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Document Type

Research

Abstract

Continuing the work begun by Tilton ('15-'16) and Birge and Juday ('19), the writer has, since 1922, made daily observations of the water temperatures of Lake Okoboji. Sample readings have been reported from time to time. Temperature curves for the several years under observation show considerable variation in the degree of zonation. Tilton's curves do not show any marked differentiation into epilimnion, thermocline, and hypolimnion. On the other hand in 1919 Birge and Juday's observations show a very distinct zonation. This is even more marked in the curves for 1922 (Stromsten '23) and reaches its climax in 1923 (fig. 1). In 1924 the zonation becomes less distinct (fig. 1) while in 1925 no distinct thermocline seems to have developed.

Publication Date

1926

Journal Title

Proceedings of the Iowa Academy of Science

Volume

33

Issue

1

First Page

299

Last Page

302

Copyright

© Copyright 1926 by the Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

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