Tharp was a pioneering cartographer and geologist whose meticulous maps of the Atlantic Ocean floor revealed the unseen and ...

Since National Geographic began making maps in 1915 ... the ACC transports more water than any other ocean current. It pulls in waters from the Atlantic, Pacific, and Indian Oceans, helping ...

This heatmap anination shows the concentration of known deep-sea dives with visual observations in the North Atlantic.

This story appears in the April 2017 issue of National Geographic magazine. The map above is essentially an x-ray of the ocean, and the colors show where it’s feeling the most impact from human ...