Danube River Basin District Management Plan - Update 2015 (DRBM Plan)
The ICPDR has been developing the Danube River Basin District Management Plan - Update 2015 (DRBM Plan) according to the requirements of the EU Water Framework Directive. The plan will be finalised by end of 2015 and officially published after its endorsement by the ICPDR Ministerial Meeting in spring 2016.
The Management Plan sets priorities for transboundary river basin management in the Danube Basin for the period 2015-2021. Four significant water management issues have been identified (organic, nutrient and hazardous substances pollution and hydromorphological alterations), for each of these a thorough pressure assessment and a joint program of measures have been elaborated.
Nutrient pollution is assessed by a catchment scale, empirical, long-term average, lumped parameter water quality model called MONERIS. The model was developed by the IGB Berlin and it calculates the spatial patterns of nitrogen and phosphorus emissions entering the surface waters and the nutrient river loads at the catchment outlets. MONERIS is able to support decision making for regional nutrient management by identifying emission hot-shots, determining the relevant pathways and sources of emissions and assessing the impacts of various management scenarios on the emissions and loads.
The model has been used for the entire basin for the reference period of 2009-2012 to calculate current nutrient fluxes within the basin. The input data set compilation has been continuously liaised with the Danube countries whereas several national and international data sources have been exploited.
Model results have been evaluated for the reference status showing the current emissions patterns for the Danube Basin and assessing the contributions of the pathways and sources to the basin-wide emissions.
Based on the model set-up for current situation several management scenarios have been formulated for the most important source sectors (e.g. urban waste water, detergents and agriculture) and possible future emissions have been calculated and compared to the reference status.
To improve the model performance and to ensure better understanding on the basin-wide nutrient fluxes a model inter-comparison exercise has been undertaken in close cooperation with the IGB Berlin and JRC. Results of MONERIS and SWAT models (the latter has been applied by the JRC to calculate nutrient loads in the Danube Basin under the Danube Water Nexus project) have been compared and the similarities and differences have been evaluated.
An intensive data exchange between the ICPDR and JRC has been conducted to facilitate the modelling activities. The ICPDR provided with e.g. hydrologic and water quality data that have been collected through the ICPDR Transnational Monitoring Network. JRC ensured access to several datasets with future projections which have been used for scenario development, e.g. land use patterns, population distribution and gross nutrient balances of the CAPRI model.
The ICPDR is not just using the data from JRC, but it has also contributed as the source of information to the JRC enabled Danube Reference Data and Services Infrastructure (DRDSI).
In its work, ICPDR is collecting the data from the Danube Countries to facilitate the preparation of DRBM Plan - Update 2015, and the Danube Flood Risk Management Plan (DFRMP).
A great deal of work has been invested by the ICPDR contracting parties to provide the number of datasets to the DanubeGIS system which is lead and maintained by the ICPDR.
As there is a growing interest from research bodies, universities, NGOs, professional bodies and private companies to get information and access to ICPDR data, ICPDR has agreed with JRC to use the DRDSI platform to enable access to the metadata and facilitate the users needs.
Keeping in mind the access constraints, given by the Contracting Parties (i.e. Danube Basin countries), DanubeGIS data, as well as DRBMP and DFRMP report maps are gradually being made available by ICPDR as OGC compliant web services. Those services are being harvested by DRDSI platform - and consequentially being exposed for the use of the interested experts and general public.
In this way, through bi-directional data exchange, ICPDR and JRC have achieved synergy and have facilitated better data use in the Danube River Basin.