Temperature profiles in lake bottom sediments. Data from measurements in Lake Mendota. Data are taken from the Tables given in the pioneering paper Birge, E. A., C. Juday, and H. W. March, 1927: The temperature of the bottom deposits of Lake Mendota, Trans. Wiscon. Acad. Sci., vol. 23, pp. 187-231. Data are presented in two columns, first column - depth below the water-sediment interface, m, second column - temperature, degrees C. Table 2 Eight-meter Station Mean of observations, 1918, 1919 and 1920. Jan 1 0.0 0.8 0.5 4.2 1.0 6.5 1.5 8.4 2.0 9.8 2.5 10.7 3.0 11.0 4.0 11.3 5.0 10.8 Jan 15 0.0 0.9 0.5 3.6 1.0 5.9 1.5 7.7 2.0 8.8 2.5 10.2 3.0 11.6 4.0 11.0 5.0 10.6 Feb 1 0.0 1.1 0.5 3.6 1.0 5.6 1.5 7.3 2.0 8.4 2.5 9.8 3.0 10.2 4.0 10.8 5.0 10.6 Feb 15 0.0 1.3 0.5 3.4 1.0 5.1 1.5 6.8 2.0 7.9 2.5 9.1 3.0 9.7 4.0 10.5 5.0 10.6 Mar 1 0.0 1.5 0.5 3.1 1.0 5.0 1.5 6.4 2.0 7.5 2.5 8.3 3.0 9.1 4.0 10.2 5.0 10.6 Mar 15 0.0 2.0 0.5 3.3 1.0 4.7 1.5 6.0 2.0 7.2 2.5 7.9 3.0 8.7 4.0 9.7 5.0 10.5 Apr 1 0.0 2.7 0.5 4.1 1.0 4.9 1.5 6.0 2.0 7.1 2.5 7.8 3.0 8.6 4.0 9.5 5.0 10.3 Apr 15 0.0 4.1 0.5 5.1 1.0 5.6 1.5 6.2 2.0 7.2 2.5 7.8 3.0 8.5 4.0 9.5 5.0 10.2 May 1 0.0 6.3 0.5 6.2 1.0 6.1 1.5 6.6 2.0 7.2 2.5 7.8 3.0 8.5 4.0 9.3 5.0 10.1 May 15 0.0 9.4 0.5 8.5 1.0 7.4 1.5 7.1 2.0 7.3 2.5 7.9 3.0 8.4 4.0 9.3 5.0 9.9 Jun 1 0.0 13.5 0.5 10.2 1.0 8.9 1.5 8.1 2.0 7.9 2.5 8.0 3.0 8.4 4.0 9.2 5.0 9.8 Jun 15 0.0 16.0 0.5 12.8 1.0 10.5 1.5 9.3 2.0 8.5 2.5 8.3 3.0 8.5 4.0 8.9 5.0 9.5 Jul 1 0.0 18.2 0.5 14.6 1.0 12.2 1.5 10.3 2.0 9.4 2.5 9.0 3.0 8.6 4.0 8.9 5.0 9.4 Jul 15 0.0 19.9 0.5 17.1 1.0 14.3 1.5 11.7 2.0 9.8 2.5 9.6 3.0 8.9 4.0 8.8 5.0 9.2 Aug 1 0.0 22.3 0.5 20.1 1.0 16.5 1.5 13.3 2.0 11.6 2.5 10.3 3.0 9.7 4.0 9.2 5.0 9.4 Aug 15 0.0 22.0 0.5 19.7 1.0 16.8 1.5 14.1 2.0 12.7 2.5 11.1 3.0 10.2 4.0 9.5 5.0 9.6 Sep 1 0.0 20.0 0.5 18.3 1.0 16.5 1.5 14.4 2.0 12.9 2.5 11.5 3.0 10.7 4.0 9.9 5.0 9.7 0 Sep 15 0.0 18.6 0.5 17.3 1.0 16.1 1.5 14.5 2.0 13.1 2.5 11.9 3.0 11.1 4.0 10.0 5.0 9.5 Oct 1 0.0 16.7 0.5 16.5 1.0 15.5 1.5 14.4 2.0 13.3 2.5 12.2 3.0 11.4 4.0 10.3 5.0 9.5 Oct 15 0.0 14.4 0.5 15.2 1.0 14.8 1.5 14.2 2.0 13.5 2.5 12.8 3.0 11.8 4.0 10.8 5.0 9.9 Nov 1 0.0 12.0 0.5 12.9 1.0 13.7 1.5 14.0 2.0 13.5 2.5 13.0 3.0 12.1 4.0 10.9 5.0 10.4 Nov 15 0.0 7.9 0.5 9.0 1.0 12.0 1.5 12.5 2.0 13.0 2.5 12.7 3.0 12.2 4.0 11.2 5.0 10.6 Dec 1 0.0 4.6 0.5 7.0 1.0 10.0 1.5 11.2 2.0 12.0 2.5 12.1 3.0 11.9 4.0 11.1 5.0 10.7 Dec 15 0.0 2.3 0.5 5.7 1.0 8.3 1.5 9.8 2.0 11.0 2.5 11.4 3.0 11.5 4.0 11.1 5.0 10.6 Table 5 Twelve-meter Station Mean of observations, 1918, 1919 and 1920. Jan 1 0.0 0.7 0.5 3.0 1.0 6.2 1.5 8.3 2.0 9.3 3.0 10.1 4.0 10.1 5.0 9.6 Jan 15 0.0 0.8 0.5 3.1 1.0 5.5 1.5 7.6 2.0 8.7 3.0 9.7 4.0 9.8 5.0 9.6 Feb 1 0.0 1.3 0.5 3.2 1.0 5.2 1.5 7.2 2.0 8.3 3.0 9.6 4.0 9.8 5.0 9.7 Feb 15 0.0 1.7 0.5 3.3 1.0 4.9 1.5 6.7 2.0 7.7 3.0 9.2 4.0 9.6 5.0 9.6 Mar 1 0.0 1.8 0.5 3.4 1.0 4.8 1.5 6.2 2.0 7.3 3.0 8.4 4.0 9.2 5.0 9.6 Mar 15 0.0 2.1 0.5 3.8 1.0 4.6 1.5 6.2 2.0 7.4 3.0 8.7 4.0 9.3 5.0 9.8 Apr 1 0.0 3.3 0.5 4.3 1.0 5.2 1.5 6.2 2.0 7.3 3.0 8.6 4.0 9.3 5.0 9.7 Apr 15 0.0 4.4 0.5 4.9 1.0 5.3 1.5 5.9 2.0 6.7 3.0 8.1 4.0 9.0 5.0 9.6 May 1 0.0 6.3 0.5 6.3 1.0 5.9 1.5 6.1 2.0 6.6 3.0 7.8 4.0 8.8 5.0 9.2 May 15 0.0 9.1 0.5 8.0 1.0 6.9 1.5 6.7 2.0 6.9 3.0 7.9 4.0 8.8 5.0 9.1 Jun 1 0.0 11.3 0.5 9.7 1.0 8.2 1.5 7.5 2.0 7.3 3.0 8.1 4.0 8.6 5.0 9.2 Jun 15 0.0 12.7 0.5 10.8 1.0 9.2 1.5 8.5 2.0 8.2 3.0 8.2 4.0 8.6 5.0 9.2 Jul 1 0.0 14.2 0.5 11.9 1.0 10.3 1.5 9.3 2.0 8.6 3.0 8.4 4.0 8.6 5.0 9.1 Jul 15 0.0 15.3 0.5 12.8 1.0 11.2 1.5 9.9 2.0 9.0 3.0 8.6 4.0 8.7 5.0 8.8 Aug 1 0.0 14.6 0.5 12.9 1.0 11.3 1.5 10.1 2.0 9.3 3.0 8.6 4.0 8.7 5.0 8.8 Aug 15 0.0 14.6 0.5 13.3 1.0 11.7 1.5 10.3 2.0 9.7 3.0 8.7 4.0 8.8 5.0 8.8 Sep 1 0.0 15.2 0.5 14.0 1.0 12.3 1.5 11.2 2.0 10.2 3.0 9.1 4.0 9.0 5.0 8.9 Sep 15 0.0 16.6 0.5 16.0 1.0 13.0 1.5 11.5 2.0 10.5 3.0 9.5 4.0 9.2 5.0 8.8 Oct 1 0.0 16.2 0.5 15.5 1.0 12.8 1.5 11.6 2.0 10.6 3.0 9.6 4.0 9.2 5.0 8.8 Oct 15 0.0 14.2 0.5 14.9 1.0 13.2 1.5 12.0 2.0 10.9 3.0 9.8 4.0 9.4 5.0 8.9 Nov 1 0.0 11.9 0.5 12.2 1.0 12.8 1.5 12.4 2.0 11.3 3.0 10.3 4.0 9.5 5.0 9.2 Nov 15 0.0 7.4 0.5 10.5 1.0 11.3 1.5 11.7 2.0 11.3 3.0 10.5 4.0 10.1 5.0 9.5 Dec 1 0.0 4.6 0.5 7.8 1.0 9.4 1.5 10.5 2.0 10.8 3.0 10.4 4.0 10.0 5.0 9.4 Dec 15 0.0 2.2 0.5 5.5 1.0 7.9 1.5 9.4 2.0 10.1 3.0 10.1 4.0 9.5 5.0 9.3 Table 7 Station I-18 m Mean of observations, 1918, 1919 and 1920. Jan 1 0.0 1.8 0.5 4.4 1.0 6.4 1.5 7.7 2.0 8.5 3.0 8.8 4.0 8.5 5.0 8.6 Feb 1 0.0 2.5 0.5 4.5 1.0 6.1 1.5 7.0 2.0 8.0 3.0 8.9 4.0 8.6 5.0 8.6 Mar 1 0.0 3.4 0.5 5.0 1.0 6.3 1.5 7.3 2.0 7.8 3.0 8.8 4.0 8.7 5.0 8.7 Apr 1 0.0 4.1 0.5 5.3 1.0 6.2 1.5 6.9 2.0 7.5 3.0 8.4 4.0 8.6 5.0 8.8 May 1 0.0 6.3 0.5 6.3 1.0 6.2 1.5 6.6 2.0 7.2 3.0 8.1 4.0 8.4 5.0 8.6 Jun 1 0.0 9.6 0.5 8.2 1.0 7.2 1.5 7.2 2.0 7.5 3.0 8.0 4.0 8.4 5.0 8.6 Jul 1 0.0 10.8 0.5 10.0 1.0 8.8 1.5 7.9 2.0 7.7 3.0 8.0 4.0 8.2 5.0 8.4 Aug 1 0.0 11.4 0.5 10.6 1.0 9.8 1.5 8.9 2.0 8.4 3.0 8.0 4.0 7.9 5.0 8.1 Sep 1 0.0 11.8 0.5 10.7 1.0 9.9 1.5 9.0 2.0 8.5 3.0 8.1 4.0 7.8 5.0 7.9 Oct 1 0.0 12.5 0.5 11.0 1.0 9.8 1.5 9.1 2.0 8.6 3.0 8.1 4.0 7.8 5.0 7.8 Nov 1 0.0 10.7 0.5 10.5 1.0 9.8 1.5 9.3 2.0 8.9 3.0 8.2 4.0 7.8 5.0 8.1 Dec 1 0.0 4.6 0.5 7.5 1.0 8.6 1.5 8.7 2.0 9.0 3.0 8.7 4.0 8.0 5.0 8.1 Table 9 Station II-23.5 m Mean of observations, 1918, 1919 and 1920. Jan 1 0.0 2.8 0.5 5.1 1.0 7.0 1.5 7.9 2.0 8.3 3.0 8.7 4.0 8.6 5.0 8.2 Feb 1 0.0 3.0 0.5 4.5 1.0 5.9 1.5 7.1 2.0 7.8 3.0 8.6 4.0 8.7 5.0 8.2 Mar 1 0.0 3.4 0.5 4.6 1.0 5.5 1.5 6.6 2.0 7.4 3.0 8.1 4.0 8.4 5.0 8.4 Apr 1 0.0 3.4 0.5 4.8 1.0 5.6 1.5 6.5 2.0 7.0 3.0 7.9 4.0 8.3 5.0 8.5 May 1 0.0 5.8 0.5 5.9 1.0 6.0 1.5 6.4 2.0 7.0 3.0 8.0 4.0 8.3 5.0 8.5 Jun 1 0.0 9.8 0.5 8.3 1.0 7.3 1.5 7.1 2.0 7.3 3.0 7.9 4.0 8.3 5.0 8.3 Jul 1 0.0 10.5 0.5 9.4 1.0 8.2 1.5 7.9 2.0 7.6 3.0 7.8 4.0 8.2 5.0 8.3 Aug 1 0.0 10.8 0.5 10.1 1.0 9.1 1.5 8.3 2.0 7.9 3.0 7.6 4.0 7.9 5.0 8.2 Sep 1 0.0 11.0 0.5 10.2 1.0 9.2 1.5 8.5 2.0 8.0 3.0 7.8 4.0 7.9 5.0 8.1 Oct 1 0.0 11.5 0.5 10.5 1.0 9.6 1.5 8.9 2.0 8.5 3.0 8.0 4.0 7.8 5.0 7.8 Nov 1 0.0 11.2 0.5 10.6 1.0 9.9 1.5 9.3 2.0 8.6 3.0 8.1 4.0 7.8 5.0 7.8 Dec 1 0.0 5.9 0.5 7.8 1.0 8.6 1.5 8.8 2.0 8.5 3.0 8.2 4.0 8.1 5.0 7.9 Table 11 Station Eight meters, South side of the lake May 28-29, 1919 0.0 11.2 0.5 10.7 1.0 9.1 1.5 8.4 2.0 8.0 2.5 8.3 3.0 8.5 3.5 8.8 4.0 9.2 4.5 9.6 5.0 9.8 Table 11 Station Eight meters, Northeast Bay May 28-29, 1919 0.0 12.2 0.5 9.8 1.0 8.6 1.5 8.4 2.0 8.6 2.5 9.1 3.0 9.5 3.5 9.8 4.0 10.3 4.5 10.5 Table 11 Station Twelve meters, South side of the lake May 28-29, 1919 0.0 10.5 0.5 9.5 1.0 8.3 1.5 7.7 2.0 7.8 2.5 8.0 3.0 8.5 3.5 8.7 4.0 9.0 4.5 9.3 5.0 9.5 Table 11 Station Twelve meters, Northeast Bay May 28-29, 1919 0.0 10.5 0.5 9.2 1.0 8.0 1.5 7.7 2.0 8.1 2.5 8.6 3.0 9.0 3.5 9.4 4.0 9.6 4.5 9.9 Table 13 Station University Bay, 12.5 m, Southeast Jan 9, 1919 0.0 0.2 0.5 2.8 1.0 6.4 1.5 8.6 2.0 9.6 2.5 10.0 3.0 10.1 4.0 9.8 5.0 9.6 Table 13 Station University Bay, 12.0 m, Southwest Jan 9, 1919 0.0 0.3 0.5 4.8 1.0 7.2 1.5 9.1 2.0 10.0 2.5 10.1 3.0 10.1 4.0 9.6 5.0 9.5