The multi-nation, high-resolution field study of Meteorology and Diffusion over Non-uniform Areas (MADONA) was conducted by scientists from the United States, United Kingdom, Germany, Denmark, Sweden, and The Netherlands at Porton Down, Salisbury, Wiltshire, UK during September and October 1992. The host of the field study was the Chemical and Biological Defence Establishment at Porton Down. MADONA was designed and conducted for high resolution meteorological data collection and diffusion experiments ...
The scientific objective for our participation in MADONA was to investigate fundamental questions regarding the statistical properties of the instantaneous concentration fluctuations in smoke plumes and puffs. The joint- venture Porton Down experiments, with international participation and support facilitated this objective. Modelling objectives included investigation and experimental evaluation of flow and diffusion modelling based on our LINCOM/ RIMPUFF real-time codes.
In support of the smoke diffusion test program, two experimental activities were conducted in Meadow Brook Valley during Project Wind, Phase IV: 1. Operated two sonic anemometers/thermometers to measure velocity and temperature signals and therefrom obtained direct measurements of mean variances and fluxes of wind speed, turbulence, shear and heat fluxes. One sonic, sonic no. 1. was located centrally in the valley near CP and the main mast. Sonic no. ...