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Medientyp:
E-Artikel
Titel:
A Portable Photocell Fluorometer for Dilution Measurements in Natural Waters
Beteiligte:
Noble, Vincent E.;
Ayers, John C.
Erschienen:
American Society of Limnology and Oceanography, 1961
Erschienen in:Limnology and Oceanography
Sprache:
Englisch
ISSN:
0024-3590
Entstehung:
Anmerkungen:
Beschreibung:
<p>A portable flourometer for use with a flourescent dye tracer in field measurements of dilution rates in natural waters has been designed and tested. The unit is inexpensive, accurate, and reliable. It requires only a small amount of a-c power. The instrument has been used in a series of 24 measurements of the dilution rate in the surface waters of Little Traverse Bay, Lake Michigan. The dilution of a quantity of dye introduced into the Bay is given by: D(T) = $R^T/t_t$ where T is the time in minutes, and t is a quantity expressing the dilution period of interest. The average value for the observed dilution ratio, under winds up to 10-12 mph, is $(r_10)_av$ = 2(i.e., an average dilution of x2 every 10 min).</p>