Environmental Prediction Systems: Design, Implementation Aspects and Operational Experience with Application to Accidental Releases

The numerical simulation of atmospheric dispersion is used increasingly to assess the state of the environment. A well known example is the use of numerical dispersion models with complex chemistry schemes for studies of atmospheric oxidants and acid rain phenomenon. The other important application of tracer models is the simulation of accidental releases of toxic and radioactive materials. The Atmospheric Environment Service (AES) of Canada recently used such a tracer model to simulate the dispersion of nuclear debris from the Chernobyl reactor accident. This research was the beginning of the development of a sophisticated Environmental Emergency Response (EER) system which is currently operational at the Canadian Meteorological Center (CMC). Similar efforts were also undertaken by the meteorological services of other countries. The objective of this paper is to present a general description of the Canadian Nuclear Emergency Response Model (CANERM) and compare it to similar models which are being used in other meteorological centers around the world.

[1]  William R. Goodin,et al.  Numerical solution of the atmospheric diffusion equation for chemically reacting flows , 1982 .

[2]  A. Eliassen.  A Review of Long-Range Transport Modeling , 1980 .

[3]  F. Kimura,et al.  Numerical Simulation of Global Scale Dispersion of Radioactive Pollutants from the Accident at the C , 1988 .

[4]  E. F. Bradley,et al.  Flux-Profile Relationships in the Atmospheric Surface Layer , 1971 .

[5]  A. Chamberlain,et al.  Transport of iodine from atmosphere to ground , 1966 .

[6]  A. Robert.  A Semi-Lagrangian and Semi-Implicit Numerical Integration Scheme for the Primitive Meteorological Equations , 1982 .

[7]  Janusz A. Pudykiewicz,et al.  Some properties and comparative performance of the semi‐Lagrangian method of Robert in the solution of the advection‐diffusion equation , 1984 .

[8]  J. Gillis,et al.  Methods in Computational Physics , 1964 .

[9]  Janusz A. Pudykiewicz,et al.  Preliminary results From a partial LRTAP model based on an existing meteorological forecast model , 1985 .

[10]  Harold Ritchie,et al.  Semi-Lagrangian advection on a Gaussian grid , 1987 .

[11]  R. Pielke.  Mesoscale Meteorological Modeling , 1984 .

[12]  John Henderson,et al.  Short‐term forecasting with a multi‐level spectral primitive equation model part I ‐ model formulation , 1976 .

[13]  J. Pudykiewicz.  Numerical simulation of the transport of radioactive cloud from the Chernobyl nuclear accident , 1988 .

[14]  N. A. Phillips,et al.  A COORDINATE SYSTEM HAVING SOME SPECIAL ADVANTAGES FOR NUMERICAL FORECASTING , 1957 .

[15]  R. Lange,et al.  ADPIC—A Three-Dimensional Particle-in-Cell Model for the Dispersal of Atmospheric Pollutants and its Comparison to Regional Tracer Studies , 1978 .

[16]  A. Kasahara,et al.  Computational Aspects of Numerical Models for Weather Prediction and Climate Simulation , 1977 .

[17]  Janusz A. Pudykiewicz,et al.  Simulation of the Chernobyl dispersion with a 3-D hemispheric tracer model , 1989 .

[18]  Application of a Semi-Lagrangian Integration Scheme to the Moisture Equation in a Regional Forecast Model , 1985 .