Polar Acoustics and Oceanography

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EU invites the Nansen Center to negotiations on two prestigious Arctic projects

Two large projects proposals to the Horizon 2020 Blue Growth - Demonstrating an ocean of opportunities call, respectively coordinated by and with major participation from Nansen Center, have today been invited to negotiations with the European Commission. Prof. Stein Sandven coordinates the Integrated Arctic Observing system (INTAROS) project. Prof. Yongqi Gao is a key partner in the Blue-Action: Arctic Impact on Weather and Climate project coordinated by the Danish Meteorological Institute and Max-Planck Institute for Meteorology.

The soundscape in the Marginal Ice Zone

Youtube movie - UNDER-ICE acousticsThe soundscape in the Marginal Ice Zone (MIZ) is comprised of seismic airgun noise, ship cavitation noise, and natural background noise due to different geophysical processes in the MIZ. Cavitation noise from the research ice-breaker dominated the sound scape at times.

ONR-Acoustics: Under-ice Acoustic propagation

The impact of sea ice on acoustic propagation is one of the least understood in Arctic propagation, because it is a combined effect of reflection (ice thickness and material properties) and scattering from a highly variable and rough surface. 

The work in this project includes analysis of acoustic and oceanographic data collected in several field experiments as part of the WIFAR, ACOBAR, and UNDER-ICE projects (funded by EU and the Norwegian Research Council). Acoustic observations are analyzed and we use acoustic models (OASES and RAM) to understand the results. 

Project Details
Funding Agency: 
Office of Naval Research
Project Deputy Leader at NERSC: 
Hanne Sagen
Coordinating Institute: 
Nansen Environmental and Remote Sensing Center
Project Status: 
Completed

Espen Storheim

Area of Expertise: 
acoustics
Job Position: 
Researcher
Department: 
Polar and Environmental Research
Research Group: 
Polar Acoustics and Oceanography
E-mail: 
E-Mail Address: 
espenstorheim@gmail.com
Phone: 
40476990
Home Address
Street Address 1: 
Sæbøvegen 124
Post Code: 
5938
City: 
SÆBØVÅGEN
Country: 
Norway
Employment Start Date: 
2. November 2015

Polar Acoustics and Oceanography

Scientific Group Name: 
Polar Acoustics and Oceanography
Take a leading role in the development, implementation and scientific use of a Pan Arctic Ocean Observing System

Carry out fundamental acoustic research for applications within sea ice research, oceanography, environmental monitoring, underwater communication and geo-positioning.

Carry our fundamental oceanographic research for improved estimates of the heat, mass, and freshwater fluxes and storage in the sparsely sampled Arctic region by combining direct measurements with numerical models. Acoustic remote sensing provides one of the few ways to observe the abyssal ocean.

Publish: 
Public

Ocean Flagship: Ocean Flagship

The Ocean Flagship is established bringing together main partners involved in the long-term ocean observations around Svalbard. The project will initiate a new Svalbard Science Forum (SSF) flagship program.

The main goal of the proposed SSF Ocean Flagship is to increase scientific cooperation between all countries and institutions actively involved in the marine research in the Svalbard area. At present the individual elements of the ocean observing system in Fram Strait and the European Arctic are mostly project-related and therefore relatively dispersed and independent. Moreover, the information flow between different players in ocean observations is rather limited.

Project Details
Funding Agency: 
Research Council of Norway
Project Deputy Leader at NERSC: 
Torill Hamre
Coordinating Institute: 
Nansen Environmental and Remote Sensing Center
Project Status: 
Completed

UNDER-ICE: Arctic ocean under melting ice

UNDER-ICE is an interdisciplinary project involving physical oceanography, ocean acoustics, sea ice research and studies of biological production (net community primary production) in Fram Strait and northwards towards the Gakkel Ridge.

The project will focus on observational and modelling studies of water masses, fluxes and physical-biological processes in ice-covered areas and the marginal ice zone (MIZ). Innovative observing systems based on ocean acoustics, hovercraft and gliders will be applied to collect ocean and sea ice data in a series of field experiments from 2013 to 2016. The new data will be combined with existing data, including satellite data and state-of-the art numerical models to study processes of importance for the Arctic climate system.

Project Details
Funding Agency: 
Research Council of Norway
Project Deputy Leader at NERSC: 
Stein Sandven
Coordinating Institute: 
Nansen Environmental and Remote Sensing Center
Project Status: 
Completed

Lisbeth Iversen

Area of Expertise: 
other scientific field
Job Position: 
Adjunct Position
Department: 
GC Rieber Climate Institute
Research Group: 
Polar Acoustics and Oceanography
E-mail: 
E-Mail Address: 
lisbethivers@yahoo.no
Phone: 
92014606
Home Address
Street Address 1: 
Hegreveien 10
Post Code: 
4818
City: 
Færvik
Country: 
Norge
Employment Start Date: 
1. August 2013

ACOBAR II: Analysis and publication of results from the Fram Strait tomographic experiment.

The aim of the ACOBAR II is to facilitate for continued collaboration between and Nansen Environmental and Remote Sensing Center (NERSC) and Scripps Institution of Oceanography (SIO). 

The aim of  ACOBAR II is to facilitate for continued collaboration between and Nansen Environmental and Remote Sensing Center (NERSC) and Scripps Institution of Oceanography (SIO). This will result in a significant transfer of knowledge within acoustic data analysis, and  acoustic inversions  and assimilation of acoustic measurments into ocean models from SIO to NERSC. The collaboration will be implemented through mutual visits at the two institutions of key personnel within acoustics, oceanography, and ocean modelling.

Project Details
Funding Agency: 
Research Council of Norway
Coordinating Institute: 
Nansen Environmental and Remote Sensing Center
Project Status: 
Completed
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