N/082°26'E to 01°29'N/084°01'E a bathymetry profile with length of ca. 400 km (216 nm) and a parallel profile with length of 340 km (184 nm) were sampled. Neglecting repeatedly sailed tracks during OBS operation as well as transits a complete bathymetric profile length of 5777 nautical miles (10.700 kilometers) was sampled. The covered area amounts to 180.000 square kilometers. Data are unprocessed and may contain outliers and blunders. Therefore the data should not directly be used for grid calculations and charting projects but need to be edited furthermore. One file contains a measurement period not exceeding one hour. The dataset consists of 1495 files in Kongsberg Multibeam Processing format (747 files *.all, 746 files *.wcd). which are compressed with GZIP to size of 14.9GB/50.7GB.
DOI: 10.1594/pangaea.915981
title: Physical oceanography during SONNE cruise SO258/2
DOI: 10.1594/pangaea.956014
title: Inorganic nutrient measurements in the Benguela Upwelling System during METEOR cruise M157

description: Upwelling systems are significant sources of atmospheric nitrous oxide (N₂O). The Benguela Upwelling System is one of the most productive regions worldwide and a temporally variable source of N₂O. Strong O₂ depletions above the shelf are favoring periodically OMZ formations. We aimed to assess underlying N₂O production and consumption processes on different temporal and spatial scales during austral winter in the Benguela Upwelling System, when O₂-deficiency in the water column is relatively low. The fieldwork took place during the cruise M157 (August 4ᵗʰ – September 16ᵗʰ 2019) onboard the R/V METEOR. This expedition included four close-coastal regions around Walvis Bay at 23°S, which presented the lowest O₂ concentrations near the seafloor and thus may provide hotspots of N₂O production. Seawater was collected in 10 L free-flow bottles by using a rosette system equipped with conductivity-temperature-depth (CTD) sensors (SBE 911plus, Seabird-electronics, USA).Concentrations of inorganic nutrients (PO₄³⁻, NH₄⁺, NO₃⁻, NO₂⁻, and SiO₂) were measured colorimetrically according to Grasshoff et al. (1999) by means of a continuous segmented flow analyzer (SEAL Analytical, QuAAtro39). To determine the water mass fractions along the sampling transects, vertical profiles were collected using a free-falling microstructure profiler (MSS90L, Sea & Sun Technology). Temperature, dissolved oxygen, and salinity were measured with a CTD system consisting of a SeaBird 911+ probe, mounted on a sampling rosette.
DOI: 10.1594/pangaea.959660
title: Sea surface trace gases during Maria S. Merian cruise MSM105

description: The high surface productivity triggered by nutrient-rich Benguela upwelled waters results in significant enrichment of organic carbon in the sub-surface waters due to enhanced mineralization in the water column and benthic fluxes. Hence, microbial oxygen demand processes are promoted, driving oxygen depletion that favors trace gas production at relatively shallow depths. During upwelling, gas-rich subsurface waters are transported towards the surface waters, enhancing trace gas sea-air fluxes. We investigate the variability of these fluxes on seasonal and shorter timescales to understand the intensity of the Benguela upwelling system in gas emissions. The data might serve as a base for projections under a changing climate. The fieldwork took place during the cruise MSM105 (January 11th – February 23rd, 2022) onboard the R/V MARIA S. MERIAN, which encompassed close-coastal and open ocean regions between Mindelo (Cape Verde) and Walvis Bay. The working area of the cruise MSM105 was the Namibian shelf between 18°S and 27°S which is suggested to represent some regional hotspots of trace gas emissions to the atmosphere. The partial pressures of CH4, N2O, and CO2 in the sea surface and atmosphere were determined using IOW's self-built Mobile Equilibrator Sensor System (MESS). The system was described in detail elsewhere (Sabbaghzadeh et al., 2021) but in brief, it consists of a custom-built equilibrator (combined shower-head/bubble type) with a water flow rate of about 5 l min-1 and an airflow rate of ~ 4.00 - 5.00 L min-1. The system is linked to two off-axis integrated cavity output laser spectrometers (oa-ICOS, Los Gatos Instruments) for the detection of CH4 / CO2 and N2O / CO. To operate the system, seawater was supplied by a deep-well pump (CAPRARI Desert E4XP30-4 with CAPRARI XPBM1 control unit, ~ 100 L min-1, Italy), installed in the moon-pool at ∼ 6.00 m water depth on board of the R/V MARIA S. MERIAN. All gas analyzers were calibrated against three standard gasses at the beginning and end of each survey daily for data recalibration and drift correction. In addition, one "zero" gas (i.e. Nitrogen 5.00, LINDE) was measured infrequently throughout the survey to check any system deficiency like leakage detection. To quantify sea-air gas fluxes, the atmospheric concentration of studied trace gas was measured at several positions during the cruise using a tube with the inlet positioned at the front of the bow to minimize ship contamination. All other ancillary parameters were synchronized with D-ship data with a simultaneous data reduction to one-minute intervals.
DOI: 10.1594/pangaea.959646
title: Trace gases CH4, N2O, and CO2 measured on discrete water samples during SONNE cruise SO283

description: The high surface productivity triggered by nutrient-rich Benguela upwelled waters results in significant enrichment of organic carbon in the sub-surface waters due to enhanced mineralization in the water column and benthic fluxes. Hence, microbial oxygen-consuming processes are promoted, driving oxygen depletion that favours trace gases i.e. methane (CH4) and nitrous oxide (N2O) production at relatively shallow depths. Also, gas-rich subsurface waters are transported towards the surface waters during upwelling, enhancing trace gas sea-air fluxes. Within the EVAR project, we investigate the variability of these fluxes on seasonal and shorter timescales to understand the intensity of the Benguela upwelling system as the source of these greenhouse gases relative to the atmosphere. The data might serve as a base for projections under a changing climate. The fieldwork took place during the cruise SO283 (March 19th – May 25th, 2021) onboard the R/V SONNE from and to Emden (Germany). The main area of the sampling was the Namibian shelf between 18°S and 25°S which is suggested to represent some regional hotspots of trace gas emissions to the atmosphere, in particular in the vicinity of the upwelling cells. Over 260 discrete water samples were collected from the Niskin bottles at different stations for the determination of the concentrations of CH4, N2O, and dissolved inorganic carbon (DIC). 200ml seawater samples were fixed with 200 µL of saturated HgCl2 solution straight after sampling and trace gas was quantified in return. Dissolved CH4 and N2O were measured by an in-house designed purge and trap system with a dynamic headspace method back on land. In brief, a subsample is purged with an inert ultrapure carrier gas of Helium, and the gases are focused on a cryo-trap operated at about -120°C. The volatile compounds are desorbed by rapid heating and analyzed by a gas chromatograph (GC; Agilent 7890B), equipped with capillary columns and a Deans Switch, which directed the components to the flamenionization detector for CH4 detection and electron capture detector ECD for N2O detection. To explore the carbonate system Dissolved Inorganic Carbon (DIC) was measured in the institute. About 5.00 ml of each fixed discrete sample was acidified by 10 % phosphoric acid, resulting in release of inorganic carbon content of the sample. An automated infra-red inorganic carbon analyzer (AIRICA, Marianda, Tulpenweg 28, D-24145 Kiel) equipped with an infrared detector LICOR 7000 (LI-COR Environmental – GmbH, Homburg, Germany) was used to quantify DIC. A 3-fold measurement of the pH was also carried out in 120 ml of discrete samples directly after sampling using the HydroFIA pH system (4H Jena Engineering, 24148 Kiel, Germany). We calculated the average pH value of the corresponding sample after Müller and Rehder (2018) and corresponding total alkalinity and pCO2 after Dickson et al. (2007).
DOI: 10.1594/pangaea.959667
title: Trace gases CH4, N2O, and CO2 measured on discrete water samples during Maria S. Merian cruise MSM105

description: The high surface productivity triggered by nutrient-rich Benguela upwelled waters results in significant enrichment of organic carbon in the sub-surface waters due to enhanced mineralization in the water column and benthic fluxes. Hence, microbial oxygen-consuming processes are promoted, driving oxygen depletion that favours trace gas i.e. methane (CH4) and nitrous oxide (N2O) production at relatively shallow depths. Also, gas-rich subsurface waters are transported towards sea surface during upwelling, enhancing trace gas sea-air fluxes. Within the EVAR project, we investigate the variability of these fluxes on seasonal and shorter timescales to understand the intensity of the Benguela upwelling system as the source of the greenhouse gases relative to the atmosphere. The data might serve as a base for projections under a changing climate. The fieldwork took place during the cruise MSM105 (January 11th – February 23rd, 2022) onboard the R/V MARIA S. MERIAN, which encompassed close-coastal and open ocean regions between Mindelo (Cape Verde) and Walvis Bay. The working area of the cruise MSM105 was the Namibian shelf between 18°S and 27°S which are suggested to represent some regional hotspots of trace gas emissions to the atmosphere, in particular in the vicinity of the upwelling cells. Over 260 discrete water samples were collected from the Niskin bottles at different stations for the determination of dissolved CH4, N2O, and dissolved inorganic carbon (DIC). 200ml seawater samples were fixed with 200 µL of saturated HgCl2 solution straight after sampling and dissolved trace gas was quantified in return. The dissolved gases were measured by an in-house designed purge and trap system with a dynamic headspace method back on land. In brief, a subsample is purged with an inert ultrapure carrier gas of Helium, and the gases are focused on a cryo-trap operated at about -120°C. The volatile compounds are desorbed by rapid heating and analyzed by a gas chromatograph (GC; Agilent 7890B), equipped with capillary columns and a Deans Switch, which directed the components to the flamenionization detector for CH4 detection and electron capture detector ECD for N2O detection. To explore the carbonate system, Dissolved Inorganic Carbon (DIC) was measured on board by an automated infra-red inorganic carbon analyzer (AIRICA, Marianda, Tulpenweg 28, D-24145 Kiel) equipped with an infrared detector LICOR 7000 (LI-COR Environmental – GmbH, Homburg, Germany. A 3-fold measurement of the pH was also carried out in 120 ml of discrete samples directly after sampling using the HydroFIA pH system (4H Jena Engineering, 24148 Kiel, Germany). We calculated the average pH value of the corresponding sample after Müller and Rehder (2018) and corresponding total alkalinity and pCO2 after Dickson et al. (2007).
DOI: 10.1594/pangaea.959647
title: Trace gases air daily means during Maria S. Merian cruise MSM105

description: The high surface productivity triggered by nutrient-rich Benguela upwelled waters results in significant enrichment of organic carbon in the sub-surface waters due to enhanced mineralization in the water column and benthic fluxes. Hence, microbial oxygen consuming processes are promoted, driving oxygen depletion that favors trace gases i.e. methane (CH4) and nitrous oxide (N2O) production at relatively shallow depths. During upwelling, gas-rich subsurface waters are also transported towards the surface waters, enhancing trace gas sea-air fluxes. We investigate the variability of these fluxes on seasonal and shorter timescales to understand the intensity of the Benguela upwelling system in gas emissions. The data might serve as a base for projections under a changing climate. The fieldwork took place during the cruise MSM105 (January 11th – February 23rd, 2022) onboard the R/V MARIA S. MERIAN, which encompassed close-coastal and open ocean regions between Mindelo (Cape Verde) and Walvis Bay. The working area of the cruise MSM105 was the Namibian shelf between 18°S and 27°S which are suggested to represent some regional hotspots of trace gas emissions to the atmosphere.The underway mesurement of partial pressures of CH4, N2O, and CO2 in sea surface and atmosphere were determined using IOW's self-built Mobile Equilibrator Sensor System (MESS). The system was described in details elsewhere (Sabbaghzadeh et al., 2021) but in brief, it consists of a custom-built equilibrator (combined shower-head/bubble type) and a control unit lined up with two Los Gatos Research off-axis laser absorption spectroscopy (oa-ICOS) analyzers. In this study, a Model # 908-0011-0001(CO2/CH4/H2O) and a Model # 908-0014-0000 (N2O/CO/H2O) were used. To quantify sea-air gas fluxes, the atmospheric concentration of studied trace gases was measured at several positions during the cruise using a tube with the inlet positioned at front of the bow to minimize ship contamination. All other ancillary parameters out of the MESS system were synchronized with D-ship data with a simultaneous data reduction to one-minute intervals.
DOI: 10.1594/pangaea.833511
title: Environmental time series data obtained from Point B
DOI: 10.1594/pangaea.763432
title: Swath sonar bathymetry during POLARSTERN cruise ARK-XVII/1 (PS59) with links to multibeam raw data files

description: Multibeam data were collected during R/V Polarstern cruise ARK-XVII/1. Data recording was executed in Greenland Sea and was supervised by a hydrographer. Data are unprocessed and may contain outliers and blunders. Therefore the data should not directly be used for grid calculations and charting projects but need to be edited furthermore. One file contains a measurement period not exceeding eight hours. The dataset consists of 103 files in ATLAS SURF format which are compressed with GZIP to size of 716 MB. SURF data files can be processed using the software packages CARIS HIPS/SIPS or with the open source software package MB-System (http://www.ldeo.columbia.edu/res/pi/MB-System/). The source code for an application programming interface (API) to read and write SURF data is released by the Hydrosweep manufacturer Atlas Hydrographic, Bremen, and published under the GNU GPL. Contact mailto:infobathy@awi.de for data access.
DOI: 10.1594/pangaea.733040
title: Swath sonar bathymetry during POLARSTERN cruise ANT-XX/2 (PS63) with links to multibeam raw data files

description: Multibeam data were measured during R/V Polarstern cruise ANT-XX/2 along track lines of 5557 NM total length during transits and partly during stationary work. Data were achieved in the Eastern Weddell Sea, the Riiser-Larsen Sea and the Lazarev Sea.
description: The raw multibeam sonar data in SURF format are compressed as TAR archive with GZIP. One dataset contains a measurement period not exceeding eight hours. SURF data files can be processed using the software packages CARIS HIPS/SIPS or with the open source software package MB-System (http://www.ldeo.columbia.edu/res/pi/MB-System/). The source code for an application programming interface (API) to read and write SURF data is released by the Hydrosweep manufacturer Atlas Hydrographic, Bremen, and published under the GNU GPL. Contact mailto:infobathy@awi.de for data access.
DOI: 10.1594/pangaea.919333
title: Distribution and abundance of pelagic organisms observed by PELAGIOS during Maria S. Merian cruise MSM49

description: Pelagic observations were collected via horizontal video transects using the pelagic in situ observation system PELAGIOS from 50-1000 m during MSM49. The collected video was annotated using the video and annotation reference system (VARS) developed by the Monterey Bay Aquarium Research Institute. In total more than 40 hours of video were collected and annotated, and 43 taxonomic groups were annotated, mostly consisting of gelatinous zooplankton. The data consists of counts of taxonomic groups (&gt;1 cm) linked to location and depth in the Cape Verde region. These counts are converted to abundance data (ind./m3).