Underwater drones break depth record

 作者:咸氙     |      日期:2019-03-03 03:19:03
Two underwater drones have travelled further than any unmanned underwater machines before. The “seagliders” spent 191 days crossing almost 3000 kilometres of the Pacific, while diving to the depths to sample ocean temperature, salinity and oxygen levels. Deployed midway between Hawaii and California last September by researchers from the University of Washington, Seattle, one seaglider made 599 dives while the other made 559 dives. After each dive, which can last up to 9 hours,