SAMS Oceanographer Dr Vladimir Ivanov has today deployed an oceanographic mooring in the Arctic Ocean as part of the NABOS array (http://nabos.iarc.uaf.edu/cruise/2009/). The temperature and speed of Atlantic water entering the Arctic are important factors in controlling the extent and thickness of seaice in the Arctic. This mooring is in a critical location, allowing us to monitor future changes in the quantity of heat entering the Arctic Ocean from the North Atlantic.