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Datasets of project "Biogeochemical flux in the deep sea"

Mostrando recursos 1 - 20 de 168

  1. Bacterial activity in sediments of the deep Arabian Sea

    Boetius, Antje; Ferdelman, Timothy G; Lochte, Karin
    In the Arabian Sea, productivity in the surface waters and particle flux to the deep sea are controlled by monsoonal winds. The flux maxima during the South-West (June-September) and the North-East Monsoon (December-March) are some of the highest particle fluxes recorded with deep-sea sediment traps in the open ocean. Benthic microbial biomass and activities in surface sediments were measured for the first time in March 1995 subsequent to the NE-monsoon and in October 1995 subsequent to the SW-monsoon. These measurements were repeated in April/May 1997 and February/March 1998, at a total of six stations from 1920 to 4420 m water...

  2. Bacterial activity in sediments of the deep Arabian Sea

    Boetius, Antje; Ferdelman, Timothy G; Lochte, Karin
    In the Arabian Sea, productivity in the surface waters and particle flux to the deep sea are controlled by monsoonal winds. The flux maxima during the South-West (June-September) and the North-East Monsoon (December-March) are some of the highest particle fluxes recorded with deep-sea sediment traps in the open ocean. Benthic microbial biomass and activities in surface sediments were measured for the first time in March 1995 subsequent to the NE-monsoon and in October 1995 subsequent to the SW-monsoon. These measurements were repeated in April/May 1997 and February/March 1998, at a total of six stations from 1920 to 4420 m water...

  3. Pore-water chemistry of abyssal Arabian Sea surface sediments

    Grandel, Sibylle; Rickert, Dirk; Schlüter, Michael; Wallmann, Klaus
    Benthic fluxes and pore-water compositions of silicic acid, nitrate and phosphate were investigated for surface sediments of the abyssal Arabian Sea during four cruises (1995-1998). Five sites located in the northern (NAST), western (WAST), central (CAST), eastern (EAST), and southern (SAST) Arabian Sea were revisited during intermonsoonal periods after the NE- and SW-Monsoon. At these sites, benthic fluxes of remineralized nutrients from the sediment to the bottom water of 36-106, 102-350 and 4-16 mmol/m**2/yr were measured for nitrate, silicic acid and phosphate, respectively. The benthic fluxes and pore-water compositions showed a distinct regional pattern. Highest fluxes were observed in the...

  4. Pore-water chemistry of abyssal Arabian Sea surface sediments

    Grandel, Sibylle; Rickert, Dirk; Schlüter, Michael; Wallmann, Klaus
    Benthic fluxes and pore-water compositions of silicic acid, nitrate and phosphate were investigated for surface sediments of the abyssal Arabian Sea during four cruises (1995-1998). Five sites located in the northern (NAST), western (WAST), central (CAST), eastern (EAST), and southern (SAST) Arabian Sea were revisited during intermonsoonal periods after the NE- and SW-Monsoon. At these sites, benthic fluxes of remineralized nutrients from the sediment to the bottom water of 36-106, 102-350 and 4-16 mmol/m**2/yr were measured for nitrate, silicic acid and phosphate, respectively. The benthic fluxes and pore-water compositions showed a distinct regional pattern. Highest fluxes were observed in the...

  5. Nutrients measured in surface water during cruise SO97

    Suess, Erwin; Flügge, Arnim

  6. Nutrients measured in surface water during cruise SO97

    Suess, Erwin; Flügge, Arnim

  7. Nutrients measured in surface water during cruise SO97

    Suess, Erwin; Flügge, Arnim

  8. Methane in air measured during cruise SO97/3

    Rehder, Gregor

  9. Methane in air measured during cruise SO97/3

    Rehder, Gregor

  10. Methane in surface water measured during cruise SO97/3

    Rehder, Gregor

  11. Methane in surface water measured during cruise SO97/3

    Rehder, Gregor

  12. Methane concentration at hydrographic station 582

    Rehder, Gregor

  13. Methane concentration at hydrographic station 582

    Rehder, Gregor

  14. Methane concentration at hydrographic station 581

    Rehder, Gregor

  15. Methane concentration at hydrographic station 581

    Rehder, Gregor

  16. Methane concentration at hydrographic station 580

    Rehder, Gregor

  17. Methane concentration at hydrographic station 580

    Rehder, Gregor

  18. Methane concentration at hydrographic station 579

    Rehder, Gregor

  19. Methane concentration at hydrographic station 579

    Rehder, Gregor

  20. Methane concentration at hydrographic station 578

    Rehder, Gregor

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