Bottomstress in the Baltic Proper 1999-2000

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Creator/Principal investigator(s):

Anette Jönsson - SMHI - Swedish Meteorological and Hydrological Institute

Description:

Calculations of bottom friction velocity due to waves for five different particle sizes. Wave data are modelled with HYPAS, a second generation spectral wave model (Günther, Rosenthal, 1995). HYPAS is forced by MESAN (Häggmark et al. 2000). Ice is not included in the calculation. Used equations can be found in Danielsson et al (2007) Resuspension patterns in the Baltic Proper. Journal of Sea Research, 57, 257-269.

Notes: HYPAS wave model is used for wave data. SMHI set up is used and it is forced by MESAN data. The modelled winds are known to be slightly underestimated why the wave field might be the same. Ice is not included, which gives that the waves are exagerrated in times when there are ice.

Responsible department/unit:

SMHI - Swedish Meteorological and Hydrological Institute

Creator/Principal investigator(s):

Anette Jönsson - SMHI - Swedish Meteorological and Hydrological Institute

Identifiers:

SND-ID: ECDS 0100

Description:

Calculations of bottom friction velocity due to waves for five different particle sizes. Wave data are modelled with HYPAS, a second generation spectral wave model (Günther, Rosenthal, 1995). HYPAS is forced by MESAN (Häggmark et al. 2000). Ice is not included in the calculation. Used equations can be found in Danielsson et al (2007) Resuspension patterns in the Baltic Proper. Journal of Sea Research, 57, 257-269.

Notes: HYPAS wave model is used for wave data. SMHI set up is used and it is forced by MESAN data. The modelled winds are known to be slightly underestimated why the wave field might be the same. Ice is not included, which gives that the waves are exagerrated in times when there are ice.

Language:

English

Time period(s) investigated:

1999 — 2000

Geographic spread:

Geographic location: Baltic Sea

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Publications

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Å Danielsson, A Jönsson & L Rahm (2007) Resuspension patterns in the Baltic Proper. Journal of Sea Research, 57, 257-269

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Version 1.0:

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License:

Creative Commons License

Bottomstress in the Baltic Proper 1999-2000

Suggested citation:

Anette Jönsson. SMHI - Swedish Meteorological and Hydrological Institute (2019). <em>Bottomstress in the Baltic Proper 1999-2000</em>. Swedish National Data Service. Version 1.0. <a href="https://doi.org/10.5879/88g2-ng30">https://doi.org/10.5879/88g2-ng30</a>

Creator/Principal investigator(s):

Anette Jönsson - SMHI - Swedish Meteorological and Hydrological Institute

Description:

The dataset variables are:
Um - maximum orbital velocity at the bottom
Us006 - is the Shields parameter (non-dimensionalized bottom stress) for grain size diameter 0.06 mm
Us025 - Shields parameter for grain size diameter 0.25 mm
Us050 - Shields parameter for grain size diameter 0.50 mm
Us100 - Shields parameter for grain size diameter 1.00 mm
Us200 - Shields parameter for grain size diameter 2.00 mm

The Shields parameter used is presented in Eq 6 in Jönsson, A (2006) A model study of suspende

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Data format / data structure:

Numeric

Other

Published: 2019-03-19