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Wyświetlanie 1-7 z 7
Tytuł:
General information on the data, collected during the experiment POLRODEX 97
Autorzy:
Staśkiewicz, A.
Powiązania:
https://bibliotekanauki.pl/articles/1920504.pdf
Data publikacji:
1999
Wydawca:
Instytut Morski w Gdańsku
Tematy:
HIROMB model
POLRODEX
Opis:
The HIROMB model for the Baltic Sea hydrodynamic forecast, at present being run preoperationally in SMHI, covers completely the Polish exclusive economic zone of the sea. The measuring campaign POLRODEX '96 was organised and coordinated by the Maritime Institute especially for calibration and verification of numerical models in summer 1996 in the Gulf of Gdansk Five Polish and one Swedish institution were involved in the campaign. After the experiment, which resulted in many valuable materials, it was decided to continue such campaigns every year. In 1997, also in the Gulf of Gdansk, a new experiment POLRODEX '97 was organised, in which thirteen institutions from Poland, Russia and Sweden participated. A list of the data, collected during the POLRODEX '97, is provided.
Źródło:
Biuletyn Instytutu Morskiego w Gdańsku; 1999, 26, 1; 7-12
1230-7424
2450-5536
Pojawia się w:
Biuletyn Instytutu Morskiego w Gdańsku
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of the temporal variability of hydro-physical parameters in the HIROMB model
Autorzy:
Robakiewicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/1920489.pdf
Data publikacji:
1999
Wydawca:
Instytut Morski w Gdańsku
Tematy:
POLRODEX
HIROMB model
Opis:
Comparison between long-term measurements carried out during POLRODEX'97 experiment and results from HIROMB is presented. Analysis based on graphical presentation and statistical measure (reliability index) shows that model reproduces current direction fairly well, while current magnitude is underestimated. Time variability of salinity, temperature and water level variation reproduced by the model indicates discrepancies from observations.
Źródło:
Biuletyn Instytutu Morskiego w Gdańsku; 1999, 26, 1; 57-68
1230-7424
2450-5536
Pojawia się w:
Biuletyn Instytutu Morskiego w Gdańsku
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
HIROMB forecasts versus spatial measurements of the currents by means of rdi's BBADCP during the POLRODEX'97 experiment
Autorzy:
Krzymiński, W.
Powiązania:
https://bibliotekanauki.pl/articles/1920506.pdf
Data publikacji:
1999
Wydawca:
Instytut Morski w Gdańsku
Tematy:
HIROMB forecasts
measurements
POLRODEX'97 experiment
Opis:
The paper presents the observations of the flow field within central part of the Gulf of Gdansk, which have been carried out during POLRODEX'97 experiment in September 1997 by means of BBADCP (Broad Band Acoustic Doppler Current Profiler). In the paper some results of comparison between predicted values and measured are presented as well. The goal of the experiment it was to collect the data in order to verify numerical model calculations and to study the method of the flow field reconstruction. The cruise took place on the RV BALTICA, which carried a shipboard RDI' s BBADCP measuring device. The measurements were carried out along parallel transects with 30 s frequency of the collected averaged bins, while velocities of the current were computed relative to the bottom. The flow fields were examined at alti-meter layers from 8 meters depth down to the bottom layer on 22 -24 of September 1997. For the analysis, the data for one layer (mid value 12 m.) were selected and prepared for the comparison. On the basis of the results of the measurements, quasicsynoptic flow fields were reconstructed. It made possible to compare them with the results of the HIROMB forecasts. In pre-analysis phase the two forecasts, i.e.: 24 hours for 22nd and 6 hours for 23rd forecast were compared with the measurements. It showed us that the best result would be obtained for shortest time span between measurements and forecast. So, for further analysis the 6 hours forecast for 23rd was used. Then, the statistical analysis of differences was carried out. In order to find any regularity of the differences distribution it is discussed their spatial layout as well. In general, the most significant differences occurred in the northern part of the investigated area. Differences increased from the centre of the gulf toward east and north. It was clearly seen that model reproduce current velocities and directions well mainly along the Hel Peninsula and in central part of the Gulf In other areas, velocities of the predicted currents are of another order of magnitude than measured values. Despite the results of the comparison between measured and modelled values, the collected data showed well-expressed pattern of the flow in the gulf what could be studied further.
Źródło:
Biuletyn Instytutu Morskiego w Gdańsku; 1999, 26, 1; 77-86
1230-7424
2450-5536
Pojawia się w:
Biuletyn Instytutu Morskiego w Gdańsku
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Currents in the open Baltic Sea measured during POLRODEX 97 experiment preliminary interpretation
Autorzy:
Kaźmierski, J.
Powiązania:
https://bibliotekanauki.pl/articles/1920448.pdf
Data publikacji:
1999
Wydawca:
Instytut Morski w Gdańsku
Tematy:
POLRODEX
sea water
Opis:
The paper presents analysis of cun·ents and other physical parameters of sea water: salinity, temperature, and water level. The measurements were made in the north - western part of the Gdansk Bay during POLRODEX '97 experiment took place. Measured data are described, and their preliminary interpretation is given. Periodicity of currents and temperature oscillations is especially underlined.
Źródło:
Biuletyn Instytutu Morskiego w Gdańsku; 1999, 26, 1; 69-75
1230-7424
2450-5536
Pojawia się w:
Biuletyn Instytutu Morskiego w Gdańsku
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Measured and predicted values of water temperature and salinity with special focus on the surface layer
Autorzy:
Kamińska, M.
Powiązania:
https://bibliotekanauki.pl/articles/1920509.pdf
Data publikacji:
1999
Wydawca:
Instytut Morski w Gdańsku
Tematy:
salinity
POLRODEX
water temperature
Opis:
The Baltic is a stratified sea. The upper layer is under the influence of atmospheric and terrestial factors. The mechanisms of these external factors on the surficial and subsurface water layer are well recognised but the vertical exchange in the water body is still not sufficiently investigated. Field measurements at sea are time consuming and expensive. A model of the Baltic Sea distributed to and accessible by institutions investigating the Baltic Sea is advantageous because of easier exchange modelled data. The modelling, especially of the surface layer is important due to the fact that outside the coastal zone continuous measurements of physical parameters is difficult. The comparison between measured in situ and modelled data serves as a tool for the corrections to HIROMB resulting in better approximation of real phenomena occurring in the Baltic Sea. Temperature and salinity values obtained on board rlv Baltica during the POLRODEX'97 expetriment were compared with modelled values. The analysis showed significant differences between in situ measurements and obtained from the HIROMB model.
Źródło:
Biuletyn Instytutu Morskiego w Gdańsku; 1999, 26, 1; 97-111
1230-7424
2450-5536
Pojawia się w:
Biuletyn Instytutu Morskiego w Gdańsku
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of numerical wind forecasts for the Gdańsk bay area during the POLRODEX97 experiment
Autorzy:
Kałas, M.
Jakubiak, B.
Powiązania:
https://bibliotekanauki.pl/articles/1920491.pdf
Data publikacji:
1999
Wydawca:
Instytut Morski w Gdańsku
Tematy:
POLRODEX
wind field parameters
Baltic Sea
Opis:
The paper presents results of forecasts of wind field parameters over the Baltic Sea for the Gdańsk Bay area obtained using two atmosphere models: UMPL (ICM Warsaw University) and HIRLAM (SMHI Sweden). The obtained results are compared with field observations made on the open sea and at coastal stations during the POLRODEX'97 experiment. The agreement is quite good, although the influence of local weather conditions cannot be neglected.
Źródło:
Biuletyn Instytutu Morskiego w Gdańsku; 1999, 26, 1; 13-25
1230-7424
2450-5536
Pojawia się w:
Biuletyn Instytutu Morskiego w Gdańsku
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Verification of drift models of rhodamine spill, life-raft and dummy-man during experiment POLRODEX97
Autorzy:
Gajewski, J.
Gajewski, L.
Stachowiak, A.
Powiązania:
https://bibliotekanauki.pl/articles/1920508.pdf
Data publikacji:
1999
Wydawca:
Instytut Morski w Gdańsku
Tematy:
POLRODEX
HIROMB model
rhodamine spill
Opis:
The part of the experiment POLRODEX'97 was a set of drift experiments including the rhodamine spill, life raft and dummy-man drifting experiment. The experiments have been realised in order to both verify the hydrodynamic model results and increase the knowledge on drifting object behaviour including the possibilities to model the object drift using the operational results of HIROMB model. The results of the drifting experiments are shown. Some deficiencies in operational hydrodynamic and meteorological models are named.
Źródło:
Biuletyn Instytutu Morskiego w Gdańsku; 1999, 26, 1; 87-106
1230-7424
2450-5536
Pojawia się w:
Biuletyn Instytutu Morskiego w Gdańsku
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-7 z 7

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