TAO/TRITON, RAMA, and PIRATA Buoys, Monthly, 1977-present, 20C Isotherm Depth
This dataset has monthly 20C Isotherm Depth data (the depth at which the ocean temperature is 20C) from the 
TAO/TRITON (Pacific Ocean, https://www.pmel.noaa.gov/gtmba/ ),
RAMA (Indian Ocean, https://www.pmel.noaa.gov/gtmba/pmel-theme/indian-ocean-rama ), and
PIRATA (Atlantic Ocean, …