Science & Space
NOAA Graphic Shows Kelvin Waves Reshaping Ocean Surface Heights
A NOAA graphic explains how large, slow-moving Kelvin waves create measurable changes in sea surface height.
What happened
Kelvin waves are large, slow-moving ocean waves that are difficult to see and do not break onshore like typical waves. Satellite radar altimetry reveals their signature through sea-surface heights above or below the long-term average. The graphic shows elevated heights ranging from 0 to at least 1 metre.
Why it matters
The measurements make otherwise invisible ocean-wave patterns observable across large areas, including changes linked to El Niño, La Niña and ENSO.
Source: NOAA News