NERSC News Archive

Automatically detecting fast ice and stamukhi from space

Denis Demchev (OSIRS group) and Valeria Selyuzhenok (Zubrov State Oceanographic Institute, Russia) recently published a study introducing a fully-automated method to track fast ice and stamukhi in Arctic coastal zones. Their method is faster and more objective than manually-produced operational sea-ice charts and can provide near-real time information!


Fast ice and stamukhi in the Arctic

New role for Einar Ólason: Co-leader of Arctic ECRA

Einar Ólason takes over the co-lead of the collaborative programme "Arctic", one of four core activities of the European Climate Research Alliance (ECRA). He supersedes Lars Henrik Smedsrud (GFI/UiB, UNIS, Bjerknes Centre), who held that position since 2014.


What is the ECRA?

Researchers and students working together to collect observations of the ocean and Arctic sea ice

In June, our Acoustic and Oceanography Group organized a research cruise onboard the Norwegian Coast Guard Vessel KV Svalbard. Students and experienced scientists worked side by side to collect sea-ice and oceanographic data. Engagement and involvement are essential to train the new generation of scientists in conducting Arctic field work. 


Nansensenteret gratulerer Nobelprisvinner og venn Klaus Hasselmann

Nobelprisen i fysikk 2021 ble tildelt Klaus Hasselmann og Syukuro Manabe for deres bidrag til “for the physical modelling of Earth’s climate, quantifying variability and reliably predicting global warming” og Giorgio Parisi for “for the discovery of the interplay of disorder and fluctuations in physical systems from atomic to planetary scales” (referanse:

Nansen Center new Network Partner in the Norwegian-British Chamber of Commerce

The Nansen Center joins partnership with companies and organisations in the Norwegian-British Chamber of Commerce (NBCC).


Using reanalysis to detect eddies in the Mediterranean Sea

A new study was published this week in Frontiers in Earth Science, “Ocean Mesoscale Variability: A Case Study on the Mediterranean Sea From a Re-Analysis Perspective”. The study under the lead of Antonio Bonaduce includes Johnny A. Johannessen and Roshin P. Raj from NERSC, as well as colleagues from Italy and Germany.


What are mesoscale eddies?

A comprehensive Nansen Center contribution to the latest IPCC report

Works from 19 of our current researchers are used in the most recent IPCC report released on the 9th of August this year.


What NERSC will do onboard Statsraad Lehmkuhl during the One Ocean Expedition

Today, on August 20th, the tall ship Statsraad Lehmkuhl departs from Arendal and sets sail for the One Ocean Expedition. The Nansen Center will be part of this incredible journey.

Sixth Assessment Report WG1 contribution by IPCC published today!

Sebastian Mernild, our former director and now pro-rector and professor in climate change and glaciology at the University of Southern Denmark and in an adjunct position with us, is one of the Lead Authors contributing to the report!


Extreme weather events indicate climate change is here

Obituary for Yongqi Gao, 1965-2021

Our beloved and highly esteemed colleague and friend Yongqi Gao died peacefully at home Friday 23 July. He leaves behind his wife, son, and daughter.

A hidden gem article: How risky are oil spills along the Norwegian coast for fish?

Annette Samuelsen, research leader of our Ocean Modelling Group, published an article in 2019 that recently made it on the “Hidden gems” list of the ICES Journal of Marine Science! These articles are hand-picked by the Editor-in-Chief for being of high quality and special interest, but not having many citations yet.

Arctic sea ice melting leads to more intense monsoon rainfalls in India

A new publication in the Nature Partner Journal "Climate and Atmospheric Science" is co-authored by NERSC researcher Roshin P. Raj in the Ocean and Sea Ice Remote Sensing Group, as well as professor Ola M. Johannessen from the Nansen Scientific Society. The remaining co-authors are scientists from NCPOR (Goa, India).

Returning to the Nansen Center - Reflections from a newly appointed director

The Nansen Center is in these days moving 300 meters across Nygårdsparken and into the refurbished floors of the East Wing of the iconic Geophysical Institute building. For me the journey is even shorter, only a few steps across the courtyard from the West Wing, from where I have been coordinating the Bjerknes Centre for some time. With this journey, it feels like I am coming home – in several ways.

Brief status update from the Nansen Center

The first half of 2021 is soon behind us, and the Center operation has continued with a satisfactory trend from 2020.


Our Annual Report for 2020 is finalized, with several interesting stories about our research activities. You find it both digital on Flipsnack, and as pdf.

New Bjerknes Centre director: Kikki Kleiven

A new director has been appointed for the Bjerknes Centre for Climate Research, starting on the 1st of July.


The Nansen Center is one of the four partners in the Bjerknes Centre collaboration, along with the University of Bergen, NORCE, and the Institute for Marine Research.

Successful third Crash Course on Data Assimilation

In the beginning of June, NERSC researchers ran their third Data Assimilation summer school, together with NORCE colleagues, and this time digitally. Over 70 people participated and learned both about the theory of data assimilation and its applications!


Data Assimilation – what is that and what is it used for?

On improving ocean surface current investigations from space - Successful PhD defence today!

Artem Moiseev, PhD candidate in our OSIRS group, successfully defended his PhD today! His degree is being awarded by the University of Bergen. Congratulations, Artem!


Ocean surface currents as study object

Workshop on climate predictability, in September

This upcoming September, a workshop on climate predictability in the North Atlantic-Arctic sector is planned and the registration is open!



Are you working with climate predictability in the North Atlantic-Arctic sector? Then you should consider signing up for this workshop to share your findings and participate in discussions around predictability in that region.


New project at NERSC: The Scale-Aware Sea Ice Project (SASIP)

Last month a new project has started, with several of our NERSC researchers involved. The "Scale-Aware Sea Ice Project" (SASIP) will run for six years, with international partners in France, the US, the UK, Italy, and Mali.


How are sea level and jet stream related?

Our PhD candidate Fabio Mangini with the OSIRS group recently published his first paper! He worked on it together with Laurent Bertino (NERSC) and Jan Even Øie Nilsen (previously NERSC, now IMR), as well as other researchers from the Bjerknes Center and Sweden. They set out to investigate how sea level variability in the North Sea and the jet stream over the North Atlantic are related and have found interesting connections!

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