부산대학교 도서관

The results of assessing long–term changes in water temperature in the northern part of the Atlantic Ocean (0°–70° N, 8°–80° W) according to the data of ocean reanalyses and objective analyses for the periods of 1961–2011 and 1980–2011 are presented. The obtained estimates are based on the use of a nonparametric method of regression analysis (quantile regression) for the monthly mean ocean temperature for a quantile value of 0.5. In 1961–2011 the warming was mainly recorded in the upper 400-m layer in the region from the equator to 70° N. Over this 51-year period, the increase in the median monthly ocean temperature was ~0.5°C on average in the analyzed water area, while in the Gulf Stream–North Atlantic Current system, it was ~1°C. During the period of 1980–2011, the warming in the northern part of the Atlantic Ocean occurred mainly in the upper 1-km layer at high latitudes (50°–65° N). Over this 32-year period, the median monthly mean ocean temperature increased in the subpolar gyre in the upper 400-m layer by ~1°C. [ABSTRACT FROM AUTHOR]