Computer Engineering Commons^™

Dynamic Modelling Of Dissolved Organic Carbon Concentrations In The Severn-Thames River Systems And Assessment Of The Impact Of A Water Transfer, Jaeyoung Lee, Gianbattista Bussi, Paul Whitehead, Martyn Futter, Jim Hall

International Congress on Environmental Modelling and Software

The aim of this modelling study has been to assess Dissolved Organic Carbon (DOC) in the River Thames and River Severn and the impacts of water transfers from in drought or low flow years. The transfer of water from the River Severn to the Thames is a water resource option under consideration by Thames Water as part of Water Resource Management Plan 2014. Rising trends of DOC in upland rivers in Wales have been observed over the past 15 years and with the proposed water transfer there is a chance that high DOC concentrations might be transferred across to the …

A Demonstration Of Many Objective Robust Decision Making Using Openmordm, David Hadka, Jonathan Herman, Patrick Reed, Klaus Keller

International Congress on Environmental Modelling and Software

This presentation demonstrates the application of a new open source software framework for many-objective robust decision making (MORDM), called OpenMORDM, on a challenging environmental management test case termed the "lake problem". The lake problem has been used extensively in the prior environmental decision science literature and, in this presentation, captures the challenges posed by conflicting economic and environmental objectives, a water quality "tipping point" beyond which the lake may become irreversibly polluted, and multiple deeply uncertain factors that may undermine the robustness of pollution management policies. OpenMORDM has a basis in the R programming language and represents a bridge to …

Design And Implementation Of A Rest Api For The Human Well Being Index (Hwbi), Amber R. Ignatius, Kurt Wolfe, Rajbir Parmar, Jonathan Flaishans, Linda Harwell, Susan Yee, Tom Purucker, Mike Galvin

International Congress on Environmental Modelling and Software

Interoperable software development uses principles of component reuse, systems integration, flexible data transfer, and standardized ontological documentation to promote access, reuse, and integration of code. While interoperability principles are increasingly considered technology standards in software engineering, adoption by the environmental modeling community has been slow. We created an Application Programming Interface (API) for the U.S. Environmental Protection Agency’s Human Well-being Index (HWBI) model based on interoperability principles. The HWBI characterizes economic, social, and environmental services during years 2000-2010. For each county in the U.S., specific metrics (e.g., life expectancy, housing affordability, voter turnout) are used to calculate scores for eight …

A Cascade Comprehensive Framework For Emergency Response To Water Pollution Incidents From Monitoring To Disposal Engineering: Water Security Protection On South-To-North Water Division Project, Jiping Jiang, Bin Shi, Zhaolin Du, Peng Wang

International Congress on Environmental Modelling and Software

Complex surrounding conditions along the water routes put threats on the water supply security of South-to-North Water Division Project (SNWDP), the biggest water transfer projects around the world. Comprehensive emergency management and decision support system (DSS) for chemical spill incidents prevention and control are of great necessary. However, many quantitative decision support models for guiding emergency response and disposal are not available nowadays. For example, how to quantitatively design emergency monitoring network? How to select emergency disposal technology and materials? Whether to start the disposal or not? How to analysis the risk of emergency disposal engineering? … After four years …

Using Machine Learning To Make The Most Out Of Free Data: A Deforestation Case Study, Helen Mayfield, Carl Smith, Marcus Gallagher, Lauren Coad, Marc Hockings

International Congress on Environmental Modelling and Software

Deforestation remains a major environmental issue and is studied for a range of reasons such as informing policy decisions, predicting at risk areas and evaluating interventions. Despite there being a range of machine learning (ML) techniques with a proven record in complicated, non-linear problems, many of these are rarely applied to deforestation analysis. We propose that this is partially due to uncertainty in the environmental services field regarding how these models perform compared to standard statistics. There is also a lack of guidance on which situations various models are suitable for. We compared the three ML techniques of artificial neural …

Decision Support Tools Of European Environment Agency, Jiří Hřebíček, Stefan Jensen, Chris Steenmans

International Congress on Environmental Modelling and Software

The European Environment Agency (EEA) is an agency of the European Union. Its task is to provide sound, independent information on the environment. EEA is a major information source for those involved in developing, adopting, implementing and evaluating environmental policy, and also the general public. Currently, the EEA has 33 member countries. The paper introduces updated decision support tools of the EEA which integrate information and communication technologies (ICT) and data management. There are discussed relevant Information and Communication Technologies (ICT), databases and sharing data with the European Copernicus programme, data centres of EEA, Eurostat and the Joint Research Centre …

Service-Based Processing Of Modis Global Terrestrial Evapotranspiration Data For Hydrological Modelling, C. Siegert, S. Kralisch, A. Künne, D. Nüst, B. Proß, C. Stasch

International Congress on Environmental Modelling and Software

Current challenges of understanding and assessing the impacts of climate and land use changes on ecosystems worldwide demand for an ever increasing integration of data and process knowledge in environmental simulation models. While the growing performance of multi-processor computer environments and the availability of well-tested data products with global coverage provide the basis to address this demand, the seamless and automated pre-processing of existing information and their integration into environmental models often remains a crucial point. Here, Web Processing Services (WPS) can be used for an easily usable, standardized geo-information processing that links data with models. This work presents a …

Cloud Services Integration Platform (Csip) Model And Data Services, Olaf David, W. Lloyd, J. Carlson, M. Arabi, T. Wible

International Congress on Environmental Modelling and Software

The Cloud Services Integration Platform (CSIP) is an open platform tailored to develop and deploy microservices for environmental models with data sources. Its emergence responded to needs within the modelling community for rapid and wide access to such modelling resources. CSIP was designed from the ground up (1) to account for modelling service elasticity and scalability, (2) to leverage contemporary computational approaches, (3) to address interoperability and traceability within operational settings, (4) to allow platform and language agnostic service access and cloud agnostic deployment while providing a simple, OMS3 based non-invasive approach to leverage legacy and new modelling solutions with …

The Delayed Oscillator Model For Climate Variability: A Review And An Application To The Atlantic Meridional Mode, F. Mesmin Awo, Gaël Alory, Ezinvi Baloïtcha

International Congress on Environmental Modelling and Software

Understanding climate variability in the tropical Pacific and Atlantic oceans is a considerable challenge for climate scientists. Interannual to decadal climate variability is dominated in these regions by the El Niño-Southern Oscillation (ENSO), the North Atlantic Oscillation, the tropical Atlantic zonal and meridional modes. These climatic modes are mainly driven by competing positive and negative feedback processes that involve ocean-atmosphere interactions. The delayed oscillator, a conceptual model that include these processes, has been developed to explain the cyclic nature of ENSO in the Pacific Ocean. We review its successful applications in the Atlantic Ocean and present our own application of …

Improving Component Interoperability And Reusability With The Java Connection Framework (Jcf): Overview And Application To The Ages-W Environmental Model, James C. Ascough Ii, Nathan P. Lighthart, Holm Kipka, Olaf David, Timothy R. Green, Gregory S. Mcmaster

International Congress on Environmental Modelling and Software

Environmental modeling framework (EMF) design goals are multi-dimensional and often include many aspects of general software framework development. Many functional capabilities offered by current EMFs are closely related to interoperability and reuse aspects. For example, an EMF needs to support development productivity and interoperability with other modeling tools, protocols, and programming languages, thereby minimizing overall integration effort. Facilitating data exchange between modules, classes, or components representing parts of a whole model is also an essential EMF feature. In general, EMFs should enable flexible model development rather than enforce complex and rigid development concepts. Additionally, full-featured EMFs should enable module connectivity …

Watermark: An Open-Source Platform For Federated Decision Support Systems And Applications To Integrated Environmental Problems, Rebecca Teasley, Nalbeat Kwon, John Gentle, Suzanne Pierce

International Congress on Environmental Modelling and Software

Federated data services and interactive workspaces for integrated modeling and advanced decision support will transform the practice of transdisciplinary research and improve science-based communication with decision makers and stakeholders. Integrated models are needed and they must be developed in a way that streamlines comparative analyses and makes them accessible to users. This research advances a framework of accessible computational tools for connecting data and models through reusable workflows and interactive decision support dashboards.

The prototype application, called Watermark, is used to analyze and apply integrated methods to an urban groundwater management problem. Watermark’s interactive mapping tools and touch-enabled interfaces for …

The Regard Project Brings 4 Platforms Together To Assess The State Of The Garonne River Catchment (France) - Integrating Remote Sensing Data With Hydrological And Human Activities Modeling, Sabine Sauvage, Eric Martin, Gregory Espitalier-Noël, Jordi Etchanchu, Youen Grusson, Romain Lardy, Pierre Le Cointe, François Moussu, Lucie Portier, Salwa Belaqziz, Camille Truche, Moussa Mballo, François Anctil, Mélanie Bardeau, Sylvain Biancamaria, Jacques Chorda, Simon Gascoin, Patrick Le Moigne, Ludovic Lhuissier, Clément Murgue, Sophie Ricci, Olivier Therond

International Congress on Environmental Modelling and Software

In many watersheds, water resource states depend on human activities and interactions between different hydrological compartments including rivers, aquifers, reservoirs, soil and snow. High human withdrawals may cause difficulties for the management of low water periods. The project REGARD aims at showing how remote sensing data and information on human activity, combined with hydrological modelling, can provide a high spatial (some kilometres) and temporal resolution (daily) view of the water resources dynamics. Formalism of environmental and human activities are implemented into four hydrological modelling platform dealing with different space and time scales in order to simulate interactions between all the …

Global Monitoring Plan Data Warehouse As A Tool For Worldwide Assessment Of Persistent Organic Pollution, Jiří Kalina, Jiří Hřebíček, Richard Hůlek, Jana Borůvková, Jana Klánová

International Congress on Environmental Modelling and Software

In 2004 the Stockholm Convention came into force, which eliminates a manufacture and use of persistent organic pollutants. Global Monitoring Plan is an important executive component of the convention, providing framework for an evaluation of its effectiveness. It ensures collection of comparable monitoring data on POPs from around the world in order to identify changes in POPs concentrations over time and their eventual transport. There are several programs focused on a monitoring of persistent organic pollutants in diverse environmental matrices over the globe, each working with a different methodology of sampling and analyses. Results of these programs are reported in …

Investigating The Street Canyon Vegetation Effects Using The Moment Method, Viktor Šíp, Luděk Beneš

International Congress on Environmental Modelling and Software

In this paper we investigate the effects of the vegetation inside a street canyon. Flow through and around the standalone street canyon is calculated using a CFD solver based on the Reynoldsaveraged Navier-Stokes equations. The dispersion of the pollutant is computed using the moment method that models the behaviour of the particle size distribution. Resulting pollutant concentrations for several wind conditions and for configurations without and with the trees are compared to the wind tunnel measurements. Using the deposition velocity model for the moment method, the effect of the dry deposition on the vegetation is then assessed. Three modes of …

Model Requirements For Decision Support Under Uncertainty In Data Scarce Dynamic Deltas, Marjolijn Haasnoot, Willem Van Deursen, Jan Kwakkel, Hans Middelkoop

International Congress on Environmental Modelling and Software

There is a long tradition of model-based decision support in water management. The consideration of deep uncertainty, however, changes the requirements imposed on models.. In the face of deep uncertainty, models are used to explore many uncertainties and the decision space across multiple outcomes of interest. This requires a model that runs fast, making it necessary to do concessions in the resolution including spatial, temporal and process information. For delta management under uncertainty, a model should capture all relevant changes, processes, actions, and feedbacks over time and produce relevant outcomes for stakeholders; thus it requires an integrated and dynamic model. …

Indexmed Projects: New Tools Using The Cigesmed Database On Coralligenous For Indexing, Visualizing And Data Mining Based On Graphs, Romain David, Jean-Pierre Féral, Anne-Sophie Archambeau, Nicolas Bailly, Cyrille Blanpain, Vincent Breton, Aurélien De Jode, Aurélie Delavaud, Alrick Dias, Sophie Gachet, Dorian Guillemain, Julien Lecubin, Geneviève Romier, Christian Surace, Laure Thierry De Ville D’Avray, Christos Arvanitidis, Anne Chenuil, Melih Ertan Ҫinar, Drosos Koutsoubas, Stéphane Sartoretto, Thierry Tatoni

International Congress on Environmental Modelling and Software

Data produced by the SeasEra CIGESMED project (Coralligenous based Indicators to evaluate and monitor the "Good Environmental Status" of the MEDiterranean coastal waters) have a high potential to be used by several stakeholders involved in environmental management. A new consortium called IndexMed whose task is to index Mediterranean biodiversity data, makes it possible to build graphs in order to analyse the CIGESMED data and develop new ways for data mining of coralligenous data. This paper presents the prototypes under development that test the ability of graphs dataBases and tools to connect biodiversity objects with non-centralized data. This project explores the …

Integrating Organizational Risk Analysis And Participatory Network Mapping For Flood Risk Management, R. Giordano, S. M. Hernandez Lopez, R. Olivo Del Amo, E. S. Lafuente, I. Pluchinotta, A. Pagano

International Congress on Environmental Modelling and Software

The complexity of the interaction network among the different actors involved in flood risk management makes it difficult for risk managers to fully understand the different interconnections among the key elements, i.e. actors, knowledge and tasks. Due to their limited understanding of the network, the risk managers fail to strengthen the social capital embedded in the network, reducing its role in supporting risk management. A method based on the integration between Organization Risk Analysis and Participatory Network Mapping is described in this work. The method aims at enhancing the risk managers’ understanding of the interaction network and, in doing so, …

Informing Adaptive Strategies For The Colorado Basin, David Groves, Robert Lempert, Jordan Fischbach, Evan Bloom

International Congress on Environmental Modelling and Software

The Colorado River is the single most important source of water in the southwestern United States, providing water and power for nearly 40 million people and water to irrigate more than five million acres of farmland across seven states and for 22 Native American tribes. A vast physical and institutional infrastructure exists to provide water, as well as hydropower, recreational opportunities, environmental services, and other benefits to all these users. However, increasing demand, a decade of drought, and expectations of a significantly changing future climate have put the system under significant and deeply uncertain stress. This paper employs and extends …

Hydra Platform: A Web-Based Data Management System To Facilitate Integration In Network Resource Modelling., Stephen Knox, Philipp Meier, Khaled Mohamed, Julien Harou, Brett Korteling, Josue Medellin-Azuara, David Rosenberg, Amaury Tilmant, Andy Chow, Tohid Efrani, Manuel Pulido-Velazquez

International Congress on Environmental Modelling and Software

The planning and management of engineered resource systems often involves applying multiple modelling approaches to the same system. These models can broaden the scope of decision making, giving owners/investors a better picture of the costs and effects of future assets or policy changes. Combining multiple different modelling paradigms is a challenge as many models operate on different time scales and have different input data requirements. One approach to combining models is to create a central data structure, to which each model connects via a specialised interface, transforming the centrally stored data into the appropriate input structure for the model and …

Combined Recursive Clustering And Partitioning To Define Optimal Dmas Of Water Distribution Networks, A. Di Nardo, M. Di Natale, S. Chianese, D. Musmarra, G. F. Santonastaso

International Congress on Environmental Modelling and Software

As known, the water network partitioning in district meter areas (DMAs) is one of the most effective way to improve water loss detection, pressure management and user protection from accidental and intentional contamination. Nevertheless, the definition of permanent DMAs is very complex because can drastically change the hydraulic performance of a network, since the insertion of gate valves in several pipes can reduce its energy and topological redundancy. In the last years, some optimization procedures, based on graph theory, network analysis and heuristic optimization methods, allowed to overcame the empirical approaches traditionally adopted to define the permanent district meter areas …