US CLIVAR organized the 'Tropical Pacific Observing Needs to Advance Process Understanding and Representation in Models Workshop' from May 24 to 26, 2021. The meeting was 100% virtual. Over 200 participants from more than 30 countries registered for the event. Five members from CLIVAR Pacific Region Panel (Sophie Cravatte, Kris Karnauskas, Sam Stevenson, Andrew Wittenberg, Antonietta Capotondi) and Jose Santos, Executive Director of the ICPO, attended the workshop together with other members from CLIVAR groups.

The primary aim of the Tropical Pacific Observing Needs Workshop was to build upon the recommendations put forth by the TPOS2020, OceanPredict’19, and other workshops to bring together the observational, modeling, and data-assimilation communities to determine the observing needs to advance process understanding of the tropical Pacific Ocean and its representation in models with a goal to improve ocean-atmosphere prediction. This workshop provided:

• A forum to discuss observational needs to advance understanding of tropical Pacific ocean-atmosphere coupled processes and their representations in climate, forecast, and biogeochemical models.
• The opportunity for atmospheric scientists, oceanographers, observationalists, and modelers to interact, bridge conceptual gaps, and develop scale-aware observational strategies to advance our fundamental understanding of ocean-atmosphere coupled processes.