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  • 1
    Online Resource
    Online Resource
    Saisonalität der DMS-, DMSP- und DMSO-Konzentrationen an der Zeitserienstation Boknis Eck (2010)
    Kiel
    Details Availability
    Keywords: Hochschulschrift
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (67 Blatt = 1,5 MB)
    URL: https://oceanrep.geomar.de/10700/
    Language: German
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  • 2
    Online Resource
    Online Resource
    Die Verteilung von DMS, DMSO und DMSP im Auftriebsgebiet vor Peru (Meteor M91-Fahrt) (2014)
    Kiel
    Details Availability
    Keywords: Hochschulschrift
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (53 Blatt = 4 MB) , Illustrationen, Diagramme
    URL: https://oceanrep.geomar.de/26229/
    Language: German
    Note: Zusammenfassung in deutscher und englischer Sprache
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  • 3
    Online Resource
    Online Resource
    Short-lived trace gases (DMS, isoprene, acetaldehyde and acetone) in the surface waters of the western Pacific and eastern Atlantic Oceans (2013)
    Details Availability
    Keywords: Hochschulschrift ; Meeresoberfläche ; Untere Atmosphäre ; Spurengas
    Type of Medium: Online Resource
    Pages: Online-Ressource
    URL: http://nbn-resolving.de/urn:nbn:de:gbv:8-diss-118247
    URL: http://d-nb.info/1034822705/34
    URL: http://macau.uni-kiel.de/receive/dissertation_diss_00011824
    URN: urn:nbn:de:gbv:8-diss-118247
    DDC: 570
    Language: English
    Note: Kiel, Univ., Diss., 2013
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  • 4
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    Sulphur compounds, methane, and phytoplankton during SONNE cruise SO202/2 (Transbrom Sonne) (2013)
    PANGAEA
    In:  Supplement to: Zindler, Cathleen; Bracher, Astrid; Marandino, Christa A; Taylor, Ben J; Torrecilla, Elena; Kock, Annette; Bange, Hermann Werner (2013): Sulphur compounds, methane, and phytoplankton: interactions along a north–south transit in the western Pacific Ocean. Biogeosciences, 10(5), 3297-3311, https://doi.org/10.5194/bg-10-3297-2013
    Details
    Publication Date: 2023-01-13
    Description: Here we present results of the first comprehensive study of sulphur compounds and methane in the oligotrophic tropical West Pacific Ocean. The concentrations of dimethylsuphide (DMS), dimethylsulphoniopropionate (DMSP), dimethylsulphoxide (DMSO), and methane (CH4), as well as various phytoplankton marker pigments in the surface ocean were measured along a north-south transit from Japan to Australia in October 2009. DMS (0.9 nmol/l), dissolved DMSP (DMSPd, 1.6 nmol/l) and particulate DMSP (DMSPp, 2 nmol/l) concentrations were generally low, while dissolved DMSO (DMSOd, 4.4 nmol/l) and particulate DMSO (DMSOp, 11.5 nmol/l) concentrations were comparably enhanced. Positive correlations were found between DMSO and DMSP as well as DMSP and DMSO with chlorophyll a, which suggests a similar source for both compounds. Similar phytoplankton groups were identified as being important for the DMSO and DMSP pool, thus, the same algae taxa might produce both DMSP and DMSO. In contrast, phytoplankton seemed to play only a minor role for the DMS distribution in the western Pacific Ocean. The observed DMSPp : DMSOp ratios were very low and seem to be characteristic of oligotrophic tropical waters representing the extreme endpoint of the global DMSPp : DMSOp ratio vs. SST relationship. It is most likely that nutrient limitation and oxidative stress in the tropical West Pacific Ocean triggered enhanced DMSO production leading to an accumulation of DMSO in the sea surface. Positive correlations between DMSPd and CH4, as well as between DMSO (particulate and total) and CH4, were found along the transit. We conclude that both DMSP and DMSO serve as substrates for methanogenic bacteria in the western Pacific Ocean.
    Type: Dataset
    Format: application/zip, 5 datasets
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  • 5
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    Underway N2O and CH4 measurements during SONNE cruise 202/2 (TRANSBROM) (2013)
    PANGAEA
    Details
    Publication Date: 2023-01-13
    Keywords: CT; DATE/TIME; ELEVATION; LATITUDE; LONGITUDE; Methane; Nitrous oxide, dissolved; Salinity; Sample code/label; SO202/2; SO202/2-track; Sonne; Temperature, water; TransBrom; Underway cruise track measurements; West Pacific
    Type: Dataset
    Format: text/tab-separated-values, 233 data points
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  • 6
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    Underway measurements of DMS, DMSP and DMSO during SONNE cruise 202/2 (TRANSBROM) (2013)
    PANGAEA
    Details
    Publication Date: 2023-01-13
    Keywords: CT; DATE/TIME; DEPTH, water; Dimethyl sulfide, coefficient of variation; Dimethyl sulfide, dissolved; Dimethyl sulfide, standard deviation; Dimethylsulfoniopropionate; Dimethylsulfoniopropionate, dissolved; Dimethylsulfoniopropionate, dissolved, coefficient of variation; Dimethylsulfoniopropionate, dissolved, standard deviation; Dimethylsulfoniopropionate, particulate; Dimethylsulfoniopropionate, total, coefficient of variation; Dimethyl sulfoxide, dissolved; Dimethyl sulfoxide, dissolved, coefficient of variation; Dimethyl sulfoxide, dissolved, standard deviation; Dimethyl sulfoxide, particulate; Dimethyl sulfoxide, total; Dimethyl sulfoxide, total, coefficient of variation; Dimethyl sulfoxide, total, standard deviation; Dimethylsulphoniopropionate, total, standard deviation; LATITUDE; LONGITUDE; SO202/2; SO202/2-track; Sonne; TransBrom; Underway cruise track measurements; West Pacific
    Type: Dataset
    Format: text/tab-separated-values, 1856 data points
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  • 7
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    Dimethylsulphide (DMS) emissions from the West Pacific Ocean: a potential marine source for the stratospheric sulphur layer (2013)
    Copernicus Publications (EGU)
    In:  Atmospheric Chemistry and Physics, 13 (16). pp. 8427-8437.
    Details
    Publication Date: 2019-09-23
    Description: Sea surface and atmospheric measurements of dimethylsulphide (DMS) were performed during the TransBrom cruise in the western Pacific Ocean between Japan and Australia in October 2009. Air–sea DMS fluxes were computed between 0 and 30 μmol m−2 d−1, which are in agreement with those computed by the current climatology, and peak emissions of marine DMS into the atmosphere were found during the occurrence of tropical storm systems. Atmospheric variability in DMS, however, did not follow that of the computed fluxes and was more related to atmospheric transport processes. The computed emissions were used as input fields for the Lagrangian dispersion model FLEXPART, which was set up with actual meteorological fields from ERA-Interim data and different chemical lifetimes of DMS. A comparison with aircraft in situ data from the adjacent HIPPO2 campaign revealed an overall good agreement between modelled versus observed DMS profiles over the tropical western Pacific Ocean. Based on observed DMS emissions and meteorological fields along the cruise track, the model projected that up to 30 g S per month in the form of DMS, emitted from an area of 6 × 104 m2, can be transported above 17 km. This surprisingly large DMS entrainment into the stratosphere is disproportionate to the regional extent of the area of emissions and mainly due to the high convective activity in this region as simulated by the transport model. Thus, if DMS can cross the tropical tropopause layer (TTL), we suggest that the considerably larger area of the tropical western Pacific Ocean can be a source of sulphur to the stratosphere, which has not been considered as yet.
    Type: Article , PeerReviewed
    Format: text
    Format: text
    DOI: 10.5194/acp-13-8427-2013
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 8
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    A novel method for the measurement of VOCs in seawater using needle traps devices and GC-MS (2014)
    Elsevier
    In:  Marine Chemistry, 159 . pp. 1-8.
    Details
    Publication Date: 2017-08-22
    Description: Highlights: • Development/evaluation of a ‘needle trap device’ (NTD) method for the analysis of VOC in seawater. • First field application of the NTD method in a Norwegian Fjord during a CO2 enrichment study. • Identification and quantification of DMS, isoprene and α-pinene under various pCO2 levels. • In field NTD GC-MS and P&T GC-FPD method comparison for the DMS datasets (r2 = 0.8). Abstract: A novel analytical method using newly developed needle trap devices (NTDs) and a gas chromatograph–mass spectrometer (GC–MS) system was developed. It has been applied for the first time on seawater samples to quantify marine volatile organic compounds (VOCs) relevant to atmospheric chemistry and climate. By purging gases from small water volumes (10 ml) onto sealable NTDs and then desorbing them thermally within the GC injection port, an effective analysis of a wide range of VOCs (isoprene to α-pinene) was achieved within 23 min. Good repeatability (RSDs 〈 16 %), linearity (r2 = 0.96–0.99) and limits of detection in the range of pM were obtained for all examined compounds. Following laboratory validation, the NTD method was applied in a mesocosm field study in a Norwegian Fjord. Nine individual mesocosm ecosystems under different CO2 regimes were examined. Dimethyl sulfide (DMS), isoprene and monoterpenes were identified and quantified in mesocosm seawater. The DMS measurements are compared with parallel measurements provided by an independent P&T GC–FPD system showing good correlation, r2 = 0.8. Our study indicates that the NTD method can be used successfully in place of the traditionally used extraction techniques (P&T, SPME) in marine environments to extend the suite of species typically measured and improve detection limits.
    Type: Article , PeerReviewed
    Format: text
    DOI: 10.1016/j.marchem.2013.12.001
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 9
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    Sulphur compounds, methane, and phytoplankton: interactions along a north-south transit in the western Pacific Ocean (2013)
    Copernicus Publications (EGU)
    In:  Biogeosciences (BG), 10 (5). pp. 3297-3311.
    Details
    Publication Date: 2019-07-09
    Description: Here we present results of the first comprehensive study of sulphur compounds and methane in the oligotrophic tropical West Pacific Ocean. The concentrations of dimethylsuphide (DMS), dimethylsulphoniopropionate (DMSP), dimethylsulphoxide (DMSO), and methane (CH4), as well as various phytoplankton marker pigments in the surface ocean were measured along a north-south transit from Japan to Australia in October 2009. DMS (0.9 nmol l−1), dissolved DMSP (DMSPd, 1.6 nmol l−1) and particulate DMSP (DMSPp, 2 nmol l−1) concentrations were generally low, while dissolved DMSO (DMSOd, 4.4 nmol l−1) and particulate DMSO (DMSOp, 11.5 nmol l−1) concentrations were comparably enhanced. Positive correlations were found between DMSO and DMSP as well as DMSP and DMSO with chlorophyll a, which suggests a similar source for both compounds. Similar phytoplankton groups were identified as being important for the DMSO and DMSP pool, thus, the same algae taxa might produce both DMSP and DMSO. In contrast, phytoplankton seemed to play only a minor role for the DMS distribution in the western Pacific Ocean. The observed DMSPp : DMSOp ratios were very low and seem to be characteristic of oligotrophic tropical waters representing the extreme endpoint of the global DMSPp : DMSOp ratio vs. SST relationship. It is most likely that nutrient limitation and oxidative stress in the tropical West Pacific Ocean triggered enhanced DMSO production leading to an accumulation of DMSO in the sea surface. Positive correlations between DMSPd and CH4, as well as between DMSO (particulate and total) and CH4, were found along the transit. We conclude that both DMSP and DMSO serve as substrates for methanogenic bacteria in the western Pacific Ocean.
    Type: Article , PeerReviewed , info:eu-repo/semantics/article
    Format: text
    Format: text
    DOI: 10.5194/bg-10-3297-2013
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 10
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    Sulphur compounds, methane, and phytoplankton: Interactions along a north-south transit in the western Pacific Ocean (2013)
    In:  [Poster] In: Statusseminar Meeresforschung mit FS SONNE 2013, 13.-15.02.2013, Kiel, Germany .
    Details
    Publication Date: 2013-11-08
    Type: Conference or Workshop Item , NonPeerReviewed
    Format: text
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    OceanRep: Poster
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