Outputs (7)

The influence of moisture on ash strength: implications for understanding volcanic stratigraphy (2025)
Journal Article
Walding, N., Williams, R., Dowey, N., Rowley, P., Thomas, M., Osman, S., Johnson, M., & Parsons, D. R. (2025). The influence of moisture on ash strength: implications for understanding volcanic stratigraphy. Bulletin of volcanology, 87, Article 39. https://doi.org/10.1007/s00445-025-01821-4

Ash layers within extensive pyroclastic density current (PDC) deposits can be important in understanding the evolution of explosive eruptions. If interpreted as ashfall deposits, they may be used to identify hiatus episodes and determine how many pyr... Read More about The influence of moisture on ash strength: implications for understanding volcanic stratigraphy.

On the turbulence dynamics induced by a surrogate seagrass canopy (2022)
Journal Article
Houseago, R. C., Hong, L., Cheng, S., Best, J. L., Parsons, D. R., & Chamorro, L. P. (2022). On the turbulence dynamics induced by a surrogate seagrass canopy. Journal of Fluid Mechanics, 934, Article A17. https://doi.org/10.1017/jfm.2021.1142

The distinct turbulence dynamics and transport modulated by a common seagrass species were investigated experimentally using a flexible surrogate canopy in a refractive-index-matching environment that enabled full optical access. The surrogate seagra... Read More about On the turbulence dynamics induced by a surrogate seagrass canopy.

Knickpoints and crescentic bedform interactions in submarine channels (2021)
Journal Article
Chen, Y., Parsons, D. R., Simmons, S. M., Williams, R., Cartigny, M. J. B., Hughes Clarke, J. E., Stacey, C. D., Hage, S., Talling, P. J., Azpiroz‐Zabala, M., Clare, M. A., Hizzett, J. L., Heijnen, M. S., Hunt, J. E., Lintern, D. G., Sumner, E. J., Vellinga, A. J., & Vendettuoli, D. (2021). Knickpoints and crescentic bedform interactions in submarine channels. Sedimentology, 68(4), 1358-1377. https://doi.org/10.1111/sed.12886

Submarine channels deliver globally important volumes of sediments, nutrients, contaminants and organic carbon into the deep sea. Knickpoints are significant topographic features found within numerous submarine channels, which most likely play an imp... Read More about Knickpoints and crescentic bedform interactions in submarine channels.

Author Correction: Rapidly-migrating and internally-generated knickpoints can control submarine channel evolution (Nature Communications, (2020), 11, 1, (3129), 10.1038/s41467-020-16861-x) (2020)
Journal Article
Heijnen, M. S., Clare, M. A., Cartigny, M. J., Talling, P. J., Hage, S., Lintern, D. G., Stacey, C., Parsons, D. R., Simmons, S. M., Chen, Y., Sumner, E. J., Dix, J. K., & Clarke, J. E. (2020). Author Correction: Rapidly-migrating and internally-generated knickpoints can control submarine channel evolution (Nature Communications, (2020), 11, 1, (3129), 10.1038/s41467-020-16861-x). Nature communications, 11(1), Article 4425. https://doi.org/10.1038/s41467-020-18394-9

© 2020, The Author(s). The original version of this Article contained an error in the labelling of the cross-section in Fig. 2g and the vertical axis in Fig. 2b. This has been corrected in both the PDF and HTML versions of the Article.

A bedform phase diagram for dense granular currents (2020)
Journal Article
Smith, G., Rowley, P., Williams, R., Giordano, G., Trolese, M., Silleni, A., Parsons, D. R., & Capon, S. (2020). A bedform phase diagram for dense granular currents. Nature communications, 11(1), Article 2873. https://doi.org/10.1038/s41467-020-16657-z

Pyroclastic density currents (PDCs) are a life-threatening volcanic hazard. Our understanding and hazard assessments of these flows rely on interpretations of their deposits. The occurrence of stratified layers, cross-stratification, and bedforms in... Read More about A bedform phase diagram for dense granular currents.

Direct monitoring reveals initiation of turbidity currents from extremely dilute river plumes (2019)
Journal Article
Hage, S., Cartigny, M. J. B., Sumner, E. J., Clare, M. A., Hughes Clarke, J., Talling, P. J., Lintern, D. G., Simmons, S. M., Silva Jacinto, R., Vellinga, A. J., Allin, J. R., Azpiroz-Zabala, M., Gales, J. A., Hizzett, J. L., Hunt, J. E., Mozzato, A., Parsons, D. R., Pope, E. L., Stacey, C. D., Symons, W. O., …Watts, C. (2019). Direct monitoring reveals initiation of turbidity currents from extremely dilute river plumes. Geophysical research letters, 46(20), 11310-11320. https://doi.org/10.1029/2019gl084526

©2019. The Authors. Rivers (on land) and turbidity currents (in the ocean) are the most important sediment transport processes on Earth. Yet how rivers generate turbidity currents as they enter the coastal ocean remains poorly understood. The current... Read More about Direct monitoring reveals initiation of turbidity currents from extremely dilute river plumes.

Investigation of variable aeration of monodisperse mixtures: implications for pyroclastic density currents (2018)
Journal Article
Smith, G. M., Williams, R., Rowley, P., & Parsons, D. R. (2018). Investigation of variable aeration of monodisperse mixtures: implications for pyroclastic density currents. Bulletin of volcanology, 80(8), Article 67. https://doi.org/10.1007/s00445-018-1241-1

The high mobility of dense pyroclastic density currents (PDCs) is commonly attributed to high gas pore pressures. However, the influence of spatial and temporal variations in pore pressure within PDCs has yet to be investigated. Theory suggests that... Read More about Investigation of variable aeration of monodisperse mixtures: implications for pyroclastic density currents.