Welcome to the new US CLIVAR website. Please feel free to look around while we continue to add and update pages.

US CLIVAR Climate Variability and Predictability Program

Who We Are

US CLIVAR is a national research program with a mission to foster understanding and prediction of climate variability and change on intraseasonal-to-centennial timescales, through observations and modeling with emphasis on the role of the ocean and its interaction with other elements of the Earth system, and to serve the climate community and society through the coordination and facilitation of research on outstanding climate questions.

Our Research

The ocean plays a key role in providing a major long-term "memory" for the climate system, generating or enhancing variability on a range of climatic timescales. Understanding the ocean's role in climate variability is therefore crucial for quantifying and harnessing the predictability inherent to the Earth system. US CLIVAR-led research has played a substantial role in advancing understanding of, and skill in predicting climate variability and change.

Science and Research Challenges

Cracked earth

Seasonal Prediction


Decadal Variability
and Predictability

Flooding in neighborhood

Climate Change

Tornado and lightning

Climate and Extreme

Ice in polar landscape

Polar Climate Changes

Fish swimming undersea

Climate and Marine

Coast with cliffs and waves

Climate at the Coasts


Variability in Pacific Sardine recruitment is related to spring sea surface temperature in the California Current.

Ecological Forecasting Workshop Blog

Leading up to the workshop, the Scientific Organizing Committee is publishing blog posts about ecological forecasting science, stakeholders and applications, research activities, results, and challenges. Check out the first post by Victoria Coles.

Image of the ocean and atmosphere

Now hiring: Program Specialist to support the Air-Sea Transition Zone Study Group

We are hiring a Program Specialist that will provide organizational support to enable the work of the study group and related activities. Applications are due November 30, 2021.

Art by Dave Bonan

The Pattern Effect: Coupling of SST Patterns, Radiative Feedbacks, and Climate Sensitivity Workshop

Scheduled for May 10-13, 2022. The workshop's goal is to advance our understanding of the coupling between surface temperatures and radiative feedbacks and the origin and timescales of surface temperature pattern evolution.

Cover of the Fall 2021 Variations

2021 Fall Variations

This edition of Variations themed "New Frontiers for Ocean Surface Currents" features 6 articles from state of knowledge of vertical velocity structure to the expected impact of technological and modeling advances.

Upcoming Webinars

Process Study Webinar Series

Title: Evaluating mechanisms for enhanced mixing below tropical instability waves
Presenter: Caitlin Whalen, University of Washington

Phenomena, Observations, and Synthesis Webinar Series

Title: Pathways and time scales of Greenland freshwater anomaly in the subpolar North Atlantic
Presenter: Dmitry Dukhovskoy, Florida State University