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

Sediment Dynamics and Morphology

  1. 2006
  2. Cyhoeddwyd

    An experimental model for turbulence modulation in natural clay-laden flows over flat beds, ripples and dunes.

    Baas, J. H., Best, J. L. & Kellman, P., 1 Ion 2006.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapur

  3. 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 gynhadleddPapur

  4. Cyhoeddwyd

    Behaviour of fully ponded turbidity currents in confined basins: An experimental study.

    Patacci, M., McCaffrey, W. M., Haughton, P., Baas, J. H. & Keevil, G., 1 Ion 2006.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapur

  5. Cyhoeddwyd

    Can vertical stacking of low-angle bedforms produce rhythmic bedding in slurry flow deposits.

    Baas, J. H., Best, J. L. & Peakall, J., 1 Ion 2006.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapur

  6. Cyhoeddwyd

    Experimental model for turbulence modulation in natural clay-laden flows.

    Baas, J. H., Best, J. L., Peakall, J. & Wang, M., 1 Ion 2006.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapur

  7. Cyhoeddwyd

    Experimental turbidity current transport and deposition using scaled realistic bathymetry.

    Baas, J. H., McCaffrey, W. D., Pattaci, M. & Wyton, J., 1 Ion 2006.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapur

  8. Cyhoeddwyd

    Flow dynamics and depositional properties of cohesive mixed sand-mud currents with transient turbulent behaviour.

    Baas, J. H., Best, J. L., Peakall, J., McCaffrey, B. & Wang, M., 1 Ion 2006.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapur

  9. Cyhoeddwyd

    Grain fabric control on directional permeability in deep-marine sandstones.

    Baas, J. H., McCaffrey, W. D., Hailwood, E. & Kay, M., 1 Ion 2006.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapur

  10. Cyhoeddwyd

    Non-cohesive, mixed and cohesive high-density turbidity currents: Flow and deposit properties inferred from laboratory experiments.

    Manica, R., Baas, J. H., De Oliveira Borges, A. L., Maestri, R. D., Peakall, J. & McCaffrey, W. D., 1 Ion 2006.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapur

  11. Cyhoeddwyd

    The Deep-Water Architecture Knowledge Base: Towards objective comparison of deep-marine sedimentary systems.

    Baas, J. H. & McCaffrey, W. D., 1 Ion 2006.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapur

  12. 2005
  13. Cyhoeddwyd

    The Deep-Water Architecture Knowledge Base: Towards objective comparison of deep-marine sedimentary systems.

    Baas, J. H., McCaffrey, W. D. & Knipe, R. J., 1 Tach 2005, Yn: Petroleum Geoscience. 11, 4, t. 309-320

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  14. Cyhoeddwyd

    Detection and quantification of suspended sediment concentration and stratification in open channel flows: development and first results using electrical resistance tomography.

    Schlaberg, H. I., Baas, J. H., Wang, M., Best, J. L., Williams, R. A. & Peakall, J., 5 Medi 2005.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapur

  15. Cyhoeddwyd
  16. 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. 49-69

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  17. Cyhoeddwyd

    Sediment gravity flows: Recent advances in process and field analysis – Introduction

    Baas, J. H., 1 Awst 2005, Yn: Sedimentary Geology. 179, 1-2, t. 1-3

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  18. Cyhoeddwyd

    Submarine Mass Movements and their Consequences, by J. Locat, & J. Mienert

    Baas, J. H. & Strachan, L., 1 Mai 2005, Unknown.

    Allbwn ymchwil: Cyfraniad arallCyfraniad Arall

  19. Cyhoeddwyd

    Coupling between suspended sediment distribution and turbulence structure in a laboratory turbidity current.

    Baas, J. H., McCaffrey, W. D., Haughton, P. D. & Choux, C., 1 Ion 2005, Yn: Journal of Geophysical Research - Oceans. 110, c11, t. C11015

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  20. Cyhoeddwyd

    Detection and quantification of suspension concentrations and sedimentation layers in channel flows using electrical resistance tomography.

    Schlaberg, H. I., Baas, J. H., Wang, M., Best, J. L., Williams, R. A. & Peakall, J., 1 Ion 2005.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapur

  21. 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 gynhadleddPapur

  22. 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 gynhadleddPapur

  23. Cyhoeddwyd

    Turbulence modulation in clay-laden flows over ripples and dunes.

    Baas, J. H. & Best, J. L., 1 Ion 2005.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapur

  24. Cyhoeddwyd

    Turbulence modulation in clay-rich flows: Implications for depositional process and bed form geometry.

    Baas, J. H. & Best, J. L., 1 Ion 2005.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapur

  25. Cyhoeddwyd

    Turbulence-modulated clay-laden flow over flat beds, ripple and dunes.

    Baas, J. H. & Best, J. L., 1 Ion 2005.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapur

  26. 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 gynhadleddPapur

  27. 2004
  28. Cyhoeddwyd

    Deposits of depletive high-density turbidity currents: a flume analogue of bed geometry, structure and texture.

    Baas, J. H., Van Kesteren, W. & Postma, G., 1 Hyd 2004, Yn: Sedimentology. 51, 5, t. 1053-1088

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  29. Cyhoeddwyd

    Conditions for formation of massive turbiditic sandstones by primary depositional processes.

    Baas, J. H., 1 Ebr 2004, Yn: Sedimentary Geology. 166, 3-4, t. 292-310

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  30. Cyhoeddwyd

    Earth Science Editorial.

    Baas, J. H., 1 Chwef 2004, Yn: Annals of the Marie Curie Fellowships. 3, t. 42

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  31. Cyhoeddwyd
  32. Cyhoeddwyd

    Confined Turbidite Systems, by S.A. Lomas & P. Joseph

    Baas, J. H., 1 Ion 2004, Unknown.

    Allbwn ymchwil: Cyfraniad arallCyfraniad Arall

  33. 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 gynhadleddPapur

  34. 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 gynhadleddPapur

  35. 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 gynhadleddPapur

  36. Cyhoeddwyd

    Turbulence modulation behind ripples and dunes in clay-laden currents.

    Baas, J. H. & Best, J. L., 1 Ion 2004.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapur

  37. 2003
  38. Cyhoeddwyd

    Spatio-temporal evolution of velocity structure, concentration and grainsize stratification within experimental particulate gravity currents.

    McCaffrey, W. D., Choux, C. M., Baas, J. H. & Haughton, P. D., 1 Meh 2003, Yn: Marine and Petroleum Geology. 20, 6-8, t. 851-860

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  39. Cyhoeddwyd

    Fine Sediment Dynamics in the Marine Environment, by J.C. Winterwerp & C. Kranenberg

    Baas, J. H. & Felix, M., 1 Ion 2003, Unknown.

    Allbwn ymchwil: Cyfraniad arallCyfraniad Arall

  40. Cyhoeddwyd

    Looking inside turbidity currents: the effects of spatial and temporal changes in velocity, concentration and grain size on depositional properties.

    Baas, J. H., McCaffrey, W. D., Choux, C. & Haughton, P. D., 1 Ion 2003.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapur

  41. Cyhoeddwyd

    Muddy Coasts of the World: Processes, Deposits and Function, by T. Healy, Y. Wang & J.-A. Healy

    Baas, J. H., 1 Ion 2003, Unknown.

    Allbwn ymchwil: Cyfraniad arallCyfraniad Arall

  42. Cyhoeddwyd

    Ripple, Ripple Mark, Ripple Structure.

    Baas, J. H. & Middleton, G. V. (gol.), 1 Ion 2003, Encyclopedia of Sediments and Sedimentary Rocks. 2003 gol. Kluwer Academic Publishers, t. 565-567

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion CynhadleddPennod

  43. 2002
  44. Cyhoeddwyd

    Earth Science Editorial.

    Baas, J. H., 1 Gorff 2002, Yn: Annals of the Marie Curie Fellowships. 2, t. 34

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  45. Cyhoeddwyd

    Experimental constraints on shear mixing rates and processes: implications for the dilution of submarine debris flows

    Talling, P. J., Peakall, J., Sparks, R. S., O'Cofaigh, C., Dowdeswell, J. A., Felix, M., Wynn, R. B., Baas, J. H., Hogg, A. J., Masson, D. G., Taylor, J. & Weaver, P. P., 1 Ion 2002, Glacier-Influenced Sedimentation on High-Latitude Continental Margins. 2002 gol. Geological Society Publishing House, t. 89-104

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion CynhadleddPennod

  46. Cyhoeddwyd
  47. Cyhoeddwyd

    Turbulence modulation in clay-rich sediment-laden flows and some implications for sediment deposition.

    Baas, J. H. & Best, J. L., 1 Ion 2002, Yn: Journal of Sedimentary Research. 72, 3, t. 336-340

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  48. 2001
  49. Cyhoeddwyd

    Can sedimentological flows with small amounts of clay particles form massive sandstone beds?

    Baas, J. H. & Best, J. L., 1 Ion 2001.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapur

  50. Cyhoeddwyd

    Clast-rich debrite and slurry intervals sandwiched within co-genetic turbiditic sandstone: origin, lateral extent and baffle potential.

    Talling, P., Amy, L., McCaffrey, B., Baas, J. H., Peakall, J., Stanbrook, D., Clark, J., Wynn, R., Gee, M. & Masson, D., 1 Ion 2001.

    Allbwn ymchwil: Cyfraniad at gynhadleddPapur

  51. Cyhoeddwyd
  52. 2000
  53. Cyhoeddwyd

    Duration of deposition from decelerating high-density turbidity currents.

    Baas, J. H., Van Dam, R. L. & Storms, J. E., 1 Hyd 2000, Yn: Sedimentary Geology. 136, 1-2, t. 71-88

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  54. Cyhoeddwyd

    Ripple formation induced by biogenic mounds – Comment

    Baas, J. H. & Best, J. L., 15 Awst 2000, Yn: Marine Geology. 168, 1-4, t. 145-151

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  55. Cyhoeddwyd

    EZ-ROSE: a computer program for equal-area circular histograms and statistical analysis of two-dimensional vectorial data.

    Baas, J. H., 1 Maw 2000, Yn: Computers and Geosciences. 26, 2, t. 153-166

    Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

  56. Cyhoeddwyd
  57. Cyhoeddwyd

    Experimental Research on Hydraulics and Depositional Mechanisms of High-Density Turbidity Currents.

    Baas, J. H., 1 Ion 2000, 2000 gol. Unknown.

    Allbwn ymchwil: Llyfr/AdroddiadAdroddiad Comisiwn