. , I I I I I I I I I I I I I ' ' SEPT OCT NOV DEC JAM FEB MAR APR MAY JU^.E JULY AUG SEPT OCT NOV DEC Fig. II. Seasonal rise and fall of temperature, derived from Fig. 10. In the Pacific sector the northward extension of cold water between 120 and 160° W, and the com- pression of S^ isotherms in the winter and spring months in the Bellingshausen Sea and Drake Strait ^"XTs^e^^e^^^^^^^ of the temperature m different months and diff nf iXdes. For Fig. :o the latitude of each isotherm in each month ^^^--f-]^ II-XII at every 30^^ of longitude, and the average was plotted. For example, in Plat
. , I I I I I I I I I I I I I ' ' SEPT OCT NOV DEC JAM FEB MAR APR MAY JU^.E JULY AUG SEPT OCT NOV DEC Fig. II. Seasonal rise and fall of temperature, derived from Fig. 10. In the Pacific sector the northward extension of cold water between 120 and 160° W, and the com- pression of S^ isotherms in the winter and spring months in the Bellingshausen Sea and Drake Strait ^"XTs^e^^e^^^^^^^ of the temperature m different months and diff nf iXdes. For Fig. :o the latitude of each isotherm in each month ^^^--f-]^ II-XII at every 30^^ of longitude, and the average was plotted. For example, in Plate VI (Februa^^ tL avLag lal^ of the 0° isotherm was found to be 65° 40' S. Thus m Fig xo the curve f r the average latitu isotherms are correct the diagram should '^eTrect ii; esl ^Z^^. i. . between .he differen. . and o ,he Ze of the temperature gradient south of the convergence. The slope of the gradient on the cllrgence and to the north of it, and differences in the shapes of the monthly curves are perhaps notve^ rel able The figure shows that surface temperatures are much the same m January and March, : il Nov mber and j!ly, that south of the convergence the water is warmer „t December than m T ,! b,„ if wou d OTobably not be justifiable to infer much more than this, '"pt ;'is de W dtom' FTg .0, the for each month being plotted at arbitrary of Lfitude Ttflattening of the curves at the foot of the diagram indicates that the water ,s (on the
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