Arctic

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Global warming transforms the Arctic cloud cover

The Arctic is one of the cloudiest regions on the Earth. White carpet of clouds typically covers the Arctic during three quarters of year. In summertime, clouds reflect sunlight helping to keep the Arctic cool. In winter time, they capture and backscatter heat making the Arctic warmer than it could be under a clear sky. [img_assist|nid=93550|title=|desc=Figure 1. Historical variations since 1930 of the observed convective cloud fraction at the Wrangel Island station (redrawn from Chernokulsky and Esau, 2019).

Key indicators of Arctic climate change: 1971–2017

Key observational indicators of climate change in the Arctic, most spanning a 47 year period (1971–2017) demonstrate fundamental changes among nine key elements of the Arctic system. A new study finds that, coherent with increasing air temperature, there is an intensification of the hydrological cycle, evident from increases in humidity, precipitation, river discharge, glacier equilibrium line altitude and land ice wastage. Director at the Nansen Center, Sebastian H.

Towards an advanced observation system for the marine Arctic

The Arctic marine climate system is changing rapidly, which is seen in the warming of the ocean and atmosphere, decline of sea ice cover, increase in river discharge, acidification of the ocean, and changes in marine ecosystems. Socio-economic activities in the coastal and marine Arctic are simultaneously changing. PEEX ("Pan-Eurasian Experiment”) is a research infrastructure program focused on climate and environmental changes in the Northern Eurasian arctic and boreal regions.

GCloudl: Arctic clouds (Research Collaboration)

Global warming is rapidly transforming Arctic clouds. This collaboration documents the changes.

The final report for the Norwegian Research Council reserach exchange project on the Arctic Clouds [pdf]

Data sets [download] (Data set is free for noncommercial use).

Project Details
Coordinating Institute: 
Nansen Environmental and Remote Sensing Center
Project Status: 
Completed

ARCONOR: Arctic cooperation between Norway, Russia, India, China and US in satellite Earth observation and Education

Research and higher education related to sea ice, environment, climate change, and operational conditions in the Arctic Ocean focusing on the Northern Sea Route.

The Arctic Ocean has obtained increased international attention due to changing sea ice conditions facilitating the accessibility, as well as the exploitation of its natural resources (minerals, fisheries), energy (oil, gas), and new sailing routes that are creating new challenges and opportunities. Although transportation into, within and/or through the Arctic waters has been on the agenda for several decades, the Arctic is not yet an arena for large-scale international marine transportation.

Project Details
Project Deputy Leader at NERSC: 
Stein Sandven
Coordinating Institute: 
Nansen Environmental and Remote Sensing Center
Project Status: 
Ongoing

SONARC: Development of sea ice monitoring and forecasting system to support safe operations and navigation in Arctic Seas

SONARC is a NORRUSS project contributing to research cooperation between Norway and Russia with focus on satellite technology for safe navigation and maritime operations in the Arctic. SONARC was running from April 2015 to November 2018

The main objective of SONARC is to develop a sea ice monitoring and forecasting system to support safe operations and navigation in Arctic Seas. SONARC has exploited Synthetic Aperture Radar (SAR) data from satellites as a major component of this system. From 2015 Sentinel-1 has been the main provider of SAR data, deliverig data every day in near realtime for monitoring of sea ice and other environmental parameters.

Project Details
Project Deputy Leader at NERSC: 
Lasse H. Pettersson
Coordinating Institute: 
Nansen Environmental and Remote Sensing Center
Project Status: 
Completed

EmblA: Ensemble-based data assimilation for environmental monitoring and prediction

EmblA is the Nordic Centre of Excellence for ensemble-based data assimilation (DA). It supports Nordic users of DA methods with instruction and training, state-of-the-art open-source codes, and works for R&D in several applications.

Our environment is undergoing major anthropogenic and natural changes that we need to understand, attribute and predict. To be able to use complex 3-dimensional models of our environment to generate reliable predic- tions with documented accuracy is therefore a major challenge for e-Sciences.

Project Details
Funding Agency: 
NordForsk
Project Deputy Leader at NERSC: 
Laurent Bertino
Coordinating Institute: 
Nansen Environmental and Remote Sensing Center
Project Status: 
Ongoing
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