Field experimental observations of highly graded sediment plumes.
A field experiment in the waters off the south-eastern coast of Cyprus was carried out to study near-field formation of sediment plumes from dumping. Different loads of sediment were poured into calm and limpid waters one at the time from just above the sea surface. The associated plumes, gravitating towards the seafloor, were filmed simultaneously by four divers situated at different depths in the water column, and facing the plume at different angles. The processes were captured using GoPro-Hero-series cameras. The high-quality underwater footage from near-surface, mid-depth and near-bed positions gives unique insight into the dynamics of the descending plume and near-field dispersion processes, and enables good understanding of flow and sediment transport processes involved from-release-to-deposition of the load in a non-scaled environment. The high resolution images and footages are available through the link provided herein. Observations support the development of a detailed multi-fractional sediment plume model.
Technical University of Denmark, Nils Koppels Allé, 2800 Kgs. Lyngby, Denmark. Electronic address: jahj@mek.dtu.dk.
Jacob Hjelmager
JH
Jensen
DHI Water & Environment, Agern Allé 11, 2970 Hørsholm, Denmark. Electronic address: sis@dhigroup.com.
Sina
S
Saremi
Energy, Environment and Water Research Centre of the Cyprus Institute, Cyprus; Enalia Physis Environmental Research Centre, Nicosia, Cyprus. Electronic address: c.jimenez@cyi.ac.cy.
Carlos
C
Jimenez
Enalia Physis Environmental Research Centre, Nicosia, Cyprus. Electronic address: l.hadjioannou@enaliaphysis.org.cy.
Louis
L
Hadjioannou
D003535:Cyprus; D004777:Environment; D004784:Environmental Monitoring; D019015:Geologic Sediments / Q000737:chemistry*; D060086:Hydrothermal Vents; D008962:Models, Theoretical
Dumping; Environmental impacts; Field observations; Footage; Multi-fractional sediments; Poly-disperse plume