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Current Status of IOPAN Observational Activities in the Nordic Seas and North of Svalbard A

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Current Status of IOPAN Observational Activities in the Nordic Seas and North of Svalbard A SIOS Meeting November 19, 2020 Current status of IOPAN observational activities in the Nordic Seas and north of Svalbard A. Beszczynska-Möller, W. Walczowski, Agnieszka Strzelewicz Institute of Oceanology PAS, Sopot, Poland This work is licensed under a Creative Commons BY-NC 4.0 International License (https://creativecommons.org/licenses/by-nc/4.0/) Long-term large-scale Arctic monitoring program AREX 1987-ongoing: repeated sections and point moorings • Annually repeated field campaigns Arctic Experiments AREX take place every summer in June-August on board of the IOPAN RV Oceania and last approx. 80-90 days • 34 AREX expeditions in 1987-2020 • Measurement region includes the eastern Norwegian and Greenland seas, western Barents Sea, Fram Strait, southern Nansen Basin in the Arctic Ocean and West Spitsbergen fjords Long-term large-scale Arctic monitoring program AREX 1987-ongoing: repeated sections and point moorings Main aim is to observe the Atlantic water inflow towards the Arctic Ocean and into the Svalbard fjords and study its impact on sea ice and climate based on: • repeated summer hydrography with 10-15 sections since 1996 (CTD, continuous VM-ADCP recording and in the recent decade with LADCP profiling) • additional high resolution sections in the upper 300m layer with a towed CTD • year-long mooring deployments in the West Spitsbergen Current, north of Svalbard and on the western Spitsbergen shelf 6.0 Mean temperature Mean temperature of Atlantic water (T>0 4.0 1.5 2002 2003 2004 2005 2006 2002 in - 2016 (June 2016 - July) 2007 2008 2009 2010 2011 ° C S>34.92) 2012 2013 2014 2015 2016 Time series of mean AW temperature and salinity in 1996-2019 at sections K and N Atlantic water temperature and salinity Section N Section K Section K Normalized anomalies of Atlantic water temperature and salinity Section N Section K Time series of mean temperature of surface, intermediate and deep waters in 1997-2017 at sections K and N Water masses temperature Section N Section K Section K Argo floats deployments in the Greenland Sea since 2009 • 2-3 Argo floats deployed by IOPAN every year since 2009 in the Greenland and Norwegian seas during the AREX cruise • Activities under EuroArgo with the ArgoPoland program – mostly national funding • Data available in NRT via Coriolis (https://fleetmonitoring.euro-argo.eu/dashboard) Examples of the floats pathways https://www.iopan.pl/hydrodynamics/po/Argo/argo_floats.html Long-term large-scale Arctic monitoring program AREX 1987-ongoing: oceanographic measurements in Hornsund and Kongsfjorden High-resolution CTD section along the Hornsund axis and three cross-sections repeated every year since 2001 (red dots) 2013 2014 2015 2016 2017 2018 Temperature anomalies in 2013-2019 2019 (relative to the mean 2001-2019) along the Hornsund axis IOPAN moorings Tracing the Atlantic water flow north of Svalbard in 2018 Temperature INT Salinity INT Tempe- rature Temperature Y NB Salinity Salinity Y NB IOPAN moorings in the INTAROS (at 22°E) and A-TWAIN (at 31°E) arrays (southern Nansen Basin) A-TWAIN moorings by IOPAN since 2013 INTAROS moorings by IOPAN since 2017 INATROS North of Svalbard towards the deep Nansen Basin INTAROS mooring line at 22°E Deployed in 2018 from the Norwegian Coast Guard icebreaker KV Svalbard Complemented by a CTD section Six INTAROS partners: NERSC, IOPAN, UiB, CNRS-LOCEAN, AWI, NIVA CNRS31 IOPAS22 BPR11 IOPAS12 BGC11 CNRS12 CNRS22 INTAROS mooring line CTD station + mooring All moorings and CTD stations INTAROS deep ocean mooring 2019-2020 Deep ocean mooring deployed for one year in the Nansen Basin on September 5, 2019 during the CAATEX cruise on KV Svalbard AMAR PAR (FFI) pH/pCO2 sensors (UiB-GFI) GUEST... Nortek Sig250 for currents T/TD CTD/TDO LR-ADCP and sea ice sensors sensors for ocean (IOPAN) (IOPAN) (IOPAN) currents (NERSC) Plans for 2021 and future ➨ Continuation of the AREX monitoring program but the question arises about the spatial coverage and which sections are the priority to continue ➨ Including more BGC variables in the AREX monitoring measurements ➨ Continuation of Argo floats deployments with 2-3 floats per year, depending on the national funding for the Polish Roadmap for Research Infrastructures ➨ Continuation of mooring deployments north of Svalbard – under INTAROS and A-TWAIN - one mooring at the minimum ➨ Mooring(s) in Hornsund (collaboration of IGF) ➨ Work needed to make IOPAN data available in NRT or shortly after the cruise or mooring recovery (Argo data available in NRT via Coriolis) ➨ AREX metadata submitted to EMODnet Physics ➨ New development of the IOPAN data base with the mechanisms for data sharing available within the next few months.
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