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State Of The Art In Methods And Software For The Identification, Resolution And Apportionment Of Contamination Sources, Roma Tauler, Pentti Paatero, Cliff Spiegelman, Eun Sug Park, Richard L. Poirot, Philip Hopke, Ronald C. Henry
State Of The Art In Methods And Software For The Identification, Resolution And Apportionment Of Contamination Sources, Roma Tauler, Pentti Paatero, Cliff Spiegelman, Eun Sug Park, Richard L. Poirot, Philip Hopke, Ronald C. Henry
International Congress on Environmental Modelling and Software
Current approaches and recent developments and software related with multivariate factor analysis and related methods in the analysis of environmental data for the identification, resolution and apportionment of contamination sources are discussed and compared
An Efficient Algorithmic Framework For Environmental Modeling, U. Diwekar
An Efficient Algorithmic Framework For Environmental Modeling, U. Diwekar
International Congress on Environmental Modelling and Software
Environmental systems often involve nonlinear models, continuous as well discrete decisions, and multiple objectives. Uncertainties are inherent in these models increasing the complexity of decision making further. This paper presents an efficient algorithmic framework for environmental decision making for large scale systems involving multiple objectives in the face of uncertainties.
Impact Of Local And Non-Local Eddy-Diffusivity Schemes On Calculating The Concentration Of Pollutants In Environmental Models, Dragutin T. Mihailović
Impact Of Local And Non-Local Eddy-Diffusivity Schemes On Calculating The Concentration Of Pollutants In Environmental Models, Dragutin T. Mihailović
International Congress on Environmental Modelling and Software
In this paper, we studied a local and a non-local scheme for vertical diffusion in the atmospheric boundary layer and their impact on the concentration of pollutants calculated with an environmental model. In the local diffusion scheme, the eddy-diffusivity is determined independently at each point in the vertical based on local vertical gradients of wind and potential temperature. The non-local scheme determines an eddy-diffusivity profile based on a diagnosed boundary layer height and a turbulent vertical scale. To compare these two approaches, we used a local (O’Brien [1970]) and a modified non-local (Alapaty [2003]) diffusivity scheme. Compared to the original, …
Assessment Of Ecological State Of Surface Waters In Arrow Project: Robust Multivariate Predictive Models, J. Ráček, Jiri Jarkovsky, Danka Nemethova, P. Brabec
Assessment Of Ecological State Of Surface Waters In Arrow Project: Robust Multivariate Predictive Models, J. Ráček, Jiri Jarkovsky, Danka Nemethova, P. Brabec
International Congress on Environmental Modelling and Software
The ARROW (www.cba.muni.cz/arrow/eng - Assessment and Reference Reports of Water monitoring) project is the project of implementation of EU Water Framework Directive in the monitoring of surface waters of the Czech Republic and covers all aspects of this problem from data sampling to informatics solution (focusing on the ecostat). The project is based on long term development of this field in the Czech Republic and it is carried out under the supervision of the Ministry of the Environment of the CR. The important part of the ARROW project is the development and implementation of a Czech approach to the evaluation …
Experience With A System Dynamics Model In A Prospective Study On The Future Impact Of Ict On Environmental Sustainability, Patrick A. Wäger, Lorenz M. Hilty, Peter Arnfalk, Lorenz Erdmann, James Goodman
Experience With A System Dynamics Model In A Prospective Study On The Future Impact Of Ict On Environmental Sustainability, Patrick A. Wäger, Lorenz M. Hilty, Peter Arnfalk, Lorenz Erdmann, James Goodman
International Congress on Environmental Modelling and Software
To assess the potential impact of ICT on environmental sustainability in the European Union within a time horizon until 2020, we developed a System Dynamics model. In our contribution we make a critical, retrospective evaluation of the model with regard to the requirements and expectations of the project commissioners and of experts involved in the modeling and simulation process. The issues addressed are problem adequacy, validity, transparency, communicability and receptivity of the model. We conclude that modeling approaches that better support a modular model design than System Dynamics does would lead to better results regarding these requirements, and that a …
State Of The Art In Methods And Software For The Identification, Resolution And Apportionment Of Contamination Sources, Roma Tauler, Pentti Paatero, Cliff Spiegelman, Eun Sug Park, Richard L. Poirot, Philip Hopke, Ronald C. Henry
State Of The Art In Methods And Software For The Identification, Resolution And Apportionment Of Contamination Sources, Roma Tauler, Pentti Paatero, Cliff Spiegelman, Eun Sug Park, Richard L. Poirot, Philip Hopke, Ronald C. Henry
International Congress on Environmental Modelling and Software
Current approaches and recent developments and software related with multivariate factor analysis and related methods in the analysis of environmental data for the identification, resolution and apportionment of contamination sources are discussed and compared
An Efficient Algorithmic Framework For Environmental Modeling, U. Diwekar
An Efficient Algorithmic Framework For Environmental Modeling, U. Diwekar
International Congress on Environmental Modelling and Software
Environmental systems often involve nonlinear models, continuous as well discrete decisions, and multiple objectives. Uncertainties are inherent in these models increasing the complexity of decision making further. This paper presents an efficient algorithmic framework for environmental decision making for large scale systems involving multiple objectives in the face of uncertainties.
Impact Of Local And Non-Local Eddy-Diffusivity Schemes On Calculating The Concentration Of Pollutants In Environmental Models, Dragutin T. Mihailović
Impact Of Local And Non-Local Eddy-Diffusivity Schemes On Calculating The Concentration Of Pollutants In Environmental Models, Dragutin T. Mihailović
International Congress on Environmental Modelling and Software
In this paper, we studied a local and a non-local scheme for vertical diffusion in the atmospheric boundary layer and their impact on the concentration of pollutants calculated with an environmental model. In the local diffusion scheme, the eddy-diffusivity is determined independently at each point in the vertical based on local vertical gradients of wind and potential temperature. The non-local scheme determines an eddy-diffusivity profile based on a diagnosed boundary layer height and a turbulent vertical scale. To compare these two approaches, we used a local (O’Brien [1970]) and a modified non-local (Alapaty [2003]) diffusivity scheme. Compared to the original, …
Assessment Of Ecological State Of Surface Waters In Arrow Project: Robust Multivariate Predictive Models, J. Ráček, Jiri Jarkovsky, Danka Nemethova, P. Brabec
Assessment Of Ecological State Of Surface Waters In Arrow Project: Robust Multivariate Predictive Models, J. Ráček, Jiri Jarkovsky, Danka Nemethova, P. Brabec
International Congress on Environmental Modelling and Software
The ARROW (www.cba.muni.cz/arrow/eng - Assessment and Reference Reports of Water monitoring) project is the project of implementation of EU Water Framework Directive in the monitoring of surface waters of the Czech Republic and covers all aspects of this problem from data sampling to informatics solution (focusing on the ecostat). The project is based on long term development of this field in the Czech Republic and it is carried out under the supervision of the Ministry of the Environment of the CR. The important part of the ARROW project is the development and implementation of a Czech approach to the evaluation …
Experience With A System Dynamics Model In A Prospective Study On The Future Impact Of Ict On Environmental Sustainability, Patrick A. Wäger, Lorenz M. Hilty, Peter Arnfalk, Lorenz Erdmann, James Goodman
Experience With A System Dynamics Model In A Prospective Study On The Future Impact Of Ict On Environmental Sustainability, Patrick A. Wäger, Lorenz M. Hilty, Peter Arnfalk, Lorenz Erdmann, James Goodman
International Congress on Environmental Modelling and Software
To assess the potential impact of ICT on environmental sustainability in the European Union within a time horizon until 2020, we developed a System Dynamics model. In our contribution we make a critical, retrospective evaluation of the model with regard to the requirements and expectations of the project commissioners and of experts involved in the modeling and simulation process. The issues addressed are problem adequacy, validity, transparency, communicability and receptivity of the model. We conclude that modeling approaches that better support a modular model design than System Dynamics does would lead to better results regarding these requirements, and that a …