Autorentext

Brian Henderson-Sellers is Director of the Centre for Object Technology Applications and Research and Professor of Information Systems at the University of Technology, Sydney. He has authored over a dozen books on object and agent technologies and is well-known for his work in OO methodologies and in OO metrics. In 1999, he was voted number 3 in the Who's Who of Object Technology. Brian has been a member of the Review Panel for the OMG's Software Process Engineering Model standards initiative and a member of the UML2.0 review team, was General Chair of the IFIP WG8.1 Working Conference on Method Engineering and is Co-Editor of the ISO/IEC 24744 International Standard "Software Engineering Metamodel for Development Methodologies". Jolita Ralyté is a senior researcher and lecturer at the University of Geneva's Department of Information Systems. Her research areas include situational method engineering, information systems development methods, information systems evolution and interoperability, requirement engineering, and services science. Currently she is a Vice-Chair of the IFIP WG 8.1 and leads the Method Engineering Task Group within the IFIP WG 8.1. Pär Ågerfalk is a professor at Uppsala University's Department of Informatics and Media, where he holds the Chair of Computer Science in Intersection with Social Sciences. His research on open source software development, open innovation, globally distributed and flexible software development, conceptual modelling and method engineering has appeared in a number of leading journals and conferences.Matti Rossi is a professor of information systems at Aalto University School of Economics. He has been involved in the development of research prototypes and commercial products, including MetaEdit Personal, a single user CASE tool, and MetaEdit+, a multi-user integrated CASE tool, selected among the three most innovative new software tools at CeBIT 95 by Byte and used for thedevelopment of user interfaces for Nokia's latest generations of mobile phones.

Inhalt

1. Introduction.- 2. Forced Plume Model.- 2.1 Formulation of basic model equations.- 2.2 Entrainment velocity.- 2.3 Surface roughness and wind profile.- 2.4 Dense effluents.- 3. Cross-Sectional Profiles.- 3. 1 Top Hat and Gaussian profiles.- 3.2 Radial length scales.- 3.3 Urban plumes.- 4. Gaussian Plume Model.- 4.1 Fickian diffusion.- 4.2 The third phase and its relation to Fickian diffusion.- 5. Ground Level Concentrations.- 6. Software specification.- 7. Conclusions.- References.