US Climate Variability and Predictability Program

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


A flyer advertising a topic at AGU 2022

US CLIVAR at Fall AGU 2022: Mesoscale and Submesoscale Ocean-Atmosphere Interactions and Influence on Earth’s Climate

Be sure to stop by one of the Air-Sea Interactions Working Group's sessions at Fall AGU 2022 in-person or online.

A flyer advertising a Town Hall at AGU 2022

US CLIVAR at Fall AGU 2022: Town Hall on the Air-Sea Transition Zone

Please join us for a Town Hall to preview the Air-Sea Transition Zone Study Group's observing and modeling strategy and provide feedback.

A group of hikers

2022 Call for new US CLIVAR Working Groups

Requests are now being accepted for new US CLIVAR-sponsored Working Groups. All documents must be submitted by November 4, 2022.

Group picture from the Gulf Stream Meeting in June 2022

Fall 2022 call for US CLIVAR-supported workshops

Requests for US CLIVAR-sponsored workshops, scientific conferences, meetings, and trainings are due October 21, 2022.

Upcoming Webinars

Process Study Webinar Series

Title: How Observations are Being Used to Evaluate and Improve Models, Forecasts, and Future Projections of Tropical Pacific Climate and the El Niño / Southern Oscillation (ENSO)

Andrew Wittenberg, NOAA GFDL

Discussion will inclue some of the challenges of using existing observations to constrain global coupled ocean-atmosphere simulations at climate scales and some exciting recent advances toward community-wide diagnostics and metrics for models.