Ocean pH and acidification February 15, 2014 Ocean pH of the 70’s For the pelagic zone (upper 200 m of ocean levels), over the decade of the 1970’s, I have extracted 475,194 pH records. All data were accessed from the NOAA WOD database 2902total visits,3visits todayTweetShareSharePin You May Also Like Ocean pH and acidification Ocean pH and NASA’s Seawater O-18 Map Ocean pH and acidification Ocean pH of the 1980s