-4H- - Underwater Node

Underwater nodes provide the necessary infrastructure in terms of e.g. electrical power and data connections to continuously operate complex sensor systems having high power consumption on the seafloor. A stable underwater node technology for shallow water installation (< 300 m) has been developed in the frame of COSYNA (Coastal Observing System for Northern and Artic Seas). The COSYNA underwater node can be installed with a cable connection to shore up to 30 km offshore for a yearround operation. Thus, it provides the opportunity for a continuous observation of processes in the oceans and coastal areas. Since 2014 two COSYNA underwater systems are in operation: one is offshore the German island Helgoland, the second one is installed in the Arctic at 79°N offshore Spitsbergen (Svalbard).