Abstract
Abstract. One of the parts of the Black Sea Nowcasting/Forecasting System is the regional forecasting system for the easternmost part of the Black Sea (including the Georgian water area), which has been developed within the context of the EU International projects ARENA and ECOOP. A core of the regional system is a high-resolution baroclinic regional model of the Black Sea dynamics developed at M. Nodia Institute of Geophysics (RM-IG). This model is nested in the basin-scale model of Marine Hydrophysical Institute (MHI, Sevastopol/Ukraine). The regional area is limited to the Caucasian and Turkish coastal lines and the western liquid boundary coinciding with the meridian 39.36° E. Since June 2010 we have regularly been computing 3 days' forecasts of current, temperature and salinity for the easternmost part of the Black Sea with 1 km spacing. In this study the results of two forecasts are presented. The first forecast corresponds to summer season and covers the prognostic interval from 00:00 h, 6 August to 00:00 h, 9 August 2010. The second one corresponds to autumn season and covers the prognostic interval from 00:00 h, 26 October to 00:00 h, 29 October 2010. Data needed for the forecasts – the initial and prognostic hydrophysical fields on the open boundary, also 2-D prognostic meteorological fields at the sea surface – wind stress, heat fluxes, evaporation and precipitation rates for our regional area are being placed on the MHI server every day and we are available to use these data operatively. Prognostic hydrophysical fields are results of forecast by the basin-scale model of MHI and 2-D meteorological boundary fields represent the results of forecast by regional atmospheric model ALADIN. All these fields are given on the grid of basin-scale model with 5 km spacing and with one-hour time step frequency for the integration period. The analysis of predicted fields shows that to use the model with high resolution is very important factor for identification of nearshore eddies of small sizes. It should be noted the very different character of regional circulation in summer and autumn seasons in the easternmost part of the Black Sea.
Highlights
Large scientific and technical achievement of the Black Sea operational oceanography for the last decade is the development of the Black Sea Nowcasting/Forecasting System which allows to carry out continuous control over a current state of the Black Sea and its change for some days forward (Besiktepe, 2003; Korotaev and Eremeev, 2006)
Nodia Institute of Geophysics by Kordzadze and Demetrashvili (2008, 2010). This model is nested in the basin-scale model (BSM) of the Black Sea dynamics of MHl (Demyshev and Korotaev, 1992)
It is necessary to note that in turn the BSM of Institute of Geophysics is an improved version of the prognostic model of the Black Sea dynamics (Kordzadze and Skiba, 1973; Marchuk et al, 1975, 1979; Marchuk and Kordzadze, 1986; Kordzadze, 1989) originally developed in the early 1970s at the Computing Center of Siberian Branch of the Academy of Sciences USSR (Novosibirsk, Akademgorodok)
Summary
Large scientific and technical achievement of the Black Sea operational oceanography for the last decade is the development of the Black Sea Nowcasting/Forecasting System which allows to carry out continuous control over a current state of the Black Sea and its change for some days forward (Besiktepe, 2003; Korotaev and Eremeev, 2006). I. Demetrashvili: Operational forecast of hydrophysical fields in the Georgian Black Sea the Black Sea Nowcasting/Forecasting System (including regional forecasting system for the Georgian water area) was successfully carried out for the first time in July 2005 during five days (Kubryakov et al, 2006; Kordzadze and Demetrashvili, 2008). Nodia Institute of Geophysics 3 days’ forecasts of 3-D fields of current, temperature and salinity with high resolution have been regularly carried out for the easternmost part of the Black Sea. All input data needed for initial and boundary conditions are available from the MHI server. To demonstrate the functioning of the system, two forecasts of hydrophysical fields for summer and autumn seasons are discussed
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
