Operational system for diagnosis and forecast of hydrophysical characteristics of the Black Sea

Коротаев, Г. К.; Ratner, Yu. B.; Ivanchik, M. V.; Kholod, A. L.; Ivanchik, A. M.

doi:10.1134/s0001433816050078

Cited by 14 publications

(5 citation statements)

References 8 publications

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“…T a b l e 1 Wave characteristics were calculated using the SWAN model (version 41.20) using OpenMP technology for multi-core processors. The bottom relief for the Black Sea water area was set in the same way as in the Black Sea Marine Forecasting Center systems [11,12]. For the Sevastopol region, the bottom topography was prepared based on the use of database 1 with a spatial resolution of 30 s. An irregular grid with 31 nodes was used along the frequency coordinate varying in the range of 0.05-1.0 Hz.…”

Section: Modernization Of the Sea Wave Forecasting System Of The Black Sea Marinementioning

confidence: 99%

“…In rare cases, when these data were absent, as an additional source, a sample of forecast data from the PLAV 20 global model of the FSBI "Hydrometeorological Center of Russia" for the Black Sea at a standard height of 10 m with a time resolution of 3 hours and a spatial resolution of 22 km was used. This data obtaining via Internet was carried out daily in automatic mode by the Black Sea Marine Forecasting Center input system [12].…”

Section: Number Of Nodesmentioning

confidence: 99%

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Updated System for the Sea Wave Operational Forecast of the Black Sea Marine Forecasting Center

Ratner¹,

Fomin²,

Kholod³

et al. 2021

PhO

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Purpose. The work is aimed at updating the sea wave forecasting system developed in the Black Sea Marine Forecasting Center by including the block of wind wave forecast in the Sevastopol region and by improving the wave forecast accuracy using the proposed procedure for the SWAN model tuning. Methods and Results. In the updated forecasting system, the possibility of performing the joint operational sea wave forecasts for the Black Sea and the Sevastopol region (with the 5 and 1 km spatial resolutions, respectively) became possible due to the nested grid method applied. To improve accuracy of the wave forecasts, the procedure for the SWAN model tuning was proposed. It is based on changing the parameterization of the surface friction coefficient Cd(V), where V is the surface wind speed. This permits to reduce the deviations of the forecasted wave heights from those obtained from the satellite altimetry measurements. Efficiency of the proposed procedure was assessed through comparison of the forecasting results with the remote sensing data. It is shown that in the forecasts supplied with an optimal choice of functional dependence Cd(V), the scattering index between the forecasted and measured values can be reduced by 20 %. Conclusions. Represented is the updated system of the Black Sea Marine Forecasting Center intended for the joint operational sea wave forecasts in the Black Sea and in the Sevastopol region. The results of model validation have shown that the procedure proposed for tuning the SWAN model makes it possible to reduce the deviations of the forecasted wave heights from those measured by the sensors installed at the altimetry satellites.

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Section: Modernization Of the Sea Wave Forecasting System Of The Black Sea Marinementioning

confidence: 99%

Section: Number Of Nodesmentioning

confidence: 99%

Updated System for the Sea Wave Operational Forecast of the Black Sea Marine Forecasting Center

Ratner¹,

Fomin²,

Kholod³

et al. 2021

PhO

Self Cite

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“…Науково-технічною проблемою [2][3][4]10], на вирішення якої спрямовано наукові морські експедиційні дослідження та науково-технічні розробки Державної установи "Науковий гідрофізичний центр Національної академії наук України" (далі -Гідрофізичний центр), є надання користувачам оперативних океанографічних даних про стан морського середовища.…”

Section: щодо концепту створення гідрофізичного програмно-технологічн...unclassified

Неможливо Керувати Тим, Що Ще Не Виміряно

Shchyptsov¹,

Gordieiev²,

Stefanov³

et al. 2021

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У статті представлено концепт створення експериментального зразка гідрофізичного програмно-технологічного комплексу як складової майбутньої Системи оброблення та зберігання інформаційних ресурсів на базі суднового модульного комплексу технічних засобів збору та оброблення гідрофізичних параметрів морського середовища, розміщеного на борту науководослідницького судна "Гідробіолог" НАН України, а також берегового приймального центру інтелектуальної інформаційної системи висвітлення гідрографічної обстановки в Чорному морі Державної установи "Науковий гідрофізичний центр Національної академії наук України".

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“…Operation logs are available via the Internet. Access to data stored on THREDDS server is realized through the correspondding product lines [17,18]. A special NetcdfSubset interface is used to select and download data on the necessary parameters of the marine environment in an arbitrary part of the Black Sea water area [18].…”

Section: Bsmfc Wave Forecast Systemmentioning

confidence: 99%

“…Visualization of the wave forecast results is carried out via Godiva2 interactive interface -the standard component of THREDDS server [17]. It permits to obtain the value of the predicted parameter at any point in the water area, visualize horizontal and vertical sections, create animated images at specified time intervals and build time series at fixed points.…”

Section: Bsmfc Wave Forecast Systemmentioning

confidence: 99%

System of the Wind Wave Operational Forecast by the Black Sea Marine Forecast Center

Ratner¹,

Фомін²,

Ivanchik³

et al. 2017

PhO

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System of the wind wave operational forecast in the Black Sea based on the SWAN (Simulating Waves Nearshore) numerical spectral model is represented. In the course of the system development the SWAN model was adapted to take into account the features of its operation at the Black Sea Marine Forecast Center.The model input-output is agreed with the applied nomenclature and the data representation formats. The user interface for rapid access to simulation results was developed. The model adapted to wave forecast in the Black Sea in a quasi-operational mode, is validated for 2012-2015.Validation of the calculation results was carried out for all five forecasting terms based on the analysis of two-dimensional graphs of the wave height distribution derived from the data of prognostic calculations and remote measurements obtained with the altimeter installed on the Jason-2 satellite. Calculation of the statistical characteristics of the deviations between the wave height prognostic values and the data of their measurements from the Jason-2 satellite, as well as a regression analysis of the relationship between the forecasted and measured wave heights was additionally carried out.A The forecasts carried out by the authors for the Black Sea as well as those obtained for the other World Ocean regions show that the current level of numerical methods for sea wave forecasting is in full compliance with the requirements of specialists engaged in studying and modeling the state of the ocean and the atmosphere, as well as the experts using these results for solving applied problems.Keywords: the Black Sea, SWAN, automatic system, wave forecast, altimetry, satellite measurements, wave height, validation, visualization, server. Ocean. Currently, the center continues to operate autonomously. One of the tasks of further improvement of the Black Sea Marine Forecast Center (BSMFC) operational system is related to the creation of integrated marine forecast systems based on simultaneous joint work of various forecasting models, including those intended for joint forecasting of the Black Sea circulation and waves.Joint wave and circulation forecast will permit to increase the accuracy of calculations of sea current velocity, temperature and salinity in the upper sea layer and determine the sea wave characteristics. Improving the forecast quality is achieved due to a more correct consideration of the effects of the interaction of sea waves and currents using a complex prognostic model of these phenomena.

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Operational system for diagnosis and forecast of hydrophysical characteristics of the Black Sea

Cited by 14 publications

References 8 publications

Updated System for the Sea Wave Operational Forecast of the Black Sea Marine Forecasting Center

Updated System for the Sea Wave Operational Forecast of the Black Sea Marine Forecasting Center

Неможливо Керувати Тим, Що Ще Не Виміряно

System of the Wind Wave Operational Forecast by the Black Sea Marine Forecast Center

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