BioGeoChemistry of Tidal Flats Sub-Project 3:
    Budget and States of the Backbarrier Tidal Flat Water Column

    Goal of the Project
    Who we are
    Events
    Co-operation
    Methods
    Ship Cruises
    Time-Series Station
    Publications

      from our project
      selected references
    Gallery


    Welcome to the Project
    Budget and States of the Backbarrier Tidal Flat Water Column

    Goal of the Project

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    The East Frisian tidal flats are continuously influenced by open marine (from the North Sea) and on-shore processes. In this sub-project, we want to elucidate whether the input/output of dissolved and particulate matter between the backbarrier and offshore areas is presently in a steady state or whether the tidal flats suffer a net loss of material. We intend to study the seasonal dynamics of seaward and landward inputs as well as their relation to the retention or mobilisation of specific compounds.

    These questions are addressed from three viewpoints:

    • Characterisation, quantification and input/output balance of the dissolved and particulate load between the backbarrier tidal flats and the open North Sea through the inlet on tidal and seasonal cycles, also taking into account extreme events (severe storms and sea ice)
    • Characterisation and quantification of the dissolved and particulate input from small coastal tributaries and from the porewater of the sediments into the backbarrier tidal flat system on a seasonal scale
    • Characterisation and quantification of the biogeochemical transformation of the dissolved and particulate matter in the water column of the backbarrier tidal area.
    More details are found here.
      Elements of Sub-project 3:
      Budget and States of the
      Backbarrier Tidal Flat Water Column

      See the
      Project Plan Phase 1 (Oct 2000, 2.1 MB pdf-file)
      Project Report Phase 1 (Sept 2003, 4.9 MB pdf-file)
      Project Plan Phase 2 (Oct 2003, 480 kB pdf-file)
      for a full description (in German)


    Project members

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    name email
    phone
    room
    discipline
    Badewien, Thomas Dr.
    ++49 (0)441 798-3518
    W2 2-204
    Marine Physics
    Beck, Melanie
    ++49 (0)441 798-2534
    W15 2-223
    Microbiogeochemistry
    Braun, Axel
    ++49 (0)441 798-3519
    W2 2-206
    Marine Physics
    Brumsack, Hans Prof.
    ++49 (0)441 798-3584
    W15 2-221
    Microbiogeochemistry
    Grunwald, Maik
    ++49 (0)441 798-2534
    W15 2-223
    Microbiogeochemistry
    Lübben, Andrea
    ++49 (0)441 798-3519
    W2 2-206
    Marine Physics
    Mehrtens, Christina
    ++49 (0)441 798-3515
    W2 2-201
    Marine Physics
    Ötken, Ingo
    ++49 (0)441 798-3519
    W2 2-206
    Mechanics & Electronics
    Reuter, Rainer Dr.
    ++49 (0)441 798-3522
    W2 2-209
    Marine Physics
    Wachowicz, Bernhard
    ++49 (0)441 798-3516
    W2 2-202
    Mechanics


    Events

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      Weekly project meeting:
      • Wednesday 10-12h

      Ship cruises in 2007:
      • 05-09 Feb: R/V Senckenberg, TP 3: methods of suspended matter analysis
      • 16-20 Apr: R/V Senckenberg, TP 3: maintenance of time-series station
      • 10-15 May: R/V Heincke, German Bight, student excursion
      • 10-14 Sept: R/V Senckenberg, TP B
      • 15-19 Oct: R/V Senckenberg, TP C: maintenance of time-series station

      Symposia, Workshops:
      • 3rd EARSeL Workshop Remote Sensing of the Coastal Zone, 07-09 June 2007, Bolzano, Italy
      • ENVISAT Symposium 2007, 23 - 27 April 2007, Montreux, Switzerland


    Co-operation

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      Institutes:
      • Forschungsstation Senckenberg am Meer, Wilhelmshaven, Germany
        Suspended particles, sediments
      • GKSS Research Centre, Institute for Coastal Research, Geesthacht, Germany
        Substances and processes in the water column
      • Sielacht Esens, Neuharlingersiel, Germany
        Freshwater discharge in to the back-barrier tidal flat
      • University of South Carolina, USA
        Tim Shaw: Geochemistry and element analysis.
      • Netherlands Institute for Sea Research, Texel, The Netherlands
        Marcel Wernand: Bio-optics of tidal flat regions

      Companies:
      • 4H Jena Engineering, Jena, Germany
        time-series station


    Methods

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      Water and dissolved substances
      Compound Parameter Method Symbol
      in situ: CAPITALS
      seawater temperature, salinity CTD probe CTD
      oxygen, pH CTD probe CTD
      gelbstoff absorption multispectral transmissometer MST
      downwelling irradiance, upwelling radiance multispectral radiometer RAD
      gelbstoff absorption spectrophotometer phot
      gelbstoff fluorescence spectrofluorometer flu
      Ba, Fe, Mn, Mo, U, V ICP-MS diss elem
      alkalinity gran-titration alk
      DOC combustion/IR-detection doc
      inorganic nutrients (nitrite, nitrate, ammonia, reactive phosphate, silicate) wet chemical analysis, photometry nut
      dissolved organic phosphorus wet chemical analysis, photometry dop
      porewater Ba, Co, Cr, Fe, Mn, Mo, Sb, U, V ICP-MS porewater elem
      alkalinity gran titration alk
      DOC combustion/IR-detection doc
      freshwater temperature, salinity CTD probe CTD
      gelbstoff absorption spectrophotometer phot
      gelbstoff fluorescence spectrofluorometer flu
      major and trace elements ICP-OES, ICP-MS diss elem
      anions ion chromatography anion
      alkalinity gran titration alk
      DOC combustion/IR detection doc
      inorganic nutrients (nitrite, nitrate, ammonia, reactive phosphate, silicate) wet chemical analysis, photometry nut
      dissolved organic phosphorus wet chemical analysis, photometry dop

      Suspended particles (>0.45 µm)
      Compound Parameter Method Symbol
      in situ: CAPITALS
      seawater/freshwater major and trace elements (e.g. Al, Fe, P, Cd, Mn, Pb, Zr, REE) ICP-OES, ICP-MS part elem
      stable Pb isotopes ICP-MS pb
      TC, TIC (TOC) coulometry toc
      suspended matter gravimetry spm
      phosphorus fractionated (organic P, inorganic P) wet chemical analysis, photometry pip, pop
      total chlorophyll fluorimetry of extracts tchl
      seawater suspended matter multispectral transmissometer MST
      chlorophyll multispectral transmissometer MST

      Sediments
      Compound Parameter Method Symbol
      major and trace elements (e.g. Si, Al, Ca, Fe, P, Co, Cr, Mn, Zn, Zr) XRF sed elem
      stable Pb isotopes ICP-MS pb
      TC, TIC (TOC) coulometry toc


    Ship Cruises

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      Date Area Parameters
      see Methods
      28 Aug - 1 Sept 1999 German Bight CTD-MST-FLU-flu-phot
      diss/part elem-alk-doc
      27-30 Sept 1999 Spiekeroog backbarrier tidal flat CTD-MST-flu
      diss/part elem-alk-doc
      24-27 Jan 2000 Spiekeroog backbarrier tidal flat CTD-MST-flu-phot
      diss/part elem-alk-doc
      17-19 Apr 2000 Spiekeroog backbarrier tidal flat CTD-MST-flu-phot
      diss/part/porewater elem-alk-doc
      7-11 Aug 2000 Spiekeroog backbarrier tidal flat CTD-MST-flu-phot
      diss/part elem-alk-doc
      9-22 Sept 2000 German Bight, Skagerrak CTD-MST-FLU-flu-phot
      5-13 Oct 2000 German Bight CTD-MST-FLU-flu-phot
      5-8 June 2001 Spiekeroog backbarrier tidal flat CTD-flu
      24-28 Sept 2001 Spiekeroog backbarrier tidal flat CTD-MST-flu
      7-12 Oct 2001 north of Spiekeroog
      rivers Elbe and Weser
      CTD-MST-FLU-flu-phot
      diss/part elem-alk-doc
      8-10 Oct 2001 Spiekeroog backbarrier tidal flat CTD-MST-flu
      diss/part/porewater elem-alk-doc
      13-15 Feb 2002 Spiekeroog backbarrier tidal flat CTD-MST-flu
      diss/part/porewater elem-alk-doc
      27-31 May 2002 Spiekeroog backbarrier tidal flat CTD-MST-flu
      diss/part elem-alk-doc
      20-23 August 2002 Spiekeroog backbarrier tidal flat CTD-MST-flu
      diss/part/porewater elem-alk-doc
      7-11 October 2002 north of Spiekeroog
      German Bight
      CTD-MST-FLU-flu-phot
      diss/part/porewater elem-alk-doc
      18-22 November 2002 Spiekeroog backbarrier tidal flat CTD-MST-flu
      diss/part/porewater elem-alk-doc
      10-13 February 2003 Spiekeroog backbarrier tidal flat CTD-flu
      diss/part/porewater elem-alk-doc
      22-23 July 2003 Spiekeroog backbarrier tidal flat CTD-MST-flu
      diss/part/porewater elem-alk-doc
      11-14 July 2003 Spiekeroog backbarrier tidal flat CTD-MST-flu
      diss/part/porewater elem-alk-doc
      10-14 November 2003 Spiekeroog backbarrier tidal flat CTD-MST-flu
      diss/part/porewater elem-alk-doc
      19-22 January 2004 Spiekeroog backbarrier tidal flat CTD-MST-flu
      diss/part/porewater elem-alk-doc
      03-07 May 2004 north of Spiekeroog
      German Bight
      CTD-MST-FLU-flu-phot
      diss/part elem-alk-doc
      04-09 October 2004 north of Spiekeroog
      German Bight
      CTD-MST-FLU-flu-phot
      diss/part elem-alk-doc
      08-12 November 2004 Spiekeroog backbarrier tidal flat CTD-MST-flu
      diss/part/porewater elem-alk-doc
      07-13 January 2005 Spiekeroog backbarrier tidal flat CTD-flu
      diss/part/porewater elem-alk-doc
      16-20 March 2005 (1) north of Spiekeroog
      German Bight
      FLU-flu-phot
      diss/part elem-alk-doc
      21-23 March 2005 (2) north of Spiekeroog
      German Bight
      CTD-MST-FLU-flu-RAD
      diss/part elem-alk-doc
      25-28 April 2005 Spiekeroog backbarrier tidal flat flu
      diss/part/porewater elem-alk-doc
      18-22 July 2005 north of Spiekeroog
      German Bight
      FLU-flu-RAD
      diss/part elem-alk-doc
      18-22 July 2005 Spiekeroog backbarrier tidal flat MST-flu-RAD
      diss/part/porewater elem-alk-doc
      14-18 November 2005 Spiekeroog backbarrier tidal flat CTD-MST-flu
      diss/part/porewater elem-alk-doc
      15-19 November 2005 north of Spiekeroog
      German Bight
      CTD-MST-FLU-flu-RAD
      diss/part elem-alk-doc
      27-30 March 2006 north of Spiekeroog
      German Bight
      CTD-MST-FLU-flu-RAD-phot
      02-05 May 2006 Spiekeroog backbarrier tidal flat CTD-MST-FLU-flu-RAD
      10-14 July 2006 Spiekeroog backbarrier tidal flat CTD-MST-FLU-flu-RAD
      15-21 August 2006 north of Spiekeroog
      German Bight
      CTD-MST-FLU-flu-RAD-phot
      18-22 Sept 2006 north of Spiekeroog
      German Bight
      CTD-MST-FLU-flu-RAD
      23-27 Sept 2006 Spiekeroog backbarrier tidal flat CTD-MST-FLU-flu-RAD


    Publications

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    Steigenberger S, F Terjung, H-P Grossart & R Reuter (2004) Blue-fluorescence of NADPH as an indicator of marine primary production. EARSeL eProceedings 3(1), 18-25, 2004. Download 500 kB pdf file.

    Koelsch S, Dellwig O, Grunwald M, Reuter R & Brumsack HJ (2004) Geochemistry of DOC-rich coastal watercourses in northwest Germany. The 227th ACS National Meeting, Anaheim, CA, March 28-April 1, 2004; Abstract

    Schröder M, Barth H & Reuter R (2003) Impact of Inelastic Scattering on the Underwater Daylight in the Ocean: Model Evaluation, Validation and First Results. Applied Optics, 42(21), 4244-4260. Download 275 kB pdf file

    Dellwig O, F Terjung, H-J Brumsack & R Reuter (2003) Understanding the Bioreactor Wadden Sea: a Geochemical and Physical Approach. Berichte - Forschungszentrum Terramare, 12, 47-50. Download 500 kB pdf file

    Kölsch S, S Gebhardt, F Terjung, G Liebezeit, R Reuter J Rullkötter & H-J Brumsack (2003) Freshwater Discharge into the East Frisian Wadden Sea: Geochemistry of Humic Matter-Rich Waters. Berichte - Forschungszentrum Terramare, 12, 71-74, 2003 Download 270 kB pdf file

    Koelsch S, Dellwig O, Reuter R, Terjung F & Brumsack H-J (2002) Water column signatures of the NW German backbarrier tidal flats: sources and processes. DMG Jahrestagung 2002, Hamburg, Conference Proceedings; Abstract

    Dellwig O, Hinrichs J & Brumsack HJ (2002) Geochemical indications for changes in sedimentation in the German Wadden Sea from the Holocene to the present. DMG Jahrestagung 2002, Hamburg, Conference Proceedings; Abstract

    Brumsack HJ, Dellwig O, Koelsch S, Reuter R & Terjung F (2002) Are water column signatures of the NW German backbarrier tidal flat influenced by microbial activity? Goldschmidt Conference 2002, Davos, Conference Proceedings; Abstract

    Dellwig O, Böttcher ME, Lipinski M & Brumsack H-J (2002) Trace metals in Holocene coastal peats and their relation to pyrite formation (NW Germany). Chemical Geology, 182, 423-442

    Hinrichs J, Dellwig O & Brumsack H-J (2002) Pb in sediments and SPM of the German Bight: natural versus anthropogenic origin. Applied Geochemistry, 17, 621-632

    Barth H, Reuter R & Schröder M (2001) Measurement and simulation of substance specific contributions of phytoplankton, gelbstoff, and mineral particles to the underwater light field in coastal waters. EARSeL eProceedings 1, 165-174. Download 4.4 MB pdf file.

    Dellwig O, Hinrichs J, Hild A & Brumsack H-J (2000) Changing sedimentation in tidal flat sediments of the Southern North Sea from the Holocene to the present: A geochemical approach. Journal of Sea Research, 44, 195-208

    Gehm G, Wilken M, Liebezeit G (2000) Temporal and spatial high resolution analysis of nutrient dynamics in the near bottom layer of the Wadden Sea. Senckenbergiana marit 30: 105-114

    Schnetger B, Hinrichs J, Dellwig O, Shaw T & Brumsack H-J (2000) The significance of radionuclides and trace elements in a back barrier tidal area: Results from the German Wadden. In: Distribution and speciation of radionuclides in the environment (Eds. J Inaba, S Hisumatsu & Y Ohtsuka). Proc Int Workshop Distribution and Speciation of Radionuclides in the Environment. Rokkasho, Aomori, Japan, 10/2000, pp. 99-106

    Heuermann R, Reuter R & Willkomm R (1999) RAMSES: A modular multispectral radiometer for light measurements in the UV and VIS. In: Environmental Sensing and Applications. Proc. EUROPTO Series, SPIE Vol 3821, 279-285. Download 1.5 MB pdf file.

    Liebezeit, G, Kraul T (1999) Analytical fractionation of particulate phosphorus in the Wadden Sea, southern North Sea. Senckenbergiana marit 30: 67-72

    Böttcher ME, Oelschläger B, Höpner Th, Brumsack H-J, Rullkötter J (1998) Sulfate reduction related to the early diagenetic degradation of organic matter and "black spot" formation in tidal sandflats of the German Wadden Sea (southern North Sea): stable isotope (13C, 34S, 18O) and other geochemical results. Org Geochem 29: 1517-1530

    Hild A (1997) Geochemie der Sedimente und Schwebstoffe im Rückseitenwatt von Spiekeroog und ihre Beeinflussung durch biologische Aktivität. Forschungszentrum Terramare Berichte Nr 5, 33 S und Anhang. Dissertation, Universität Oldenburg

    Barth H, Grisard K, Holtsch K, Reuter R, Stute U (1997) A polychromatic transmissometer for in situ measurements of suspended particles and gelbstoff in water. Appl Optics 36: 7919-7928

    Liebezeit G, Behrends B, Kraul T (1996) Variability of nutrients and particulate matter in backbarrier tidal flats of the East Frisian Wadden Sea. Senckenbergiana marit 26: 195-202


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