Most Of The Pacific Ocean’s Volume Has Undergone Intensifying Cooling Since 1993
By Kenneth Richard on 19. September 2022
The Pacific Ocean is 5 to 6 km deep. New research indicates the bottom half (2 km to the bottom) of the Pacific has been robustly cooling since 1993.
A new preprint details the “surprising” Pacific cooling pattern from two ocean heat content (OHC) datasets over the 1993-2017 period.
Most OHC records only extend to the first 2 km of the ocean. Analyses of trends in the deeper ocean indicate intensified cooling from 2 km to the abyssal waters, or for well more than half the Pacific Ocean’s volume.
“The thermal state from 1993–2017 in the lower Pacific Ocean (below 2 km) was investigated using two dynamically-consistent syntheses. We show a robust and bottom-intensified cooling. This Pacific cooling is mainly determined by the meridional heat exchange with the Southern Ocean and the vertical heat advection.”
https://notrickszone.com/2022/09/19/most-of-the-pacific-oceans-volume-has-undergone-intensifying-cooling-since-1993/
