Tracking fluorescent and ferrimagnetic sediment tracers on an energetic ebb-tidal delta to monitor grain size-selective dispersal
نویسندگان
چکیده
Sediment tracer studies use uniquely identifiable particles to track the pathways and fate of individual sand or silt grains in marine environments. These techniques are best applied assess connectivity between potential sediment sources sinks, such as a nourishment an ecologically sensitive area. Significant challenges exist when applying tracing further understanding systems with complicated hydrodynamic, sediment, morphological regimes. Ebb-tidal deltas highly dynamic coastal environments shaped by complex interplay waves tides, but have been under-explored. In this study, we dual signature (fluorescent ferrimagnetic) tracers simulate dispersal dredged placed on energetic ebb-tidal delta (at Ameland Inlet, Netherlands). After deployment, grain size sorting behaviour were monitored via collection seabed grab samples magnetic sampling transported suspension. The content within collected put context hydrodynamic conditions observed during study period. Here show that tracers, addition novel recovery analysis techniques, enables be even settings delta. Our observations suspension significantly finer than accumulated seabed. suggest preferential transport function is key process shaping morphology thus governing nourishments there. findings approach used here provide valuable tools for assessing baseline today, planning interventions which may necessary future responses climate change. Lessons learned from application provided assist researchers practitioners technique • Large-scale conducted Despite presented setting, was recovered. Tracer processing enhanced its fluorescence ferrimagnetism. Tracking recovered essential interpretation. Tracers prove useful tool monitoring.
منابع مشابه
Deposition and Long-Shore Transport of Dredge Spoils to Nourish Beaches: Impacts on Benthic Infauna of an Ebb-Tidal Delta
BISHOP, M.J.; PETERSON, C.H.; SUMMERSON, H.C.; LENIHAN, H.S., and GRABOWSKI, J.H., 2006. Deposition and long-shore transport of dredge spoils to nourish beaches: impacts on benthic infauna of an ebb-tidal delta. Journal of Coastal Research, 22(3), 530–546. West Palm Beach (Florida), ISSN 0749-0208. Dredged materials from maintenance and deepening of inlets on coastal barriers are typically tran...
متن کاملGrain size distribution effects on phosphate sorption by fluvial sediment: implications for modelling sediment- phosphate transport
A sensitivity analysis was performed on a sediment-phosphate transport model by determining the phosphate sorption characteristics of separated size fractions and prepared size distributions of fine-grained ( < 64 jum) river sediment typically transported in two southern Ontario streams. The Langmuir equation was used to quantify phosphate release from the sediment. Results of the study indicat...
متن کاملReservoir Model of Ebb - Tidal Shoal Evolution and Sand Bypassing
A mathematical model is presented for calculating the change in volume and sand-bypassing rate at ebb-tidal shoals. Conceptually and mathematically, the ebb-tidal shoal is distinguished from bypassing bars that emerge from it and from attachment bars where the bypassing bars merge with the beach. The volumes and bypassing rates of these morphologic entities are calculated by analogy to a reserv...
متن کاملA Visual Basic Program to Generate Sediment Grain-Size Statistics and to Extrapolate Particle Distributions
Measures that describe and summarize sediment grain-size distributions are important to geologists because of the large amount of information contained in textural data sets. Statistical methods are usually employed to simplify the necessary comparisons among samples and quantify the observed differences. The two statistical methods most commonly used by sedimentologists to describe particle di...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Ocean & Coastal Management
سال: 2021
ISSN: ['0964-5691', '1873-524X']
DOI: https://doi.org/10.1016/j.ocecoaman.2021.105835