NERSC News Archive

Cleaning up satellite images to make marine activities in the Arctic safer

People have been using the Arctic Ocean for over a century, mainly for shipping goods between the Atlantic and the Pacific Oceans. The northern passages come with dangers though – sea ice poses a significant threat to shipping and other marine activities. In the past decades, technological advances have made it safer to cross these waters, but the ocean and sea-ice conditions in the Arctic remain challenging. A recent study led by Anton Korosov at the Nansen Center is contributing to increase safe navigation in the Arctic.

Making climate models more accurate by improving their tuning

Earth’s climate is a very complex system, and it is not easy to understand with all its components – the main ones being ocean, land, atmosphere, and sea ice. Nevertheless, scientists have been trying for decades to predict future changes in climate with numerical models. These models keep getting better, but all components have systematic errors to some degree. Decreasing errors and thereby predicting the future climate more reliably will benefit society by allowing us to better adapt to climate change. 

 

An Advanced Ocean Synergy Training Course onboard Statsraad Lehmkuhl

ADVANCED OCEAN SYNERGY TRAINING COURSE ONBOARD STATSRAAD LEHMKUHL

Jointly offered by the Nansen Center and the European Space Agency

3-13 January 2023 - From Maputo to Cape Town!


The budget is almost closed: The individual contributors to global sea-level rise match-up

A simple sum of all the contributors to sea level rise reinforces confidence in Earth observation data

 

Commemoration of the 15th Anniversary of Atmospheric and Oceanic Science Letters

The establishment of the Nansen-Zhu International Research Center (NZC) in 2003 at the Institute of Atmospheric Physis, Chinese Academy of Sciences in Beijing has significantly contributed to climate research over almost two decades.

Predicting when and where unusually warm water is travelling from the Gulf Stream to the Arctic

About every 14 years, a significant temperature change is observed in the ocean between Greenland and Svalbard. Why, you wonder? Well, the Gulf Stream transports warm water northwards and on a regular basis, the water is even warmer and saltier than normally. These variations are regular, but can we predict these changes reliably? 

The Nobel Peace prize laureate Archbishop Desmond Tutu died at age of 90.

We have received the sad news that Archbishop Desmond Tutu, the Nobel Peace prize laureate has died at age of 90 (front photo - courtecy Taarifa, October 13 - 2020). A man of extraordinary intellect, integrity and invincibility has passed away.

Can we predict what our climate might be like in the near future?

We can predict the weather about 10 days ahead of time, and climate projections look at how the climate will look like a hundred years from now. In between, we find a new field of science: climate prediction. A new publication describes how good our Norwegian Climate Prediction Model is at predicting the climate for our near future.

The Nansen Center - a brief look back at 35 forward-looking years

Inspired by Fridtjof Nansen's lifelong forward-looking efforts for research, exploration, diplomacy, and humanitarian work, the Nansen Environmental and Remote Sensing Center was established on the 28th of November 1986. The Center aimed to use new measurements from ships, aircraft, satellites, and computer models to obtain new knowledge about the ocean and sea ice. Today, 35 years later, this is still extremely relevant. The few tools that were available back then were new and under constant testing and development.

Why a 1 square km datapoint is better than a 900 square km one

Changes in climate have wide-reaching implications for life on Earth. By looking at the past climate we can understand ongoing processes better. But global datasets covering the past climate have too low resolutions to be useful for small-scale investigations like crop yield modelling – until now!

 

Nansensenteret – et kort tilbakeblikk på 35 framoverskuende år

Inspirert av Fridtjof Nansens framoverskuende innsats for forskning, utforskning, diplomati og humanitært arbeid, ble Nansen senter for miljø og fjernmåling etablert den 28. november 1986. Senteret ville bruke nye målinger fra skip, fly og satellitter og modeller for å etablere ny kunnskap om havet og sjøisen. I dag, 35 år senere, er dette fortsatt høyst relevant. Verktøyene som den gang var få, nye og under stadig utprøving og utvikling, er nå i daglig bruk og med langt mer nøyaktighet og regnekraft enn det som var mulig i 1986.

Nansen Scientific Society 15 years

The Nansen Scientific Society (NANSI) was founded as an ideal independent foundation under the slogan “Knowledge without borders”. During these 15 years 52 students have been supported with educational or mobility grants, 11 research schools have been co-funded and the overall activities have resulted in 60 scientific publications. The Nansen Center congratulates NANSI with its great achievements for the first 15 years.

 

The IPCC climate reports' cousin: The CMEMS Ocean State Report!

The IPCC reports are well known and focus on the Earth's climate with all its facets, but have you heard about the ocean equivalent? Changes in the ocean have wide-reaching implications for the climate and life on Earth, so monitoring these changes and being able to make predictions of future changes is crucial.

Smart Ocean 2021 survey cruise with KV Tor

11 students and researchers from NERSC and the University of Bergen participated in a 3-day cruise to Bjørnafjorden south of Bergen and the surrounding area, with the Norwegian Coast Guard vessel KV Tor. The cruise was a part of the SFI Smart Ocean project preparing for a mesoscale observing system using acoustic technology.

 

A summary of improvements to CMEMS' Arctic Monitoring Forecasting Center

Outputs by the Arctic Monitoring Forecasting Center are being used for Norwegian emergency response tools, among many other societally relevant applications. Laurent Bertino (DA research leader) and colleagues from MET Norway and the Institute of Marine Research summarized the changes and improvements made to the forecasting center’s products since it was established in 2015.

21 years of algae blooms observed from space

Edson Silva just published his first article as part of his institutional PhD project - congratulations! Together with five other co-authors from NERSC and one from the University of Bergen (UiB), he studied the annual cycle of phytoplankton/algae blooms in the Nordic Seas by utilizing satellite data from 2000-2020.

What is phytoplankton?

Wind of (climate) change: More frequent extreme winds over Europe in our future

Stephen Outten and a colleague from NORCE recently published a study on extreme winds over Europe for the remainder of this century, affecting more business sectors than you would think.

Marine sediments can tell us about climate change in eastern Africa 2 million years ago

A new publication in Nature shows that a shift in air circulation is responsible for the eastern African climate having changed to dry conditions about two million years ago. The authors studied a marine core to prove their hypothesis. Björn Backeberg is a co-author – he has an adjunct position with NERSC and is affiliated with Deltares in the Netherlands and the Nansen-Tutu Centre for Marine Environmental Research in South Africa.

Monsoon rainfall in India – How well do reanalyses compare to real-world data?

NERSC researcher Tarkeshwar Singh (CDP group) recently published an article with colleagues from India. They investigated the performance of three high-resolution atmospheric reanalyses over the Indian region by comparing the rainfall data with focus on the extreme events.

 

Monsoon rainfall in India – reasons and implications

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

Syndicate content