WP B-Cluster: Process Studies and Observations
To support the modelling efforts in AMBER a sound estimate of sources and sinks of nutrients is elemental. In Part B, WPs will characterize and estimate nutrient inputs from rivers and ground water and their transformations and removal in coastal seas and lagoons of environments with contrasting nitrogen loads.
| WP | Title and Aim | Responsible PI | Partners |
| B.1 |
Estimate of N-removal in contrasting estuarine systems Loss rates of nitrogen through denitrification and anammox in relation to the total nitrate loads of the river will be determined in systems contrasting in nutrient loads and residence times: the Oder River and Lagoon, the Nemunas River with the Curonian lagoon at the southern Baltic Kalix River in northern Sweden. |
Susanna Hietanen (UH) | UH, IOW |
| B.2 |
DOM input and transformation in Baltic Sea estuaries Understand the fate of dissolved organic matter (DOM) in boreal/subarctic and eutrophied estuaries by means of stable isotopes (Oder, Nemunas, Kalix) |
Christoph Humborg (ITM) | ITM, IOW, UH |
| B.3 |
Isotopic signature in nitrate for source identification Characterization of the isotopic signature of the river nitrate in relation to the land use through the sampling of the Oder, Nemunas, and Kalix. |
Maren Voss (IOW) |
UH, IOW, ITM |
| B.4 |
Identification and quantification of submarine groundwater discharge Identification of sites of significant SGD and quantification of groundwater contributed to the coastal environments of the Baltic Sea leading to a hydrological mass balance. |
Michael Böttcher (IOW) | IOW, AWI, University of Greifswald, IOPAS |
| B.5 |
Geochemical composition of groundwater seepage Characterization of the geochemical (nutrients, DOM, trace metals) and isotopic (C, S, N) composition of groundwater contributed to the coastal environment at seepage sites. |
Michael Böttcher (IOW) | IOW, IOPAS |
| B.6 |
Groundwater seepage impact on biota Investigation on the impact of groundwater seepage on the existing flora and fauna on a seasonal scale and the effects of SGD on biodiversity in coastal areas of the Baltic Sea |
Jan-Marcin Weslawski (IOPAS) | IOPAS, IOW |