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Assessment of urban and industrial air quality: a real-time web based approach EUREKA E! 3266 WEBAIR. DDr. Kurt Fedra, ESS GmbH, Austria Prof. Tai J. Kim, BioTel, South Korea. Assessment. From Latin assidere : to sit beside or assist a judge To determine the rate or amount
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Assessment of urban and industrial air quality: a real-time web based approachEUREKA E! 3266 WEBAIR DDr. Kurt Fedra, ESS GmbH, Austria Prof. Tai J. Kim, BioTel, South Korea
Assessment From Latin assidere: to sit beside or assist a judge • To determine the rate or amount • To make an official evaluation • To determine the importance, size, or value of ….. (for the purpose of taxation)
Application domain: Air quality is a problem in all urban conglomerates world wide; Main pollutants: SO2, NOx, CO, O3, PM10/2.5, benzene, lead, …. Air pollution closely related to energy: CO2 and GHG (Kyoto) Emissions by: traffic, industry, households, agriculture/biogenic sources
Dynamic Assessment: Impact assessment: Planning oriented, precautionary principle, minimize and mitigate negative impacts. Alternative/extension: Impact assessment as a continuous, real-time process of monitoring of impacts, compliance monitoring, forecasting, after implementation: aims at real-time control.
Air quality assessment and management: EUREKA, WEBAIR Fully web based management information system, multiple models, nested grids, integrated data bases and GIS, real-time and scenario analysis, optimization, ….. AirWare is the result of a number of European and international RTD projects and pilot applications:
EUREKA E! 3266 WEBAIR Partner countries:Austria, Croatia, Cyprus, Finland, Italy, Lithiuania, Morocco, Russia,Poland, Portugal, Switzerland, Slovenia, Slovakia, South Korea, South Africa, Turkey Topics: • real-time, on-line web-based implementation of models and tools (nowcasting, forecasting) , • eBusiness, eConsulting, eGovernment
Application domain: • Compliance monitoring (96/62/EC), ozone warning (forecast), reporting • Maintenance of emission inventories (CO2/GHG), dynamic emission modeling • Simulation models for scenario analysis and real-time now-casting and forecasting • Links to traffic and energy models • Environmental impact assessment • Optimization for emission control strategies
Implementation: • Fully web based implementation • Flexible client-server architecture, ranging from a single stand-alone systems to distributed networks and clusters; • Clients: PC with standard web browser • Integration of simulation models, data bases (emission modeling), and monitoring (data assimilation)
AirWare architecture Real-time monitoring Remote data bases HPCN data bases GIS expert system models Local client ( LAN ) Internet client
AirWare components: Data bases: • Emission inventories (georeferenced) , emission coefficients, temporal patterns • Observation data (time series) • GIS data (DEM, landuse, population) Simulation Models: • PBM photochemical box model • AERMOD/AERMET (local advanced Gaussian) • CAMx 3D nested grid Eulerian • MM5, DWM (diagnostic wind model)
AirWare functionality: Emission inventoriesare supported for • industrial point sources, • commercial/ residential area sources, • street networks (line sources). Linked to the GIS, graphical display and analysis tools including estimation tools (rule-based expert system), automatic input to the simulation models.
AirWare functionality: Embedded GIS: • MapServer • MapComposition • MapCatalog • Positioning of Objects • Map Import • Selection of background maps
AirWare functionality: Monitoring Data: Time series for • Air quality observations • Meteorological variables • Emission data (major stacks) Includes the linkage to real-time telemetry data and database servers. Time series are attributes of georeferenced Monitoring Station Objects.
AirWare functionality: Basic models in AirWare include: • AERMOD (short term, 24 hours, seasonal/annual long-term) • DWM 3D diagnostic wind model • MM5 dynamic 3D meteorology • CAMx 3D dynamic Eulerian model, photochemistry and nested grid • PBM photochemical box model • links to external models: Lagrangian and 3D dynamic multi-puff, heavy gas (RiskWare)
Simulation models: • Run interactively for scenario analysis for model domains or individual sources • Single source impact assessment (annual) • Monitoring station location optimization • Run automatically every hour (now-casting) or every day (24/48 hour forecasting) with data assimilation Meteo data (MM5 or model interpolated observation data) and dynamic (modeled) emission data are automatically provided,
Impact assessment: For new or modified sources: • Interactive construction of new emission sources • Extracts source characteristics from the emission inventory; • Retrieves meteorological data for an annual model run at hourly resolution; • Finds monitoring points (based on annual average maxima) in addition to user defined location • Computes absolute and relative contributions, impacts relative to user defined reference.