Contaminated groundwater resulting from pyrite oxidation of acid sulphate soils (ASS) is a major environmental problem in coastal Australia. A column test was carried out for an extended period with recycled concrete to study the efficiency of the reactive materials for neutralising acidic groundwater. Results show that the actual acid neutralisation capacity of the recycled concrete could decr...

Deciphering ecological effects of major catastrophic events such as earthquakes, tsunamis, volcanic eruptions, storms and fires, requires rapid interdisciplinary efforts often hampered by a lack of pre-event data. Using results of intertidal surveys conducted shortly before and immediately after Chile's 2010 M(w) 8.8 earthquake along the entire rupture zone (ca. 34-38°S), we provide the first q...

Papers reviewed 1. C.A. Onstad and A.J. Bowie, Basin sediment yield modelling using hydrological variables. 2. T. Mizutani, Erosion processes in mountain basins in humid regions. 3. I. Bogardi, L. Duckstein, F. Szidarovszky andM. Fogel, Reservoir sedimentation under uncertainty: analytic approach versus simulation. 4. J.P. Bennett and CF. Nordin, Simulation of sediment transport and armouring (...

Incision as a result of fluvial erosion is an important process to model when simulating landform evolution. For gullies, it apparent that coupled with the processes cause incision there must be range stop incision. Once started, rills and gullies will grow infinitely without reduction in support area and/or being arrested by deposition armouring. Some these have been well studied under heading...

abstract the concept of armouring is used to discuss the coarse surface layer in rivers. selective erosion in an alluvial channel reach for which there is no upstream sediment supply can lead to formation of a layer coarser than the under laying material. this phenomenon inhibits sediment transport from the reach.numerical modeling of armouring river bed, provides an approach to simulation of t...

Abstract—This paper presents analytical formulas, based on the “thin wire model”, for calculating the ELF (Extremely Low Frequency) sub-sea electromagnetic field produced by a submarine power cable. Two different models are studied: the first and simpler one (already present in literature) is based on the infinite sea model while the second and more realistic one, that we propose, takes into ac...

Grain-size distributions of bed material sediment in large alluvial rivers are required in various scientific and management applications, but characterizing gravel beds in navigable rivers is hampered by difficulties in sediment extraction. The newly developed and preliminarily tested sampler reported here can extract sediment from a range of riverbeds. The 36 × 23 × 28 cm stainless steel toot...