Detecting slow motion non audible sounds created from planetary waves from space sounds impossible but not for researchers at the University of Liverpool. The narrow openings between the islands of the Caribbean let enough water current to pass through to generate the sounds of an A-Flat when the sounds is sped up so that we can hear it.
Caribbean Sea Rossby Whistle

TCarta Marine has been hard at work updating our coverage in the Caribbean Sea to include 30m satellite derived bathymetry data as well as a newly launched webmap. Perhaps we should whistle while we are at work, and A Flat of course. Check out the webmap here:

Caribbean Sea Webmap