Geir Pedersen
Curriculum Vitae
I have 20 years experience in underwater acoustics and marine observation platforms. I have been working with underwater acoustic method development for fisheries/zooplankton applications and environmental and ecosystem monitoring in general. Since 2009 I have also been working with development of and applications for alternative observation platforms (e.g. autonomous surface and underwater vehicles, gliders, subsea landers). My responsibilities now include work package management in SFI CRIMAC, project management for the Lofoten-Vesterålen Ocean Observatory and advice on environmental impact of underwater detonations.
Publications
Academic articles
2024
Uncrewed surface vehicles (USVs) as platforms for fisheries and plankton acoustics
ICES Journal of Marine Science
2024
Pulse duration, frequency band, and sweep direction effects on crosstalk in wideband backscattering measurements
Journal of the Acoustical Society of America
156
p. 391-404
2024
Broadband backscattering by Atlantic herring (Clupea harengus L.) differs when measured from a research vessel vs. a silent uncrewed surface vehicle
ICES Journal of Marine Science
2023
Bioglider: an integrated glider solution for enhancing environmental knowledge
IEEE Journal of Oceanic Engineering
OCEANS2023GulfCoast
2023
Model-informed classification of broadband acoustic backscatter from zooplankton in an in situ mesocosm
ICES Journal of Marine Science
2023
Model-informed classification of broadband acoustic backscatter from zooplankton in an in situ mesocosm
ICES Journal of Marine Science
2023
Quantitative processing of broadband data as implemented in a scientific split-beam echosounder
Methods in Ecology and Evolution
2023
Model-informed classification of broadband acoustic backscatter from zooplankton in an in situ mesocosm
ICES Journal of Marine Science
2022
Mid-summer vertical behavior of a high-latitude oceanic zooplankton community
Journal of Marine Systems
230
2022
Temporal patterns in the soundscape of a Norwegian gateway to the Arctic
Scientific Reports
12
2022
Taxonomical classification of reef fish with broadband backscattering models and machine learning approaches
Journal of the Acoustical Society of America
152
p. 1020-1034
2022
Changes in humpback whale song structure and complexity reveal a rapid evolution on a feeding ground in Northern Norway
Frontiers in Marine Science
9
2022
Inverse method applied to autonomous broadband hydroacoustic survey detects higher densities of zooplankton in near-surface aggregations than vessel-based net survey
Canadian Journal of Fisheries and Aquatic Sciences
80
p. 451-467
2021
Autonomous Surface and Underwater Vehicles as Effective Ecosystem Monitoring and Research Platforms in the Arctic—The Glider Project
Sensors
2021
A model for the fate of carbon dioxide from a simulated carbon storage seep
International Journal of Greenhouse Gas Control
107
p. 1-8
2021
Autonomous Surface and Underwater Vehicles as Effective Ecosystem Monitoring and Research Platforms in the Arctic - The Glider Project
Sensors
21
p. 6752
2021
Mesopelagic flesh shear viscosity estimation from in situ broadband backscattering measurements by a viscous-elastic model inversion
ICES Journal of Marine Science
78
p. 3147-3161
2021
Humpback Whale (Megaptera novaeangliae) Song on a Subarctic Feeding Ground
Frontiers in Marine Science
8
p. 1-7
2021
A model for the fate of carbon dioxide from a simulated carbon storage seep
International Journal of Greenhouse Gas Control
107
p. 1-8
2021
A model for the fate of carbon dioxide from a simulated carbon storage seep
Int. J. Greenh. Gas Control
7
p. 8
2020
In situ calibration of observatory broadband echosounders
ICES Journal of Marine Science
77
p. 2954-2959
2020
Examining the relationship between morphological variation and modeled broadband scattering responses of reef-associated fishes from the Southeast United States
Fisheries Research
228:105590
p. 1-12
2020
Measurements of underwater noise radiated by commercial ships at a cabled ocean observatory
Marine Pollution Bulletin
153
2020
Long-Term Statistics of Observed Bubble Depth Versus Modeled Wave Dissipation
Journal of Geophysical Research (JGR): Space Physics
125
2020
Arctic Marine Data Collection Using Oceanic Gliders: Providing Ecological Context to Cetacean Vocalizations
Frontiers in Marine Science
7
2020
Long term acoustic time series of the Lofoten–Vesterålen ocean observatory
Journal of the Acoustical Society of America
148
2019
Broadband acoustic scattering from oblate hydrocarbon droplets
Journal of the Acoustical Society of America
146
p. 1176-1188
2019
Acoustic determination of CO2 bubble rise heights during a controlled release experiment
Journal of the Acoustical Society of America
146
2019
Underwater noise from wind at the high north LoVe ocean observatory
p. 359-366
2019
Acoustic characterization of an artificial CO2 seep using split-beam echo sounders
5
p. 115-122
2016
Relative acoustic frequency response of induced methane, carbon dioxide and air gas bubble plumes, observed laterally.
Journal of the Acoustical Society of America
140
p. 2902-2912
2016
Simulation of acoustic backscattering from bubbles and droplets under different shape regimes with implications for underwater detection of leakages using active acoustic sensors.
Journal of the Acoustical Society of America
140
2016
Modeling target strength of individual herring (Clupea harengus) at any aspect as a function of pressure and frequency
Journal of the Acoustical Society of America
140
2014
Active acoustic detection of subsea oil and gas leaks; model prediction and measurements
Journal of the Acoustical Society of America
135
2013
Accuracy of the Kirchhoff-approximation and Kirchhoff-ray-mode fish swimbladder acoustic scattering models
PLOS ONE
8
2013
The effect of depth on the target of a humpback whale(Megaptera novaengliae)
Journal of the Acoustical Society of America
2011
A revised target strength-length estimate for blue whiting (Micromesistius poutassou): implications for biomass estimates
ICES Journal of Marine Science
68
p. 2222-2228
2011
Petroleum technology supports fisheries management
4
2009
Waves Generated by a Pressure Disturbance Moving in a Channel with a Variable Cross-Sectional Topography
Journal of waterway, port, coastal, and ocean engineering
135
p. 120-123
2009
Inferring the acoustic dead-zone volume by split-beam echo sounder with narrow-beam transducer on a noninertial platform
Journal of the Acoustical Society of America
125
p. 698-705
2009
Lateral-aspect, target-strength measurements of in situ herring (Clupea harengus)
ICES Journal of Marine Science
66
p. 1191-1196
2009
The relative frequency response derived from individually separated targets of northeast Arctic cod (Gadus morhua), saithe (Pollachius virens), and Norway pout (Trisopterus esmarkii)
ICES Journal of Marine Science
66
p. 1149-1154
Other journal contributions
2020
Long term acoustic time series of the Lofoten–Vesterålen ocean observatory
Journal of the Acoustical Society of America
148
2019
The Lofoten-Vesterålen Ocean Observatory—A cabled infrastructure for operational acoustical oceanography
Journal of the Acoustical Society of America
146
Scientific lectures
2024
Active acoustics on a glider : scientific and technological challenges
2024
Acoustic interpretation for Calanus in real time and post processing methods
2024
Advancing Fisheries Acoustics: The Role of CRIMAC in Expanding Applications through Innovative Technologies
2024
Projects at IMR relying on large scale analysis of acoustic data
2024
Identifying size and behavior of Mueller’s Pearlside (Maurolicus muelleri) by combining measured broadband frequency responses with backscattering models and in-trawl observations
2024
Exploring the impact of Fourier window lengthon target strength frequency response estimation in broadband echosounders
2024
Effects of pulse duration on nonlinear crosstalk in wideband backscattering measurements
2024
Behaviour and platform dependent broadband backscattering by physostome fish (Clupea harengus L.) revisited
2024
Testing acoustic data quality and performance on Sounder USV
2023
Broadband underwater acoustic signal processing
2023
Model-informed classification of broadband acoustic backscattering from zooplankton in an in situ mesocosm
2023
Investigation of broadband acoustic to resolve and identify nearby targets using different pulse durations
2023
Investigation of broadband acoustic to resolve and identify nearby targets using different pulse durations
2023
Investigation of broadband acoustic to resolve and identify nearby targets using different pulse durations
2023
Monitoring salmon with broad band echo sounders – investigate acoustic parameters as indicators for welfare
2023
Behaviour dependent broadband backscattering by physostomous fish (Clupea harengus L.)
2023
Resolving and characterizing nearby targets by means of broadband acoustics
2023
Resolving and characterizing nearby targets by means of broadband acoustics
2022
Using an autonomous surface vehicle and hydroacoustics to survey epipelagic organisms at high-latitudes
2022
Comparison of sampling strategies for epipelagic sound scattering layers at high latitudes
2022
Application of backscattering models for targetstrength measurement of T. mediterraneus and S. colias in the Mediterranean Sea
2022
Gas-baldder elongation estimation of mesopelagic organisms from wideband target strength frequency response
2022
Monitoring salmon with broad band echo sounders – investigate acoustic parameters as indicators for welfare
2022
Quantitative processing of broadband data as implemented in a scientific split-beam echosounder
2022
Study of the acoustic reflectivity of pelagic fishes in the Mediterranean Sea: from ex-situ experiments to backscattering model
2021
CRIMAC - Center for Research-based Innovation in Marine Acoustic Abundance Estimation and Backscatter Classification
2019
Simulations of acoustic transmission loss of Fin whale calls reaching the LoVe Ocean Observatory
2019
Integrated Monitoring Approach for Offshore Geological CO2 Storage
2019
A Data Management Platform for Data Harvesting and Analysis from Autonomous Marine Measurement Platforms
2019
Autonomous surface vehicles for persistent acoustic monitoring of zooplankton in a highly productive shelf area
2019
Acoustic characterization of an artificial CO2 seep using split-beam echo sounders
2019
Observer/AMAR G4 Passive Acoustic Monitoring System for Autonomous Maritime Observation
2019
Underwater noise from wind at the high north LoVe ocean observatory
2016
Impact of long distance propagated seismic signals on the soundscape in the Fram Strait. Use ACOBAR data and PE modeling
2015
Efficient BEM for acoustic scattering with application to fish
2015
Acoustic detection and of underwater gas and oil plumes: Effective medium modelling of backscattering by bubble and droplet plumes.
2015
Advances in the use of active acoustics for detection and conservation of cetaceans.
2015
Modelling (mean) target strength of individual herring (Clupea harengus) at any aspect as a function of pressure
2012
A review of possible mitigation measures for reducing mortality in purse-seine fisheries
2012
A review of possible mitigation measures for reducing mortality in purse-seine fisheries
Poster
2023
Classifying fish with broadband acoustics; behaviour and platform dependent broadband backscattering by physostomous fish (Clupea harengus L.). From Echosounders to the Cloud: Transforming Acoustic Data to Information.
2023
Target spectra discrimination of three Arctic species
2023
Centre for research based innovation in marine acoustic abundance estimation and backscatter classification (CRIMAC)
2020
Autonomous surface vehicles for (near real-time) monitoring of marine resources in the Antarctic
2019
Autonomous monitoring of krill in the Antarctic
Reports and dissertations
2024
Survey report for CRIMAC SFI 2023
Toktrapport
2023
Havforskningsinstituttets rådgivning for menneskeskapt støy i havet - Kunnskapsgrunnlag, vurderinger og råd for 2024
Rapport fra havforskningen
2023
The One Ocean Expedition: Science and Sailing for the Ocean We Want
Rapport fra havforskningen
2023
Cruise report Hywind Tampen 13 to 28 March 2023 - Cruise no. 2023001004 G.O. Sars
Toktrapport
2023
CRIMAC cruise report: Development of acoustic and optic methods for underwater target calssification - G.O. Sars 22.11 - 03.12 2022
2022
The application of CW and FM sonar technology to detect a decrease in air in the swim bladder of Atlantic salmon, measurements and modeling. Master thesis
2022
Simulation-based methods of sphere selection for calibration of broadband echosounders in fisheries acoustics. Master thesis
2022
Havforskningsinsituttets rådgivning for menneskeskapt støy i havet - Kunnskapsgrunnlag, vurderinger og råd for 2022
2022
Risiko for skade på laksefisk i omkringliggende oppdrettsanlegg ved etablering av undervanns- skytefelt på Korsnes Fort. FFI-RAPPORT 22/00814
2022
Does seismic have an effect on zooplankton? - Field study at Ekofisk with RV Kristine Bonnevie
2022
CRIMAC - Annual Report 2021
2022
The application of CW and FM sonar technology to detect a decrease in air in the swim bladder of Atlantic salmon, measurements and modeling
2022
Simulation-based methods of sphere selection for calibration of broadband echosounders in fisheries acoustics
2021
CRIMAC - Annual Report 2020
2021
Fisheries acoustics and Acoustic Target Classification - Report from the COGMAR/CRIMAC workshop on machine learning methods in fisheries acoustics
2021
CRIMAC cruise report 2020116
2018
Simulations of acoustic transmission loss of Fin whale calls reaching the LoVe Ocean Observatory. Master thesis
2018
Simulations of acoustic transmission loss of Fin whale calls reaching the LoVe Ocean Observatory
2012
Instrumentering for trenging i not. Forstudie
2012
Instrumentering for trenging i not. Forstudie
2007
Methodology for in situ target strength measurement of fish
Net reports
Net reports
- Survey report for CRIMAC SFI 2023
- Havforskningsinstituttets rådgivning for menneskeskapt støy i havet
- The One Ocean Expedition: Science and Sailing for the Ocean We Want
- Cruise report Hywind Tampen 13 to 28 March 2023
- CRIMAC cruise report: Development of acoustic and optic methods for underwater target calssification
- Havforskningsinstituttets rådgivning for menneskeskapt støy i havet
- Does seismic have an effect on zooplankton?
- Havforskningsinsituttets rådgivning for menneskeskapt støy i havet
- Fiskeriakustikk og akustisk målklassifisering
News
News
- (24.08.2022) Data collection is up and running again
- (26.11.2021) Ocean Observatory: The missing cable has been found
- (05.11.2021) Ocean Observatory temporarily out of service
- (10.06.2021) Hear humpback whales singing outside Lofoten
- (25.02.2021) New manned and unmanned vessels to strengthen Norway's maritime surveillance
- (25.08.2020) Deep insight into the oceans off Vesterålen
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