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  • Data  (9)
  • 2020-2024  (9)
  • 2024  (1)
  • 2022  (8)
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  • 2020-2024  (9)
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  • 1
    Publication Date: 2024-04-20
    Description: Multibeam bathymetry raw data using the ship's own Kongsberg (Simrad) EM 120 multibeam echosounder was not continuously recorded during RV MARIA S. MERIAN cruise MSM18/1. Data was recorded on 12 days between 2011-04-18 and 2011-05-01. This dataset contains a survey in the North Atlantic Ocean. The approximate average depth of the entire dataset is around 4700m. The data are archived at the Federal Maritime and Hydrographic Agency of Germany (Bundesamt für Seeschifffahrt und Hydrographie, BSH) and provided to PANGAEA database for data curation and publication. No ancillary sound velocity profiles (SVP) files from the cruise are archived at the BSH, thus no SVP files are added to this dataset. Also data analysis of the multibeam raw data revealed that SVP has not been changed during the survey. This publication is conducted within the efforts of the German Marine Research Alliance in the core area 'Data management and Digitalization' (Deutsche Allianz Meeresforschung, DAM). Data are unprocessed and therefore contains incorrect depth measurements (artifacts) without further processing. Note that refraction errors can be expected due to the lack of proper SVP. Overall, it appears that the data quality is rather good since the gridded hillshade data showed relatively few obstacles. Whether data acquisition has been monitored and system settings adjusted during surveying is unknown. Data can be processed e.g. with the open source software package MB-System (Caress, D. W., and D. N. Chayes, MB-System: Mapping the Seafloor, http://www.mbari.org/products/research-software/mb-system/, 2022).
    Keywords: Bathymetry; Binary Object; Binary Object (File Size); Binary Object (Media Type); Comment; DAM_Underway; DAM Underway Research Data; Data file recording distance; Data file recording duration; DATE/TIME; ELEVATION; File content; Kongsberg datagram raw file name; LATITUDE; LONGITUDE; Maria S. Merian; MSM18/1; MSM18/1_0_Underway-1; Multibeam Echosounder; Number of pings; Ship speed; Start of data file, depth; Start of data file, heading; Start of data file recording, date/time; Start of data file recording, latitude; Start of data file recording, longitude; Stop of data file, depth; Stop of data file, heading; Stop of data file recording, date/time; Stop of data file recording, latitude; Stop of data file recording, longitude; Swath-mapping system Simrad EM-120 (Kongsberg Maritime AS)
    Type: Dataset
    Format: text/tab-separated-values, 6503 data points
    Location Call Number Limitation Availability
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  • 2
    Publication Date: 2024-05-15
    Description: Current velocities of the upper water column along the cruise track of R/V Sonne cruise SO296/1 were collected by a vessel-mounted 75 kHz RDI Ocean Surveyor ADCP. The ADCP transducer was located at 6.0 m below the water line. The instrument was operated in narrowband mode (WM10) with a bin size of 8.00 m, a blanking distance of 8.00 m, and a total of 100 bins, covering the depth range between 22.0 m and 814.0 m. Heading, pitch and roll data from the ship's motion reference unit and the navigation data from the Global Positioning systems were used by the data acquisition software VmDAS internally to convert ADCP velocities into earth coordinates. Single-ping data were screened for bottom signals and, where appropriate, a bottom mask was manually processed. The ship's velocity was calculated from position fixes obtained by the Global Positioning System (GPS). Accuracy of the ADCP velocities mainly depends on the quality of the position fixes and the ship's heading data. Further errors stem from a misalignment of the transducer with the ship's centerline. Data post-processing included water track calibration of the misalignment angle (-0.1252° +/- 0.4024°) and scale factor (1.0042 +/- 0.0075) of the Ocean Surveyor signal. The velocity data were averaged in time using an average interval of 60 s. Velocity quality flagging is based on different threshold criteria: Depth cells with ensemble-averaged percent-good values below 25% are marked as 'bad data'. Depth cells with velocities above 1.5 m/s are flagged as 'bad data'. Depth cells with a root-mean-square deviation between the measured ensemble-average velocity and a cell-wise running-mean velocity above 0.3 m/s are flagged as 'probably bad data'.
    Keywords: Current velocity, east-west; Current velocity, north-south; DAM_Underway; DAM Underway Research Data; DATE/TIME; DEPTH, water; Echo intensity, relative; LATITUDE; LONGITUDE; MAPUCHE; Pings, averaged to a double ensemble value; Quality flag, current velocity; Seadatanet flag: Data quality control procedures according to SeaDataNet (2010); SO296/1; SO296/1_0_Underway-4; Sonne_2; Vessel mounted Acoustic Doppler Current Profiler [75 kHz]; VMADCP-75
    Type: Dataset
    Format: text/tab-separated-values, 11235790 data points
    Location Call Number Limitation Availability
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  • 3
    Publication Date: 2024-06-12
    Description: During the cruise POS459 on board the German R/V Poseidon, we collected water with a CTD SBE 11plus equipped with 14 Hydrobios free flow bottles of 10 L each in 9 stations (resulting in almost 100 samples) in the Madeira basin region, Northeast Atlantic. We aimed to study the physical and biogeochemical conditions of the water column along the 22°W meridian, north and south of the Azores Front, in September 2013. We measured concentrations of chlorophyll a, phaeopigments, suspended particulate material (SPM), and nutrients such as nitrate, nitrite, phosphate and silicate. Also, we determined concentrations of particulate organic carbon (POC) and particulate organic nitrogen (PON). The physical oceanography associated with this dataset can be found at https://doi.org/10.1594/PANGAEA.949122. Brief description of the methodology used: - Nitrate, nitrite, phosphate, and silicate were measured by continuous flow analysis. - POC and PON were measured by means of an elemental analyser after filtered with pre-combusted GF/F-filters. - Suspended particulate material (SPM) was determined gravimetrically after pre-combusted and weighted GF/F-filters filtration. - Chlorophyll a and phaeopigments were measured using a fluorometer after ethanol extraction of the GF/F-filters.
    Keywords: Azores Front; biogeochemistry; Carbon, organic, particulate; Chlorophyll a; CTD/Rosette; CTD-RO; DATE/TIME; DEPTH, water; elemental analyzer (GF/F- filtered) (Grasshoff et al., 1999); ELEVATION; Event label; File name; fluorometer (ethanol extraction; GF/F-filtered) (Grasshoff et al., 1999); gravimetrically (GF/F-filtered) (Grasshoff et al., 1999); LATITUDE; LONGITUDE; Nitrate; Nitrite; Nitrogen, organic, particulate; Northeast Atlantic; Phaeopigments; Phosphate; POS459; POS459_0996-1; POS459_0997-1; POS459_0999-1; POS459_1002-1; POS459_1003-1; POS459_1004-1; POS459_1006-1; POS459_1007-1; POS459_1008-2; Poseidon; Salinity; Silicate; Suspended particulate matter; Temperature, water; Water volume, filtered; wet chemical treatment; Continuous flow analysis (Grasshoff et al., 1999)
    Type: Dataset
    Format: text/tab-separated-values, 971 data points
    Location Call Number Limitation Availability
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  • 4
    Publication Date: 2024-06-12
    Description: During the cruise POS470 on board the German R/V Poseidon, we collected water with a CTD SBE911plus equipped with 14 Hydrobios free flow bottles of 5 L each in 31 stations (resulting in more than 300 samples) and during transect time in the Madeira basin region, Northeast Atlantic. We aimed to study the physical and biogeochemical conditions in the upper 2000 m of the water column around the catchment area of Kiel 276 in May/June 2014. We measured concentrations of chlorophyll a, phaeopigments, suspended particulate material (SPM), and nutrients such as nitrate, nitrite, phosphate and silicate. Also, we determined concentrations of particulate organic carbon (POC) and particulate organic nitrogen (PON) as well as dissolved organic carbon (DOC) and dissolved nitrogen (DN). The physical oceanography during the survey is available at PANGAEA (https://doi.org/10.1594/PANGAEA.949132). Brief description of the methodology used: - Nitrate, nitrite, phosphate and silicate were measured by continuous flow analysis. - Oxygen was measured on one sample at each station by potentiometric Winkler titration. - DOC and DN were measured by catalytic oxidation after filtered with GF/F-filters. - POC and PON were measured by means of an elemental analyser after filtered with pre-combusted GF/F-filters. - Suspended particulate material (SPM) was determined gravimetrically after pre-combusted and weighted GF/F-filters filtration. - Chlorophyll a and phaeopigments were measured using a fluorometer after ethanol extraction of the GF/F-filters.
    Keywords: Azores Front; biogeochemistry; Carbon, organic, dissolved; Carbon, organic, particulate; catalytic oxidation (GF/F-filtered) (Grasshoff et al., 1999); Chlorophyll a; CTD/Rosette; CTD-RO; DATE/TIME; DEPTH, water; elemental analyzer (GF/F- filtered) (Grasshoff et al., 1999); ELEVATION; Event label; File name; fluorometer (ethanol extraction; GF/F-filtered) (Grasshoff et al., 1999); gravimetrically (GF/F-filtered) (Grasshoff et al., 1999); LATITUDE; LONGITUDE; Nitrate; Nitrite; Nitrogen, organic, dissolved; Nitrogen, organic, particulate; Northeast Atlantic; Phaeopigments; Phosphate; POS470; POS470_610-1; POS470_611-3; POS470_612-1; POS470_613-4; POS470_614-1; POS470_615-1; POS470_616-1; POS470_617-1; POS470_618-3; POS470_619-1; POS470_620-1; POS470_621-1; POS470_622-1; POS470_623-1; POS470_624-1; POS470_625-1; POS470_627-1; POS470_628-1; POS470_629-1; POS470_630-1; POS470_631-1; POS470_632-5; POS470_633-1; POS470_634-1; POS470_635-1; POS470_636-2; POS470_637-1; POS470_638-1; POS470_639-1; POS470_640-1; POS470_641-1; Poseidon; Salinity; Silicate; SMIS DEKADE; Suspended particulate matter; Temperature, water; Water volume, filtered
    Type: Dataset
    Format: text/tab-separated-values, 4511 data points
    Location Call Number Limitation Availability
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  • 5
    Publication Date: 2024-06-12
    Description: During the cruise SO269 (August/September 2019) on board of the German RV SONNE, we collected water with a CTD SBE911 rosette system at 81 stations (resulting in more than 600 water samples) distributed along the shelf, shelf edge and deep-sea of the northern South China Sea. We measured concentrations of chlorophyll a, phaeopigments, suspended particulate material (SPM) and nutrients as nitrate, nitrite, phosphate and silicate. Also, we determined concentrations of particulate organic carbon (POC) and particulate organic nitrogen (PON) as well as dissolved organic carbon (DOC) and dissolved organic nitrogen (DON). The hydrographic data collected during this survey is available at PANGAEA (Waniek et al. 2021). Brief description of the methodology used: Nitrate, nitrite, phosphate and silicate were measured by continuous flow analysis. DOC and DON were measured by catalytic oxidation after filtration through GF/F-filter. POC and PON were measured by means of an elemental analyser after filtration through pre-combusted GF/F-filters. SPM was determined gravimetrically after by determining the difference between empty pre-combusted and loaded (sample filtrate) weighted GF/F-filter. Chlorophyll a and phaeopigments were measured using a fluorometer after ethanol extraction of the GF/F-filters.
    Keywords: biogeochemistry; Carbon, organic, dissolved; Carbon, organic, particulate; catalytic oxidation (GF/F-filtered) (Grasshoff et al., 1999); Chlorophyll a; CTD, Sea-Bird SBE 911plus; CTD/Rosette; CTD-RO; DATE/TIME; Depth, bottom/max; DEPTH, water; elemental analyzer (GF/F- filtered) (Grasshoff et al., 1999); Event label; File name; fluorometer (ethanol extraction; GF/F-filtered) (Grasshoff et al., 1999); gravimetrically (GF/F-filtered) (Grasshoff et al., 1999); LATITUDE; LONGITUDE; Nitrate; Nitrite; Nitrogen, organic, dissolved; Nitrogen, organic, particulate; nutrients; Phaeopigments; Phosphate; PUMP; Salinity; SCS01; SCS02; SCS03; SCS04; SCS05; SCS06; SCS07; SCS08; SCS09; SCS10; SCS11; SCS12; SCS13; SCS14; SCS15; SCS16; SCS17; SCS18; SCS19; SCS19_02; SCS19_04; SCS19_06; SCS19_08; SCS19_10; SCS19_12; SCS19_14; SCS19_16; SCS19_17; SCS20; SCS21; SCS22; SCS23; SCS24; SCS25; SCS26; SCS27; SCS28; SCS29; SCS30; SCS31; SCS32; SCS33; SCS34; SCS35; SCS36; SCS37; SCS38; SCS39; SCS40; SCS41; SCS41_2; SCS42; SCS43; SCS44; SCS45; SCS46; SCS47; SCS48; SCS49; SCS50; SCS51; SCS52; SCS53; SCS54; SCS55; SCS56; SCS57; SCS58_01; SCS58_03; SCS58_05; SCS58_07; SCS58_09; SCS58_11; SCS58_13; SCS58_15; SCS58_17; SCS58_19; SCS58_21; SCS58_23; SCS58_25; SCS58_27; SCS59; SCS60; SCS61; SCS62; SCS63; SCS64; SCS64_1; SCS65; SCS66; SCS67; SCS68; SCS69; SCS70; SCS72; SCS80; SCS81; SCS82; SCS83; SCS85; Silicate; SO269; SO269_101-1; SO269_103-1; SO269_105-1; SO269_107-1; SO269_107-4; SO269_109-1; SO269_1-1; SO269_11-1; SO269_111-1; SO269_113-1; SO269_115-1; SO269_117-1; SO269_121-1; SO269_123-1; SO269_125-1; SO269_127-1; SO269_129-1; SO269_13-1; SO269_133-1; SO269_137-1; SO269_15-1; SO269_153-1; SO269_153-4; SO269_153-6; SO269_154-1; SO269_155-1; SO269_156-1; SO269_157-1; SO269_158-1; SO269_163-1; SO269_163-4-10; SO269_163-4-12; SO269_163-4-14; SO269_163-4-16; SO269_163-4-18; SO269_163-4-2; SO269_163-4-20; SO269_163-4-22; SO269_163-4-24; SO269_163-4-26; SO269_163-4-4; SO269_163-4-6; SO269_163-4-8; SO269_166-1; SO269_168-1; SO269_169-1; SO269_170-1; SO269_17-1; SO269_171-1; SO269_172-1; SO269_180-1; SO269_180-2-10; SO269_180-2-12; SO269_180-2-14; SO269_180-2-16; SO269_180-2-17; SO269_180-2-2; SO269_180-2-4; SO269_180-2-6; SO269_180-2-8; SO269_19-1; SO269_21-1; SO269_23-1; SO269_25-1; SO269_27-1; SO269_29-1; SO269_3-1; SO269_31-1; SO269_33-1; SO269_35-1; SO269_37-1; SO269_39-1; SO269_41-1; SO269_43-1; SO269_45-1; SO269_47-1; SO269_49-1; SO269_49-2; SO269_5-1; SO269_51-1; SO269_53-1; SO269_55-1; SO269_57-1; SO269_59-1; SO269_61-1; SO269_62-1; SO269_63-1-1; SO269_63-1-2; SO269_65-1; SO269_67-1; SO269_69-1; SO269_7-1; SO269_71-1; SO269_73-1; SO269_75-1; SO269_77-1; SO269_81-1; SO269_83-1; SO269_87-1; SO269_89-1; SO269_9-1; SO269_91-1; SO269_93-1; SO269_95-1; SO269_99-1; SOCLIS; Sonne_2; South China Sea; South China Sea Natural Laboratory under Climatic and Anthropogenic Stress; Station label; Suspended particulate matter; Temperature, water; Water pump; wet chemical treatment; Continuous flow analysis (Grasshoff et al., 1999)
    Type: Dataset
    Format: text/tab-separated-values, 9312 data points
    Location Call Number Limitation Availability
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  • 6
    Publication Date: 2024-06-12
    Description: During the cruise POS432 on board the German R/V Poseidon, we collected water with a CTD SBE 11plus equipped with 14 Hydrobios free flow bottles of 10 L each in 15 stations (resulting in almost 100 samples) in the Madeira basin region, Northeast Atlantic. We aimed to study the physical and biogeochemical conditions of the water column along the 22°W meridian, north and south of the Azores Front, in May 2012. We measured concentrations of chlorophyll a, phaeopigments, suspended particulate material (SPM), and nutrients such as nitrate, nitrite, phosphate, and silicate.
    Keywords: Azores Front; biogeochemistry; Chlorophyll a; CTD, Sea-Bird, SBE 911plus; CTD/Rosette; CTD-RO; Date/Time of event; DEPTH, water; ELEVATION; Event label; fluorometer (ethanol extraction; GF/F-filtered) (Grasshoff et al., 1999); gravimetrically (GF/F-filtered) (Grasshoff et al., 1999); Longitude of event; Nitrate; Nitrite; Northeast Atlantic; Phaeopigments; Phosphate; POS432; POS432_118-2; POS432_119-1; POS432_120-1; POS432_121-1; POS432_124-1; POS432_125-1; POS432_126-3; POS432_128-1; POS432_129-1; POS432_131-1; POS432_132-1; POS432_133-1; POS432_136-1; POS432_137-1; POS432_138-1; Poseidon; Salinity; Silicate; Suspended particulate matter; Temperature, water; Water volume, filtered; wet chemical treatment; Continuous flow analysis (Grasshoff et al., 1999)
    Type: Dataset
    Format: text/tab-separated-values, 1020 data points
    Location Call Number Limitation Availability
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  • 7
    Publication Date: 2024-06-12
    Description: This set provides 19 CTD profiles of temperature, salinity, dissolved oxygen, fluorescence, turbidity and sound velocity measured on board of the German R/V Poseidon in May 2012, in the Madeira basin region, Northeast Atlantic. We aimed to study the physical and biogeochemical conditions of the water column along the 22°W meridian, north and south of the Azores Front. The biogeochemical data associated to this dataset can be found in doi:10.1594/PANGAEA.946626
    Keywords: Azores Front; Calculated; Chlorophyll a; Conductivity; CTD, Sea-Bird, SBE 911plus; CTD/Rosette; CTD-RO; Date/Time of event; Density, potential; DEPTH, water; Event label; Fluorometer/turbidity meter, WET Labs ECO FLNTU; Latitude of event; Longitude of event; Northeast Atlantic; Oxygen, dissolved; Oxygen saturation, per unit volume of the liquid; physical oceanography; POS432; POS432_118-1; POS432_118-2; POS432_119-1; POS432_120-1; POS432_121-1; POS432_122-1; POS432_124-1; POS432_125-1; POS432_126-1; POS432_126-3; POS432_128-1; POS432_129-1; POS432_131-1; POS432_132-1; POS432_133-1; POS432_136-1; POS432_137-1; POS432_138-1; Poseidon; Pressure, water; Salinity; Sound velocity in water; Temperature, water; Turbidity (Nephelometric turbidity unit)
    Type: Dataset
    Format: text/tab-separated-values, 440944 data points
    Location Call Number Limitation Availability
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  • 8
    Publication Date: 2024-06-12
    Description: During the cruise POS470 on board the German R/V Poseidon, we measured temperature, salinity, dissolved oxygen, fluorescence and turbidity on 33 stations in the Madeira Basin, Northeast Atlantic in May and June 2014. We aimed to study the physical and biogeochemical conditions in the upper 2000 m of the water column in the catchment area of Kiel 276. The CTD stations are distributed along three meridians (23°W, 22°W, and 21°W) and between 30° and 37°N to locate the Azores Front. The dissolved oxygen data is noisy below 1700 m. Since there was no measurement of dissolved oxygen (Winkler titration) during the cruise, the data cannot be calibrated.
    Keywords: Azores Front; Calculated; Chlorophyll a; Conductivity; CTD, Sea-Bird, SBE 911plus; CTD, SEA-BIRD SBE 43; CTD/Rosette; CTD-RO; DATE/TIME; Density, potential; DEPTH, water; Event label; File name; Fluorometer/turbidity meter, WET Labs ECO FLNTU; LATITUDE; LONGITUDE; Northeast Atlantic; Oxygen, dissolved; Oxygen saturation, per unit volume of the liquid; physical oceanography; POS470; POS470_608-5; POS470_610-1; POS470_611-3; POS470_612-1; POS470_613-4; POS470_614-1; POS470_615-1; POS470_616-1; POS470_617-1; POS470_618-3; POS470_619-1; POS470_620-1; POS470_621-1; POS470_622-1; POS470_623-1; POS470_624-1; POS470_625-1; POS470_627-1; POS470_628-1; POS470_629-1; POS470_630-1; POS470_631-1; POS470_632-5; POS470_633-1; POS470_634-1; POS470_635-1; POS470_636-2; POS470_637-1; POS470_637-3; POS470_638-1; POS470_639-1; POS470_640-1; POS470_641-1; Poseidon; Pressure, water; Salinity; SMIS DEKADE; Sound velocity in water; Temperature, water; Turbidity (Nephelometric turbidity unit)
    Type: Dataset
    Format: text/tab-separated-values, 7999449 data points
    Location Call Number Limitation Availability
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  • 9
    Publication Date: 2024-06-12
    Description: This set provides 12 CTD profiles of temperature, salinity, dissolved oxygen, fluorescence, turbidity, and sound velocity measured on board the German R/V Poseidon in September 2013, in the Madeira basin region, Northeast Atlantic. We aimed to study the physical and biogeochemical conditions of the water column along the 22°W meridian, north and south of the Azores Front.
    Keywords: Autonomous underwater vehicle; AUV; Azores Front; Calculated; Chlorophyll a; Conductivity; CTD, Sea-Bird, SBE 911plus; CTD, SEA-BIRD SBE 43; CTD/Rosette; CTD-RO; DATE/TIME; Density, potential; DEPTH, water; Event label; Fluorometer, WET Labs ECO AFL/FL; LATITUDE; LONGITUDE; Northeast Atlantic; Oxygen, dissolved; Oxygen saturation, per unit volume of the liquid; Physical oceanographic data; POS459; POS459_0996-1; POS459_0997-1; POS459_0999-1; POS459_1000-2; POS459_1001-1; POS459_1002-1; POS459_1003-1; POS459_1004-1; POS459_1005-1; POS459_1006-1; POS459_1007-1; POS459_1008-1; Poseidon; Pressure, water; Salinity; Sound velocity in water; Temperature, water; Turbidity (Nephelometric turbidity unit)
    Type: Dataset
    Format: text/tab-separated-values, 623938 data points
    Location Call Number Limitation Availability
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