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Each of the 11 Regional Associations design, maintain and operate regional coastal observing systems and develop information products for their users.

Click on the icon to explore the regional coastal observing system near you.

 

News

Throughout this summer and fall, the U.S. coastline has been hit with a wave of harmful algal blooms (HABs). IOOS Regional Associations (RAs) are developing new tools to predict HABs events.

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