Seasonal Ocean Forecast (IMAGE) University of Washington Caption The Pacific Northwest summer oxygen, chlorophyll, temperature and pH are compared between past modeled values (top), January forecast (middle) and April forecast (bottom) for the summer of 2013. At the bottom are predictions for upwelling of water along the coast, which is what affects these values. Credit Samantha Siedlecki/University of Washington Usage Restrictions With credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.