Equatorial long-wave theory applies where a small horizontal aspect ratio between meridional and zonal length scales is assumed. In an idealized setting, the theory suggests that (i) meridional wind is small, (ii) geostrophic balance holds in the meridional direction, and (iii) inertio-gravity waves are small in amplitude or ‘‘filtered out.’’ In this paper a spectral data analysis method is use...

The paper presents the concept of "Environmental Life-Cycle Engineering" as a preventative and systems based approach to environmental improvements in industrial society. The concept is motivated by present major changes in strategies for industrial environmental performance. It is also motivated by long-term needs in terms of environmental efficiency and multidisciplinar optimisation. This lea...

Environmental engineering education has been the focus of much attention in recent years. In the past, environmental engineering, more commonly known then as sanitary or public-health engineering, was taught as a subject within the civil engineering curriculum. As time progressed, and with it the realisation of the significance of the new field in engineering environmental engineering it began ...