On the potential temperature in the abyssal Pacific Ocean

A new map of the potential temperature at the bottom of the Pacific Ocean has been prepared It allows a more detailed description of the abyssal flow than has been possible before. In addition to the generally northward flow of the Pacific Bottom Water, some evidence is presented for the manner of modification of the Bottom Water, by vertical mixing and geothermal heating, into Pacific Deep Water, which must return southward above the Bottom Water layer...