These movies are from various presentations that I have given over the last 9 years or so. Please feel free to browse, and/or use them for presentation/lecture purposes if they help. If so, please just place a brief line, note etc.. that they came from here.

Alluvial Fan animation. These images form part of the ESP&L paper from 2002. They show a small alluvial fan developing at the base of Cam Gill Beck catchment, Starbotton, Yorkshire Dales. The simulation runs from 9300 cal. BP to present. Its a very large file (c.60mb).

Meandering simulation. From a section of the Upper Severn, from Llandinam to Caersws. Part of model development, Nov 2006.

Braided river 1. This shows a completely experimental CAESAR run of a braided river in the manner of a recirculating flume. It is a 150 by 100 cell reach, with water and sediment re-circulated at the top of the reach (the left) at the same location that it left at the base. This causes the channel to hop about from side to side. The images show water depth (in increasing blues to purples) and this is placed over the grainsize (shaded in black (coarse) to white (fine)). This neatly shows the development of splays and bars - and how their grainsize is represented.

Waitiaki Braided river with dynamic vegetation. This run shows a 20 by 4km reach of the Waitaki river, New Zealand evolving over a 10 year sequence. It is driven by a gauged record, and has a dynamic vegetation model, in that vegetation grows where there is no water present - and where it grows stabilises the surface of the bars. Vegetation can also be ripped out if a flood is large enough. This interestingly shows how vegetation creeps in towards the centre of the channel, then is pushed back to the edges, then creeps in again, ultimately leaving a single threaded channel. These results were presented at the AGU fall meeting (2004) and are being written up in a paper for Geomorphology, that should be published in 2006.

Lateral erosion. This is a preliminary - very(!) preliminary animation of the new cellular meandering module that has been developed for CAESAR. This was presented at the EGU in Vienna (2005) and the algorithm that drives this lateral erosion (refined since this movie was made!) is described in a paper for ESP&L that is due to come out in Jan 2006.

Suspended Sediment. Again - a preliminary image, but it shows how suspended sediment is dropped out over a simulated flood on the River Teifi, near Lampeter, Wales, U.K. The black shows where the largest concentrations are - in the hollows and palaeochannels. Very much work in progress.

Fox Glacier Video clip from April 2006, showing large (house sized) chunks of the glacier dropping in to the proglacial stream. A similar sized lump had just fallen off, and I had run over to the river to take a movie of the car sized lumps of ice bounding down the river, when this collapse happened. Was 1 of about 5 that we saw in about 2 hours. If you continue on with the clip after the fall, you can see the large lumps of ice (from the previous collapse) rolling down the river.