Dr Jaco Baas
Uwch Ddarlithydd
Contact info
Position: Reader
Room: 305 Craig Mair
Phone: 01248 382894
E-mail: j.baas@bangor.ac.uk
Web: Google Scholar, ResearchGate
I am Reader in Fine Particle Dynamics in the School of Ocean Sciences, and specialise in the erosion, transport, and deposition of fine, cohesive sediment. I graduated from the University of Utrecht (the Netherlands) with a combined BSc/MSc in Sedimentary Geology in 1988. At the same university, I completed my PhD in Bedform Dynamics in 1993. Subsequently, I was Postdoctoral Research Fellow at Geomar Research Centre in Kiel, Germany (studying Late-Pleistocene climate signals in slope sediments from the North-Atlantic continental margin), at the University of Rouen, France (on resuspension processes in the Seine estuary and gravel mining in the English Channel), and at the University of Bergen, Norway (investigating grain orientations in turbidite deposits).
In 1998, I moved to the School of Earth and Environment at the University of Leeds, where I started as a Marie Curie Research Fellow and then became a Senior Research Fellow. My research in Leeds included the physical properties of particulate density currents and their deposits and the dynamics of turbulence-modulated flows carrying cohesive clay particles. I took up my present post in Bangor in January 2007.
I am a process sedimentologist with more than 25 years of experience in sediment transport in fluvial, shallow marine, and deep-marine environments. My main fundamental and applied research interests include physical and biological cohesion in fine-grained sediment, the dynamics of sedimentary bedforms, and sediment gravity flows in the deep ocean, but my expertise also stretches to hydraulic engineering, palaeoclimatology, and mathematical modelling. I combine experimental research with field work to answer timely research questions, taking a blue-skies approach as well as collaborating with industry.
Research Area
- Cyhoeddwyd
Blood, lead and spheres: a hindered settling equation for sedimentologists based on metadata analysis
Baas, J. H., Baker, M. L., Buffon, P., Strachan, L. J., Bostock, H. C., Hodgson, D. M., Eggenhuisen, J. T. & Spychala, Y. T., Meh 2022, Yn: The Depositional Record. 8, 2, t. 603-615 13 t.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Integrating field and laboratory approaches for ripple development in mixed sand-clay-EPS
Baas, J. H., Baker, M., Malarkey, J., Bass, S. J., Manning, A. J., Hope, J. A., Peakall, J., Lichtman, I., Ye, L., Davies, A., Parsons, D. R., Paterson, D. M. & Thorne, P. D., Rhag 2019, Yn: Sedimentology. 66, 7, t. 2749-2768 20 t.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Thresholds of intrabed flow and other interactions of turbidity currents with soft muddy substrates
Baas, J., Manica, R., Puhl, E. & Borges, A. L. D. O., 1 Rhag 2016, Yn: Sedimentology. 63, 7, t. 2002-2036Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Turbulence modulation behind ripples and dunes in clay-laden currents.
Baas, J. H. & Best, J. L., 1 Ion 2004.Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
- Cyhoeddwyd
On the flow of natural clay suspensions over smooth and rough beds.
Baas, J. H. & Best, J. L., 1 Ion 2008.Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
- Cyhoeddwyd
When is a clay-laden current turbulent, transitional or laminar? A new stability diagram based on flow dynamics and clay concentration.
Baas, J. H., Best, J. L., Peakall, J. & Wang, M., 1 Ion 2005.Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
- Cyhoeddwyd
A phase diagram for turbulent, transitional and laminar clay suspension flows.
Baas, J. H., Best, J. L., Peakall, J. & Wang, M., 1 Maw 2009, Yn: Journal of Sedimentary Research. 79, 3-4, t. 162-183Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Processes and products of turbidity currents entering soft muddy substrates
Baas, J. H., Manica, R., Puhl, E., Verhagen, I. & de O.Borges, A. L., Mai 2014, Yn: Geology. 42, 5, t. 371-374Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Flume analogue of geometry, structure and texture of high-density turbidity current deposits at the mouth of deep-marine channels.
Baas, J. H. & Postma, G., 1 Ion 2002.Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
- Cyhoeddwyd
Mixed Sand—Mud Bedforms Produced by Transient Turbulent Flows in the Fringe of Submarine Fans: Indicators of Flow Transformation
Baker, M. L. & Baas, J. H., Awst 2020, Yn: Sedimentology. 67, 5, t. 2645-2671 27 t.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Does sand promote or hinder the mobility of cohesive sediment gravity flows?
Baker, M. L. & Baas, J., Chwef 2023, Yn: Sedimentology. 70, 4, t. 1110-1130 21 t.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
The Effect of Clay Type on the Properties of Cohesive Sediment Gravity Flows and their Deposits
Baker, M. L., Baas, J. H., Malarkey, J., Silva Jacinto, R., Craig, M. J., Kane, I. A. & Barker, S., 2017, Yn: Journal of Sedimentary Research. 87, 11, t. 1176-1195 59 t.Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Temporal flow structure of an experimental particulate density current linked to textural variation of the resultant flume deposit.
Barker, S., McCaffrey, B., Haughton, P., Baas, J. H. & Choux, C., 1 Ion 2004.Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
- Cyhoeddwyd
Comparing flume and computer simulated turbidite flows – Implications for sediment deposition patterns and reservoir quality.
Bond, C. E., Baas, J. H., Vinnels, J., McCaffrey, W., Waltham, D. & McClean, S., 1 Ion 2008.Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
- Cyhoeddwyd
Critical parameters for cross-fault flow within deep marine clastic reservoirs: An integrated 3D stratigraphic and structural approach.
Bradbury, P. W., Freeman, S. R., Harris, S. D., Knipe, R. J., McCaffrey, W. D. & Baas, J. H., 1 Ion 2004.Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
- Cyhoeddwyd
Enhanced fault seal evaluation of turbidite systems in mature basins: Examples from around the globe.
Bradbury, P. W., Freeman, S. R., Harris, S. D., Knipe, R. J., McCaffrey, W. D., Baas, J. H. & Lewis, G., 1 Ion 2005.Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
- Cyhoeddwyd
Suspended and bedload dynamics in a tidally influenced river: the river Dyfi, Wales, UK.
Brewer, P., Vericat, D., Baas, J. H., Jago, C. F., Brasington, J., Wheaton, J. M. & Causer, F., 1 Ion 2007.Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
- Cyhoeddwyd
Comparison of spatio-temporal evolution of experimental particulate gravity flows at two different initial concentrations, based on velocity, grain size and density data.
Choux, C. M., Baas, J. H., McCaffrey, W. D. & Haughton, P. D., 1 Awst 2005, Yn: Sedimentary Geology. 179, 1-2, t. 49-69Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Comparison of spatio-temporal evolution of experimental particulate gravity flows at two different initial concentrations, based on velocity, grain size and density data.
Choux, C., Baas, J. H., McCaffrey, W. D. & Haughton, P. D., 1 Ion 2004.Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
- Cyhoeddwyd
Biomediation of submarine sediment gravity flow dynamics
Craig, M., Baas, J. H., Amos, K. J., Strachan, L. J., Manning, A. J., Paterson, D. M., Hope, J. A., Nodder, S. D. & Baker, M. L., Ion 2020, Yn: Geology. 48, 1, t. 72-76Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Dynamics and deposition of sediment-bearing multi-pulsed flows and geological implication
Ho, V. L., Dorrell, R. M., Keevil, G., Thomas, R. E., Burns, A. D., Baas, J. H. & McCaffrey, W. D., Tach 2019, Yn: Journal of Sedimentary Research. 89, 11, t. 1127-1139Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Interactions between sediment microbial ecology and physical dynamics drive heterogeneity in contextually similar depositional systems
Hope, J. A., Malarkey, J., Baas, J. H., Peakall, J., Parsons, D., Manning, A. J., Bass, S., Lichtman, I., Thorne, P., Ye, L. & Paterson, D. M., Hyd 2020, Yn: Limnology and Oceanography. 65, 10, t. 2403-2419Allbwn ymchwil: Cyfraniad at gyfnodolyn › Erthygl › adolygiad gan gymheiriaid
- Cyhoeddwyd
Passive sediment filling of U-shaped animal burrows.
Kellman, P., Baas, J. H., Best, J. L. & Uchman, A., 1 Ion 2004.Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
- Cyhoeddwyd
Experimental passive fill of U-shaped burrows.
Kellman, P., Baas, J. H., Best, J. L. & Uchman, A., 1 Ion 2005.Allbwn ymchwil: Cyfraniad at gynhadledd › Papur
- Cyhoeddwyd
Bedforms in high concentration flows – Preliminary results of laboratory experiments.
Kellman, P., Best, J. L., Baas, J. H., Peakall, J. & Parsons, D., 1 Ion 2006.Allbwn ymchwil: Cyfraniad at gynhadledd › Papur