Size and settling velocity distributions of flocs in the Tamar estuary during a tidal cycle

Autor:	David A. Huntley, M. J. Fennessy, K.R. Dyer
Rok vydání:	1994
Předmět:	geography geography.geographical_feature_category Effective density Estuary Soil science Aquatic Science Salinity Intrusion Tidal cycle Settling Shear (geology) General Agricultural and Biological Sciences Ecology Evolution Behavior and Systematics Geology Vertical shear
Zdroj:	Netherlands Journal of Aquatic Ecology. 28:275-282
ISSN:	1573-5125 1380-8427
DOI:	10.1007/bf02334195
Popis:	Data extracted from video recordings of individual estuarine flocs near the estuary bed during the advance and retreat of the salt intrusion show changes in size and settling velocity distributions. The recordings were taken using INSSEV —IN Situ SEttling Velocity instrument. Size coupled with effective density variations due to both changes in floc structure and ambient salinity result in changes in the settling velocity during the tidal cycle. In particular, just after high water slack, the appearance of high settling velocity medium size flocs and individual particles suggest that the lower density flocs have been broken up by the intense vertical shear in the currents caused by the salt wedge intrusion. Current shear is shown to have a significant influence on floc effective density.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::36198c2fad5189c7337fe53431c4d570 https://doi.org/10.1007/bf02334195 Zobrazit plný text záznamu Full text from SpringerLink