Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Status Confirmed
Seminar Series SEM-PHYS-ENS
Subjects physics.geo-ph
Date Thursday 11 May 2017
Time 13:30
Institute DPT-PHYS-ENS
Seminar Room room Conf. IV, 24 Rue Lhomond, ENS Paris
Speaker's Last Name Speich
Speaker's First Name Sabrina
Speaker's Email Address
Speaker's Institution Laboratoire de Météorologie Dynamique, ENS
Title The ocean: A turbulent control system for the Earth’s climate
Abstract Today, we can consider the ocean as the key component of the climate system. Because of its ability to take up heat and absorb greenhouse gases such as carbon dioxide (CO2), the ocean has greatly neutralized the effects of increasing human-sourced greenhouse gases in the atmosphere and has helped to reduce substantially the rate of climate change. However, the ocean remains woefully understudied due to its vastness and to the technical difficulties of ocean observations. Moreover, ocean dynamics are highly turbulent. Measuring, modeling and understanding such complex and rapidly varying processes, together with the air-sea interactions related to the ocean, represent major scientific challenges in climate science. To unveil these unknowns and uncertainties is an essential step toward predicting future climate evolution in a more reliable manner. In this talk, I will highlight some of the most recent progress we made in understanding processes, observing the ocean and modeling capabilities, and some of the challenges that still need to be addressed. These include a well-coordinated international effort to develop and organize a fit-for-purpose innovative ocean observing system.
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