- KonferenzbeitragSmart Grid Integration of an Existing Office Building: Modelling and Simulation of Adaptation Strategies(Proceedings of the 27th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2013) Hilty, Lorenz M.; Bornhöft, Nikolaus A.; Page, Bernd; Fleischer, Andreas G.; Göbel, Johannes; Wohlgemuth, VolkerThe development of smart grids makes possible the introduction of dynamic electricity rates, with prices changing each hour. Dynamic rates can reflect the temporal dependency of supply and demand for electrical power and network capacity, thus avoiding load peaks and promoting the use of fluctuating renewable energy sources. We present a simulation model that studies the electricity demand for heating and cooling modern office buildings in the context of dynamic electricity prices. The model permits the simulation of scenarios in which existing thermal energy reservoirs (warm and cold water tanks) are used for the smart grid integration by means of adapted control strategies. The adaptation to dynamic electricity rates and thus indirectly to the fluctuating supply of wind and solar power is achieved solely by changing the control of the existing infrastructure without changing the infrastructure itself.
- KonferenzbeitragRisk assessment methods of water supply system in terms of reliability and operation cost(Proceedings of the 27th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2013) Bartoszczuk, Pawel; Szymik-Gralewska, Jolanta; Zimoch, Izabela; Page, Bernd; Fleischer, Andreas G.; Göbel, Johannes; Wohlgemuth, VolkerFollowing the end of the Second World War, domestic consumers in the countries of Central and Eastern Europe region, including Poland, normally paid a small percentage of the cost of drinking water while the rest was paid by the state in the form of subsidies. After 1990 water charges suddenly increased and reached a significant proportion of the household s average income. This led to a considerable decrease of water consumption and not fully utilised capacity of existing plants. One of the decisive factors of the decrease of water consumption was installation of meters. Whether the observed falling trend of water consumption can be stopped and when it might happen has been unknown until now. In fact, knowledge on the impact of price changes on water demand is insufficient. Moreover, there is no satisfactory model to explain the existing phenomenon. After joining European Union significant outlays on water supply systems were taken to improve water quality. European Water Framework Directive claims that Member States shall take account of the principle of recovery of the costs of water services, including environmental and resource costs, having regard to the economic analysis ( ) and in accordance in particular with the polluter pays principle (Water Framework Directive, European Union).
- KonferenzbeitragPotential and Problems of the Cellular System Approach for Environmental Modeling and Simulation(Proceedings of the 27th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2013) Wittmann, Jochen; Page, Bernd; Fleischer, Andreas G.; Göbel, Johannes; Wohlgemuth, VolkerBy the growing use of geographic information systems (GIS) the use of cellular approaches for modelling and simulation spatial and especially geographical processes and systems gains more and more importance. This paper gives an overview over the basic definitions and emphasizes a proper differentiation between the very tight definition of real cellular automata and the very universal one for cellular systems. On the base of these definitions typical problems are discussed, which raise for modelling spatial objects given by raster or vector data and by representing spatial relationships between these objects. Furthermore the difference in semantics between neighbourhood relation in GIS and neighbourhood relations needed for modelling purposes are elaborated.
- KonferenzbeitragInvestigation of Land Cover Change and Land Surface Temperature for the Megacity Ho Chi Minh City using Landsat Imagery(Proceedings of the 27th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2013) Thinh, Nguyen Xuan; Kopec, Jakob; Page, Bernd; Fleischer, Andreas G.; Göbel, Johannes; Wohlgemuth, VolkerRapid uncontrolled urban growth over last twenty years creates significant pressures for the environment and many challenges for urban planning in Ho Chi Minh City (HCMC). One of the big challenges is land management. The application of remote sensing can provide reliable and current geodata bases for land management and land use monitoring in HCMC. In this study we used Landsat Imagery to detect and analyse the land cover change HCMC for the periods 1989 2000, 2000 2002 and 2002 2005 in order to find out the extent of the urban growth in HCMC in these time periods. The next important task is to evaluate the urban growth regarding well known urban planning principles like the compact city or the city of short distances . This will be done by mean of urban density gradient , the jaggedness degree and the centre oriented entropy developed by Thinh (2004). Our results show the dimension of urban expansion in HCMC and the potential of the linkage between remote sensing techniques and urban form metrics as a powerful and useful tool for modern land use change monitoring. They are very useful for the investigation of growth patterns and land use planning in HCMC.
- KonferenzbeitragDevelopment of mathematical models for forecasting hydraulic loads of water and wastewater networks(Proceedings of the 27th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2013) Haase, Martina; Page, Bernd; Fleischer, Andreas G.; Göbel, Johannes; Wohlgemuth, VolkerIn municipal waterworks the operation of water and wastewater networks decides about the functioning of the sewage treatment plant that is the last element of the whole water and sewage system. The both networks are connected each other and the work of the water net affects the operation of the wastewater one. The parameters which are important for right leading of all waterworks objects are their hydraulic loads that have to be not exceeded. Too large loads can cause accidents in the wastewater net or the tratment plant and an early knowledge of them is of importance for undertaking some counteractions. In the paper different algorithms to model hydraulic loads of municipal water and wastewater nets are described and compared regarding their computation velocity and accuracy. Some exemplary computations have been done with some real data received from a Polish water company.
- KonferenzbeitragUsing Mike 21 ST model to assess the sand mining project in Lo river(Proceedings of the 27th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2013) Linh, Doan Tuan; Long, Trinh Hoang; Van, Pham Thanh; Manh, Vu Van; Page, Bernd; Fleischer, Andreas G.; Göbel, Johannes; Wohlgemuth, VolkerWith the aim of assessing the impact of sand mining project environmental Lo River, subjects used the method of sediment transport modeling in rivers, using Sand Transport module in the hydrodynamic model Mike 21 for a particular project. The result was to determine the feasibility of a sand mining project on the Lo river. The subject has shown that the effects of sand mining project on the flow rate and changes in river bed surface and it is negligible. The method can be applied in order to calculate in other mining projects.
- KonferenzbeitragUnderstanding Urban Structures – An Approach for Assessing Climate Risk in Emerging Megacities(Proceedings of the 27th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2013) Downes, Nigel Keith; Storch, Harry; Page, Bernd; Fleischer, Andreas G.; Göbel, Johannes; Wohlgemuth, VolkerThe emerging megacity of Ho Chi Minh City has developed at breakneck pace. The city has become Vietnam s economic powerhouse and an important hotspot for direct foreign investment in Southeast Asia in a mere few decades. Recently the need to adapt to the multiple stressors of rapid urbanisation and climate change has also become increasingly evident. The city is seen to be particular susceptible to both current and future impacts of climatic change, due to its specific geographic setting, its current development challenges, and its underlying rate of urbanisation. Worryingly, these climate change impacts, if unaddressed, pose significant consequences and present further challenges that will infringe upon the overall urban functioning and liveability of the city as a whole. This contribution will outline an urban structure type approach used to portray, classify and understand settlement patterns and the urban structures of the current and emerging landscapes of Ho Chi Minh City. An important prerequisite for establishing much needed efficient and proactive, as well as rapid, adaptation planning strategies is the spatial and rational characterisation of the current urban fabric according to vulnerability relevant features. Further, an understanding of urban settlement patterns and urban structures allows for the capturing of the highly dynamic spatiotemporal social and structural changes associated with rapid urbanisation processes. The ultimate aim is an integrated assessment of the underlying urban risk divide and the inherent urban resilience based on coherent and credible indicator sets. The approach provides a common spatial framework at the resolution of the urban block for data integration and for the compilation of existing vulnerability concepts from various thematic and scientific disciplines at the same spatial scale. The scale provides a clear instrument to generate portfolios of block-specific core indicators, move across scales, run scenarios and aggregate to larger planning horizons, ultimately useful to determine hotspots for administrative interventions and to assist prioritising in spatial planning decision-making.
- KonferenzbeitrageENVplus: a framework to support eEnvironmental services and applications(Proceedings of the 27th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2013) Attardo, Carmelo; Saio, Giorgio; Page, Bernd; Fleischer, Andreas G.; Göbel, Johannes; Wohlgemuth, VolkereENVplus (www.eenvplus.eu) is a ICT-PSP -Pilot A project, started on January 2013. The eENVplus key objective leads to support the implementation of INSPIRE and SEIS, engaging environmental data (many INSPIRE Annex I-II-III Data Themes) managed by the involved national/regional environment agencies and other public and private environmental stakeholders through the integration and harmonisation of existing services. Starting from the results of previous European experiences (funded projects, best practices, EU/national/local experiences) eENVplus integrates existing infrastructures into an operational framework able to overcome cross-border and languages barriers. eENVplus provides not only the ICT infrastructure but also the description and the support how to make this infrastructure operational and profitable through the provision of an organisational model and a tutored training framework. eENVplus interoperable infrastructure provides Members State and Geographic Information Communities with: 1. A comprehensive, open and scalable infrastructure able to integrate existing infrastructures according to the INSPIRE requirements, open standards and interoperable innovative services; 2. A set of innovative added value interoperable web services aiming to facilitate the development of innovative environmental applications; 3. A common Environment Thesaurus Framework, supporting the integration of existing thesauri relevant to the environment via Linked Data and providing added-value services for its integration and exploitation in pilot applications 4. A comprehensive tool-kit for data harmonisation and validation supporting Members States during INSPIRE implementation; 5. A Training Framework to support, with eLearning tools, the development of the necessary capacities and knowledge to keep operational the eENVplus infrastructure. It is intended to implement 9 environmental scenarios in 10 pilots (BE, CZ, EL, FR, HU, IS, IT, PT, SI, SK), in order to offer the actual eENVplus outcomes implementation in a variety of different situations and user needs. The pilots with their scenarios will allow to better streamline the tools available to the project into the main flow of INSPIRE compliance, with evident implications on interoperability among applications, existing or planned.
- KonferenzbeitragDevelopment of a GIS-based spatial model for the estimation of sustainable biomass potentials in different regions of North West Europe(Proceedings of the 27th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2013) Menard, Lionel; Wald, Lucien; Blanc, Philippe; Gschwind, Benoît; Page, Bernd; Fleischer, Andreas G.; Göbel, Johannes; Wohlgemuth, VolkerWithin the EU-project BioenNW a GIS-based spatial model for the estimation of the amount and the spatial distribution of different biomass residues, originating e.g. from agriculture, forestry and municipal waste, is being developed using the integrated development environment Eclipse together with the programming language Python and the software ArcGIS. This study presents the model structure and exemplary results for the estimation of residue potentials from cereals and root crops cultivation on arable land in the district Dueren (Germany). Besides to theoretical potentials, so called sustainable potentials are estimated assuming different types of ecological and techno-economic restrictions. The sustainable residue potentials are estimated for the EEA reference grid (1 km) including maps data on land cover, protected areas, soil erodibility and soil organic carbon content together with statistical data on land use and crop yields for the year 2010.
- KonferenzbeitragAnalysis of GIS data to investigate natural resource impacts of high-voltage overhead lines in the examples in Lower Saxony and North Rhine-Westphalia(Proceedings of the 27th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2013) Thinh, Nguyen Xuan; Sander, Leon; Kopec, Jakob; Mühlnickel, Kai; Page, Bernd; Fleischer, Andreas G.; Göbel, Johannes; Wohlgemuth, VolkerIn this paper we describe shortly Lower Saxony and North Rhine-Westphalia as study areas and the legal framework, both in the context of natural resource impacts of high-voltage overhead lines. We then conduct the buffer analysis of a GIS dataset in order to investigate natural resource impacts of existing high-voltage overhead lines in the two mentioned study areas. The paper is based upon the first results of the interdisciplinary research and development project "Power Network Planning" funded as part of the 6th Energy research program "Research for an environmentally friendly, reliable and affordable energy supply" by the German Federal Ministry of Economics and Technology (BMWi).