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Research Output 1986 2018

2018

Hydrodynamic modelling of tidal-fluvial flows in a large river estuary

Sandbach, S. D., Nicholas, A. P., Ashworth, P., Best, J. L., Keevil, C., Parsons, D. R., Prokocki, E. W. & Simpson, C. J., 27 Jun 2018, In : Estuarine, Coastal and Shelf Science. 212, p. 176-188

Research output: Contribution to journalArticleResearchpeer-review

Open Access
File
hydrodynamics
estuary
sediment transport
river
modeling

Morphology and spacing of river meander scrolls

Strick, R. J. P., Ashworth, P., Awcock, G. & Lewin, J., 9 Mar 2018, In : Geomorphology. 310, p. 57-68 12 p.

Research output: Contribution to journalArticleResearchpeer-review

Open Access
File
meander
spacing
river
floodplain
geometry

Quantification of bedform dynamics and bedload sediment flux in sandy braided rivers from airborne and satellite imagery

Strick, R. J. P., Ashworth, P., Sambrook Smith, G. H., Nicholas, A., Best, J. L., Lane, S., Parsons, D., Simpson, C. J., Unsworth, C. & Dale, J., 3 Dec 2018, In : Earth Surface Processes and Landforms. 20 p.

Research output: Contribution to journalArticleResearchpeer-review

Open Access
File
airborne sensing
braided river
bedform
bedload
satellite imagery

The adaptation of dunes to changes in river flow

Reesink, A., Parsons, D., Ashworth, P., Best, J., Hardy, R., Murphy, B., McLelland, S. & Unsworth, C., 5 Sep 2018, In : Earth-Science Reviews. 185, p. 1065-1087

Research output: Contribution to journalArticleResearchpeer-review

Open Access
File
river flow
dune
sediment
flow velocity
kinematics

The impact of non-equilibrium flow on the structure of turbulence over river dunes

Unsworth, C., Parsons, D., Hardy, R., Reesink, A., Best, J., Ashworth, P. & Keevil, G., 24 Aug 2018, In : Water Resources Research.

Research output: Contribution to journalArticleResearchpeer-review

Open Access
File
dune
turbulence
river
turbulent flow
flow field
2017

International Benchmarking Review of UK Physical Geography

Thomas, D., Ashworth, P., Nield, J. & Souch, C., 1 Aug 2017, 52 p.

Research output: Book/ReportCommissioned reportResearch

Open Access
File
benchmarking
geography
overseas
university
science
2016

Spatio-temporal evolution of alluvial sand beds under unsteady flow

Ockelford, A., Parsons, D., Hardy, R., Ashworth, P., Best, J. & Hu, H., 12 Dec 2016, p. 0-0. 1 p.

Research output: Contribution to conferenceAbstractResearch

Open Access
File
unsteady flow
temporal evolution
hydrograph
bedform
sand

Spillage sedimentation on large river floodplains

Lewin, J., Ashworth, P. & Strick, R. J. P., 22 Jul 2016, In : Earth Surface Processes and Landforms. 42, 2, p. 290-305 16 p.

Research output: Contribution to journalArticleResearchpeer-review

Open Access
File
floodplain
sedimentation
river
relief
spillage
2015

Exploring the relationship between hydrograph characteristics and the time evolution of sand bed morphology

Ockelford, A., Parsons, D., Hardy, R., Ashworth, P. & Best, J. L., 14 Dec 2015, p. 0-0. 1 p.

Research output: Contribution to conferenceAbstractResearch

Open Access
File
bedform
hydrograph
steady flow
sand
suspended sediment

Fluvial-Tidal Sedimentology

Ashworth, P. (ed.), Best, J. L. (ed.) & Parsons, D. R. (ed.), 23 Nov 2015, Amsterdam: Elsevier. 657 p.

Research output: Book/ReportBook - editedResearch

sedimentology
outcrop
resource
book

Mid to late Holocene geomorphological and sedimentological evolution of the fluvial-tidal zone: Lower Columbia River, WA/OR, USA

Prokocki, E. W., Best, J. L., Ashworth, P., Parsons, D. R., Sambrook Smith, G. H., Nicholas, A. P., Simpson, C. J., Wang, H., Sandbach, S. & Keevil, C., 23 Nov 2015, Fluvial-Tidal Sedimentology. Ashworth, P., Best, J. L. & Parsons, D. R. (eds.). Amsterdam: Elsevier, p. 193-226 34 p. (Developments in Sedimentology Series).

Research output: Chapter in Book/Conference proceeding with ISSN or ISBNChapterResearch

The role of discharge variability in determining alluvial stratigraphy

Nicholas, A. P., Sambrook-Smith, G. H., Amsler, M. L., Ashworth, P., Best, J. L., Hardy, R. J., Lane, S. N., Orfeo, O., Parsons, D. R., Reesink, A. J. H., Sandbach, S. D., Simpson, C. J. & Szupiany, R. N., 11 Nov 2015, In : Geology. 44, 1, p. 3-6 4 p.

Research output: Contribution to journalArticleResearchpeer-review

Open Access
File
stratigraphy
river
paleocurrent
morphodynamics
ground penetrating radar
2014

Modelling time dependent flow fields over three dimensional dunes

Hardy, R. J., Marjoribanks, T. I., Parsons, D., Reesink, A., Murphy, B., Ashworth, P. & Best, J. L., 2 Oct 2014, Proceedings of the IAHR River Flow 2014 Conference. Lausanne: CRC Press, Taylor & Francis Group, p. 1045-1052 8 p.

Research output: Chapter in Book/Conference proceeding with ISSN or ISBNConference contribution with ISSN or ISBNResearchpeer-review

Open Access
File
flow field
dune
modeling
bedform
large eddy simulation

The negative relief of large river floodplains

Lewin, J. & Ashworth, P., 1 Feb 2014, In : Earth-Science Reviews. 129, p. 1-23 23 p.

Research output: Contribution to journalArticleResearchpeer-review

Open Access
File
floodplain
relief
river
connectivity
wetland
2013

Application of a roughness-length representation to parameterize energy-loss in 3D numerical simulations of large rivers

Sandbach, S. D., Lane, S. N., Hardy, R. J., Amsler, M. L., Ashworth, P., Best, J. L., Orfeo, O., Parsons, D. R., Reesink, A. J. H., Sambrook-Smith, G. H. & Szupiany, R. N., 1 Jan 2013, In : Water Resources Research. 48, 12

Research output: Contribution to journalArticleResearchpeer-review

roughness
river
simulation
energy
bedform

Communicating geomorphology: global challenges for the twenty-first century

Gregory, K., Lane, S. N., Lewin, J., Ashworth, P., Downs, P. W., Kirkby, M. J. & Viles, H. A., 1 Aug 2013, In : Earth Surface Processes and Landforms. 39, 4, p. 476-486 11 p.

Research output: Contribution to journalArticleResearchpeer-review

twenty-first century
academy
impact research
communication
society

Defining large river channel patterns: alluvial exchange and plurality

Lewin, J. & Ashworth, P., 1 Jan 2013, In : Geomorphology. 215, p. 83-98 16 p.

Research output: Contribution to journalArticleResearchpeer-review

Open Access
File
river channel
river
sediment
meander
hydraulics

Deposits of the sandy braided South Saskatchewan River: implications for the use of modern analogs in reconstructing channel dimensions in reservoir characterization

Lunt, I. A., Sambrook-Smith, G. H., Best, J. L., Ashworth, P., Lane, S. N. & Simpson, C. J., 1 Apr 2013, In : Bulletin of the American Association of Petroleum Geologists. 97, 4, p. 553-576 24 p.

Research output: Contribution to journalArticleResearchpeer-review

Open Access
File
reservoir characterization
dune
bedform
river
erosion

Numerical simulation of bar and island morphodynamics in anabranching mega-rivers

Nicholas, A. P., Ashworth, P., Sambrook-Smith, G. H. & Sandbach, S. D., 1 Dec 2013, In : Journal of Geophysical Research: Earth Surface. 118, 4, p. 2019-2044 26 p.

Research output: Contribution to journalArticleResearchpeer-review

Open Access
File
morphodynamics
river
simulation
sand
sediment transport

Quantification of the relationship between surface morphodynamics and subsurface sedimentological product in sandy braided rivers

Parker, N. O., Sambrook-Smith, G. H., Ashworth, P., Best, J. L., Lane, S. N., Lunt, I. A., Simpson, C. J. & Thomas, R. E., 1 Apr 2013, In : Sedimentology. 60, 3, p. 820-839 20 p.

Research output: Contribution to journalArticleResearchpeer-review

File
braided river
morphodynamics
dune
ground penetrating radar
digital elevation model

Scales and causes of heterogeneity in bars in a large multi-channel river: Río Paraná, Argentina

Reesink, A. J. H., Ashworth, P., Sambrook-Smith, G. H., Best, J. L., Parsons, D. R., Amsler, M. L., Hardy, R. J., Lane, S. N., Nicholas, A. P., Orfeo, O., Sandbach, S. D., Simpson, C. J. & Szupiany, R. N., 1 Jan 2013, In : Sedimentology. 61, 4, p. 1055-1085 31 p.

Research output: Contribution to journalArticleResearchpeer-review

File
river channel
river
ripple
fine grained sediment
confluence
2012

How do big rivers come to be different?

Ashworth, P. & Lewin, J., 2012, In : Earth-Science Reviews. 114, 1-2, p. 84-107 24 p.

Research output: Contribution to journalArticleResearchpeer-review

File
river
floodplain
sediment
tributary
sedimentation

Modelling hydrodynamics in the Rio Paraná, Argentina: an evaluation and inter-comparison of reduced-complexity and physics-based models applied to a large sand-bed river

Nicholas, A. P., Sandbach, S. D., Ashworth, P., Amsler, M. L., Best, J. L., Hardy, R. J., Lane, S. N., Orfeo, O., Parsons, D. R., Reesink, A. J. H., Sambrook-Smith, G. H. & Szupiany, R. N., 1 Jan 2012, In : Geomorphology. 169-170, p. 192-211 20 p.

Research output: Contribution to journalArticleResearchpeer-review

river bed
physics
hydrodynamics
sand
modeling

Tributary, distributive and other fluvial patterns; what really represents the norm in the continental rock record (invited review)

Fielding, C. R., Ashworth, P., Best, J. L., Prokocki, E. W. & Sambrook-Smith, G. H., 1 Jan 2012, In : Sedimentary Geology. 261-262, p. 15-32 18 p.

Research output: Contribution to journalArticleResearchpeer-review

tributary
geological record
rock
river
norm
2011

Evolution and sedimentology of a channel fill in the sandy braided South Saskatchewan River and its comparison to the deposits of an adjacent compound bar

Ashworth, P., Sambrook-Smith, G. H., Best, J. L., Bridge, J. S., Lane, S. N., Lunt, I. A., Reesink, A. J. H., Simpson, C. J. & Thomas, R. E., 1 Dec 2011, In : Sedimentology. 58, 7, p. 1860-1883 24 p.

Research output: Contribution to journalArticleResearchpeer-review

sedimentology
fill
river
braided river
comparison
2010

Can we distinguish flood frequency and magnitude in the sedimentological record of rivers?

Sambrook Smith, G., Best, J. L., Ashworth, P., Lane, S. N., Parker, N. O., Lunt, I. A., Thomas, R. E. & Simpson, C. J., 2010, In : Geology. 38, 7, p. 579-582 4 p.

Research output: Contribution to journalArticleResearchpeer-review

flood frequency
river
alluvial deposit
gradualism
overbank flow

Fluvial form in modern continental sedimentary basins: distributive fluvial systems: comment

Sambrook Smith, G. H., Best, J. L., Ashworth, P., Fielding, C. R., Goodbred, S. L. & Prokocki, E. W., Dec 2010, In : Geology. 38, 12, p. 39-42 4 p.

Research output: Contribution to journalArticleResearchpeer-review

Process-product relationships in a large multi-channel river: the Rio Paraná, Argentina

Parsons, D. R., Amsler, M. L., Szupiany, R. N., Ashworth, P., Best, J. L., Hardy, R. J., Lane, S. N., Nicholas, A. P., Orfeo, O., Sambrook-Smith, G. H., Reesink, A. J. H. & Sandbach, S. D., 1 Sep 2010, Proceedings of the 6th IAHR Symposium on River, Coastal and Estuarine Morphodynamics: RCEM 2009.. Vionnet, C. A., García, E. M., Latrubesse, E. M. & Perillo, G. M. E. (eds.). Universidad Nacional del Litoral, Santa Fe, Argentina: Taylor & Francis, Vol. 1. p. 51-56 6 p.

Research output: Chapter in Book/Conference proceeding with ISSN or ISBNChapterResearchpeer-review

river channel
sedimentology
scale effect
morphodynamics
river system

Quantification of braided river channel change using archival digital image analysis

Lane, S. N., Widdison, P. E., Thomas, R. E., Ashworth, P., Best, J. L., Lunt, I. A., Sambrook-Smith, G. H. & Simpson, C. J., 2010, In : Earth Surface Processes and Landforms. 35, 8, p. 971-985 15 p.

Research output: Contribution to journalArticleResearchpeer-review

channel change
braided river
digital image
river channel
image analysis

Three-dimensional modelling of a very large river: the Rio Paraná

Sandbach, S. D., Hardy, R. J., Lane, S. N., Parsons, D. R., Best, J. L., Ashworth, P., Reesink, A. J. H., Amsler, M. L., Szupiany, R. N., Nicholas, A. P., Orfeo, O. & Sambrook-Smith, G. H., 1 Sep 2010, Proceedings of the IAHR River Flow Conference. Dittrich, A., Koll, K., Aberle, J. & Geisenhainer, P. (eds.). Germany: Bundesanstalt fuer Wasserbau, Vol. 1. p. 409-417 9 p.

Research output: Chapter in Book/Conference proceeding with ISSN or ISBNChapterResearchpeer-review

three-dimensional modeling
river
computational fluid dynamics
boundary condition
topography
2009

The sedimentology and alluvial architecture of a large braid bar, Rio Paraná, Argentina

Sambrook-Smith, G. H., Ashworth, P., Best, J. L., Lunt, I. A., Orfeo, O. & Parsons, D. R., 1 Jan 2009, In : Journal of Sedimentary Research. 79, 7-8, p. 629-642 14 p.

Research output: Contribution to journalArticleResearchpeer-review

sedimentology
ground penetrating radar
river
dune
reworking
2008

Sedimentological impact of a high magnitude, low-frequency flood in a braided river revealed from sequential GPR surveys

Parker, N. O., Sambrook-Smith, G. H., Ashworth, P., Best, J. L., Bridge, J. S., Lane, S. N., Lunt, I. A. & Simpson, C. J., 1 Jan 2008, Proceedings of the 12th International Conference on Ground Penetrating Radar. UK, p. 0-0 1 p.

Research output: Chapter in Book/Conference proceeding with ISSN or ISBNConference contribution with ISSN or ISBNResearchpeer-review

File
braided river
flood frequency
ground penetrating radar
aerial photography
river
2007

Meander bend evolution, alluvial architecture, and the role of cohesion in sinuous river channels, a flume study

Peakall, J., Ashworth, P. & Best, J. L., 2007, In : Journal of Sedimentary Research. 77, 3, p. 197-212 16 p.

Research output: Contribution to journalArticleResearchpeer-review

meander
river channel
cohesion
geometry
accretion

The Brahmaputra-Jamuna River, Bangladesh

Best, J. L., Ashworth, P., Sarker, M. H. & Roden, J. E., 1 Jan 2007, Large rivers: Geomorphology and Management. Gupta, A. (ed.). Chichester, UK: Wiley & Sons Ltd, p. 395-430 36 p.

Research output: Chapter in Book/Conference proceeding with ISSN or ISBNChapterResearchpeer-review

river
floodplain
flooding
infrastructure
sediment

The relationship between channel avulsion, flow occupancy and aggradation in braided rivers: insights from an experimental model

Ashworth, P., Best, J. L. & Jones, M. A., 2007, In : Sedimentology. 54, 3, p. 497-513 17 p.

Research output: Contribution to journalArticleResearchpeer-review

avulsion
braided river
aggradation
sediment
basin
2006

Bar-top hollows: a new element in the architecture of sandy braided rivers

Best, J. L., Ashworth, P., Woodward, J., Sambrook-Smith, G. H. & Simpson, C. J., 1 Aug 2006, In : Sedimentary Geology. 190, p. 241-255 15 p.

Research output: Contribution to journalArticleResearchpeer-review

braided river
accretion
depositional sequence
ground penetrating radar
scour

Sedimentological impact of a large flood revealed using sequential GPR surveys

Sambrook Smith, G. H., Lunt, I., Ashworth, P., Best, J., Bridge, J., Lane, S. & Simpson, C., 2006, Proceedings of the 11th International Conference on Ground Penetrating Radar.

Research output: Chapter in Book/Conference proceeding with ISSN or ISBNConference contribution with ISSN or ISBNResearchpeer-review

The sedimentology and alluvial architecture of the sandy braided South Saskatchewan River, Canada

Sambrook Smith, G. H., Ashworth, P., Best, J. L., Woodward, J. & Simpson, C. J., 2006, In : Sedimentology. 53, 2, p. 413-434 22 p.

Research output: Contribution to journalArticleResearchpeer-review

sedimentology
river
ground penetrating radar
dune
braided river
2005

The morphology and facies of sandy braided rivers: some considerations of scale invariance

Sambrook Smith, G. H., Ashworth, P., Best, J. L., Woodward, J. & Simpson, C. J., 2005, Fluvial sedimentology. Blum, M., Marriott, S. & Leclair, S. (eds.). Oxford, UK: Blackwell Publishing, Vol. VII. p. 145-158 14 p. (International Association of Sedimentologists).

Research output: Chapter in Book/Conference proceeding with ISSN or ISBNChapterResearch

braided river
river
stratification
ground penetrating radar
confluence
2004

Initiation of motion

Ashworth, P., 2004, Encyclopedia of Geomorphology. Goudie, A. S. (ed.). London: Routledge, p. 562-563 2 p.

Research output: Chapter in Book/Conference proceeding with ISSN or ISBNChapterResearchpeer-review

The relationship between sediment supply and avulsion frequency in braided rivers

Ashworth, P., Best, J. L. & Jones, M., 2004, In : Geology. 32, 1, p. 21-24 4 p.

Research output: Contribution to journalArticleResearchpeer-review

avulsion
braided river
sediment
alluvial fan
sedimentation rate
2003

The use and application of GPR in sandy fluvial environments: methodological considerations

Woodward, J., Ashworth, P., Best, J. L., Sambrook Smith, G. H. & Simpson, C. J., 2003, Ground penetrating radar in sediments. Bristow, C. S. & Jol, H. M. (eds.). London: Geological Society of London, p. 127-142 16 p. (Geological Society special publication).

Research output: Chapter in Book/Conference proceeding with ISSN or ISBNChapterResearch

Three-dimensional sedimentary architecture of a large, mid-channel sand braid bar, Jamuna River, Bangladesh

Best, J. L., Ashworth, P., Bristow, C. S. & Roden, J. E., Jul 2003, In : Journal of Sedimentary Research. 73, 4, p. 516-530 15 p.

Research output: Contribution to journalArticleResearchpeer-review

sand
river
dune
accretion
stratification
2002

Computational fluid dynamics and the physical modelling of an upland urban river

Lin, M., Ashworth, P., Best, J. L., Elliott, L., Ingham, D. B. & Whitcombe, L. J., May 2002, In : Geomorphology. 44, 3-4, p. 375-391 17 p.

Research output: Contribution to journalArticleResearchpeer-review

computational fluid dynamics
secondary flow
river
modeling
flow structure

The physical scale modelling of braided alluvial architecture and estimation of subsurface permeability

Moreton, D. J., Ashworth, P. & Best, J. L., 2002, In : Basin Research. 14, 3, p. 265-287 23 p.

Research output: Contribution to journalArticleResearchpeer-review

permeability
braided river
modeling
stratigraphy
grain size
2000

Morphological evolution and dynamics of a large, sand braid-bar, Jamuna River, Bangladesh

Ashworth, P., Best, J. L., Roden, J., Bristow, C. S. & Klaassen, G. J., 1 Jan 2000, In : Sedimentology. 47, 3, p. 533-555 23 p.

Research output: Contribution to journalArticleResearchpeer-review

sand
river
dune
monsoon
peak flow

River response to lateral ground tilting: a synthesis and some implications for the modelling of alluvial architecture in extensional basins

Peakall, J., Leeder, M. R., Best, J. L. & Ashworth, P., 1 Jan 2000, In : Basin Research. 12, 3-4, p. 413-424 12 p.

Research output: Contribution to journalArticleResearchpeer-review

avulsion
tilt
basin
river
modeling

The use of GPR in developing a facies model for a large sandy braided river, Brahmaputra River, Bangladesh

Bristow, C. S., Best, J. L. & Ashworth, P., 1 Jan 2000, Proceedings of SPIE 4084, Eighth International Conference on Ground Penetrating Radar. Australia: International Society for Optical Engineering, Vol. 4084. p. 95-100 6 p. (SPIE).

Research output: Chapter in Book/Conference proceeding with ISSN or ISBNConference contribution with ISSN or ISBNResearchpeer-review

1999

Flow structure and transport of sand-grade suspended sediment around an evolving braid bar, Jamuna River, Bangladesh

McLelland, S. J., Ashworth, P., Best, J. L., Roden, J. & Klaassen, G. J., 1 Jan 1999, Fluvial Sedimentology VI. Smith, N. D. & Roger, J. (eds.). UK: Blackwells Science, p. 43-57 15 p. (Special Publication of International Association of Sedimentologists).

Research output: Chapter in Book/Conference proceeding with ISSN or ISBNChapterResearch

flow structure
suspended sediment
sand
river
dune

The influence of aggradation rate on braided alluvial architecture: field study and physical scale modelling of the Ashburton gravels, Canterbury Plains, New Zealand

Ashworth, P., Best, J. L., Peakall, J. & Lorsong, J. A., 1 Jan 1999, Fluvial Sedimentology VI. Smith, N. D. & Roger, J. (eds.). UK: Blackwell Science, p. 333-346 14 p. (Special Publication of International Association of Sedimentologists).

Research output: Chapter in Book/Conference proceeding with ISSN or ISBNChapterResearch

aggradation
gravel
geometry
modeling
outcrop