Bornö Workshop 2016

Ocean Turbulence


The Bornö Workshop 2016 was focused on ocean turbulence, in particular how measurements using microstructure profilers are carried out. The daily schedule included lectures on fjord physics and ocean turbulence, accompanied by student presentations on papers and presentations of microstructure profiles carried out in the fjord.

Observations using CTD, ADCP and MSS were carried out from the bridge during afternoons.

Place and Time

Monday, July 25 to Friday, July 29 at Bornö Stationen, a small retreat in Sweden (see on map).

Group Picture

From left: Lars Czeschel, Carsten Eden, Jakob Burchard, Lars Umlauf, Philipp Jurgenowski, Mads Bruun Poulsen, Søren Nielsen, Markus Jochum, Hannah Kleppin, Manita Chouksey, Selina Müller, Friederike Pollmann, Helen Pillar, Hans Burchard and Xaver Lange.

See more photos


The workshop was funded by CLiSAP, and the Niels Bohr Institute.




Friederike Pollmann: Parsmar and Stigebrandt (1997): Observed Damping of Barotropic Seiches through Baroclinic Wave Drag in the Gullmar Fjord
Manita Chouksey: Arneborg and Liljebladh (2001): The Internal Seiches in Gullmar Fjord. Part I: Dynamics
Hans Burchard: Fundamentals on fjord physics.


Philipp Jurgenowski: Arneborg and Liljebladh (2001): The Internal Seiches in Gullmar Fjord. Part 2: Mixing
Selina Müler: Arneborg et al. (2004): Spatial Variability of Diapycnal Mixing and Turbulent Dissipation Rates in a Stagnant Fjord Basin
Lars Umlauf: Fundamentals on small scale mixing


Søren Nielsen: Arneborg (2002): Mixing Efficiencies In Patchy Turbulence
Xaver Lange: Arneborg and Liljebladh (2009): Overturning and Dissipation Caused by Baroclinic Tidal Flow near the Sill of a Fjord Basin

Thu and fri

Measurements using moored CTD and ADCP.

Breakfast at 8am, lunch at 12:30pm, dinner at 7pm.

Microstructure campaign

MSS data spanning two afternoons of the summerschool. Notice especially what appears to be strong mixing events the second day seen in the dissipation rates, the first event at 1400 hours in the surface and the second at 1530 in the 10dbar depth.

The level of turbidity during the campaign on Tuesday shows enhanced surface and bottom values.

Ensemble mean temperature

Ensemble mean salinity

Ensemble mean stratification, showing a clear two layer structure.

CTD campaign

Fourier analysis was carried out, showing little more than red noise. Keep in mind that the time span was low, barely resolving the barotropic seiche.