Analyzing the waves in open sea

2002/06/01 Elhuyar Zientzia Iturria: Elhuyar aldizkaria

• Ozeanografia

The Scripps Oceanography Institute of San Francisco has taken the first steps to learn about the influence of open ocean waves on climate and ocean currents. Satellite positioning systems and aerial images have been used for the first time. The union of both systems has allowed recording and measuring the shape and exact size of the waves in open sea.

Studies have shown a mathematical relationship between wind speed and wave length. With this relationship, scientists believe they have a new tool to investigate the relationship between the atmosphere and the sea.

Waves facilitate heat and gas exchanges between water and the atmosphere. For example, when the sea is stirred, the exchange of heat between water and the atmosphere increases considerably. This exchange is very important when creating and regulating storms.

In addition, foam on a swell captures gases from atmosphere in air bubbles. These bubbles dissolve carbon dioxide, oxygen and other gases causing air pollution in the water. Salt water particles are also sent into the atmosphere through the foam. These particles, called aerosols, are related to fog formation and climate regulation.