IOW Logo

Hypoxic and anoxic regions in the Baltic Sea, 2003

The content of this webpage is part of the Marine Science Report No 100 2016 and should be cited as:

Susanne Feistel, Rainer Feistel, Dietwart Nehring, Wolfgang Matthäus, Günther Nausch, Michael Naumann: Hypoxic and anoxic regions in the Baltic Sea, 1969 - 2015. Meereswiss. Ber., Warnemünde, 100 (2016) doi: 10.12754/msr-2016-0100

All version information and information on further technical development are available via the website

Jan/Feb, 2003: download SVG (computed 2016)
Mar/Apr, 2003: download SVG (computed 2016)
Apr/May, 2003: download SVG (computed 2016)
Jul/Aug, 2003: download SVG (computed 2016)
Oct/Nov, 2003: download SVG (computed 2016)
Apr/May & Oct/Nov, 2003: download SVG (computed 2016)
The most important event for the Baltic Sea in 2003 was the intensive, cold and oxygen-rich inflow of Kattegat water in January terminating the stagnation period lasting since 1995 (FEISTEL et al., 2003c; NAUSCH et al., 2003b, PIECHURA & BESZCZYNSKA-MÖLLER, 2004). However, only half the amount of water and salt was transported during this MBI compared to 1993. The inflow had grasped the Bornholm Basin in February whereas the ventilation of the eastern Gotland Basin was recorded at the end of April. In May an O2 content of 3.96 ml/l could be measured near the bottom in the Gotland Deep (cf. Fig. 3) (NAUSCH et al., 2004).



  • FEISTEL, R., NAUSCH, G., MATTHÄUS, W., HAGEN, E., 2003c: Temporal and spatial evolution of the Baltic deep water renewal in spring 2003. – Oceanologia, 45, 623-642, (accessed June 13th, 2016)
  • NAUSCH, G., MATTHÄUS, W., FEISTEL, R., 2003b: Hydrographic and hydrochemical conditions in the Gotland Deep area between 1992 and 2003, Oceanologia 45(4), 557-569, (accessed June 13th, 2016)
  • NAUSCH, G., FEISTEL, R., LASS, H.-U., NAGEL, K., SIEGEL, H., 2004: Hydrographisch-chemische Zustandseinschätzung der Ostsee 2003. – Meereswiss. Ber. Warnemünde 59, 1-80, doi: 10.12754/msr-2004-0059
  • PIECHURA, J., BESZCZYNSKA-MÖLLER, A., 2004: Inflow waters in the deep regions of the southern Baltic Sea - transport and transformations. – Oceanologia, 46, 113–141. (accessed June 13th, 2016)