News
linking 3D particle-scale structures to the evolution of gravel bed morphology
News
AGU conference – December 2016
Hal presented out most recent results at the AGU Fall Meeting 2016; our poster is available here.
Field work – July 2016
During our annual fieldwork we scanned the reach, made tilt table measurements and collected sediment for grain size analysis.
EGU conference – April 2016
Rebecca gave a talk on extracting grain property metrics from our CT basket scans at the EGU Meeting 2016; the slides are available here.
AGU conference – December 2015
Hal presented our latest work at the AGU Fall Meeting 2015; our poster is available here.
Lab work – November 2015
Progress has been made on segmenting out the stones in the CT data, identifying contacts, and calculating properties including size, pivot angles and exposure.
British Society for Geomorphology conference – September 2015
Hal presented the progress to date with processing the CT data: slides are available here.
Field work – September 2015
The new set of baskets was installed for the coming winter season.
Field work – June 2015
We visited the field site to collect the first set of baskets, and to install a new set. Waxing the baskets enables them to be transported back to mu-vis. Our monitoring equipment was also upgraded to solve some initial problems.
Lab work – June 2015
Hal is getting to grips with processing CT scan data, and we can now segment our scans into grains, matrix and air.
Lab work – early 2015
CT scanning of the baskets from the flume is underway. The high density of some baskets is making life challenging for the µ-VIS team.
Field site – February 2015
Equipment installation at the field site is ongoing, and initial data collection has begun. Project field data are being supplemented by the use of seismometers to test their ability to measure bedload transport. Seismometers are on loan from the NERC equipment pool.
Physical modelling – January 2015
The physical modelling experiments have been completed and disassembly of the flume equipment was undertaken.
AGU conference – December 2014
The initial results from analysis of the CT data were presented at the AGU Fall Meeting 2014. Hal Voepel successfully presented these early project results.
Field site – December 2014
Bury Greek Brook visit to survey bed topography post-flood thwarted by water still flowing in the channel. Great evidence of bed-mobility however which will be interesting to scan when flows recede.
Lab work – October 2014
The first gravel pot from Bury Green Brook was returned to the lab and prepared for CT scan at the µ-VIS facility at the University of Southampton.
Physical modelling – September 2014
After the initial set-up Hal Voepel successfully completed the first run of the pool-riffle sequence flume experiments. The model is responding well with bed material mobilisation.
Physical modelling – August 2014
The prototype scale pool-riffle sequence physical model ready for flow testing thanks to the hard work of postdoc Hal Voepel.
Physical modelling – August 2014
PATCheS team meeting prior to the beginning of the physical modelling to discuss the flume runs and the challenges therein.
Field site – July 2014
David Sear and Hal Voepel visited Bury Green Brook during a period of low flow and found this example of a dry pool-riffle sequence.
Physical modelling – June 2014
Construction of the physical modelling experiments began in June at the University of Southampton’s Chilworth Science Park.
