Delft3D User Meeting Delft, 03 November 2016 Ingrid Holzwarth Levin Nickelsen Untrim 2 and D-Water Quality for estuarine biogeochemical modeling An example from the Elbe (Germany) Image: Extract of nautical chart ‘Nordsee‘ (2011) Bundesamt für Seeschifffahrt und Hydrographie Delft
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DSD-INT 2016 Untrim^2 and D-Water Quality for estuarine biogeochemical modeling - Holzwarth
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Delft3D User Meeting
Delft, 03 November 2016
Ingrid Holzwarth
Levin Nickelsen
Untrim2 and D-Water Quality for estuarine biogeochemical modeling
An example from the Elbe (Germany)
Image: Extract of nautical chart ‘Nordsee‘ (2011)
Bundesamt für Seeschifffahrt und Hydrographie
Delft
www.baw.de |
Motivation: estuarine management
06-09-2016
Untrim2 and D-Water Quality| Ingrid Holzwarth & Levin Nickelsen| D3D User Meeting 03-Nov-2016
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Year Year
mio m3
Development of the amount of maintenance dredging in the Elbe Estuary Diagram: Water and Shipping Administration (WSV), modified. Download https://www.portaltideelbe.de
2010 2011
End of winter
Early May
Late June
Early August
Begin of winter
Measurements from FGG Elbe (www.fgg-elbe.de, download on
Untrim2 and D-Water Quality| Ingrid Holzwarth & Levin Nickelsen| D3D User Meeting 03-Nov-2016
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Source: BAW 2016, Levin Nickelsen & Günther Lang
Hydrodynamic key figure:
mean tidal range [m]
Period of high oxygen concentration [d]
WQ key figure:
Time period exceeding an O2-threshold [d]
www.baw.de |
Basic study on relevant estuarine processes
Idealized estuary geometry: funnel shape with 1D-x resolution. Background: topography of the Elbe estuary (as used in: Sehili, A., Lang, G., and Lippert, C. (2014): High-resolution
Untrim2 and D-Water Quality| Ingrid Holzwarth & Levin Nickelsen| D3D User Meeting 03-Nov-2016
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www.baw.de |
D-Water Quality
Biogeochemical configuration
06-09-2016
Untrim2 and D-Water Quality| Ingrid Holzwarth & Levin Nickelsen| D3D User Meeting 03-Nov-2016
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www.baw.de |
Model skill:
Dissolved oxygen concentrations at specific positions
S1 (Bunthaus): directly upstream of the Port of Hamburg S2 (Seemannshöft): in the Port area Measurements provided by: Institut fuer Hygiene und Umwelt; licence: dl-de/by-2-0 (www.govdata.de/dl-de/by-2-0); www.wgmn.hamburg.de
06-09-2016
Untrim2 and D-Water Quality| Ingrid Holzwarth & Levin Nickelsen| D3D User Meeting 03-Nov-2016