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2 Zeszyty Naukowe / Akademia Morska w Szczecinie

2 2014

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Wind field numerical forecasts at high dynamic of pressure field changes

Winnicki I. A., Jasiński J. M., Kroszczyński K. A., Pietrek S. A.

Zeszyty Naukowe / Akademia Morska w Szczecinie

2014

nr 38 (110)

101--105

The paper presents an analysis of a rapid atmospheric process which in the beginning of December of 2013 moved over Europe from NNW in the form of a deep cyclone. The analysis aim is to verify the Weather Research & Forecasting Model results of daily numerical weather forecasts of extremely dynamic atmospheric processes. The applied spatial resolution of the computational grid of 36.3 km does not reveal the sub-grid processes. In case of the Xaver cyclone development and movement, the spatial step may be of significant importance. It is planned to analyze the case using data computed at better resolutions.

Analysis of a storm situation over the southern Baltic Sea using direct hydrometeorological and remote sensing measurements results

Pietrek S. A., Jasiński J. M., Winnicki I. A.

Zeszyty Naukowe / Akademia Morska w Szczecinie

2014

nr 38 (110)

81--88

The paper presents results of research concerning meteorological and hydrological conditions in the storm related with the Xaver cyclone moving fast over the Baltic Sea. The analyses were based on remote sensing data from radars in Świdwin and Gdańsk-Rębiechowo and hydrometeorological data from direct measurements conducted at the coastal stations of the Polish Navy, marine stations of the Institute of Meteorology and Water Management, hydrometeorological station on the “Baltic Beta” oil rig and the Coastal Research Station of the Institute of Hydroengineering of the Polish Academy of Sciences in Lubiatowo. The assessment of the synoptic situation was made using surface weather charts, satellite images of cloud cover and meteorological radars products. The measurement data were used to analyze the surface and upper air wind fields for assessment of the hydrological situation (water condition, height and direction of the significant and maximum waves) and evaluation of threats to sea navigation and coastal infrastructure.