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Bilde av Johnsen, Harald
Bilde av Johnsen, Harald
Department of Physics and Technology hjo040@post.uit.no Tromsø

Harald Johnsen

Adjunct Professor / Earth Observation

  • Anis Elyouncha, Leif E. B. Eriksson, Harald Johnsen :
    Direct Comparison of Sea Surface Velocity Estimated From Sentinel-1 and TanDEM-X SAR Data
    IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 2022 FULLTEKST / DOI
  • Henning Heiberg-Andersen, Heidi Hindberg, Jørn Havås Mæland, Harald Johnsen, Torleif Lothe, Leonid Vasilyev :
    Comparison of Simulated Offshore Wind Farm Wakes and SAR Images
    International Journal of Offshore and Polar Engineering 2022 FULLTEKST / DOI
  • Artem Moiseev, Johnny Andre Johannessen, Harald Johnsen :
    Towards Retrieving Reliable Ocean Surface Currents in the Coastal Zone From the Sentinel-1 Doppler Shift Observations
    Journal of Geophysical Research (JGR): Oceans 05. May 2022 DOI
  • Mathias Tollinger, Rune Graversen, Harald Johnsen :
    High-resolution polar low winds obtained from unsupervised sar wind retrieval
    Remote Sensing 2021 ARKIV / DOI
  • Artem Moiseev, Harald Johnsen, Morten Wergeland Hansen, Johnny Andre Johannessen :
    Evaluation of Radial Ocean Surface Currents Derived From Sentinel-1 IW Doppler Shift Using Coastal Radar and Lagrangian Surface Drifter Observations
    Journal of Geophysical Research (JGR): Space Physics 2020 DOI
  • Artem Moiseev, Harald Johnsen, Johnny Andre Johannessen, Fabrice Collard, Gilles Guitton :
    On removal of sea state contribution to Sentinel-1 Doppler shift for retrieving reliable ocean surface current
    Journal of Geophysical Research (JGR): Oceans 26. August 2020 DOI
  • Fabrice Ardhuin, Peter Brandt, Lucile Gaultier, Craig James Donlon, Alessandro Battaglia, Francois Boy et al.:
    SKIM, a Candidate Satellite Mission Exploring Global Ocean Currents and Waves
    Frontiers in Marine Science 2019 ARKIV / DOI
  • Dennis Monteban, Raed Lubbad, Harald Johnsen :
    Sentinel-1 sar observations of peak wavelength and dominant wave direction in the marginal ice zone of the barents sea
    Proceedings - International Conference on Port and Ocean Engineering under Arctic Conditions 2019 ARKIV
  • Harald Johnsen, Geir Engen, Vegard Nilsen :
    A Novel Approach to SAR Ocean Wind Retrieval
    IEEE Transactions on Geoscience and Remote Sensing 2019 DOI
  • Dennis Monteban, Harald Johnsen, Raed Lubbad :
    Spatiotemporal observations of wave dispersion within sea ice using Sentinel-1 SAR TOPS mode
    Journal of Geophysical Research (JGR): Oceans 2019 DOI
  • Christine Gommenginger, Bertrand Chapron, Andy Hogg, Christian Buckingham, Baylor Fox-Kemper, Leif A Eriksson et al.:
    SEASTAR: A Mission to Study Ocean Submesoscale Dynamics and Small-Scale Atmosphere-Ocean Processes in Coastal, Shelf and Polar Seas
    Frontiers in Marine Science 2019 DOI
  • Morten Wergeland Hansen, Harald Johnsen, Jeong-Won Park, Geir Engen :
    A new look at Envisat ASAR range Doppler shift retrieval with the aim of reprocessing ten years of level-0 data
    VDE Verlag GmbH 2018
  • Thomas Kræmer, Harald Johnsen, Camilla Brekke, Geir Engen :
    Comparing SAR based short time-lag cross-correlation and Doppler derived sea ice drift velocities
    IEEE Transactions on Geoscience and Remote Sensing 2017 ARKIV / DOI
  • Said Faozi, Harald Johnsen, Frédéric Nouguier, Bertrand Chapron, Geir Engen :
    Onto a skewness approach to the generalized curvature ocean surface scattering model
    IEEE Transactions on Geoscience and Remote Sensing 2017 DOI
  • Valentina Boccia, Erik De Witte, Josep Roselló, Michel Tossaint, Craig J. Donlon, Klaus. Scipal et al.:
    StereoSAR: A multi-static SAR mission concept to enhance Sentinel-1 capabilities for measuring ocean dynamics
    Proceedings of SPIE, the International Society for Optical Engineering 2017 DOI
  • Harald Johnsen, Vegard Nilsen, Geir Engen, Alexis A. Mouche, Fabrice Collard :
    Ocean Doppler anomaly and ocean surface current from Sentinel 1 tops mode.
    IEEE International Geoscience and Remote Sensing Symposium proceedings 2016 DOI
  • Nuno Almeida, Nuno Catarino, Antonio Gutiérrez, Nuno Grosso, João Andrade, Hervé Caumont et al.:
    SENSYF experience on integration of EO services in a generic, cloud-based EO exploitation platform
    ESA SP 2016
  • Faozi Said, Harald Johnsen, Bertrand Chapron, Geir Engen :
    An ocean wind Doppler model based on the generalized curvature ocean surface scattering model
    IEEE Transactions on Geoscience and Remote Sensing 2015 DOI
  • Thomas Kræmer, Harald Johnsen, Camilla Brekke :
    Emulating sentinel-1 Doppler radial ice drift measurements using envisat ASAR data
    IEEE Transactions on Geoscience and Remote Sensing 2015 ARKIV / DOI
  • Faozi Said, Harald Johnsen :
    Ocean Surface Wind Retrieval From Dual-Polarized SAR Data Using the Polarization Residual Doppler Frequency
    IEEE Transactions on Geoscience and Remote Sensing 28. February 2014 DOI
  • Thomas Kræmer, Harald Johnsen, Camilla Brekke :
    Improving Doppler frequency estimation from Envisat data
    IEEE International Geoscience and Remote Sensing Symposium proceedings 2014 ARKIV / DOI
  • D. Giudici, A. Villa, L. Recchia, A. M. Guarnieri, Harald Johnsen, P. Meadows et al.:
    Long term PS-Cal analysis of ERS and ASAR data and comparison to other calibration techniques.
    VDE Verlag GmbH 2014 DATA
  • Geir Engen, Harald Johnsen, Yngvar Larsen :
    Sentinel-1 Geophysical Doppler Product - Performance and Application
    VDE Verlag GmbH 2014 DATA
  • Faozi Said, Harald Johnsen :
    Sea surface wind retrieval using both normalized radar cross-section and polarization residual Doppler frequency from TerraSAR-X data
    IEEE conference proceedings 2012 DATA / DOI
  • Geir Engen, Harald Johnsen :
    High-precision Doppler estimation for ocean applications
    ESA SP 2012
  • Fabrice Collard, L Aouf, Harald Johnsen :
    Wave mode processing algorithms, product validation and assimilation. Wave retrievals and applications - White Paper
    ESA SP 2012
  • Harald Johnsen, Fabrice Collard :
    SAR wave processing – improvements towards Sentinel-1 mission
    ESA SP 2012 FULLTEKST
  • Faozi Said, Harald Johnsen :
    Assessment of ocean wind retrieval from dual-polarized x-band SAR data
    VDE Verlag GmbH 2012 DATA / FULLTEKST
  • Harald Johnsen, Geir Engen, Guitton Gilles :
    Sea surface polarization ratio from Envisat ASAR AP Data
    IEEE Transactions on Geoscience and Remote Sensing 2008 DOI
  • Harald Johnsen :
    Assessment of calibrated Sentinel-1 OCN RVL products
    NORCE Norwegian Research Centre 2022
  • Morten Wergeland Hansen, Harald Johnsen, Jeong-Won Park, Geir Engen :
    A new look at Envisat ASAR range Doppler shift retrieval with the aim of reprocessing ten years of level-0 data
    2018
  • Harald Johnsen :
    Scientific Assessment of TSCV Retrievals from Stereo-SAR – A critical Review. (4/2018)
    2018
  • Harald Johnsen :
    Ocean Current from Space Radars - challenges and opportunities
    2018
  • Harald Johnsen :
    Ocean Current from Sentinel-1 Doppler
    2018
  • Vegard Nilsen, Harald Johnsen, Geir Engen :
    A novel approach to SAR ocean wind retrieval
    2018
  • Morten Wergeland Hansen, Harald Johnsen, Geir Engen, Jeong-Won Park, Artem Moiseev :
    Improved knowledge of high latitude ocean circulation with Synthetic Aperture Radar (ISAR) ESA-PRODEX-ISAR FINAL REPORT
    2018
  • Morten Wergeland Hansen, Harald Johnsen, Geir Engen, Jan Even Øie Nilsen :
    Improved measurement of sea surface velocity from synthetic aperture radar
    2017 SAMMENDRAG
  • Harald Johnsen, Geir Engen :
    Doppler shifts retrieval from Sentinel 1 - Status and Way Forward
    2017 PROSJEKT
  • Valentina Boccia, Erik De Witte, Josep Rosello, Michel Tossaint, Craig J. Donlon, Klaus. Scipal et al.:
    A multi-static SAR mission concept enhancing Sentinel-1 capability in surface current dynamics retrieval
    2017
  • Morten Wergeland Hansen, Jeong-Won Park, Harald Johnsen, Geir Engen :
    Improved measurement of sea surface velocity from synthetic aperture radar
    2017
  • Morten Wergeland Hansen, Geir Engen, Harald Johnsen, Johnny Andre Johannessen, Anton Korosov :
    Improved measurements of sea surface velocity from Envisat ASAR and Sentinel-1
    2016
  • Harald Johnsen :
    Ocean Currents and Sentinel 1
    2015
  • Yngvar Larsen, Harald Johnsen, Petar Marinkovic, Andrew Hooper, Tim Wright, Pablo González et al.:
    InSARap at a glance - Team B
    2014
  • Yngvar Larsen, Harald Johnsen, Petar Marinkovic, Andrew Hooper, Tim Wright, Pablo González et al.:
    Sentinel-1 for InSAR based scientific applications
    2014
  • Yngvar Larsen, Harald Johnsen, Petar Marinkovic, Andrew Hooper, Tim Wright, Pablo González et al.:
    Sentinel-1 TOPS - technical challenges (and opportunities)
    2014
  • Harald Johnsen, Fabrice Collard :
    ERS Wave mission reprocessing – QC support - Envisat mission extension support: Assessment of WV Product Quality after Orbit Change. (1/2014)
    2014
  • Harald Johnsen, Geir Engen :
    SAR Doppler for Ocean Current Measurement - processing requirements and performance
    2013
  • Eirik Malnes, Harald Johnsen, Hanne H Christiansen, Wesley R. Farnsworth :
    Backscatter Sensitivity Analysis Using TerraSAR-X Data
    2013
  • yngvar Larsen, Eirik Malnes, Harald Johnsen, Tom Rune Lauknes, Markus Eckerstorfer :
    TerraSAR-X data used for monitoring snow water equivalent and permafrost on Svalbard
    2013
  • N. Miranda, B. Rosich, P.J. Meadows, K. Haria, D. Small, A. Schubert et al.:
    THE ENVISAT ASAR MISSION: A LOOK BACK AT 10 YEARS OF OPERATION
    2013

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