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Science News News about the main scientific activities

The cruise season has started!

In the last week of May, a cruise was undertaken aboard the RV Kristine Bonnevie to test instrumentation related to RF-1 and RA-C of the Nansen Legacy. Ilker Fer (cruise leader), Zoe Koenig, Eivind Kolås from UiB and Martin Ludvigsen, Petter Norgren and Tore Mo-Bjørkelund from NTNU participated in the field work. The cruise aimed to test technology and sensors in protected, calm waters of a Norwegian fjord to identify an optimum solution and strategy for deployment in the Nansen Legacy research cruises.

In Sulafjord and Storfjord near Ålesund, a light autonomous underwater vehicle (LAUV, Harald) integrated with microstructure sensors, a remotely-controlled motorized surface vehicle ASV Jetyak, as well as an ascending vertical microstructure profiler in various configurations was tested. Additionally reference profiles were collected from the ship, of ocean microstructure, currents and hydrography. The Jetyak collected echo sounder data, while Harald sampled turbulence, CTD and chlorophyll data. The Jetyak was tested successfully as a communications relay between the operator and Harald, increasing the communication range at sea level from 150m to 500m.

Clockwise from right: Martin, Ilker, Helge and Tore inspecting the turbulence package installation on the AUV. Picture: Algot Peterson

From early August onwards, the Nansen Legacy will investigate the seasonal dynmaics of the northern Barents Sea ecosystem through four cross-disciplinary cruises, covering especially also the dark and less studied winter season. An additional cruise is allocated to service the oceanographic moorings north and east of Svalbard.

Nansen Legacy data infrastructure is up and running

In preparation for the new cruise season, RA-B has largely completed its work on standardizing gear and sample types; a prerequisite for the sound collection of cruise metadata at SIOS.

With the one-year-deadline for internal release of cruise data approaching, it is important to start thinking about publishing and sharing data, as outlined in the Nansen Legacy implementation plan. RA-B has over the last year been working hard on making the infrastructure for internal sharing of data available. Now an area for internal sharing and collaboration is up and running at NIRD. Currently this area only contains cruise data and calibrated CTD data, something that should be amended with other data. RA-B encourages all Nansen Legacy participants to upload their data there and utilise it for collaboration.

Access to NIRD is only for participants of the Nansen Legacy and can be obtained by filling out a short application located at https://www.metacenter.no/user/application/form/norstore/ with the project code "NS9530K". When working with NIRD, using graphical applications like WinSCP, or for the more advanced users, command line utilities like sftp, is recommended. See https://documentation.sigma2.no/storage/WinSCP.html for a tutorial on how to use NIRD.

Data uploaded to this area on NIRD will only be available for members of the Nansen Legacy. Publishing data in the Nansen Legacy, is facilitated through the three data centres (NMDC, NP and NIRD Archive). Help with NIRD or publishing can be obtained through your local data manager or by contacting the Nansen Legacy data manager at: data.nleg@unis.no.

Reference group meeting

The Nansen Legacy does not want to be an "island on its own", but seeks to share knowledge with a broad range of societal stakeholders. In May, the Nansen Legacy therefore invited its reference group for a one-day meeting. Nansen Legacy scientists Benjamin Planque (IMR), Malte Müller (MET), Raul Primicerio (UiT), Tor Eldevik (UiB), and Marit Reigstad (UiT) presented for the representatives of the reference group on-going research in the Nansen Legacy on climate research, weather forecast products, and the impact of climate change on the marine ecosystem of the Barents Sea. The Nansen Legacy agreed with the reference group on enhancing a mutual dialogue in the future through dedicated scenario workshops on the theme ‘The future Barents Sea, risks, mitigation and adaptation options’.

Nansen Legacy workshops

A major activity of the Nansen Legacy this spring were several workshops on dedicated scientific topics:

WS 1: Based on the AUV and physical oceanography data collected during the ocean process cruise in 2018, this workshop addressed how technology could further be used in oceanographic studies. Researchers from NTNU, UiT, UNIS and IMR attended the workshop.

WS 2: After two successful physical process cruises north of Svalbard in summer and autumn 2018, the oceanographic science teams at UiB and UNIS met for investigating oceanic fronts, conditions for upwelling, turbulent mixing, and upper ocean boundary layer exchanges.

WS 3: The first workshop on pollution studies in the Nansen Legacy was held with participants from UiO, NTNU and NPI. The workshop served for discussions on how food web changes during the year affect contaminant uptake, accumulation and distribution within organisms and through food webs.

WS 4: Extensive ecological experiments are planned for the upcoming seasonal cruises. All scientists involved from UiT, NTNU, APN, NPI, IMR, UiO and UNIS met therefore in order to synchronize experimental approaches and ensure cross-institutional cooperation on the experiments.

Planned workshops for fall 2019.

Nansen Legacy webinar series

There is so much exciting science going on in the project that it is time to share our knowledge with each other and people outside the project. Therefore, the Nansen Legacy launches an own webinar series open to all interested inside and outside the project from September this year.

Each webinar will gather two to three scientists from different disciplines, giving short presentations on their research under an overarching topic. The webinar series is intended to strengthen cross-disciplinary thinking and discussion, and to create a meeting arena for Nansen Legacy members in addition to the annual meeting and specific workshops. Webinars will be arranged every second months, and each webinar will take about 30 to 45 minutes. The webinars will be announced on Yammer and the project's webpage.

The first Nansen Legacy webinar will be held by Martin Ludvigsen (NTNU), Ilker Fer (UiB) and Geir Johnsen (NTNU) in September (date tbd).

(Photos successively from the top: Rudi J. M. Caeyers, Algot Peterson, Coulorbox.com, Trude Borch, Coulorbox.com)

If you have Nansen Legacy information to be included in the next newsletter, contact nansenlegacy_admin@uit.no

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