Ocean Heat, 38" H x 41" W
Embroidery on silk shows heat content
in the top 700 meters (2300') of the ocean, data collection tools, and the relevance of heat content to climate science.

Ninety percent of global warming is occurring in the ocean, causing the water’s internal heat to increase since modern recordkeeping began in 1955. Heat stored in the ocean causes its water to expand, which is responsible for one-third to one-half of global sea level rise. Most of the added energy is stored at the surface, at a depth of zero to 700 meters. The last 10 years were the ocean’s warmest decade since at least the 1800s. The year 2021 was the ocean’s warmest recorded year and saw the highest global sea level.

Instruments that measure ocean heat include Argo floats. Argo is a global array of 3,800 free-drifting profiling floats that measures the temperature and salinity of the upper 2000 meters (about 6562 feet) of the ocean. This allows, for the first time, continuous monitoring of the temperature, salinity, and velocity of the upper ocean, with all data being relayed and made publicly available within hours after collection. For more information on Argo, go to: What is Argo?

Link to NASA's page on Ocean Warming.