Abstract
The main objective of the joint Nansen Legacy and A-TWAIN/SIOS-InfraNor mooring service cruise was the recovery and deployment of the projects’ moorings in the Barents Sea and north of Svalbard. Additionally, CTD stations with water sampling for both projects, a Seaglider deployment for NL, and mooring recoveries and deployments for partner projects were planned, depending on sea ice conditions and time available.
Highlights
This cruise is a joint venture between two main projects; Nansen Legacy (NLEG) and A-TWAIN/ SIOS-InfraNor
In situ sea ice observations are made for comparison with satellite-derived sea ice products (T1-2.2 and RA-C)
Water samples for analysis of nutrients, POC, chl-a and carbon chemistry were collected at selected locations, mostly near key moorings (NLEG T2-1.1, T3-1.2)
Summary
This cruise is a joint venture between two main projects; Nansen Legacy (NLEG) and A-TWAIN/ SIOS-InfraNor. Nansen Legacy has mooring components in two sub-tasks; T1-1.2 (large scale advection) and T1-2.1 (ocean process studies). The NLEG moorings cover a) advection of water masses and sea ice into the northern Barents Sea (T1-1.2, T2-1.1, T3-2.2, T3-3.2, and T3-4.4) and b) processes governing heat transport and redistribution in the Atlantic Water boundary current in the north (T1-2.1). The A-TWAIN project has had moorings over the continental slope north-east of Svalbard for several years. The overarching goal of this project is to detect seasonality, variability and long-term trends in the Fram Strait Atlantic Water inflow branch entering the Arctic Ocean. Water samples for analysis of nutrients, POC, chl-a and carbon chemistry were collected at selected locations, mostly near key moorings (NLEG T2-1.1, T3-1.2)
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