Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 27 of 27
Full-Text Articles in Entire DC Network
Hydrologic Data Discovery, Download, Visualization, And Analysis: A Brief Introduction To Hydrodesktop, Daniel P. Ames, Jeffery S. Horsburgh, Yang Cao, Jiří Kadlec, Timothy Whiteaker, David Valentine
Hydrologic Data Discovery, Download, Visualization, And Analysis: A Brief Introduction To Hydrodesktop, Daniel P. Ames, Jeffery S. Horsburgh, Yang Cao, Jiří Kadlec, Timothy Whiteaker, David Valentine
International Congress on Environmental Modelling and Software
Discovering and accessing hydrologic and climate data for use in research or water management can be a difficult task that consumes valuable time and personnel resources. New advances in cyberinfrastructure and in semantic mediation technologies have provided the means for creating better tools supporting data discovery and access. In this paper we describe a freely available and open source software tool, called HydroDesktop that can be used for discovering, downloading, managing, visualizing, and analyzing hydrologic data. HydroDesktop was created to discover data published using the Consortium of Universities for the Advancement of Hydrologic Science, Inc. (CUAHSI) Hydrologic Information System (HIS).
Development Of A Guideline For Regional And Local Authorities To Adapt To Climate Change - Results Of The Project “Klimpass”, Hardy Pundt, Andrea Heilmann, Enrico Kerwel
Development Of A Guideline For Regional And Local Authorities To Adapt To Climate Change - Results Of The Project “Klimpass”, Hardy Pundt, Andrea Heilmann, Enrico Kerwel
International Congress on Environmental Modelling and Software
The project KLIMPASS was aimed at the development of an adaptation strategy to climate change based on a regional, and local level. The basis of such a strategy is formed by the existing climate change scenarios. The overall goal is to move from a high level of abstraction to context specific conditions, involving local stakeholders and concrete actors. GIS technology was used to process vulnerability maps that support decision-making processes about measures to be implemented envisaging potential climatic threats. This paper describes the overall methodology applied, and focuses later on the GIS-based vulnerability maps.
Evaluating The Impact Of Climate Change On Global Hpai H5n1 Outbreaks, Zhijie Zhang, Dongmei Chen, Wenbao Liu, Lei Wang
Evaluating The Impact Of Climate Change On Global Hpai H5n1 Outbreaks, Zhijie Zhang, Dongmei Chen, Wenbao Liu, Lei Wang
International Congress on Environmental Modelling and Software
Highly pathogenic avian influenza viruses H5N1 have spread throughout Asia, Europe, and Africa in the past decade, raising serious worldwide concerns about a potential new pandemic. Many studies have investigated the spread of the HPAI H5N1 virus and discussed its possible risk factors. However, the climate factor, which can affect the whole process of H5N1 outbreaks, has been greatly ignored. The objective of this preliminary study is to use a GIS-based approach to explore the potential impacts of temperature change on H5N1 outbreaks. We have divided the outbreaks into five epidemic waves. Although the temperature ranges of different epidemic waves …
Validation And Sensitivity Analysis Of Catchment Runoff And Erosion Simulation Technology (Crest): A Gis-Assisted Soil Erosion Model At Watershed Level, Reynaldo L. Lanuza, Eduardo P. Paningbatan Jr
Validation And Sensitivity Analysis Of Catchment Runoff And Erosion Simulation Technology (Crest): A Gis-Assisted Soil Erosion Model At Watershed Level, Reynaldo L. Lanuza, Eduardo P. Paningbatan Jr
International Congress on Environmental Modelling and Software
Most erosion models have been developed based on a plot scale and have limited application to a watershed due to the differences in scale. In order to address this limitation, a GIS-assisted methodology for modeling soil erosion was developed using PCRaster to predict the rate of soil erosion at watershed level and identify the location of erosion prone areas. The GIS-assisted hydrology and erosion models were validated at Tanghaga Watershed using the observed values from previous experiment. The predicted peak rates, Qp, showed a highly significant relationship with the observed Qp, with an r2 value of 0.75. For soil loss …
Evaluating The Impact Of Climate Change On Global Hpai H5n1 Outbreaks, Zhijie Zhang, Dongmei Chen, Wenbao Liu, Lei Wang
Evaluating The Impact Of Climate Change On Global Hpai H5n1 Outbreaks, Zhijie Zhang, Dongmei Chen, Wenbao Liu, Lei Wang
International Congress on Environmental Modelling and Software
Highly pathogenic avian influenza viruses H5N1 have spread throughout Asia, Europe, and Africa in the past decade, raising serious worldwide concerns about a potential new pandemic. Many studies have investigated the spread of the HPAI H5N1 virus and discussed its possible risk factors. However, the climate factor, which can affect the whole process of H5N1 outbreaks, has been greatly ignored. The objective of this preliminary study is to use a GIS-based approach to explore the potential impacts of temperature change on H5N1 outbreaks. We have divided the outbreaks into five epidemic waves. Although the temperature ranges of different epidemic waves …
Validation And Sensitivity Analysis Of Catchment Runoff And Erosion Simulation Technology (Crest): A Gis-Assisted Soil Erosion Model At Watershed Level, Reynaldo L. Lanuza, Eduardo P. Paningbatan Jr
Validation And Sensitivity Analysis Of Catchment Runoff And Erosion Simulation Technology (Crest): A Gis-Assisted Soil Erosion Model At Watershed Level, Reynaldo L. Lanuza, Eduardo P. Paningbatan Jr
International Congress on Environmental Modelling and Software
Most erosion models have been developed based on a plot scale and have limited application to a watershed due to the differences in scale. In order to address this limitation, a GIS-assisted methodology for modeling soil erosion was developed using PCRaster to predict the rate of soil erosion at watershed level and identify the location of erosion prone areas. The GIS-assisted hydrology and erosion models were validated at Tanghaga Watershed using the observed values from previous experiment. The predicted peak rates, Qp, showed a highly significant relationship with the observed Qp, with an r2 value of 0.75. For soil loss …
Spatially Distributed Identification Of Debris Flow Source Areas By Credal Networks, A. Salvetti, A. Antonucci, M. Zaffalon
Spatially Distributed Identification Of Debris Flow Source Areas By Credal Networks, A. Salvetti, A. Antonucci, M. Zaffalon
International Congress on Environmental Modelling and Software
Debris flows represent a very destructive natural hazard, affecting buildings, transport infrastructures, and, very often, causing human losses in mountain regions. That makes the identification of potential source areas of debris flows inside a watershed particularly important. In this paper we present a general identification procedure based on the credal network (that is an imprecise probabilistic graphical model generalizing Bayesian networks) originally introduced by Antonucci et al. [2004]. That model is significantly improved by a more refined description of the meteorological and hydrological processes contributing to the debris flow initiation. As a counterpart of such improvement, the model pays a …
Bridging The Gap Between Geohydrologic Data And Distributed Hydrologic Modeling, G. Bhatt, M. Kumar, C. J. Duffy
Bridging The Gap Between Geohydrologic Data And Distributed Hydrologic Modeling, G. Bhatt, M. Kumar, C. J. Duffy
International Congress on Environmental Modelling and Software
This paper outlines and demonstrates a strategy for coupling of integrated hydrologic model and Geographic Information System (GIS) to meet pre/post processing of data and visualization. Physically based fully distributed integrated hydrologic models seek to simulate hydrologic state variables and their interactions in space and time. The process requires interaction with a range of heterogeneous data layers such as topography, soils, hydrogeology, climate, and land use. Clearly, this requires a strategy for defining topology definitions, data gathering and development. Traditionally GIS has been used for data management, analysis and visualization. Integrated use and streamlineed development of sophisticated numerical models and …
Integrated Model Platform For Sustainable Energy Planning. Colombian Case., R. Quijano, J. Domínguez
Integrated Model Platform For Sustainable Energy Planning. Colombian Case., R. Quijano, J. Domínguez
International Congress on Environmental Modelling and Software
Colombia has relied for long on a generous endowment of fossil fuels (oil, coal and gas) and hydropower to meet domestic energy needs and also to contribute substantially to the balance of trade in international markets. But this situation is about to change due to the announced loss of self-sufficiency in oil (forecasted by 2010-2011) unless a dramatic last minute change in proven reserves occurs. Likewise, Colombia’s hydro potential (the largest energy source for power generation in the country) is facing difficulties to add further representation within the generation mix. These difficulties include increasing environmental and social costs associated with …
Bottom-Up Methodologies For The Modeling And Upscaling Of Farm Nitrogen Losses In European Landscapes, Tommy Dalgaard, C. Kjeldsen
Bottom-Up Methodologies For The Modeling And Upscaling Of Farm Nitrogen Losses In European Landscapes, Tommy Dalgaard, C. Kjeldsen
International Congress on Environmental Modelling and Software
This paper presents bottom-up scaling methodologies, implemented in the MEA-Scope strategic research project, and in the NitroEurope landscape level component. Both projects are based on a bottom-up approach, where farm information are collected for landscapes in Germany, Slovakia, Poland, France, Hungary, Italy, Scotland, The Netherlands and Denmark; and landscape level impacts of the Model for European Agriculture (MEA) are assessed. This paper is about the upscaling from farm to landscape level, and focuses on the modelling of Nitrogen surplus from agriculture as an indicator for water pollution. It is demonstrated in detail how farm information from the Danish landscape is …
An Environmental Decision Support System For An Efficient Monitoring And Planning Of Woody Biomass For Energy Production, With Remote Sensing Aid, F. Frombo, M. De Martino, R. Minciardi, M. Robba, S. B. Serpico
An Environmental Decision Support System For An Efficient Monitoring And Planning Of Woody Biomass For Energy Production, With Remote Sensing Aid, F. Frombo, M. De Martino, R. Minciardi, M. Robba, S. B. Serpico
International Congress on Environmental Modelling and Software
The proposed paper describes the architecture of a GIS-based Environmental Decision Support System (EDSS) that integrates software tools and sensors, such as: remote sensing for environmental monitoring and support to mathematical models, optimization models (for planning plant size, kind, and biomass harvesting), dynamic forest growth models, and models for carbon dioxide balance calculation. The proposed EDSS is innovative as regards the current literature because it will be a tool for operational monitoring, cost minimization and efficient planning intervention, in accordance with natural and anthropogenic events that occur on the sites. The features of the EDSS and of the user-friendly interface …
Modsim: Decision Support System For Integrated River Basin Management, John W. Labadie
Modsim: Decision Support System For Integrated River Basin Management, John W. Labadie
International Congress on Environmental Modelling and Software
MODSIM 8.0 is a generic river basin management decision support system for analysis of long term planning, medium term management, and short term operations on desktop computers operating under MS Windows 2000/XP. MODSIM is free from expensive licenses for proprietary software since all components are developed from native code or shareware under the MS .NET Framework. MODSIM includes a powerful, interactive graphical user interface for creating, locating and connecting river basin network components, as well as spreadsheet-style data editing in an object-oriented spatial data base management system. Flexible data import and export tools are included for interaction with external data …
Development Of An Integrated Decision Support System For Water Quality Control In The Upper Litani Basin, Lebanon, Hamed Assaf, Mark Saadeh
Development Of An Integrated Decision Support System For Water Quality Control In The Upper Litani Basin, Lebanon, Hamed Assaf, Mark Saadeh
International Congress on Environmental Modelling and Software
Compared to the limited water supply in the Middle East, Lebanon is perceived to be a water rich country. Yet, it faces a growing water supply problem due to many factors including increases in demand, inadequate investment in infrastructure, and deterioration of water quality. Being the foremost water resource in Lebanon, the Litani River is at the center of several major water supply and irrigation schemes. However, the river water quality is severely impacted by the current practice of releasing untreated sewage into its water body, specifically in its upper basin which is home to about half a million inhabitants. …
Free And Open Source Geospatial Tools For Environmental Modeling And Management, Ari Jolma, Daniel P. Ames, N. Horning, M. Neteler, Aaron Racicot, T. Sutton
Free And Open Source Geospatial Tools For Environmental Modeling And Management, Ari Jolma, Daniel P. Ames, N. Horning, M. Neteler, Aaron Racicot, T. Sutton
International Congress on Environmental Modelling and Software
Geospatial software tools (GIS) are used for creating, viewing, managing, analyzing, and utilizing geospatial data. Geospatial data can include socio-economic, environmental, geophysical, and technical data about the Earth and societal infrastructure and it is pivotal in environmental modeling and management (EMM). Desktop, web-based, and embedded geospatial tools and systems have become an essential part of EMM. Environmental simulation models often require pre- or post-processing of geospatial data, or they can be tightly linked to a GIS, using it as a graphical user interface (GUI). Many local, regional, national, and international efforts are underway to create geospatial data infrastructures and tools …
Water Balance Modelling In Bowen, Queensland, And The Ten Iterative Steps In Model Development And Evaluation, Wendy D. Welsh
Water Balance Modelling In Bowen, Queensland, And The Ten Iterative Steps In Model Development And Evaluation, Wendy D. Welsh
International Congress on Environmental Modelling and Software
The viability of irrigated horticulture in a coastal catchment near Bowen in Queensland, Australia, is dependent on groundwater. The summer-dominant rainfall is extremely variable, ranging from 255 to 2358 mm/year and there are no large surface water storages. A model was sought to improve understanding of the local hydrology and assist with management of the groundwater. The 220 km2 area is data-rich with 260 observation bores plus stream gauging, metering of irrigation bores and detailed land use mapping. A water balance model based on Darcy s Law, which describes laminar water flow through soils, and using only the historical data …
Modsim: Decision Support System For Integrated River Basin Management, John W. Labadie
Modsim: Decision Support System For Integrated River Basin Management, John W. Labadie
International Congress on Environmental Modelling and Software
MODSIM 8.0 is a generic river basin management decision support system for analysis of long term planning, medium term management, and short term operations on desktop computers operating under MS Windows 2000/XP. MODSIM is free from expensive licenses for proprietary software since all components are developed from native code or shareware under the MS .NET Framework. MODSIM includes a powerful, interactive graphical user interface for creating, locating and connecting river basin network components, as well as spreadsheet-style data editing in an object-oriented spatial data base management system. Flexible data import and export tools are included for interaction with external data …
Development Of An Integrated Decision Support System For Water Quality Control In The Upper Litani Basin, Lebanon, Hamed Assaf, Mark Saadeh
Development Of An Integrated Decision Support System For Water Quality Control In The Upper Litani Basin, Lebanon, Hamed Assaf, Mark Saadeh
International Congress on Environmental Modelling and Software
Compared to the limited water supply in the Middle East, Lebanon is perceived to be a water rich country. Yet, it faces a growing water supply problem due to many factors including increases in demand, inadequate investment in infrastructure, and deterioration of water quality. Being the foremost water resource in Lebanon, the Litani River is at the center of several major water supply and irrigation schemes. However, the river water quality is severely impacted by the current practice of releasing untreated sewage into its water body, specifically in its upper basin which is home to about half a million inhabitants. …
Free And Open Source Geospatial Tools For Environmental Modeling And Management, Ari Jolma, Daniel P. Ames, N. Horning, M. Neteler, Aaron Racicot, T. Sutton
Free And Open Source Geospatial Tools For Environmental Modeling And Management, Ari Jolma, Daniel P. Ames, N. Horning, M. Neteler, Aaron Racicot, T. Sutton
International Congress on Environmental Modelling and Software
Geospatial software tools (GIS) are used for creating, viewing, managing, analyzing, and utilizing geospatial data. Geospatial data can include socio-economic, environmental, geophysical, and technical data about the Earth and societal infrastructure and it is pivotal in environmental modeling and management (EMM). Desktop, web-based, and embedded geospatial tools and systems have become an essential part of EMM. Environmental simulation models often require pre- or post-processing of geospatial data, or they can be tightly linked to a GIS, using it as a graphical user interface (GUI). Many local, regional, national, and international efforts are underway to create geospatial data infrastructures and tools …
Water Balance Modelling In Bowen, Queensland, And The Ten Iterative Steps In Model Development And Evaluation, Wendy D. Welsh
Water Balance Modelling In Bowen, Queensland, And The Ten Iterative Steps In Model Development And Evaluation, Wendy D. Welsh
International Congress on Environmental Modelling and Software
The viability of irrigated horticulture in a coastal catchment near Bowen in Queensland, Australia, is dependent on groundwater. The summer-dominant rainfall is extremely variable, ranging from 255 to 2358 mm/year and there are no large surface water storages. A model was sought to improve understanding of the local hydrology and assist with management of the groundwater. The 220 km2 area is data-rich with 260 observation bores plus stream gauging, metering of irrigation bores and detailed land use mapping. A water balance model based on Darcy s Law, which describes laminar water flow through soils, and using only the historical data …
Simulation Of Flow Hydrographs At An Ungauged Site In Taiwan Using A Distributed Rainfall-Runoff Model, Pao-Shan Yu, Yu-Chi Wang, Chun-Chao Kuo
Simulation Of Flow Hydrographs At An Ungauged Site In Taiwan Using A Distributed Rainfall-Runoff Model, Pao-Shan Yu, Yu-Chi Wang, Chun-Chao Kuo
International Congress on Environmental Modelling and Software
Simulation of flow hydrograph at an ungauged site recently has attracted considerable attention. A distributed rainfall-runoff model not only can describe the spatial heterogeneity of physiographical and hydrological characteristics in the catchment, but also can simulate the hydrological processes inside the studied area. If a distributed rainfall-runoff model can be adequately verified based on measurements both at the outlet and inside the studied area, then confidence that the model can accurately simulate the hydrological processes inside the studied area becomes more justified. The upstream catchment of Yan-Shoei creek was chosen as the study area, and historical flow hydrographs are observed …
Optimum Sustainable Water Management In An Urbanizing River Basin In Japan, Based On Integrated Modelling Techniques, E. Kudo, Manfred Ostrowski
Optimum Sustainable Water Management In An Urbanizing River Basin In Japan, Based On Integrated Modelling Techniques, E. Kudo, Manfred Ostrowski
International Congress on Environmental Modelling and Software
In this research, a Decision Support System (“DSS”) was developed, using a combination of various existing models for Integrated Water Management (“IWM”). This DSS is then applied to a small urbanized basin, the Taguri-River basin in Japan. In developing the DSS, different existing dynamic and steady state models were combined. These models include a rainfall-runoff analysis model, two river analysis models, a groundwater analysis model, and a geographical information system (“GIS”). The DSS was developed based on three basic elements: Database, model base, and tool base. A data exchange architecture was chosen and then exchange programs were written that are …
Contribute Of Gis Techniques In The Evaluation Of Anthropic Impact Change In A Sub-Alpine Shallow Lake, G. Tartari, D. Copetti, G. Barbiero, S. Tatti, R. Pagnotta
Contribute Of Gis Techniques In The Evaluation Of Anthropic Impact Change In A Sub-Alpine Shallow Lake, G. Tartari, D. Copetti, G. Barbiero, S. Tatti, R. Pagnotta
International Congress on Environmental Modelling and Software
This paper presents a calculation method to estimate theoretical nutrient loads (phosphorus and nitrogen) reaching to Pusiano catchment (Northern Italy) between 1961 and 2000. This approach integrate a classical method of nutrient loads calculation with aspects concerning GIS techniques. The dataset used in this work is a collection of socio-economic data concerning point and nonpoint sources. The nutrient loads are calculated using appropriate coefficients integrated with an empirical evaluation of the decay load along the distance between the source and the lake shore. The theoretical results are compared with the lake phosphorus loads calculated using a steady state mass balance …
Some Novel Information Systems For The Empowerment Of A Decision-Making Process On A Territory: Outcomes From A Four Years Participatory Modeling In Senegal, Patrick D’Aquino
Some Novel Information Systems For The Empowerment Of A Decision-Making Process On A Territory: Outcomes From A Four Years Participatory Modeling In Senegal, Patrick D’Aquino
International Congress on Environmental Modelling and Software
The Maps, the Geographical Information Systems (GIS), the Role-Playing Games (RPG) and the other participatory supports, the Multi-agent Systems (MAS): all are modeling supports designed through their conceivers' perception. Even in participatory approaches, these designing and modeling can take off towards technocratic, but often unconscious, drifts. Yet, a true empowerment of local governance means to let stakeholders and their principals totally handle their information and modeling systems. The mere access to information is certainly a first step but it is far from a true power over it, so long as this local people are not able to select, process and …
Spasim: A Software To Simulate Cellular Automata Models, Niandry Moreno, Magdiel Ablan, Giorgio Tonella
Spasim: A Software To Simulate Cellular Automata Models, Niandry Moreno, Magdiel Ablan, Giorgio Tonella
International Congress on Environmental Modelling and Software
Simulation models are a key tool to study the dynamics of ecological systems where space plays a fundamental role. These kinds of models in which the dynamic of the system is space-dependent are called spatial simulation models. The most frequently used approach to simulate spatial models consists of a simulation program (typically developed in a general purposed language) that periodically exports results to a Geographic Information System (GIS) to visualize or analyze the spatial component. This type of approach requires of a user programming skills and to be knowledgeable about GIS, limiting the use of the model and increasing the …
Renewable Energy: A Decision Support System For Forest Biomass Exploitation, D. Freppaz, R. Minciardi, M. Robba, Roberto Sacile, A. Taramasso
Renewable Energy: A Decision Support System For Forest Biomass Exploitation, D. Freppaz, R. Minciardi, M. Robba, Roberto Sacile, A. Taramasso
International Congress on Environmental Modelling and Software
A decision support system for forest biomass exploitation for energy supply is presented. In the proposed approach, geographic information system based techniques are integrated with mathematical programming methods yielding a comprehensive system, which allows formalizing the problem, taking decisions, and evaluating their effects. The aim of this work is to evaluate the possibility of biomass exploitation for both thermal and electric energy production in a provincial area. The decision support system is able to locate and size different kinds of plants on the territory (defining which kind of energy is convenient to produce for the specific area), take into account …
Implementing A Process-Based Decision Support Tool For Natural Resource Management - The Geowepp Example, C. S. Renschler, D.C. Flanagan
Implementing A Process-Based Decision Support Tool For Natural Resource Management - The Geowepp Example, C. S. Renschler, D.C. Flanagan
International Congress on Environmental Modelling and Software
Practical decision-making in spatially distributed natural resource management is increasingly based on process models linked to Geographical Information Systems (GIS). Geo-spatial environmental data and decision support tools can now be made available to a much larger audience by using powerful personal computers and internet-accessible mapping tools. Traditionally decision support tools based on process models were not typically developed for applications across a wide range of spatial and temporal scales of interest, utilizing commonly available data of variable precision and accuracy, and Graphical User Interfaces (GUIs) to communicate with a diverse spectrum of users with different levels of expertise. To implement …
The Emission Inventory System For Upper Austria: The Role Of Environmental Information Systems In Translating Complex Information To A User S Requirements, Wilfried Winiwarter, Gerald Schimak
The Emission Inventory System For Upper Austria: The Role Of Environmental Information Systems In Translating Complex Information To A User S Requirements, Wilfried Winiwarter, Gerald Schimak
International Congress on Environmental Modelling and Software
Advances in environmental sciences increase the difficulty in creating products that can be readily used by non-experts. In this paper we demonstrate how a carefully designed environmental system is able to provide solutions. While complex transformations are kept in the system background, predefined expert choices give a user great flexibility in selecting what is required for the specific applications. In the given case study, emissions of atmospheric pollutants in the province of Upper Austria can not only be calculated for a multitude of options, but a scenario tool also allows for deep modifications of the models, if required. The example …