GLORIA

GEOMAR Library Ocean Research Information Access

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
Document type
Keywords
Publisher
Language
Years
  • 1
    Book
    Book
    Biogeochemistry of dissolved carbohydrates in the Arctic : = Biogeochemie gelöster Kohlenhydrate in der Arktis (2001)
    Bremerhaven : Alfred-Wegener-Institut für Polar- und Meeresforschung
    Details Availability
    Keywords: Dissertation ; Hochschulschrift ; Nordpolarmeer ; Gelöster organischer Stoff ; Kohlenhydrate ; Meereschemie ; Biogeochemie ; Nährstoffhaushalt ; Biogeochemie ; Nordpolarmeer ; Nordpolarmeer ; Gelöster organischer Stoff ; Kohlenhydrate ; Meereschemie ; Biogeochemie ; Nährstoffhaushalt
    Type of Medium: Book
    Pages: VIII, 106 Seiten , Illustrationen, Diagramme, Karten
    Series Statement: Berichte zur Polar- und Meeresforschung 396
    URL: http://www.gbv.de/dms/bs/toc/331659239.pdf
    URL: http://www.gbv.de/dms/bs/toc/331659239.pdf
    RVK:
    RY 20075
    Language: English
    Note: Farbversion unter: http://elib3.suub.uni-bremen.de/publications/dissertations/E-Diss154_Engbrodt.pdf , Literaturverz. S. 81 - 91 , Zugl.: Bremen, Univ., Diss., 2001 , Zsfassung in dt. u. engl. Sprache
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    GEOMAR CATALOGUE
    Link to Library Catalog
    get availability status
  • 2
    facet.materialart.
    Unknown
    From pole to pole: 33 years of physical oceanography onboard R/V Polarstern (2017)
    Copernicus Publications (EGU)
    In:  Earth System Science Data, 9 (1). pp. 211-220.
    Details
    Publication Date: 2020-02-06
    Type: Article , PeerReviewed
    Format: text
    DOI: 10.5194/essd-9-211-2017
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 3
    facet.materialart.
    Unknown
    (Table 2) Composition and concentration of total hydrolyzable neutral sugars in samples taken during POLARSTERN cruise ARK-XIII/3
    PANGAEA
    Details
    Publication Date: 2023-05-12
    Keywords: Arabinose; ARK-XIII/3; CTD/Rosette; CTD-RO; Date/Time of event; DEPTH, water; Event label; Fucose; Galactose; Glucose; Greenland Sea; Latitude of event; Longitude of event; Mannose; Neutral sugars, total hydrolyzable as carbon; Polarstern; PS45; PS45/017; PS45/038; PS45/046; PS45/056-2; PS45/096; PS45/167; Rhamnose; Sample type; Station label; Surface water sample; SWS; Xylose
    Type: Dataset
    Format: text/tab-separated-values, 120 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 4
    facet.materialart.
    Unknown
    (Table 1) Temperature, salinity and dissolved organic carbon during POLARSTERN cruise ARK-XIII/3
    PANGAEA
    Details
    Publication Date: 2023-05-12
    Keywords: ARK-XIII/3; Carbon, organic, dissolved; CTD/Rosette; CTD-RO; Date/Time of event; DEPTH, water; Event label; Greenland Sea; Latitude of event; Longitude of event; Percentage; Polarstern; PS45; PS45/013; PS45/017; PS45/020; PS45/038; PS45/046; PS45/056-2; PS45/060; PS45/062-2; PS45/096; PS45/106; PS45/133; PS45/167; Salinity; Sample type; South Atlantic Ocean; Station label; Surface water sample; SWS; Temperature, water
    Type: Dataset
    Format: text/tab-separated-values, 76 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 5
    facet.materialart.
    Unknown
    Water temperature, salinity, DOC content and THNS concentration in samples taken during POLARSTERN cruise to the Fram Strait and Greenland Sea (2005)
    PANGAEA
    In:  Supplement to: Engbrodt, Ralph; Kattner, Gerhard (2005): On the biogeochemistry of dissolved carbohydrates in the Greenland Sea (Arctic). Organic Geochemistry, 36(6), 937-948, https://doi.org/10.1016/j.orggeochem.2004.12.007
    Details
    Publication Date: 2023-10-28
    Description: Dissolved organic matter (DOM) was isolated with XAD-2 and 4 resins from different water masses of the Greenland Sea and Fram Strait. The contribution of XAD-extractable dissolved organic carbon (DOC), operationally defined as 'recalcitrant' or humic substances, to total DOC was in the range of 45 ± 9% in surface waters and 60 ± 6% in deep waters. The carbohydrate concentration and composition were determined using the l-tryptophan/sulfuric acid method (for the bulk carbohydrate concentration, TCHO) and high performance anion-exchange chromatography after sulfuric acid hydrolysis (for the distribution of total hydrolysable neutral sugars, THNS). Carbohydrates contributed up to 6.8% to both total and recalcitrant DOC. TCHO contribution to total DOC decreased with depth from on average 4.1 ± 1.2% in surface waters to 2.2 ± 1.0% in deep waters, whereas the THNS contribution was similar in both layers, accounting for 2.5 ± 1.6% (surface) and 2.4 ± 0.2% (at depth). TCHO contribution to XAD-extractable DOC also decreased with depth from 4.5 ± 1.7% to 2.1 ± 1.0%, whereas THNS contribution was almost constant, with yields of 0.5 ± 0.3% for surface samples and 0.6 ± 0.1% at depth. The molecular size distribution of the recalcitrant DOM showed for all fractions a clear trend towards small molecules in the deep sea. More than half of the XAD-extractable carbohydrates of surface samples and more than 70% of deep sea samples were found in the nonpolar fraction from XAD, which was eluted with methanol. Glucose was the dominant carbohydrate in the surface water samples, whereas in the deep sea the composition was more uniform. In the XAD extracts, the compositions were less variable than in the original samples. The neutral sugar composition, in particular glucose and the deoxysugars, is indicative of the diagenetic state of the extracted DOM. The molar ratio (fucose + rhamnose)/(arabinose + xylose) was lowest for deep sea extractable DOM, indicating a high contribution of material modified by microorganisms. The THNS composition and distribution reveal that “recalcitrant” carbohydrates are heteropolysaccharides, carbohydrate units incorporated into a framework of a highly nonpolar structure with a lack of functional groups.
    Keywords: Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas; SPP1158
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 6
    facet.materialart.
    Unknown
    (Table 1) Salinity and dissolved organic carbon concentration of marine water (ANT-XIX/2) and mangrove porewater (Brazil) (2005)
    PANGAEA
    In:  Supplement to: Koch, Boris P; Witt, Matthias; Engbrodt, Ralph; Dittmar, Thorsten; Kattner, Gerhard (2005): Molecular formulae of marine and terrigenous dissolved organic matter detected by electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry. Geochimica et Cosmochimica Acta, 69(13), 3299-3308, https://doi.org/10.1016/j.gca.2005.02.027
    Details
    Publication Date: 2023-10-28
    Description: The chemical structure of refractory marine dissolved organic matter (DOM) is still largely unknown. Electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry (ESI FT-ICR-MS) was used to resolve the complex mixtures of DOM and provide valuable information on elemental compositions on a molecular scale. We characterized and compared DOM from two sharply contrasting aquatic environments, algal-derived DOM from the Weddell Sea (Antarctica) and terrigenous DOM from pore water of a tropical mangrove area in northern Brazil. Several thousand molecular formulas in the mass range of 300-600 Da were identified and reproduced in element ratio plots. On the basis of molecular elemental composition and double-bond equivalents (DBE) we calculated an average composition for marine DOM. O/C ratios in the marine samples were lower (0.36 ± 0.01) than in the mangrove pore-water sample (0.42). A small proportion of chemical formulas with higher molecular mass in the marine samples were characterized by very low O/C and H/C ratios probably reflecting amphiphilic properties. The average number of unsaturations in the marine samples was surprisingly high (DBE = 9.9; mangrove pore water: DBE = 9.4) most likely due to a significant contribution of carbonyl carbon. There was no significant difference in elemental composition between surface and deep-water DOM in the Weddell Sea. Although there were some molecules with unique marine elemental composition, there was a conspicuous degree of similarity between the terrigenous and algal-derived end members. Approximately one third of the molecular formulas were present in all marine as well as in the mangrove samples. We infer that different forms of microbial degradation ultimately lead to similar structural features that are intrinsically refractory, independent of the source of the organic matter and the environmental conditions where degradation took place.
    Keywords: ANT-XIX/2; AWI; Caete_mangr; Carbon, organic, dissolved; CTD, Seabird; CTD-R; Date/Time of event; DEPTH, water; Equatorial West Atlantic; Event label; High temperature catalytic oxidation; Latitude of event; Longitude of event; Percentage; Polarstern; Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas; PS61; PS61/024-1; PS61/027-1; PS61/031-1; Salinity; Sample type; SPP1158; Station label; Water sample; Weddell Sea; WS
    Type: Dataset
    Format: text/tab-separated-values, 35 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 7
    facet.materialart.
    Unknown
    Physical oceanography on board of POLARSTERN (1983-11-22 to 2016-02-14) (2016)
    PANGAEA
    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven | Supplement to: Driemel, Amelie; Fahrbach, Eberhard; Rohardt, Gerd; Beszczynska-Möller, Agnieszka; Boetius, Antje; Budéus, Gereon; Cisewski, Boris; Engbrodt, Ralph; Gauger, Steffen; Geibert, Walter; Geprägs, Patrizia; Gerdes, Dieter; Gersonde, Rainer; Gordon, Arnold L; Grobe, Hannes; Hellmer, Hartmut H; Isla, Enrique; Jacobs, Stanley S; Janout, Markus A; Jokat, Wilfried; Klages, Michael; Kuhn, Gerhard; Meincke, Jens; Ober, Sven; Østerhus, Svein; Peterson, Ray G; Rabe, Benjamin; Rudels, Bert; Schauer, Ursula; Schumacher, Stefanie; Schröder, Michael; Sieger, Rainer; Sildam, Jüri; Soltwedel, Thomas; Stangeew, Elena; Stein, Manfred; Strass, Volker H; Thiede, Jörn; Tippenhauer, Sandra; Veth, Cornelis; von Appen, Wilken-Jon; Weirig, Marie-France; Wisotzki, Andreas; Wolf-Gladrow, Dieter A; Kanzow, Torsten (2017): From pole to pole: 33 years of physical oceanography onboard R/V Polarstern. Earth System Science Data, 9(1), 211-220, https://doi.org/10.5194/essd-9-211-2017
    Details
    Publication Date: 2023-10-18
    Description: Measuring temperature and salinity profiles in the world's oceans is crucial to understanding ocean dynamics and its influence on the heat budget, the water cycle, the marine environment and on our climate. Since 1983 the German research vessel and icebreaker Polarstern has been the platform of numerous CTD (conductivity, temperature, depth instrument) deployments in the Arctic and the Antarctic. We report on a unique data collection spanning 33 years of polar CTD data. In total 131 data sets (1 data set per cruise leg) containing data from 10 063 CTD casts are now freely available. During this long period five CTD types with different characteristics and accuracies have been used. Therefore the instruments and processing procedures (sensor calibration, data validation, etc.) are described in detail. This compilation is special not only with regard to the quantity but also the quality of the data - the latter indicated for each data set using defined quality codes. The complete data collection includes a number of repeated sections for which the quality code can be used to investigate and evaluate long-term changes. Beginning with 2010, the salinity measurements presented here are of the highest quality possible in this field owing to the introduction of the OPTIMARE Precision Salinometer.
    Keywords: Author(s); AWI_PhyOce; Campaign; Date/time end; Date/time start; Method comment; Number of observations; Ocean and sea region; Persistent Identifier; Physical Oceanography @ AWI; Principal investigator; Quality code; Uniform resource locator/link to image; Uniform resource locator/link to reference
    Type: Dataset
    Format: text/tab-separated-values, 1695 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 8
    facet.materialart.
    Unknown
    Physical oceanography during POLARSTERN cruise ANT-XIX/2 (2002)
    PANGAEA
    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Details
    Publication Date: 2024-02-27
    Keywords: ANT-XIX/2; AWI_Paleo; Computed; CTD, Seabird; CTD, Sea-Bird SBE 911plus; CTD/Rosette; CTD-R; CTD-RO; Date/Time of event; DEPTH, water; Elevation of event; Event label; Fluorescence, chlorophyll; Fluorometer, Seapoint; Latitude of event; Lazarev Sea; Longitude of event; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Polarstern; PS61; PS61/022-1; PS61/024-1; PS61/025-2; PS61/027-2; PS61/029-1; PS61/030-1; PS61/031-1; PS61/034-1; PS61/036-1; PS61/039-1; Salinity; Temperature, water; Weddell Sea
    Type: Dataset
    Format: text/tab-separated-values, 41664 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 9
    facet.materialart.
    Unknown
    From pole to pole: 33 years of physical oceanography onboard R/V Polarstern (2017)
    Earth System Science Data
    In:  EPIC3Earth System Science Data, Earth System Science Data, 9(1), pp. 211-220, ISSN: 1866-3508
    Details
    Publication Date: 2018-08-10
    Description: Measuring temperature and salinity profiles in the world's oceans is crucial to understanding ocean dynamics and its influence on the heat budget, the water cycle, the marine environment and on our climate. Since 1983 the German research vessel and icebreaker Polarstern has been the platform of numerous CTD (conductivity, temperature, depth instrument) deployments in the Arctic and the Antarctic. We report on a unique data collection spanning 33 years of polar CTD data. In total 131 data sets (1 data set per cruise leg) containing data from 10 063 CTD casts are now freely available at doi:10.1594/PANGAEA.860066. During this long period five CTD types with different characteristics and accuracies have been used. Therefore the instruments and processing procedures (sensor calibration, data validation, etc.) are described in detail. This compilation is special not only with regard to the quantity but also the quality of the data – the latter indicated for each data set using defined quality codes. The complete data collection includes a number of repeated sections for which the quality code can be used to investigate and evaluate long-term changes. Beginning with 2010, the salinity measurements presented here are of the highest quality possible in this field owing to the introduction of the OPTIMARE Precision Salinometer.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 10
    facet.materialart.
    Unknown
    Biogeochemie gelöster Kohlenhydrate in der Arktis (2010)
    Univ. Bremen
    Details
    Publication Date: 2021-03-29
    Description: thesis
    Keywords: 551.9 ; VJE 200 ; VJC 210 ; Geochemie Lebender Materie ; Geochemie des Meerwassers
    Language: English
    Type: monograph , publishedVersion
    Format: application/pdf
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    CITATION GEO-LEO
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...