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Reduction of sampling time in tracer studies
Author(s) -
Agunwamba Jonah C.
Publication year - 1997
Publication title -
water environment research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.356
H-Index - 73
eISSN - 1554-7531
pISSN - 1061-4303
DOI - 10.2175/106143097x125542
Subject(s) - tracer , equidistant , sampling (signal processing) , reduction (mathematics) , dispersion (optics) , channel (broadcasting) , flexibility (engineering) , variable (mathematics) , point (geometry) , mathematics , environmental science , mathematical optimization , computer science , statistics , mathematical analysis , physics , telecommunications , optics , geometry , detector , nuclear physics
An approach of evaluation of dispersion number has been suggested. Unlike the existing method, which is based on fixed‐point continuous monitoring until the tracer concentration has been reduced to negligible concentration, the new approach assumes that sampling takes place at various equidistant points along the pond or channel simultaneously or at variable times. The new approach was illustrated with laboratory data and gave results 0.9–3.3 higher than those obtained with the conventional Levenspiel and Smith fixed‐point continuous‐monitoring method. Its advantages over the existing methods, which include savings in time, economy, convenience, and flexibility, were also discussed. The Levenspiel and Smith method was employed in analysis and comparison.