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All Outputs (5)

Interactions between sediment microbial ecology and physical dynamics drive heterogeneity in contextually similar depositional systems (2020)
Journal Article
Hope, J. A., Malarkey, J., Baas, J. H., Peakall, J., Parsons, D. R., Manning, A. J., …Paterson, D. M. (2020). Interactions between sediment microbial ecology and physical dynamics drive heterogeneity in contextually similar depositional systems. Limnology and Oceanography, 65(10), 2403-2419. https://doi.org/10.1002/lno.11461

This study focuses on the interactions between sediment stability and biological and physical variables that influence the erodibility across different habitats. Sampling at short-term temporal scales illustrated the persistence of the microphytobent... Read More about Interactions between sediment microbial ecology and physical dynamics drive heterogeneity in contextually similar depositional systems.

Bedform migration in a mixed sand and cohesive clay intertidal environment and implications for bed material transport predictions (2018)
Journal Article
Lichtman, I. D., Baas, J. H., Amoudry, L. O., Thorne, P. D., Malarkey, J., Hope, J. A., …Ye, L. (2018). Bedform migration in a mixed sand and cohesive clay intertidal environment and implications for bed material transport predictions. Geomorphology, 315, 17-32. https://doi.org/10.1016/j.geomorph.2018.04.016

Many coastal and estuarine environments are dominated by mixtures of non-cohesive sand and cohesive mud. The migration rate of bedforms, such as ripples and dunes, in these environments is important in determining bed material transport rates to info... Read More about Bedform migration in a mixed sand and cohesive clay intertidal environment and implications for bed material transport predictions.

The role of biophysical cohesion on subaqueous bed form size: COHESION IN SUBAQUEOUS BED FORMS (2016)
Journal Article
Parsons, D. R., Schindler, R. J., Hope, J. A., Malarkey, J., Baas, J. H., Peakall, J., …Thorne, P. D. (2016). The role of biophysical cohesion on subaqueous bed form size: COHESION IN SUBAQUEOUS BED FORMS. Geophysical research letters, 43(4), 1566-1573. https://doi.org/10.1002/2016gl067667

Biologically active, fine-grained sediment forms abundant sedimentary deposits on Earth's surface, and mixed mud-sand dominates many coasts, deltas, and estuaries. Our predictions of sediment transport and bed roughness in these environments presentl... Read More about The role of biophysical cohesion on subaqueous bed form size: COHESION IN SUBAQUEOUS BED FORMS.

Sticky stuff: redefining bedform prediction in modern and ancient environments (2015)
Journal Article
Schindler, R. J., Parsons, D. R., Ye, L., Hope, J. A., Baas, J. H., Peakall, J., …Bass, S. J. (2015). Sticky stuff: redefining bedform prediction in modern and ancient environments. Geology, 43(5), 399-402. https://doi.org/10.1130/g36262.1

The dimensions and dynamics of subaqueous bedforms are well known for cohesionless sediments. However, the effect of physical cohesion imparted by cohesive clay within mixed sand-mud substrates has not been examined, despite its recognized influence... Read More about Sticky stuff: redefining bedform prediction in modern and ancient environments.

The pervasive role of biological cohesion in bedform development (2015)
Journal Article
Malarkey, J., Baas, J. H., Hope, J. A., Aspden, R. J., Parsons, D. R., Peakall, J., …Thorne, P. D. (2015). The pervasive role of biological cohesion in bedform development. Nature communications, 6(1), Article ARTN 6257. https://doi.org/10.1038/ncomms7257

Sediment fluxes in aquatic environments are crucially dependent on bedform dynamics. However, sediment-flux predictions rely almost completely on clean-sand studies, despite most environments being composed of mixtures of non-cohesive sands, physical... Read More about The pervasive role of biological cohesion in bedform development.