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  • Books
  • Data  (3)
  • Published Data from PANGAEA  (2)
  • Published Data from GFZ  (1)
  • 2020-2024  (3)
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  • Books
  • Data  (3)
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Year
  • 1
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    Unknown
    Biological and chemical water properties measured in water bottle samples during the cruise POS432 in Madeira basin in May 2012 (2022)
    PANGAEA
    Details
    Publication Date: 2024-06-26
    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 Expected Availability
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    DATA PANGAEA
  • 2
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    Depth distribution and biomass of sublittoral seaweeds at the island of Helgoland in 2005 (2023)
    PANGAEA
    Details
    Publication Date: 2023-12-27
    Description: In 2005, the species composition and spatial distribution of the seaweed community were investigated in the frame of diving surveys along a sublittoral transect in the North of Helgoland that had been investigated ~40 years earlier by Lüning (1970). The cover of dominant brown seaweeds, Fucus serratus, Sargassum muticum, Laminaria digitata, L. hyperborea and Saccharina latissima, was semi-quantitatively assessed to define vegetation zones. Within each zone, all macroalgal species were estimated quantitatively in 3 to 6 random 1 m² quadrats. Additionally, a replicated biomass survey was performed at 6 depths (0.5, 2, 4, 6, 8 and 10 m below mean low water spring tide). The survey investigated the occurrence, cover and relative frequency of the algae community and information about fresh mass and dry mass were obtained. For kelps also stipe length, blade area, blade fresh mass, age and fresh mass of epiphytes was recorded.
    Keywords: algae community; Biomass; cover; distribution; fresh mass; Helgoland; kelp; leaf area index (LAI); Macroalgae; occurence; relative frequency
    Type: Dataset
    Format: application/zip, 3 datasets
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 3
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    Seismic neTwoRk/Array in norThwEstern arGentina (STRATEGy) (2023)
    GFZ Data Services
    Details
    Publication Date: 2024-05-21
    Description: Abstract
    Description: The STRATEGy network was a temporary seismic network in the NW Argentinean Andean Foreland. It run for about 15 months between June 2016 and August 2017 and consisted of 13 stations for the most parts. Each station contains a Lennartz LE3D/5s seismometer, an Omnirecs DataCube³ext digitizer (100 Hz sampling rate) with external GPS antenna and internal flash memory. Station 14A consisted of a Mark L-4C-3D short-period sensor. The power was supplied through an external batteries that were recharged during the day via a solar panel. The sensors were oriented to magnetic north. The header of the waveform files (NSLC-IDs) still remained in its prior form (network code ST) and haven’t been adapted to the FDSN given code. Station codes (double digits) were assigned from North to South. The last digit of the station code is either A (for their initial position of a station site) or B (the station has been moved during the networks operation time due to low quality recordings at the respective initial site). Each site was chosen on 3 criteria: (1) minimizing the depth to bedrock, (2) maximizing remoteness, and (3) maximizing security, preferentially located within sight of nearby settlements. However, one station (02A) was lost due to theft and many others experienced recording gaps due to animals chewing on cables, malfunctions of electrical parts and mainly flooding of the stations during the austral summer monsoon. The overall network geometry evolved partially due to accessibility of remote locations, maintaining similar interstation distances and focusing around the epicenter of the Mw 5.7 El Galpón earthquake 9 months prior to the network’s starttime. The smallest depths to bedrock were achieved by concentrating the sites around two major bedrock ranges and their piedmont, Cerro Colorado and Sierra de la Candelaria. Waveform data are available from the GEOFON data centre, under network code 2S.
    Keywords: Monitoring system ; EARTH SCIENCE 〉 SOLID EARTH 〉 TECTONICS 〉 VOLCANIC ACTIVITY ; In Situ/Laboratory Instruments 〉 Magnetic/Motion Sensors 〉 Seismometers ; In Situ Land-based Platforms 〉 GEOPHYSICAL STATIONS/NETWORKS ; Passive seismic ; Seismometers ; Velocity ; MiniSEED
    Type: Dataset , Seismic Network
    Format: 111GB
    Format: .mseed
    Format: XML
    Location Call Number Expected Availability
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    DATA GFZ
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