Pacific El Nino-Southern Oscillation Applications Center Pilot Project

In the early 1970s, the University of Hawaii Sea Level Center began installing tide gauges in the tropical Pacific to study the potential of sea level observations for ocean monitoring. Using data from this network of gauges, Professor Klaus Wyrtki presented the first detailed descriptions of the oceanic ENSO cycle in the tropical Pacific. Further development of this program over the intervening years has resulted in the Indo-Pacific Sea Level Network, presently the largest open ocean sea level network in the world operated by a single group.