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WATER COOPERATION, SUSTAINABILITY AND POVERTY ERADICATION84 per cent of the Morava basin, in terms of its area (26,580 km 2 ),and this is the seventh largest tributary to the Danube with anaverage discharge of 120 m 3 per second.In the aftermath of the disastrous 2002 and 2006 floods that also hitthe Thaya basin, the Lower Austria Government requested an extensionof the discharge forecasts, computed at CHMI’s Brno RegionalOffice and employing the HYDROG model. This was to include,The Morava-Dyje confluenceThe above detail shows: sub-basin borders (red lines); water gaugesoperated by CHMI (yellow), Povodí Moravy (orange), SHMI and Lower Austriahydrology department (red); and new monitoring sites operated by MoravaRiver Authority (purple)Source: CHMIinitially, the upper stretches of the Thaya basin and, after2006, the area of the Morava and Thaya confluence. In2007, a Memorandum of Understanding (MoU) wassigned with Lower Austria’s hydrology department. TheMoU contains approval of cooperation in the forecastingof discharges in the upper Thaya basin between CHMIand Lower Austria’s hydrology department. Every day,CHMI transmits discharge forecasts for two sites in theupper part of the Thaya basin, at Schwarzenau on theAustrian Thaya and at Raabs on the Thaya.Under ‘European Territorial Cooperation Austria-CzechRepublic 2007-2013’, the M00090 Morava-Thaya FloodForecasting System project was put in place. The projecthas resulted in an extension of the existing HYDROGforecasting system to include the Hohenau (Austria)/Moravský Svätý Ján (Slovak Republic) site on the Morava,downstream of the Morava-Thaya confluence.A study from 2007 2 contains a decision that thecurrent HYDROG forecasting model, 3 applied to theCzech part of the basins, would be expanded to coverthe Hohenau/Moravský Svätý Ján site on the Moravaand the current monitoring network would be extendedto include nine sites in the confluence area to monitorthe effect of polders and inundation. The model alsocovers a part of the Thaya basin in Austria and theMyjava basin in Slovakia, and considers handling operationson water reservoirs in the Thaya basin.The Slovak Hydrometeorological Institute (SHMI)has been using the HYDROG model to forecastdischarges in the Myjava basin since 2010, while forecastsfor the Hohenau/Moravský Svätý Ján site startedto be computed in February 2010. The managementof handling operations on polders and on diversionScheme of the consecutive calculation of flow predictions in the Morava River basinSource: CHMI[ 246 ]