NOAA scientists and collaborators have just published a review article in Annual Review of Marine Science that summarizes our GO-SHIP repeat hydrography efforts conducted since the early 1990’s across the global oceans. The article found that the ocean is taking up a large fraction of the carbon dioxide and most of the excess heat caused by fossil-fuel burning and land use changes. Roughly 27% of the carbon dioxide released into the atmosphere by human activities is stored in the ocean, which in turn lowers the pH in the upper ocean. The ocean is taking up most of Earth's excess anthropogenic heat, with about 19% of this excess in the deep ocean beneath 2,000 m, dominated by Southern Ocean deep-ocean warming. The global hydrography has mapped dissolved organic carbon, a large, bioactive reservoir, for the first time and quantified its contribution to export production (∼20%) and deep-ocean oxygen utilization.
PMEL in the News
Floods in South America, fires in Indonesia, famine threatened in Ethiopia, yet more drought in Southern Africa and central America. Plus, a stunning peak in global temperatures for 2015. The current El Nino, just past its peak, has a lot to answer for. Roland Pease talks to the experts.
The National Oceanic and Atmospheric Administration (NOAA) and NASA have teamed up on a major study of El Niño. A potentially record El Niño is underway in the Pacific and has already altered weather around the world.
Pressure gradients between the Gulf of Mexico and the Tropical Eastern Pacific Ocean drive intense, intermittent northerly winds through gaps in the mountainous Central American isthmus. These wind jets have long been known to influence oceanographic conditions in the eastern tropical Pacific, from striking remote sensing images that show the effect of these northerly winds on sea surface temperature and wind speeds (... more