Circulation

Frazil ice formed below the ocean surface drives the generation of cold dense water. Credit: Masato Ito Scientists have uncovered new details of how ice forming below the ocean surface in Antarctica provides cold dense water that sinks to the seabed in an important aspect of global water circulation. …

Modern surface-ocean conditions in the North Atlantic, the extension of the Laurentide Ice Sheet (LIS) and the IRD-belt in the North Atlantic during the Last Glacial Maximum. (a) Annual mean sea surface temperature (color shading) and surface circulation (arrows) in the study area. Yellow dot: location of core site GeoB18530-1 (42° 50´ N, 49° 14´ W; 1,888 m water depth; this study); white dots: location of reference core sites MD01-2461 (51°45´ N, 12°…

Locations of geographic features and records used in this study. Credit: IOCAS As an important part of the global climate system, the westerly wind drives the mid-latitude surface currents, regulates the exchange of heat, water vapor, and carbon between the ocean and the atmosphere, and influences regional and global climate change.…

NYC commissioner for health Dr Mary T. BassettAndy Katz | Pacific Press | Lightrocket | Getty ImagesPolio has been detected in New York City, suggesting local circulation of the virus, health officials said on Friday. New York State Health Commissioner Dr. Mary Bassett called the findings alarming. Bassett said local and federal health officials are aggressively assessing how far polio has spread in the city and in New York state."For every one case of paralytic polio identified, hundreds more may be undetected," Bassett…

OnePlus 10T launch in India on Wednesday was succeeded shortly by the debut of the phone's accessories. OnePlus has launched two cases and tempered glass for the newly-launched handset in the country. One of them is specifically designed to dissipate heat and keep the phone's temperature under check at all times. It is also claimed to be 5G-compatible, essentially allowing the signals flow. The other one is a simple-looking offering with Black paint and textured finish. The OnePlus 10T comes with a Corning Gorilla Glass 5…

In mammals, blood carries oxygen and nutrients to the body's organs and cells. But if blood flow stops, these cells will quickly die and organs are injured.This death can be slowed in organs and tissues removed from the body, buying time for organ transplantation. However, preserving entire organ systems minutes after the heart stops pumping can be a challenge.  Existing methods include what's known as an extracorporeal membrane oxygenation system (ECMO), which pumps blood into a machine that removes carbon dioxide from…

They then tested OrganEx’s efficacy by comparing pigs treated with it with pigs hooked up to a more traditional machine used by hospitals to save the lives of patients with severe heart and lung conditions by restoring their circulation, a process called extracorporeal membrane oxygenation (ECMO). The organs treated with the OrganEx were found to have fewer signs of hemorrhage, cell damage or tissue swelling than those treated with ECMO. The researchers said this demonstrates the system can repair some functions in…

Some fossil specimens of the cold water coral Desmophyllum dianthus from the Tasman Sea. Credit: Eleni Anagnostou Located between Australia and New Zealand, the Tasman Sea is an important but so far neglected component of the global ocean conveyor belt. Now a new study has discovered evidence that this marginal sea in the South Pacific also played an important role in the exchange of water masses between the large ocean…

Geographical location and bathymetry of the South China Sea. Credit: HKUST A research team led by Prof. Gan Jianping, director of the Center for Ocean Research Hong Kong and Macau (CORE) at The Hong Kong University of Science and Technology (HKUST), carried out field observations and conducted numerical simulations in the South China Sea (SCS) and revealed never-before-seen characteristics of the three-dimensional ocean…

Climate change is slowing down the conveyor belt of ocean currents that brings warm water from the tropics up to the North Atlantic.Our research, published today (June 6) in Nature Climate Change, looks at the profound consequences to global climate if this Atlantic conveyor collapses entirely.  We found the collapse of this system – called the Atlantic meridional overturning circulation – would shift the Earth's climate to a more La Niña-like state.This would mean more flooding rains over eastern Australia and worse…