Outputs (142)

High-resolution numerical modelling of flow-vegetation interactions (2014)
Journal Article
Marjoribanks, T. I., Hardy, R. J., Lane, S. N., & Parsons, D. R. (2014). High-resolution numerical modelling of flow-vegetation interactions. Journal of Hydraulic Research, 52(6), 775-793. https://doi.org/10.1080/00221686.2014.948502

In this paper, we present and apply a new three-dimensional model for the prediction of canopy-flow and turbulence dynamics in open-channel flow. The approach uses a dynamic immersed boundary technique that is coupled in a sequentially staggered mann... Read More about High-resolution numerical modelling of flow-vegetation interactions.

Comment on “A simple model for vertical profiles of velocity and suspended sediment concentration in straight and curved submarine channels” by M. Bolla Pittaluga and J. Imran (2014)
Journal Article
Peakall, J., Darby, S. E., Dorrell, R. M., Parsons, D. R., Sumner, E. J., Wynn, R. B., Imran, J., & Bolla Pittaluga, M. (2014). Comment on “A simple model for vertical profiles of velocity and suspended sediment concentration in straight and curved submarine channels” by M. Bolla Pittaluga and J. Imran. Journal of Geophysical Research: Earth Surface, 119(9), 2070-2073. https://doi.org/10.1002/2014JF003211

This article is a comment on Bolla Pittaluga and Imran [] doi: 10.1002/2013JF002812.

Influence of junction angle on three-dimensional flow structure and bed morphology at confluent meander bends during different hydrological conditions (2014)
Journal Article
Riley, J. D., Rhoads, B. L., Parsons, D. R., & Johnson, K. K. (2015). Influence of junction angle on three-dimensional flow structure and bed morphology at confluent meander bends during different hydrological conditions. Earth surface processes and landforms : the journal of the British Geomorphological Research Group, 40(2), 252-271. https://doi.org/10.1002/esp.3624

© 2014 John Wiley & Sons, Ltd. Recent field and modeling investigations have examined the fluvial dynamics of confluent meander bends where a straight tributary channel enters a meandering river at the apex of a bend with a 90° junction angle. Past... Read More about Influence of junction angle on three-dimensional flow structure and bed morphology at confluent meander bends during different hydrological conditions.

The impact of significant input of fine sediment on benthic fauna at tributary junctions: a case study of the Bermejo-Paraguay River confluence, Argentina (2014)
Journal Article
Blettler, M. C. M., Amsler, M. L., Ezcurra de Drago, I., Espinola, L. A., Eberle, E., Paira, A., Best, J. L., Parsons, D. R., & Drago, E. E. (2015). The impact of significant input of fine sediment on benthic fauna at tributary junctions: a case study of the Bermejo-Paraguay River confluence, Argentina. Ecohydrology, 8(2), 340-352. https://doi.org/10.1002/eco.1511

This study examines the morphological features, suspended sediment inputs and hydraulic conditions within a large river in association with ecological patterns before and after a tributary confluence. In order to examine these effects, the macroinver... Read More about The impact of significant input of fine sediment on benthic fauna at tributary junctions: a case study of the Bermejo-Paraguay River confluence, Argentina.

Physical modelling of water, fauna and flora: Knowledge gaps, avenues for future research and infrastructural needs (2014)
Journal Article
Thomas, R. E., Johnson, M. F., Frostick, L. E., Parsons, D. R., Bouma, T. J., Dijkstra, J. T., Eiff, O., Gobert, S., Henry, P.-Y., Kemp, P., McLelland, S. J., Moulin, F. Y., Myrhaug, D., Neyts, A., Paul, M., Penning, W. E., Puijalon, S., Rice, S. P., Stanica, A., Tagliapietra, D., …Vousdoukas, M. I. (2014). Physical modelling of water, fauna and flora: Knowledge gaps, avenues for future research and infrastructural needs. Journal of Hydraulic Research, 52(3), 311-325. https://doi.org/10.1080/00221686.2013.876453

Physical modelling is a key tool for generating understanding of the complex interactions between aquatic organisms and hydraulics, which is important for management of aquatic environments under environmental change and our ability to exploit ecosys... Read More about Physical modelling of water, fauna and flora: Knowledge gaps, avenues for future research and infrastructural needs.

The critical role of stratification in submarine channels: Implications for channelization and long runout of flows (2014)
Journal Article
Dorrell, R. M., Darby, S. E., Peakall, J., Sumner, E. J., Parsons, D. R., & Wynn, R. B. (2014). The critical role of stratification in submarine channels: Implications for channelization and long runout of flows. Journal of Geophysical Research: Oceans, 119(4), 2620-2641. https://doi.org/10.1002/2014jc009807

Channelized submarine gravity currents travel remarkable distances, transporting sediment to the distal reaches of submarine fans. However, the mechanisms by which flows can be sustained over these distances remain enigmatic. In this paper we conside... Read More about The critical role of stratification in submarine channels: Implications for channelization and long runout of flows.

Autonomous Underwater Vehicles (AUVs): Their past, present and future contributions to the advancement of marine geoscience (2014)
Journal Article
Wynn, R. B., Huvenne, V. A., Le Bas, T. P., Murton, B. J., Connelly, D. P., Bett, B. J., Ruhl, H. A., Morris, K. J., Peakall, J., Parsons, D. R., Sumner, E. J., Darby, S. E., Dorrell, R. M., & Hunt, J. E. (2014). Autonomous Underwater Vehicles (AUVs): Their past, present and future contributions to the advancement of marine geoscience. Marine Geology, 352, 451-468. https://doi.org/10.1016/j.margeo.2014.03.012

Autonomous Underwater Vehicles (AUVs) have a wide range of applications in marine geoscience, and are increasingly being used in the scientific, military, commercial, and policy sectors. Their ability to operate autonomously of a host vessel makes th... Read More about Autonomous Underwater Vehicles (AUVs): Their past, present and future contributions to the advancement of marine geoscience.

Flow measurement around organisms and surrogates (2014)
Book Chapter
Thomas, R. E., McLelland, S. J., Eiff, O., & Parsons, D. R. (2014). Flow measurement around organisms and surrogates. In L. Frostick, R. Thomas, M. Johnson, S. Rice, & S. McLelland (Eds.), Users Guide to Ecohydraulic Modelling and Experimentation: Experience of the Ecohydraulic Research Team (PISCES) of the HYDRALAB Network (43-74). CRC Press. https://doi.org/10.1201/b16630-11

This chapter reviews methods of measuring turbulent fluid flowing through and around flora and fauna. It begins with a discussion of the relevant aspects of the nature of turbulent flows and highlights difficulties associated with their measurement.... Read More about Flow measurement around organisms and surrogates.

Scales and causes of heterogeneity in bars in a large multi-channel river: Río Paraná, Argentina (2014)
Journal Article
Reesink, A. J. H., Ashworth, P. J., 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. (2014). Scales and causes of heterogeneity in bars in a large multi-channel river: Río Paraná, Argentina. Sedimentology, 61(4), 1055-1085. https://doi.org/10.1111/sed.12092

To date, published studies of alluvial bar architecture in large rivers have been restricted mostly to case studies of individual bars and single locations. Relatively little is known about how the depositional processes and sedimentary architecture... Read More about Scales and causes of heterogeneity in bars in a large multi-channel river: Río Paraná, Argentina.

Near-bed and surface flow division patterns in experimental river bifurcations (2014)
Journal Article
Marra, W. A., Parsons, D. R., Kleinhans, M. G., Keevil, G. M., & Thomas, R. E. (2014). Near-bed and surface flow division patterns in experimental river bifurcations. Water Resources Research, 50(2), 1506-1530. https://doi.org/10.1002/2013WR014215

Understanding channel bifurcation mechanics is of great importance for predicting and managing multichannel river processes and avulsion in distributary river deltas. To date, research on river channel bifurcations has focused on factors determining... Read More about Near-bed and surface flow division patterns in experimental river bifurcations.