ID2

The mooring ID2, operational from June 2014 to June 2016 and from July 2018 until October 2019, was located in the eastern Fram Strait along the western offshore Svalbard margin, at approximately 1044 m depth. It was deployed together to its twin system S1, located about 170 km south from ID2.
Here, water masses, strongly influenced by the interaction between Atlantic and Arctic waters and by local atmospheric forcing, substantially contribute to driving the global thermohaline circulation.
In this region, there is remarkable variability in the system due to several forcing mechanisms (e.g., atmospheric, internal, tidal, shelf dynamics) that play an important role, especially in the upper layer. On the contrary, it is not completely clear which processes are responsible for the inter-annual and seasonal deep flow variability in the western offshore Spitsbergen region.
The mooring ID2 was specifically designed to collect ocean parameters (temperature, salinity, dissolved oxygen, turbidity, sediment flux, ocean currents) in the deep layer, covering approximately the last 150 m of the water column.
The mooring was maintained by OGS and CNR-ISP (Italy), and in 2018-2019 was deployed/recovered in the framework of the collaboration with Italian Navy Hydrographic Institute (High North programme, cruises conducted with r/v Alliance)