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Hu, S., Sagen, H., Storheim, E., Chen, W. & Yin, J. Using ice-ocean environment from GECCO reanalysis into Bellhop to better understand sound propagation in the Fram Strait. Proceedings of Meetings on Acoustics (POMA) 4, (2021).
Geyer, F., Sagen, H., Cornuelle, B.D., Mazloff, M. & Vazquez, H.J. Using a regional ocean model to understand the structure and variability of acoustic arrivals in Fram Strait. Journal of the Acoustical Society of America 147, (2020).
Haugen, S.A., et al. Use of acoustic Travel Times for ocean model validation, and assimilation. (2010). Download: Poster-acoustics-SveinAH.pdf (1.38 MB)
Stallemo, A. Upper-ocean hydrography in the Eurasian Basin and its implication on sound speed. (2022).at <https://hdl.handle.net/11250/3014836> Abstract
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Tjøtta, J.N., Sagen, H. & Tjøtta, S. Transmission of a sound beam across a two-fluid interface: Numerical results and asymptotic expressions. Journal Acoustical Society of America 85, 24-38 (1989).
Bertino, L., Lisæter, K.A. & Sagen, H. The TOPAZ Arctic monitoring and prediction system. Proceedings of the DAMOCLES workshop: Current Problems for operational short range weather, ocean and sea ice forecasting in the Arctic - a user perspective. The Polar Environmental Centre, Tromsø, Norway (2006).
Bertino, L., Hansen, C., Lisæter, K.A., Sagen, H. & Sandven, S. The TOPAZ and the Fram Strait models, including modeled data, provided on required schedule as input to ongoing field operations, especially to the acoustic modelling and inversions taking place in WP 3.1. DAMOCLES deliverable D4.1-1. DAMOCLES deliverable D4.1-1. (2006).
Skarsoulis, E., et al. Tomographic inversions from the Fram Strait 2008-9 experiment. European Conference on Underwater Acoustics (ECUA) (2010). Abstract  Download: FS_paper_ECUA_2010.pdf (695.49 KB)
Sagen, H., et al. Time series of temperature in Fram Strait determined from the 2008-2009 DAMOCLES acoustic tomography measurements and an ocean model. Journal of Geophysical Research (JGR): Oceans 121, (2016).
Sagen, H. & Dushaw, B. Time series of temperature in Fram Strait determined from the 2008–2009 DAMOCLES acoustic tomography measurements and an ocean model. Journal of Geophysical Research - Oceans 121, (2016). Download: sagen_et_al-2016-time_seried_of_temperature_in_fram_strait_determined_from_the_2008-2009_damocles_acoustic_tomography_measurements_and_an_ocean_model.pdf (7.5 MB)
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Abrahamsen, J., et al. Specification of the Fram Strait acoustic tomography array. DAMOCLES deliverable D3.1-3. DAMOCLES deliverable D3.1-3. (2006).
Johannessen, O.M., et al. Spatial variation in ambient sound level within ice edge eddies. Natural Physical Sources of Underwater Sound 563-571 (1993).
Geyer, F., et al. Soundscape components in the Marginal Ice Zone: identification and quantification. The Acoustic and environmental variability, fluctuations and coherence (2016).doi:10.1121/1.4945989
Yamakawa, A., Sagen, H., Babiker, M., Worcester, P.F. & Furevik, B.R. Soundscape Characterization and the Impact of Environmental Factors in the Central Part of the Fram Strait. The Acoustic and environmental variability, fluctuations and coherence (2016).
Dushaw, B., Sagen, H. & Beszczynska-Møller, A. Sound speed as a proxy variable to temperature in Fram Strait. Journal of the Acoustical Society of America 140, (2016). Download: dushaw_etal_2016_sound_speed_as_a_proxy_variable_to_temperature_in_fram_strait.pdf (1.22 MB)
Johannessen, O.M., Sandven, S. & Sagen, H. SIZEX, Seasonal Ice Zone Experiment ERS-1.Pre- and postlaunch Experiments in the Barents Sea, Fram Strait and Greenland Sea. (1990).
Johannessen, O.M., Sagen, H. & Sandven, S. SIZEX 92 Acoustical Experiment. Report from the Seasonal Ice Zone Experiment in the Barents Sea in March 1992, NERSC Technical Report no. 68 (1993).
Johannessen, O.M., et al. SIZEX 89: SAR Quick-look Report. The Barents Sea. (1990).
Sandven, S., et al. SITHOS: Report and data analysis from the Field experiments in March-April 2003. (2006).
Tollefsen, D. & Sagen, H. Seismic exploration noise reduction in the marginal ice zone. Journal of the Acoustical Society of America 136, (2014). Download: tollefsen_sagen_2014_seismic_exploration_noice_reduction_in_the_marginal_ice_zone.pdf (870.34 KB)
Sandven, S., et al. Sea Ice thickness Observing System: Report and data analysis on the 2004 and 2005 experiments. (2006).
Sandven, S., et al. Sea Ice Thickness Observation System - SITHOS. 55 (2004).
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Dushaw, B. & Sagen, H. The Role of Simulated Small-Scale Ocean Variability in Inverse Computations for Ocean Acoustic Tomography. Journal of the Acoustical Society of America 142, (2017).
Sandven, S., et al. Review of air-ice-ocean processes in the Marginal Ice Zone of importance for offshore activities in the Barents Sea region. (2007).
Sagen, H., Haugen, S.A. & Sandven, S. Results of assimilation of acoustic measurements into TOPAZ-3. DAMOCLES deliverable D4.2-05 (2010). Download: 
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