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Hydrodynamic reanalysis of currents in the Baltic Sea using the PM3D model

Description

The dataset contains the results of numerical modeling of currents in the Baltic Sea since 1998. A long-term reanalysis was performed using a three-dimensional hydrodynamic model PM3D (Kowalewski and Kowalewska-Kalkowska, 2017), a new version of the M3D model (Kowalewski, 1997).

The model is based on the Princeton Ocean Model (POM) developed at Princeton University (Blumberg and Mellor, 1987). Like POM, the M3D/PM3D model uses the Mellor-Yamada turbulence scheme and sigma vertical coordinates. The simulation was carried out in a rectangular grid of 3' (latitude) and 6' (longitude) resolution. The spatial resolution was 3 nautical miles, i.e. about 5.5 km. An open boundary was located between the Skagerrak and the Kattegat along the parallel connecting Skagen and Göteborg, where the water exchange with the North Sea takes place. A radiation condition based on Somerfield’s concept for velocities  vertically averaged and normal to the boarder  plane was applied. Weather forcing since 1998 was carried out using the results of operational numerical forecasts conducted by ICM University of Warsaw using the Unified Model (UM) developed by Met Office. The PM3D model uses the assimilation of sea surface temperature from the satellite (SST) and measurements of salinity and water temperature from ships at standard depths as part of ICES monitoring.

The eastward and northward components of surface currents and at a depth of 5 m, 10 m, 15 m, 20 m, 30 m,  40 m, 50 m and 60 m were recorded every three hours in the computational grid of the model in unproiected form: LatLong, WGS 84 (EPSG: 4326).

Illustration of the publication
Illustration of the publication

Surface and 20 m deep currents in the Baltic Sea on the first day of reanalysis

Dataset file

Baltic_currents_1998-2020.zip
40.7 GB, S3 ETag b98c81a5e9f9721e955c0eb0dcf6d235-82, downloads: 40
The file hash is calculated from the formula
hexmd5(md5(part1)+md5(part2)+...)-{parts_count} where a single part of the file is 512 MB in size.

Example script for calculation:
https://github.com/antespi/s3md5
download file Baltic_currents_1998-2020.zip

File details

License:
Creative Commons: by-nc-sa 4.0 open in new tab
CC BY-NC-SA
Non-commercial - Share-alike
Software:
Software for Manipulating or Displaying NetCDF Data

Details

Year of publication:
2021
Verification date:
2021-08-31
Creation date:
2021
Dataset language:
English
Fields of science:
  • Earth and related environmental sciences (Natural sciences)
DOI:
DOI ID 10.34808/1hq4-df69 open in new tab
Series:
Verified by:
Gdańsk University of Technology

Keywords

References

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