Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Brigham Young University

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 5731 - 5760 of 10986

Full-Text Articles in Entire DC Network

Facilitating Well-Informed Trade-Off Decision Making On Land Use Change: Integrating Rules And Indicators Of Ecosystem Service Provision Into Procedural 3d Visualization, Ulrike Wissen Hayek, Noemi Neuenschwander, Adrienne Grêt-Regamey Jul 2012

Facilitating Well-Informed Trade-Off Decision Making On Land Use Change: Integrating Rules And Indicators Of Ecosystem Service Provision Into Procedural 3d Visualization, Ulrike Wissen Hayek, Noemi Neuenschwander, Adrienne Grêt-Regamey

International Congress on Environmental Modelling and Software

Collaborative planning processes between science and a variety of publicand private stakeholders are seen as prerequisite for more sustainable landscapeand urban development. New planning tools are required enabling the stakeholdersto make collaborative decisions under uncertainties taking into account multipledimensions and values, alternative development possibilities and performanceindicators. We present a generic modelling and 3D visualization framework forcommunicating relationships between the natural and built environment combiningthe approaches of multi-criteria decision analysis and procedural 3D visualization.Focussing on urban pattern’s potential for ecosystem services provision on parcellevel, we demonstrate the approach of integrating rules and indicators into theprocedural urban model implementing ESRI’s CityEngine system. …

Go to article

Applying The Inverse Distance Weighting And Kriging Methods Of The Spatial Interpolation On The Mapping The Annual Precipitation In Bosnia And Herzegovina, Drešković Nusret, Samir Dug Jul 2012

Applying The Inverse Distance Weighting And Kriging Methods Of The Spatial Interpolation On The Mapping The Annual Precipitation In Bosnia And Herzegovina, Drešković Nusret, Samir Dug

International Congress on Environmental Modelling and Software

Two methods of the spatial interpolation [Inverse Distance Weighting(IDW) and the Kriging], often used in the Geographical Information System (GIS),have been applied on the mapping of the annual amount of precipitation in Bosniaand Herzegovina. For that purpose the monthly precipitation data obtained frommeteorological network in the period 1960-2011. The validation of the analyzeddata has been carried out by using 20-meter resolution Digital Elevation Model(DEM). The methods, which are suitable for the spatial interpolation for Bosnia andHerzegovina area, particularly for the orographic regions, were analyzed. First, theIDW linear interpolator was considered. However, in the mountain region, thismethod can give unrealistic results …

Go to article

Modelling Ecosystem Service Flows Under Uncertainty With Stochastic Span, Gary W. Johnson, Robert R. Snapp, Ferdinando Villa, Kenneth J. Bagstad Jul 2012

Modelling Ecosystem Service Flows Under Uncertainty With Stochastic Span, Gary W. Johnson, Robert R. Snapp, Ferdinando Villa, Kenneth J. Bagstad

International Congress on Environmental Modelling and Software

Ecosystem service models are increasingly in demand for decision making.However, the data required to run these models are often patchy, missing, outdated, oruntrustworthy. Further, communication of data and model uncertainty to decision makersis often either absent or unintuitive. In this work, we introduce a systematic approach toaddressing both the data gap and the difficulty in communicating uncertainty through astochastic adaptation of the Service Path Attribution Networks (SPAN) framework. TheSPAN formalism assesses ecosystem services through a set of up to 16 maps, whichcharacterize the services in a study area in terms of flow pathways between ecosystemsand human beneficiaries. Although the SPAN …

Go to article

Environmental Modelling Using Cloud Computing Tools: Case Studies And Examples, L. Matejicek Jul 2012

Environmental Modelling Using Cloud Computing Tools: Case Studies And Examples, L. Matejicek

International Congress on Environmental Modelling and Software

Cloud computing represents an emerging computing paradigm, which offers delivering a variety of computing services in a way that has not been experienced previously. In order to develop advanced simulations, environmental modelling must be adapted to this more powerful and efficient computing tool. Traditional model calculations are taken into the sphere of interconnected data and more accessible software tools, which rationalize the way they manage their resources. Moreover, information systems such as GIS, and case-oriented software tools for data pre-processing and visualization can be accessible for a wide range of users participating in research projects. In order to document distribution …

Go to article

Forest Vs. Fuel – How Could The Politically Fostered Demand For Energy Crops Influence The Effectiveness Of Redd+ Instruments?, Hanna Weise, Erik Gawel, Karin Frank Jul 2012

Forest Vs. Fuel – How Could The Politically Fostered Demand For Energy Crops Influence The Effectiveness Of Redd+ Instruments?, Hanna Weise, Erik Gawel, Karin Frank

International Congress on Environmental Modelling and Software

We present results from an agent based model that is designed to study the effects of different instruments for climate change mitigation. The policy instruments are a fostered demand for bioenergy and REDD+-like instruments that set incentives for land users to conserve carbon stock on their land. We test how the performance of these instruments is influenced by economic and ecological conditions of the region where they are applied. We find that for fostered demands for energy crops some designs of REDD+-like instruments are more effective than others. We also show that the effectiveness of the instruments depends on the …

Go to article

Core Network Compartments: Relative Importance Of Ecosystems Players In Moving Energy Through The System, Ursula M. Scharler, Brian D. Fath Jul 2012

Core Network Compartments: Relative Importance Of Ecosystems Players In Moving Energy Through The System, Ursula M. Scharler, Brian D. Fath

International Congress on Environmental Modelling and Software

Ecosystems that are depicted as nodes (species groups) and links (trophic transfers) encompass well defined roles in terms of their trophic structure. Some are primary producers and furnish the system with newly bound energy or nutrients, whereas others divide themselves over various trophic levels creating a hierarchy of energy use and reuse. All waste and mortality products of nodes comprise the non-living environment of ecosystems, often supporting a considerable part of the system as detritus. All food sources are in general used, but are so to variable extents. Some links are always among the major links, e.g. flows from detritus …

Go to article

Spatio-Temporal Characterisation Of Ecosystem Functions Based On Macro-Habitats, L. Poggio, Alessandro Gimona, Marie Castellazzi, I. Brown Jul 2012

Spatio-Temporal Characterisation Of Ecosystem Functions Based On Macro-Habitats, L. Poggio, Alessandro Gimona, Marie Castellazzi, I. Brown

International Congress on Environmental Modelling and Software

Analysis and forecast of the spatial distribution and dynamics of ecosystem services is an important element of sustainable land management. The aim of this paper is to analyse the spatial and temporal variability of various ecosystem functions using indices derived from remote sensing products. These are applied in macro habitat types in a test area in the River Dee catchment in the north-east of Scotland, with a wide range of morphological features, soils and habitats and providing multi-functional ecosystem services (ESs), such as water quality, soil health, and biodiversity. A set of indices, single and multi-date, were derived from remotely …

Go to article

Making Sense Of Sensor Data Using Ontology: A Discussion For Road Vehicle Classification, Markus Stocker, Mauno Rönkkö, Mikko Kolehmainen Jul 2012

Making Sense Of Sensor Data Using Ontology: A Discussion For Road Vehicle Classification, Markus Stocker, Mauno Rönkkö, Mikko Kolehmainen

International Congress on Environmental Modelling and Software

In environmental engineering, sensor measurement is a process undertaken with respect to an environmental domain, i.e. an area of interest, to measure a domain property. Knowledge of a domain, meaning its concepts and relations that hold among them, can be formally represented by means of ontology. Therefore, given an ontology for an environmental domain, it seems reasonable to suggest that sensor data acquisition can be translated into ontological knowledge acquisition. We demonstrate this translation for the domain of road vehicle classification by measurement of vibration. We show how supervised machine learning is applied to learn a function that maps sensor …

Go to article

Comparing Modelling Solutions At Submodel Level: A Case On Soil Temperature Simulation, S. Bregaglio, Marcello Donatelli, Roberto Confalonieri, Marco Acutis Jul 2012

Comparing Modelling Solutions At Submodel Level: A Case On Soil Temperature Simulation, S. Bregaglio, Marcello Donatelli, Roberto Confalonieri, Marco Acutis

International Congress on Environmental Modelling and Software

What is commonly referred as either crop or cropping system simulation model is a set of interlinked mathematical representations of approaches which are abstractions of a single biological or physical process. The methodology for their evaluation has evolved in time, but it has always targeted models as unique and immutable, except for versioning, discrete units. This paper has explored aspects both of model composition in the perspective of evaluating alternate modelling approaches, and of modelling solutions evaluation. Soil temperature was chosen as case study, evaluating nine modelling solutions against a multi-year, multi-location database of field recorded time series of data. …

Go to article

Steady-State Soil Organic Matter Approximation Model: Application To The Pasture Simulation Model, Romain Lardy, Anne-Isabelle Graux, Bruno Bachelet, David R. C. Hill, Gianni Bellocchi Jul 2012

Steady-State Soil Organic Matter Approximation Model: Application To The Pasture Simulation Model, Romain Lardy, Anne-Isabelle Graux, Bruno Bachelet, David R. C. Hill, Gianni Bellocchi

International Congress on Environmental Modelling and Software

Spin-up runs usually used to initialize mechanistic biogeochemical models highly increase the time required to make simulations. The aim of this paper is to evaluate the use of linear and quadratic regression models, as an alternative way to initialize such models. This option is illustrated with the grassland ecosystem Pasture Simulation model (PaSim) under a range of climate, soil and management conditions. Coupled to the CENTURY model for the soil processes, PaSim simulates fluxes of C, N, water and energy at the soil-plant-animalatmosphere interface for managed grasslands at the plot scale. This study demonstrates the feasibility of approximating steady state …

Go to article

Building An Integrated Model For Freshwater Allocation With Local Managers In A Coastal Area, Johanna Ballé-Béganton, Denis Bailly, M. Lample, Rémi Mongruel, Jean Prou, Harold Réthoret, Cédric Bacher, José A. Pérez Agùndez, Alice Vanhoutte-Brunier, Julien Neveu Jul 2012

Building An Integrated Model For Freshwater Allocation With Local Managers In A Coastal Area, Johanna Ballé-Béganton, Denis Bailly, M. Lample, Rémi Mongruel, Jean Prou, Harold Réthoret, Cédric Bacher, José A. Pérez Agùndez, Alice Vanhoutte-Brunier, Julien Neveu

International Congress on Environmental Modelling and Software

In the last forty years the Charente river catchment on the Atlantic coast of France has experienced recurrent low river flows in summer, attributed to the increase in irrigated areas. This situation is inconsistent with the regional plan goals of good ecological status of the watershed and conflicts with the need for freshwater input in downstream coastal waters for oyster farming in the Marennes-Oléron bay. In this application of the SPICOSA (Science and Policy Integration for Coastal System Assessment) experiment, a new participatory approach for integrated assessment with local managers is explored in order to improve the regulation of freshwater …

Go to article

Iedss As A Tool For The Integrated Assessment Of Conventional And Innovative Wastewater Treatment Technologies For Nutrient Removal, Rubén Reif, Manel Garrido-Baserba, Manel Poch Jul 2012

Iedss As A Tool For The Integrated Assessment Of Conventional And Innovative Wastewater Treatment Technologies For Nutrient Removal, Rubén Reif, Manel Garrido-Baserba, Manel Poch

International Congress on Environmental Modelling and Software

The Urban Wastewater Treatment Directive 91/271/EEC states that wastewaters from populations higher than 2,000 people equivalent must receive appropriate treatment with the aim of improving the ecological status of the receiving aquatic environment. In this context, ‘appropriate treatment’ is defined as one that fulfils the quality standards set for the receiving waters. This stricter regulation suggest new dimensions of analysis where the affected environments and socioeconomic criteria, together with the characteristics of the available wastewater treatment technologies are to be taken into account for the design of new facilities and the upgrade of existing ones. Thus, in order to deal …

Go to article

Land Use Modelling And The Role Of Stakeholders In Natural Protected Areas: The Case Of Donana, Spain, Richard Hewitt, Verónica Hernández-Jiménez, María A. Encinas Jul 2012

Land Use Modelling And The Role Of Stakeholders In Natural Protected Areas: The Case Of Donana, Spain, Richard Hewitt, Verónica Hernández-Jiménez, María A. Encinas

International Congress on Environmental Modelling and Software

Doñana, a National Park since 1969, a UNESCO site since 1994 amongother protected area designations of national and international character, is acoastal dune and marshland ecosystem of outstanding importance for biodiversityand conservation at the mouth of the Guadalaquivir River, Southwest Spain.However, the Doñana natural area is seriously threatened by global change factorssuch as humanly induced climate change, habitat loss, overexploitation ofecosystem services, and pollution. Not all stakeholders are convinced of thebenefits of the national park, and management of Doñana, its environs andwatershed are the subject of intense disagreement. This interplay between naturalcharacteristics of great value with intense human pressure makes …

Go to article

Sustainability Indicators For River Water Quality Management In Urban Areas, C. Gualtieri, P. Amparo López-Jiménez Jul 2012

Sustainability Indicators For River Water Quality Management In Urban Areas, C. Gualtieri, P. Amparo López-Jiménez

International Congress on Environmental Modelling and Software

In developed countries, the main problem of water management is the incompatibility between the average water quality, on the one hand, and the needs for ecosystem protection and the desirable water use or uses (i.e. recreation, water supply, agriculture, etc.), on the other. To achieve qualitative levels compatible with these two objectives, engineering controls are devised; such water quality criteria are often expressed by acceptable values of the parameters which represent health condition for the ecosystem. This is also taken into account in European and National legislations. These parameters could be easily linked to the concept of sustainability. Sustainable water …

Go to article

An Agent-Based Modelling Approach To Project Future Habitat Suitability For North-Ern Spotted Owl In Central Oregon, Jennifer Koch, James M. Sulzman, John P. Bolte, Robert J. Pabst, Thomas A. Spies, Tim Sheehan, Keith A. Olsen, Jeffrey D. Kline Jul 2012

An Agent-Based Modelling Approach To Project Future Habitat Suitability For North-Ern Spotted Owl In Central Oregon, Jennifer Koch, James M. Sulzman, John P. Bolte, Robert J. Pabst, Thomas A. Spies, Tim Sheehan, Keith A. Olsen, Jeffrey D. Kline

International Congress on Environmental Modelling and Software

Wildfires remain a major threat to Northern Spotted Owl habitat in Cen-tral Oregon, and there is an urgent need for tools to support the development of effective conservation planning strategies. We describe the managed forest eco-system in Central Oregon as a coupled human and natural system and apply the agent-based modelling framework ENVISION for quantifying the integrated effects of wildfires, vegetative succession, and human decisions regarding forest and fire management on the suitability of owl habitat. Our simulation results show that ENVISION is suitable for the simulation of complex system feedbacks and links over different spatial and temporal scale levels. …

Go to article

Modelling Multi-Pollutant Fate In A Large River: Role Of Hydro-Morphological And Physicochemical Parameters, Cyril Garneau, Sabine Sauvage, José-Miguel Sanchez-Perez, Yi Hong, Dominique Aubert, Anne Probst Jul 2012

Modelling Multi-Pollutant Fate In A Large River: Role Of Hydro-Morphological And Physicochemical Parameters, Cyril Garneau, Sabine Sauvage, José-Miguel Sanchez-Perez, Yi Hong, Dominique Aubert, Anne Probst

International Congress on Environmental Modelling and Software

European rivers are facing multiple sources of pollution, including metals, pesticides and nutrients. To understand the factors controlling their transport, modelling can be used to predict their fate. Usually, however, only one class of components is considered, often neglecting inner interactions. This paper proposes a methodological approach towards understanding the main processes describing the fate of trace pollutants interacting with hydrological processes and suspended solids. The model is evaluated in the middle course of the Garonne River in France and developed in three stages, each integrating a new type of process. The first describes the hydromorphology of the sector studied …

Go to article

Simulation Of Redd+ Options Using Iiasa Model Framework, Mykola Gusti, Hannes Böttcher, Georg Kindermann, Petr Havlik, Michael Obersteiner Jul 2012

Simulation Of Redd+ Options Using Iiasa Model Framework, Mykola Gusti, Hannes Böttcher, Georg Kindermann, Petr Havlik, Michael Obersteiner

International Congress on Environmental Modelling and Software

We present a modeling framework for simulating afforestation, deforestation and sustainable forest management that is composed of an interlinked economic model and a spatially explicit forestry model. The linkage of models allows addressing a number of important issues relevant to REDD+, in particular, estimation of cross-country comparable CO2 mitigation potential for individual countries and selected activities, “carbon-leakage” problem, estimation of marginal abatement cost curves for the mitigation activities etc. We demonstrate the application of the model framework for development of marginal abatement cost curves and discuss the results.

Go to article

Impacts Of Human Settlements On A Coastal Landscape: The Case Of Rio Verde Basin, Mexico, Cuitlahuac Hernandez-Santiago, Martin Volk, Joerg A. Priess Jul 2012

Impacts Of Human Settlements On A Coastal Landscape: The Case Of Rio Verde Basin, Mexico, Cuitlahuac Hernandez-Santiago, Martin Volk, Joerg A. Priess

International Congress on Environmental Modelling and Software

Human settlements require natural resources to cover their needs for shelter, food, water, etc., which creates environmental impacts. This is particularly true for new rural settlements which obtain these resources from their nearby surroundings. Current analysis of land-use change has taken inhabited settlements as subject of study where population dynamics or socio-economic changes can be assessed. In the present study we analyse extent and patterns of land-use change found around four different types of settlements (permanent, intermittent, new and abandoned) in a coastal river basin in Mexico. The methodological steps of our investigation include analyses of a) multi-temporal land-use change, …

Go to article

Participatory Analysis Of The Sustainability Of Livelihoods In The Agro-Ecosystem Of Abesard, Iran, Hadi Veisi, Sahar Bagheri Toulabi Jul 2012

Participatory Analysis Of The Sustainability Of Livelihoods In The Agro-Ecosystem Of Abesard, Iran, Hadi Veisi, Sahar Bagheri Toulabi

International Congress on Environmental Modelling and Software

This paper reports some of the results of a study to explore vulnerabilitycontexts i.e. trends, shocks and local cultural practices that affect livelihood assetsi.e. natural capital (land, water, biodiversity), physical capital (infrastructure,machinery), human capital (labour, skills), financial capital (savings, disposableassets), and social capital (rights, support systems) in Abesard, Iran. It alsodescribes structures, including organizations (government, private), and processes,including policies, laws and incentives, that determine the livelihood strategies ofhouseholds (agricultural intensification or expansion, livelihood diversification, andmigration) which, in turn, impact the assets. Participatory vulnerability analysis(PVA) was used within a sustainable rural livelihoods (SRL) framework to assessthe differences of the livelihoods of …

Go to article

Integrated Ecological Modelling For Decision Support In The Integrated Urban Water System Modelling Of The Drava River (Varazdin, Croatia), Javier E. Holguin, Gert Everaert, Lorenzo Benedetti, Youri Amerlinck, Peter L. M. Goethals Jul 2012

Integrated Ecological Modelling For Decision Support In The Integrated Urban Water System Modelling Of The Drava River (Varazdin, Croatia), Javier E. Holguin, Gert Everaert, Lorenzo Benedetti, Youri Amerlinck, Peter L. M. Goethals

International Congress on Environmental Modelling and Software

Legal physical-chemical emission limits are traditionally used forassessing the effectiveness of urban sanitation infrastructure. However, thereceiving water’s ecological aspects are disregarded with this conventionalapproach. European legislation (i.e. Water Framework Directive-WFD) now has anintegrated approach of river management, which considers the concept ofecological status. Furthermore, the WFD urges the adoption of a combined analysisof emission limits values and physical-chemical and ecological aspects of thereceiving waters and encourage the availability and use of decision support tools forwater management such as simulation models. Croatia has signed agreements tojoin the European Union (EU) and thus taken up the obligation to coordinate itslegislation with EU …

Go to article

A Eu27 Database Of Daily Weather Data Derived From Climate Change Scenarios For Use With Crop Simulation Models, Marcello Donatelli, Davide Fumagalli, A. Zucchini, G. Duveiller, R. L. Nelson, B. Baruth Jul 2012

A Eu27 Database Of Daily Weather Data Derived From Climate Change Scenarios For Use With Crop Simulation Models, Marcello Donatelli, Davide Fumagalli, A. Zucchini, G. Duveiller, R. L. Nelson, B. Baruth

International Congress on Environmental Modelling and Software

Global Circulation Models (GCM) estimate future climate under scenarios of greenhouse gases emissions. Such estimates include several meteorological parameters but the two direct outputs are air temperature at earth surface and precipitation. The estimates are spatially downscaled using different methodologies, but it is accepted that such data require further processing for use with simulation models. Daily values of solar radiation, wind, air humidity, and at times rainfall may have absolute values which are not realistic, and/or the daily record of data may prove not to be consistent across meteorological variables. The final problem is related to the fact that GCM …

Go to article

Communicating River Level Data And Information To Stakeholders With Different Interests: The Participative Development Of An Interactive Online Service, Kit (C. J. A) Macleod, Somayajulu G. Sripada, Antonio A. R. Ioris, Koen Arts, René Van Der Wal Jul 2012

Communicating River Level Data And Information To Stakeholders With Different Interests: The Participative Development Of An Interactive Online Service, Kit (C. J. A) Macleod, Somayajulu G. Sripada, Antonio A. R. Ioris, Koen Arts, René Van Der Wal

International Congress on Environmental Modelling and Software

Increasing the effectiveness of how river level data are communicated to a range of stakeholders (individuals, groups and communities) with an interest in river level information is likely to result in greater use of data collected by regulatory agencies. A range of interest groups, like those involved in recreational pursuits such as angling and canoeing, require certain but different information on changes in river levels state to allow effective scheduling of their activities. A range of options have been developed for communicating river level data to different audiences, but those fail to address group heterogeneity and information demands. To a …

Go to article

Adaptation To Climate Change By Agri- Environmental Policy In Finland, Katri Rankinen, Pirjo Peltonen-Sainio, Mikko Laapas, Kalle Sippel Jul 2012

Adaptation To Climate Change By Agri- Environmental Policy In Finland, Katri Rankinen, Pirjo Peltonen-Sainio, Mikko Laapas, Kalle Sippel

International Congress on Environmental Modelling and Software

An agri-environmental subsidy program that states water protection as one of its main objectives has been in place in Finland since 1995. The programme is the main tool within Water Framework Directive (WFD) to control nutrient load from agricultural areas in Finland. In this work we created story-lines for agricultural production influenced by climate change on a small agricultural catchment in southern Finland. We used dynamic, catchment scale model to simulate the influence of increased precipitation and temperature on runoff and nutrient leaching with and without different water protection methods, including the changes in production and field use. This study …

Go to article

An Essay About The Functional Time Of Environmental Interfaces Regarded As Complex Biophysical Systems, Dragutin T. Mihailović, Igor Balaž Jul 2012

An Essay About The Functional Time Of Environmental Interfaces Regarded As Complex Biophysical Systems, Dragutin T. Mihailović, Igor Balaž

International Congress on Environmental Modelling and Software

In the classical physics time is a continuous function eternally and evenly flowing as an absolute time dimension. However, the concept of “time‟s cycle” is commonly applied as a metaphor in the biological sciences. First, we shortly elaborated the issue of time in physics and biology and then we considered the term of the functional time that is formed only as a result of consistent change of qualitatively new states of concrete, final material objects and processes. Further, we described a model for signaling in the process of energy exchange between environmental interfaces (EIs), specifically using three EIs that send …

Go to article

Quantitative Assessment Of Natural And Anthropogenic Factors In Forest Carbon Sequestration, Peter A. Khaiter, Marina G. Erechtchoukova Jul 2012

Quantitative Assessment Of Natural And Anthropogenic Factors In Forest Carbon Sequestration, Peter A. Khaiter, Marina G. Erechtchoukova

International Congress on Environmental Modelling and Software

The ability of the ecosystems to generate services is vital for humanwell-being, economic development and even survival. The production ofecosystem services is influenced by a complex interplay of natural andanthropogenic factors. Quantitative assessment of the ecosystem services as wellas natural and anthropogenic factors affecting them is a crucial aspect ofsustainable environmental development and management. The paper discusses atheoretical framework for quantifying ecosystem services and their changes inresponse to natural and anthropogenic factors on the basis of a meta-modellingapproach. The effect of anthropogenic factors on the ecosystem components andservices is modelled using corresponding transformation functions. Forestecosystems and their services, with a …

Go to article

Integrated Assessment Of Mitigation Strategies Using An Agent-Based Model Of The Linked Energy, Economic, And Climate System, M. D. Gerst, P. Wang, A. Roventini, G. Dosi, R. B. Howarth, M. E. Borsuk Jul 2012

Integrated Assessment Of Mitigation Strategies Using An Agent-Based Model Of The Linked Energy, Economic, And Climate System, M. D. Gerst, P. Wang, A. Roventini, G. Dosi, R. B. Howarth, M. E. Borsuk

International Congress on Environmental Modelling and Software

An alternative to the typical application of rational choice models to climate policy is the coupling of agent-based modeling and exploratory approaches. Agent-based models (ABMs) represent the world as made up of heterogeneous, boundedly-rational agents who act in their own interests and yet engage in substantive communication. Rather than focusing on optimal outcomes, agent-based models are primarily concerned with the evolution of large-scale properties that ‘emerge’ from the lower-level behavior. Consequently, ABMs have the potential to address complex system properties and generate a wider array of plausible storylines than more traditional integrated assessment modeling methodologies. We provide an overview of …

Go to article

Potential Response Of Soil-Borne Fungal Pathogens Affecting Crops To A Scenario Of Climate Change In Europe, L. M. Manici, Marcello Donatelli, Davide Fumagalli, A. Lazzari, S. Bregaglio Jul 2012

Potential Response Of Soil-Borne Fungal Pathogens Affecting Crops To A Scenario Of Climate Change In Europe, L. M. Manici, Marcello Donatelli, Davide Fumagalli, A. Lazzari, S. Bregaglio

International Congress on Environmental Modelling and Software

A study was carried out on the potential response of soil-borne pathogens causing crop yield losses under a climate change scenario in Europe. A controlled chamber set of experiments was carried out to quantify pathogen response to temperature using pure colonies of three soil-borne fungi, representative of low (Fusarium nivale), medium-high (Athelia rolfsii) and high (Macrophomina phaseolina) temperature requirements. A generic model to simulate fungal growth response to temperature based on these experiments was developed and linked to a soil temperature model component, and to components to simulate soil water content accounting for crop water uptake of potential hosts. Pathogens …

Go to article

Modelling Sbr Cycle Management And Optimization Using Events And Workflows, D. Sottara, P. Mello, G. Morlini, F. Malaguti, L. Luccarini Jul 2012

Modelling Sbr Cycle Management And Optimization Using Events And Workflows, D. Sottara, P. Mello, G. Morlini, F. Malaguti, L. Luccarini

International Congress on Environmental Modelling and Software

Sequencing Batch Reactors (SBRs) provide several advantages in terms offlexibility and robustness to variations in the inflow concentrations and sludge alterations.Adjusting the duration of the load, reaction and discharge phases, it allows to optimizethe treatment, saving time and energy. Optimal policies can be defined by observingand analyzing some chemical and physical parameters such as pH, redox potential anddissolved oxygen concentration. Various Artificial Intelligence (AI) techniques have beenproposed and used to recognize the state of the biological processes inside the plant,using the signal trends and changes as indirect indicators. In particular, the terminationof a process (typically, denitrification in the anoxic phase …

Go to article

Interdependence Of Mitigation, Adaptation And Sustainable Development, D. E. Reusser, Tabea Lissner, Luis Costa, Flavio Augusto Pinto Siabatto, Anselmo Garcia Cantu Ros, Jürgen Kropp Jul 2012

Interdependence Of Mitigation, Adaptation And Sustainable Development, D. E. Reusser, Tabea Lissner, Luis Costa, Flavio Augusto Pinto Siabatto, Anselmo Garcia Cantu Ros, Jürgen Kropp

International Congress on Environmental Modelling and Software

Managing the interdependence of climate mitigation, adaptation and sustainable development requires a good understanding of the dominant sociotechnical and earth system processes that have determined the pathways in the past. Key variables include for example water and food availability which depend on climate and overall ecosystem services, as well as energy supply and social, political and economic conditions. Here we attempt an overview of existing model components and globally available data sources and look for gaps in existing approaches. This overview lies the foundation for building a model at the country level that integrates mitigation and adaptation with the ultimate …

Go to article

Dles Framework For Spatially-Explicit Simulation Modelling: General Description And Some Exemplary Applications, Maria Bezrukova, Vladimir Shanin, Yulia Khoraskina, Alexey Mikhailov Jul 2012

Dles Framework For Spatially-Explicit Simulation Modelling: General Description And Some Exemplary Applications, Maria Bezrukova, Vladimir Shanin, Yulia Khoraskina, Alexey Mikhailov

International Congress on Environmental Modelling and Software

DLES is a component-based framework integrating forest and soil simulation models with discrete spatial and temporal resolution. The task was to create the framework facilitating combination of stand-alone models of different spatial and temporal resolution with spatial interactions into the unified system, replacing models and comparing models against each other. Also, the feedbacks between these models can be implemented. The main features of the suggested approach are: 1) the system of models isn’t a ‘monolithic program’ (single executable file), but is a number of stand-alone modules that can be easily added to the system and removed from it; 2) modules …

Go to article

First Prev Next Last