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Assessment of sediment trap collection efficiency
Author(s) -
Hargrave Barry T.,
Burns Noel M.
Publication year - 1979
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.1979.24.6.1124
Subject(s) - sedimentation , trap (plumbing) , turbulence , environmental science , deposition (geology) , water column , sediment trap , sediment , aspect ratio (aeronautics) , particle size , hydrology (agriculture) , meteorology , geology , materials science , environmental engineering , oceanography , physics , geomorphology , geotechnical engineering , paleontology , composite material
Theoretical considerations of the effects of turbulence around and within sedimentation traps show that the aspect ratio (height:mouth opening) of the traps is important in determining particle retention. Collection efficiency and comparative measures of deposition per unit area in traps of various design were independent of this ratio in cairn water, but an asymptotic relation of increased collection efficiency with higher aspect ratio existed under nonstagnant conditions. Turbulent mixing in a water column could be assessed by comparisons of deposition in collectors exposed simultaneously but having different aspect ratios.