Long-Term Fluctuations in the Surface Temperature of the World Ocean due to Changes in Geomagnetic Activity

Abstract

Purpose. It was supposed to obtain estimates of the relationship between temperature fluctuations on the surface of the oceans and changes in geomagnetic activity, taking into account spatial and temporal features. Method. The method of asynchronous correlation analysis of the relations between the sea surface temperature at the geographic grid and changes of geomagnetic activity for 1868-2018 was used. Results. Positive correlations of temperature with geomagnetic activity were found on the Antarctic current in the region were it intersects of the East Pacific Rise of the ocean floor (with delay 32-33 years), as well as on the intersection by Antarctic currents of the southern end of the Mid-Atlantic Ridge (with delay 22-26 years) and in the narrow of ocean between Australia and Antarctica (about 30 years late). The same high correlations were obtained in the central equatorial part of the Pacific Ocean, in the region where El Nine and La Nine appear (a delay of about 43 years), and in the region of the Southern Oscillation (a delay of 42-44 ears). Negative correlations were found in the Gulf of Mexico (with 35-36 year delay) in the region were North Atlantic current crosses the Mid-Atlantic Ridge (32-34 year delay). The same correlation were on the Bengal current crosses Whale Range (37-39 year delay). In the Pacific Ocean, negative correlations were found at the intersection of North-West underwater ridge by the North-Pacific current (the delay of 39-44 years) and negative correlations on the East Australian current near of the islands of Polynesia (delay of 37-39 years). Conclusions. In the areas of the main ocean currents, close connections were found between changes in the surface temperature of the ocean and disturbances in the Earth's magnetic field. The effect on the ocean currents of electricity that occur in the ocean during magnetic storms is assumed, by analogy with the known phenomena in the magnetosphere and ionosphere. The delay in surface temperature changes is explained by the time of disturbance transmission from large depths of the ocean to the surface.