Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 24 of 24
Full-Text Articles in Entire DC Network
Linking Data, Models And Tools: An Overview, H R A (Bert) Jagers
Linking Data, Models And Tools: An Overview, H R A (Bert) Jagers
International Congress on Environmental Modelling and Software
Complex questions trigger researchers around the world to link data, numerical models and tools of different origins together for integrated modeling of the environment and related socio-economic fields. Different researchers have, however, chosen different ways to link such resources. As a result a seemingly wide range of interfaces and frameworks have been defined: some have used low level interfaces others more abstract and object oriented ones; some systems may require little or no code changes whereas others promote to fundamental rewriting of your code. So, if we all try to link data, models and tools, why are we then using …
Impact Of Land-Use Changes On The Hydrological Processes In The Elbow River Watershed In Southern Alberta, G. N. Wijesekara, A. Gupta, C. Valeo, J. G. Hasbani, Danielle J. Marceau
Impact Of Land-Use Changes On The Hydrological Processes In The Elbow River Watershed In Southern Alberta, G. N. Wijesekara, A. Gupta, C. Valeo, J. G. Hasbani, Danielle J. Marceau
International Congress on Environmental Modelling and Software
Due to the rapid population growth and urbanization in the City of Calgary, the Elbow River watershed in southern Alberta covering 1238 km2 has been subjected to considerable land-use changes over the last decade. The objective of this study is to assess the impact of land-use intensification simulated with a cellular automata (CA) model on the hydrological processes of the watershed using MIKE-SHE, a physically-based and distributed hydrological model. MIKE-SHE was calibrated for the period 1985-1990 and validated for the period 2000-2005. The calibration was achieved by comparing observed and simulated flow data. The CA model was calibrated using four …
An Integrated, Multi-Modelling Approach For The Assessment Of Water Quality: Lessons From The Pinios River Case In Greece, Christos Makropoulos, E. Safiolea, Sotiria Baki, E. Douka, A. Stamou, Maria Mimikou
An Integrated, Multi-Modelling Approach For The Assessment Of Water Quality: Lessons From The Pinios River Case In Greece, Christos Makropoulos, E. Safiolea, Sotiria Baki, E. Douka, A. Stamou, Maria Mimikou
International Congress on Environmental Modelling and Software
Major factors influencing water quality along a river are land use practices, seasonal hydro-meteorological conditions, groundwater interactions and wastewater discharges. These complex water quantity and water quality aspects demand integrated solution approaches. The study links hydrologic, hydraulic and water quality models using the OpenMI standard to evaluate water quality in the Pinios River in Greece. OpenMI allows data to be exchanged at run time, between models from different providers, thus facilitating integrated modelling. The Pinios River was selected due to its high intensity of cultivation with water demanding crops. The objectives of the overall project, of which this study forms …
Integrated Modeling For Source Characterization Of Pathogenic Contamination In Watersheds, Michael E. Tryby, S. Thomas Purucker, Gene Whelan
Integrated Modeling For Source Characterization Of Pathogenic Contamination In Watersheds, Michael E. Tryby, S. Thomas Purucker, Gene Whelan
International Congress on Environmental Modelling and Software
The US EPA’s regulatory framework for recreational waters has protected public health for decades. Pathogenic contamination of these waters, however, remains a frequent cause of impairment. Integrated modeling is being leveraged to advance the agency’s understanding of pathogen fate and transport processes in watersheds and improve its ability to predict the consequences of exposure. This paper describes integrated modeling research focusing on source characterization techniques for pathogen transport scenarios in watersheds. Source characterization is a hidden requirement of Quantitative Microbial Risk Assessment, a method for estimating infection risks being evaluated across several programs within the EPA. A hybrid source characterization …
Development Of A Land-Use Component For An Integrated Model Of The German Biogas System, A. Schaldach, D. Lapola, U. Jessen, M. Thees, Ruediger Schaldach
Development Of A Land-Use Component For An Integrated Model Of The German Biogas System, A. Schaldach, D. Lapola, U. Jessen, M. Thees, Ruediger Schaldach
International Congress on Environmental Modelling and Software
Germany is one of the biggest producers of biogas in Europe. Biogas can either be combusted in highly efficient combined heat and power units to produce electricity and heat, or upgraded to biomethane for injection into the natural gas grid. As political conditions encourage the installation of new biogas plants, their number and capacity is expected to grow significantly in the next few years. In Germany, energy crops play an important role for biogas production. Due to their relatively low energy content transport distances from the field to the plants are a crucial issue for the efficiency of the biogas …
Development Of A Modular Environmental Decision Support System For The Integrated Management Of The Urban Wastewater Cycle At River Basin Scale, D. Murlà, A. Monistrol, Manel Poch, D. Sunyer
Development Of A Modular Environmental Decision Support System For The Integrated Management Of The Urban Wastewater Cycle At River Basin Scale, D. Murlà, A. Monistrol, Manel Poch, D. Sunyer
International Congress on Environmental Modelling and Software
Most of Urban Wastewater Systems (UWS) have been managed separately, without considering any interaction between sewer systems, Wastewater Treatment Plants (WWTPs) and the receiving waters. Nowadays, the conventional practice has changed, introducing the integrated management concept into the river basin scale. The goal of the project is to develop a modular Environmental Decision Support System (EDSS) to optimise the integrated management of the UWS based on a rule based system as the reasoning core and a Knowledge Base, easily represented by means of decision trees and fully opened. The EDSS, based upon expert knowledge and simulation results, will allow proposing …
From Openmi 1.4 To 2.0, Peter Gijsbers, Stef Hummel, Stanislav Vaneçek, Jesper Groos, Adrian Harper, Rob Knapen, Jan Gregersen, Peter Schade, Andrea Antonello, Gena Donchyts
From Openmi 1.4 To 2.0, Peter Gijsbers, Stef Hummel, Stanislav Vaneçek, Jesper Groos, Adrian Harper, Rob Knapen, Jan Gregersen, Peter Schade, Andrea Antonello, Gena Donchyts
International Congress on Environmental Modelling and Software
The Open Modelling Interface (OpenMI) was launched end of 2005 with the aim to become a global standard for linking models and tools in the environmental domain with focus on water. Over the past few years, the user and development community has grown substantially and various well known models have become compliant. Some of the uses did not adopt the OpenMI.Standard interfaces completely, but used a slight deviation to achieve their goal in a similar style. Improvements would be necessary to become a true global interface standard instead of a style for developing new model codes. Starting in 2007, a …
Integronsters' And The Special Role Of Data, Alexey Voinov
Integronsters' And The Special Role Of Data, Alexey Voinov
International Congress on Environmental Modelling and Software
In many cases model integration treats models as software components only, ignoring the fluid relationship between models and reality, the evolving nature of models and their constant modification and re-calibration. As a result, with integrated models we find increased complexity, where changes that used to impact only relatively contained models of subsystems, now propagate throughout the whole integrated system. This makes it harder to keep the overall complexity under control and, in a way, defeats the purpose of modularity, when efficiency is supposed to be gained from independent development of modules. Treating models only as software in solving the integration …
Deltashell - An Open Modelling Environment, Gennadii Donchyts, Bert Jagers
Deltashell - An Open Modelling Environment, Gennadii Donchyts, Bert Jagers
International Congress on Environmental Modelling and Software
Over the last two years an open modelling environment has been developed by the Dutch research institute Deltares. Main goal of the development was to create a solid software platform for running 1D, 2D and 3D environmental models. The system allows creating, storing and visualizing different types of environmental data, like time series, networks, GIS features, and other data types defined in the spatio-temporal domain. The architecture of the system, due to its modular and open design, can also support a wide range of other applications such as GIS data management, management and analysis of the hydrological data. The present …
Integrated Modelling For Health And Environmental Impact Assessment Of Air Pollution And Climate Change, Stefan Reis, T. Oxley, Ed Rowe
Integrated Modelling For Health And Environmental Impact Assessment Of Air Pollution And Climate Change, Stefan Reis, T. Oxley, Ed Rowe
International Congress on Environmental Modelling and Software
Modelling the impacts of air pollution and climate change on human health and ecosystems in integrated assessment models (IAMs) has emerged as a key tool to inform policy decision making, where simplistic solutions are unlikely to deliver efficient and sustainable pathways for future development. Model integration is facing a complex set of challenges in different dimensions, as integrated models have to be: - Spatially explicit and of sufficiently high spatial resolution for their respective domain, with nesting approaches providing the integration across different spatial scales. - Temporally dynamic to model system responses and recovery e.g. pollutant accumulation, time-lag (e.g. of …
Advances In Integrated Hydrological Modelling With The Liquid Framework, F. Branger, S. Debionne, P. Viallet, I. Braud, S. Jankowfsky, O. Vannier, F. Rodriguez, S. Anquetin
Advances In Integrated Hydrological Modelling With The Liquid Framework, F. Branger, S. Debionne, P. Viallet, I. Braud, S. Jankowfsky, O. Vannier, F. Rodriguez, S. Anquetin
International Congress on Environmental Modelling and Software
Environmental modelling frameworks are valuable and increasingly used tools for building customized models, in a context where the complexity of management issues and the availability of data require much flexibility. The LIQUID R framework has been developed since 2005. It is mostly dedicated to hydrological modelling. It aims at easily integrating hydrological processes while preserving their characteristic temporal and spatial scales. LIQUID R allows the user to build and run integrated models on the basis of reusable and exchangeable modules. It provides templates for easy development of new modules, connections to databases and GIS for data input and output, and …
Integrated Modeling For Source Characterization Of Pathogenic Contamination In Watersheds, Michael E. Tryby, S. Thomas Purucker, Gene Whelan
Integrated Modeling For Source Characterization Of Pathogenic Contamination In Watersheds, Michael E. Tryby, S. Thomas Purucker, Gene Whelan
International Congress on Environmental Modelling and Software
The US EPA’s regulatory framework for recreational waters has protected public health for decades. Pathogenic contamination of these waters, however, remains a frequent cause of impairment. Integrated modeling is being leveraged to advance the agency’s understanding of pathogen fate and transport processes in watersheds and improve its ability to predict the consequences of exposure. This paper describes integrated modeling research focusing on source characterization techniques for pathogen transport scenarios in watersheds. Source characterization is a hidden requirement of Quantitative Microbial Risk Assessment, a method for estimating infection risks being evaluated across several programs within the EPA. A hybrid source characterization …
Development Of A Land-Use Component For An Integrated Model Of The German Biogas System, A. Schaldach, D. Lapola, U. Jessen, M. Thees, Ruediger Schaldach
Development Of A Land-Use Component For An Integrated Model Of The German Biogas System, A. Schaldach, D. Lapola, U. Jessen, M. Thees, Ruediger Schaldach
International Congress on Environmental Modelling and Software
Germany is one of the biggest producers of biogas in Europe. Biogas can either be combusted in highly efficient combined heat and power units to produce electricity and heat, or upgraded to biomethane for injection into the natural gas grid. As political conditions encourage the installation of new biogas plants, their number and capacity is expected to grow significantly in the next few years. In Germany, energy crops play an important role for biogas production. Due to their relatively low energy content transport distances from the field to the plants are a crucial issue for the efficiency of the biogas …
Development Of A Modular Environmental Decision Support System For The Integrated Management Of The Urban Wastewater Cycle At River Basin Scale, D. Murlà, A. Monistrol, Manel Poch, D. Sunyer
Development Of A Modular Environmental Decision Support System For The Integrated Management Of The Urban Wastewater Cycle At River Basin Scale, D. Murlà, A. Monistrol, Manel Poch, D. Sunyer
International Congress on Environmental Modelling and Software
Most of Urban Wastewater Systems (UWS) have been managed separately, without considering any interaction between sewer systems, Wastewater Treatment Plants (WWTPs) and the receiving waters. Nowadays, the conventional practice has changed, introducing the integrated management concept into the river basin scale. The goal of the project is to develop a modular Environmental Decision Support System (EDSS) to optimise the integrated management of the UWS based on a rule based system as the reasoning core and a Knowledge Base, easily represented by means of decision trees and fully opened. The EDSS, based upon expert knowledge and simulation results, will allow proposing …
Linking Data, Models And Tools: An Overview, H R A (Bert) Jagers
Linking Data, Models And Tools: An Overview, H R A (Bert) Jagers
International Congress on Environmental Modelling and Software
Complex questions trigger researchers around the world to link data, numerical models and tools of different origins together for integrated modeling of the environment and related socio-economic fields. Different researchers have, however, chosen different ways to link such resources. As a result a seemingly wide range of interfaces and frameworks have been defined: some have used low level interfaces others more abstract and object oriented ones; some systems may require little or no code changes whereas others promote to fundamental rewriting of your code. So, if we all try to link data, models and tools, why are we then using …
Integronsters' And The Special Role Of Data, Alexey Voinov
Integronsters' And The Special Role Of Data, Alexey Voinov
International Congress on Environmental Modelling and Software
In many cases model integration treats models as software components only, ignoring the fluid relationship between models and reality, the evolving nature of models and their constant modification and re-calibration. As a result, with integrated models we find increased complexity, where changes that used to impact only relatively contained models of subsystems, now propagate throughout the whole integrated system. This makes it harder to keep the overall complexity under control and, in a way, defeats the purpose of modularity, when efficiency is supposed to be gained from independent development of modules. Treating models only as software in solving the integration …
Deltashell - An Open Modelling Environment, Gennadii Donchyts, Bert Jagers
Deltashell - An Open Modelling Environment, Gennadii Donchyts, Bert Jagers
International Congress on Environmental Modelling and Software
Over the last two years an open modelling environment has been developed by the Dutch research institute Deltares. Main goal of the development was to create a solid software platform for running 1D, 2D and 3D environmental models. The system allows creating, storing and visualizing different types of environmental data, like time series, networks, GIS features, and other data types defined in the spatio-temporal domain. The architecture of the system, due to its modular and open design, can also support a wide range of other applications such as GIS data management, management and analysis of the hydrological data. The present …
Integrated Modelling For Health And Environmental Impact Assessment Of Air Pollution And Climate Change, Stefan Reis, T. Oxley, Ed Rowe
Integrated Modelling For Health And Environmental Impact Assessment Of Air Pollution And Climate Change, Stefan Reis, T. Oxley, Ed Rowe
International Congress on Environmental Modelling and Software
Modelling the impacts of air pollution and climate change on human health and ecosystems in integrated assessment models (IAMs) has emerged as a key tool to inform policy decision making, where simplistic solutions are unlikely to deliver efficient and sustainable pathways for future development. Model integration is facing a complex set of challenges in different dimensions, as integrated models have to be: - Spatially explicit and of sufficiently high spatial resolution for their respective domain, with nesting approaches providing the integration across different spatial scales. - Temporally dynamic to model system responses and recovery e.g. pollutant accumulation, time-lag (e.g. of …
Impact Of Land-Use Changes On The Hydrological Processes In The Elbow River Watershed In Southern Alberta, G. N. Wijesekara, A. Gupta, C. Valeo, J. G. Hasbani, Danielle J. Marceau
Impact Of Land-Use Changes On The Hydrological Processes In The Elbow River Watershed In Southern Alberta, G. N. Wijesekara, A. Gupta, C. Valeo, J. G. Hasbani, Danielle J. Marceau
International Congress on Environmental Modelling and Software
Due to the rapid population growth and urbanization in the City of Calgary, the Elbow River watershed in southern Alberta covering 1238 km2 has been subjected to considerable land-use changes over the last decade. The objective of this study is to assess the impact of land-use intensification simulated with a cellular automata (CA) model on the hydrological processes of the watershed using MIKE-SHE, a physically-based and distributed hydrological model. MIKE-SHE was calibrated for the period 1985-1990 and validated for the period 2000-2005. The calibration was achieved by comparing observed and simulated flow data. The CA model was calibrated using four …
Using An Integrated, Multi-Disciplinary Framework To Support Quantitative Microbial Risk Assessments, Gene Whelan, Michael E. Tryby, Mitchell A. Pelton, Jeffery A. Soller, Karl J. Castleton
Using An Integrated, Multi-Disciplinary Framework To Support Quantitative Microbial Risk Assessments, Gene Whelan, Michael E. Tryby, Mitchell A. Pelton, Jeffery A. Soller, Karl J. Castleton
International Congress on Environmental Modelling and Software
The Framework for Risk Analysis in Multimedia Environmental Systems (FRAMES) provides the infrastructure to link disparate models and databases seamlessly, giving an assessor the ability to construct an appropriate conceptual site model from a host of modeling choices, so a number of modeling analyses can be supported and reproduced. FRAMES is a Windows-based system that can incorporate and communicate with a array of software models and databases and that is uniquely designed to allow users, by themselves, to visualize the problem and add and link disparate models – even older legacy models – and databases to the system. Quantitative Microbial …
From Openmi 1.4 To 2.0, Peter Gijsbers, Stef Hummel, Stanislav Vaneçek, Jesper Groos, Adrian Harper, Rob Knapen, Jan Gregersen, Peter Schade, Andrea Antonello, Gena Donchyts
From Openmi 1.4 To 2.0, Peter Gijsbers, Stef Hummel, Stanislav Vaneçek, Jesper Groos, Adrian Harper, Rob Knapen, Jan Gregersen, Peter Schade, Andrea Antonello, Gena Donchyts
International Congress on Environmental Modelling and Software
The Open Modelling Interface (OpenMI) was launched end of 2005 with the aim to become a global standard for linking models and tools in the environmental domain with focus on water. Over the past few years, the user and development community has grown substantially and various well known models have become compliant. Some of the uses did not adopt the OpenMI.Standard interfaces completely, but used a slight deviation to achieve their goal in a similar style. Improvements would be necessary to become a true global interface standard instead of a style for developing new model codes. Starting in 2007, a …
Advances In Integrated Hydrological Modelling With The Liquid Framework, F. Branger, S. Debionne, P. Viallet, I. Braud, S. Jankowfsky, O. Vannier, F. Rodriguez, S. Anquetin
Advances In Integrated Hydrological Modelling With The Liquid Framework, F. Branger, S. Debionne, P. Viallet, I. Braud, S. Jankowfsky, O. Vannier, F. Rodriguez, S. Anquetin
International Congress on Environmental Modelling and Software
Environmental modelling frameworks are valuable and increasingly used tools for building customized models, in a context where the complexity of management issues and the availability of data require much flexibility. The LIQUID R framework has been developed since 2005. It is mostly dedicated to hydrological modelling. It aims at easily integrating hydrological processes while preserving their characteristic temporal and spatial scales. LIQUID R allows the user to build and run integrated models on the basis of reusable and exchangeable modules. It provides templates for easy development of new modules, connections to databases and GIS for data input and output, and …
Using An Integrated, Multi-Disciplinary Framework To Support Quantitative Microbial Risk Assessments, Gene Whelan, Michael E. Tryby, Mitchell A. Pelton, Jeffery A. Soller, Karl J. Castleton
Using An Integrated, Multi-Disciplinary Framework To Support Quantitative Microbial Risk Assessments, Gene Whelan, Michael E. Tryby, Mitchell A. Pelton, Jeffery A. Soller, Karl J. Castleton
International Congress on Environmental Modelling and Software
The Framework for Risk Analysis in Multimedia Environmental Systems (FRAMES) provides the infrastructure to link disparate models and databases seamlessly, giving an assessor the ability to construct an appropriate conceptual site model from a host of modeling choices, so a number of modeling analyses can be supported and reproduced. FRAMES is a Windows-based system that can incorporate and communicate with a array of software models and databases and that is uniquely designed to allow users, by themselves, to visualize the problem and add and link disparate models – even older legacy models – and databases to the system. Quantitative Microbial …
An Integrated, Multi-Modelling Approach For The Assessment Of Water Quality: Lessons From The Pinios River Case In Greece, Christos Makropoulos, E. Safiolea, Sotiria Baki, E. Douka, A. Stamou, Maria Mimikou
An Integrated, Multi-Modelling Approach For The Assessment Of Water Quality: Lessons From The Pinios River Case In Greece, Christos Makropoulos, E. Safiolea, Sotiria Baki, E. Douka, A. Stamou, Maria Mimikou
International Congress on Environmental Modelling and Software
Major factors influencing water quality along a river are land use practices, seasonal hydro-meteorological conditions, groundwater interactions and wastewater discharges. These complex water quantity and water quality aspects demand integrated solution approaches. The study links hydrologic, hydraulic and water quality models using the OpenMI standard to evaluate water quality in the Pinios River in Greece. OpenMI allows data to be exchanged at run time, between models from different providers, thus facilitating integrated modelling. The Pinios River was selected due to its high intensity of cultivation with water demanding crops. The objectives of the overall project, of which this study forms …