Hjem
Johnny Andre Johannessens bilde

Johnny Andre Johannessen

Professor
Vitenskapelig artikkel
  • 2020. On removal of sea state contribution to Sentinel-1 Doppler shift for retrieving reliable ocean surface current. Journal of Geophysical Research (JGR): Oceans. 13 sider.
  • 2020. 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. 1-18.
  • 2020. Arctic Sea level Budget Assessment During the GRACE/Argo Time Period. Remote Sensing. 20 sider.
  • 2019. 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. Latent Heat Flux in the Agulhas Current . Remote Sensing.
  • 2019. Evolving the global ocean observing system for research and application services through international coordinatio. Frontiers in Marine Science.
  • 2019. A study of the intensity of Tropical Cyclone Idai using dual-polarization Sentinel-1 data. Remote Sensing.
  • 2018. Quantifying Atlantic Water transport to the Nordic Seas by remote sensing. Remote Sensing of Environment. 758-769.
  • 2018. Measuring currents, ice drift, and waves from space: the Sea Surface KInematics Multiscale monitoring (SKIM) concept. Ocean Science. 337-354.
  • 2018. Exploitation of error correlation in a large analysis validation: GlobCurrent case study. Remote Sensing of Environment. 476-490.
  • 2018. Assessing the accuracy of satellite derived ocean currents by comparing observed and virtual buoys in the Greater Agulhas Region. Remote Sensing of Environment. 735-746.
  • 2018. An improved and homogeneous altimeter sea level record from the ESA Climate Change Initiative. Earth System Science Data. 281-301.
  • 2017. Review and assessment of latent and sensible heat flux accuracy over the global oceans. Remote Sensing of Environment. 196-218.
  • 2017. Northern North Atlantic sea level in CMIP5 climate models – evaluation of mean state, variability and trends against altimetric observations. Journal of Climate. 9383-9398.
  • 2016. Wave Breaking in Slicks: Impacts on C-Band Quad-Polarized SAR Measurements. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing. 4929-4940.
  • 2016. Radar imaging of shallow water bathymetry: A case study in the Yangtze Estuary. Journal of Geophysical Research (JGR): Oceans. 8821-8839.
  • 2016. Quantifying mesoscale eddies in the Lofoten Basin. Journal of Geophysical Research (JGR): Oceans. 4503-4521.
  • 2016. Progress in Earth observation for studying physical oceanography: surface currents, storm surges, sea-ice, atmosphere-ocean gas exchange and surface heat fluxes. Progress in physical geography. 215-246.
  • 2016. Observation and integrated Earth-system science: A roadmap for 2016 - 2025. Advances in Space Research. 2037-2103.
  • 2016. Globcurrent: Multisensor synergy for surface current estimation. ESA SP.
  • 2016. E-GEM-European GNSS-R environmental monitoring. ESA SP.
  • 2016. Developing European operational oceanography for Blue Growth, climate change adaptation and mitigation, and ecosystem-based management. Ocean Science. 953-976.
  • 2016. Arctic Sea Level during the satellite altimetry era. Surveys in geophysics. 251-275.
  • 2016. A regional characterization of the GlobCurrent ocean surface current analysis. ESA SP.
  • 2015. Use of satellite observations for operational oceanography: recent achievements and future prospects. Journal of operational oceanography. Publisher: The Institute of Marine Engineering, Science & Technology.
  • 2015. Monitoring the spreading of the Amazon freshwater plume by MODIS, SMOS, Aquarius, and TOPAZ. Journal of Geophysical Research (JGR): Oceans. 268-283.
  • 2014. Toward Improved Estimation of the Dynamic Topography and Ocean Circulation in the High Latitude and Arctic Ocean: The Importance of GOCE. Surveys in geophysics. 661-679.
  • 2014. Quad-polarization SAR features of ocean currents. Journal of Geophysical Research (JGR): Oceans. 6046-6065.
  • 2014. Multimodel simulations of Arctic Ocean sea surface height variability in the period 1970–2009. Journal of Geophysical Research (JGR): Oceans. 8936-8954.
  • 2014. Mapping sea surface velocities in the Changjiang coastal zone with advanced synthetic aperture radar. Acta Oceanologica Sinica. 141-149.
  • 2014. Assimilating along-track SLA data using the EnOI in an eddy resolving model of the Agulhas system. Ocean Dynamics. 1121-1136.
  • 2013. Satellite-derived multi-year trend in primary production in the Arctic Ocean. International Journal of Remote Sensing. 3903-3937.
  • 2013. On Dual Co-Polarized SAR Measurements of the Ocean Surface. IEEE Geoscience and Remote Sensing Letters. 761-765.
  • 2013. Earth system mass transport mission (e.motion): a concept for future earth gravity field measurements from space. Surveys in geophysics. 141-163.
  • 2012. Simulation of radar backscatter and Doppler shifts of wave–current interaction in the presence of strong tidal current. Remote Sensing of Environment. 113-122.
  • 2012. Particle aggregation at the edges of anticyclonic eddies and implications for distribution of biomass. Ocean Science. 389-400.
  • 2012. On the use of Doppler shift for sea surface wind retrieval from SAR. IEEE Transactions on Geoscience and Remote Sensing. 2901-2909.
  • 2012. Mesoscale Eddies Are Oases for Higher Trophic Marine Life. PLOS ONE. 9 sider.
  • 2012. Joint sun-glitter and radar imagery of surface slicks. Remote Sensing of Environment. 123-132.
  • 2012. Imaging mesoscale upper ocean dynamics using synthetic aperture radar and optical data. Journal of Geophysical Research (JGR): Oceans. 13 sider.
  • 2012. ESA's sentinel missions in support of Earth system science. Remote Sensing of Environment. 84-90.
  • 2012. ASAR imaging for coastal upwelling in the Baltic Sea. Advances in Space Research. 1125-1137.
  • 2011. Retrieval of Sea Surface Range Doppler Velocities from Enivsat ASAR Doppler Centroid Measurements. IEEE Transactions on Geoscience and Remote Sensing. 3582-3592.
  • 2011. Monitoring the surface inflow of Atlantic Water to the Norwegian Sea using Envisat ASAR. Journal of Geophysical Research (JGR): Oceans. 13 sider.
  • 2011. An ocean modelling and assimilation guide to using GOCE geoid products. Ocean Science. 151-164.
  • 2010. Mapping the Agulhas Current from space: An assessment of ASAR surface current velocities. Journal of Geophysical Research (JGR): Oceans. 14 sider.
  • 2009. Sensitivity of remote sensing–derived phytoplankton productivity to mixed layer depth: Lessons from the carbon-based productivity model. Global Biogeochemical Cycles.
  • 2008. The greater Agulhas Current system: An integrated study of its mesoscale variability. Journal of operational oceanography. Publisher: The Institute of Marine Engineering, Science & Technology. 29-44.
  • 2008. Direct ocean surface velocity measurements from space: Improved quantitative interpretation of Envisat ASAR observations. Geophysical Research Letters. 6 sider.
  • 2007. Steric height variability in the Nordic Seas. Journal of Geophysical Research (JGR).
  • 2006. North Sea circulation: Atlantic inflow and its destination. Journal of Geophysical Research (JGR). C12018.
  • 2006. Marine environment and security for the European area - Toward operational oceanography. Bulletin of The American Meteorological Society - (BAMS). 1081-1090.
  • 2005. On radar imaging of current features: 2. Mesoscale eddy and current front detection. Journal of Geophysical Research (JGR). 14 sider.
  • 2005. On radar imaging of current features: 1. Model and comparison with observations. Journal of Geophysical Research (JGR).
  • 2004. On effect of wave breaking on short wind waves. Geophysical Research Letters. 5 sider.
  • 2003. The annual cycles of sea level and sea surface temperature in the western Mediterranean Sea. Journal of Geophysical Research (JGR). 8009.
  • 2003. The annual cycles of sea level and sea surface temperature in the western Mediterranean Sea. Journal of Geophysical Research (JGR). 3059.
  • 2003. The European Gravity Field and Steady-State Ocean Circulation Explorer Satellite Mission: Impact in Geophysics. Surveys in geophysics. 339-386.
  • 2003. Comparison of remotely measured and modelled currents in coastal areas of Norway and Spain. The global atmosphere and ocean system (Print). 39-64.
  • 1998. The Greenland Sea Odden Sea Ice Feature: Intra- and Inter-Annual Variability. Journal of Geophysical Research (JGR). 12709-12724.
  • 1998. Coastwatch '95: ERS-1/SAR detection of natural film on the ocean surface. Journal of Geophysical Research (JGR). 24969-24982.
  • 1998. Coastal wind field retrievals from ERS synthetic aperture radar images. Journal of Geophysical Research (JGR). 7857-7876.
  • 1996. ERS-1 SAR Image of Marine Boundary Layer Processes. Russian Academy of Science.
  • 1995. Coastal Ocean Fronts and Eddies Imaged with ERS-1 SAR. Journal of Geophysical Research (JGR).
  • 1994. SAR Ocean Feature Catalogue. ESA Public. Div. ESTEC.
  • 1994. Observation and Simulation of Ice Tongues and Vortex Pairs in the Marginal Ice Zone. Monograph. Nansen Centennial Volume.
  • 1994. ERS-1 SAR Imaging of Marine Boundary Layer Processes. Earth Observation Quarterly.
  • 1994. Analysis of Atmospheric Lee Waves Near Hopen. Journal of Geophysical Research (JGR).
  • 1994. A Study on the Inflow of Atlantic Water to the GIN Sea using GEOSAT Altimeter Data. Monograph. Nansen Centennial Volume.
  • 1993. Monitoring and modeling of the marine coastal environment. Photogrammetric Engineering and Remote Sensing. 351-361.
  • 1993. Eddies detected in ERS-1 SAR images and simulated in reduced gravity models. International Journal of Remote Sensing. 2203-2213.
  • 1979. Upwelling: Oceanic structure at the edge of the Arctic ice pack in winter. Science. 165-167.
Rapport
  • 2017. GlobCurrent Final Report. 381. 381. .
  • 2016. The Nansen Centers at the ESA Living Planet Symposium 2016. 93. 93. .
  • 2016. GOCE-MDT GOCE studies of mean dynamic topography and ocean circulation in the high latitude and Arctic Ocean. 364. 364. .
  • 2014. SATICE - Arctic Ocean Sea-Ice and Ocean Circulation Changes using Satellite Methods. 333. 333. .
  • 2014. Progress report to the Norwegian Research Council on the project no 19537_20. Norwegian Satellite Earth observation database for marine and polar research (NORMAP). 334. 334. .
  • 2014. Final Report. GreenSeas . .
  • 2013. Synthesis Report of the state and variability of changes in high latitudes and Arctic Region. .
  • 2013. Progress report to the Norwegian Research Council on the project no 19537/20: Norwegian Satellite Earth observation database for marine and polar research (NORMAP). 329. 329. .
  • 2013. Final report to the Norwegian Space Centre on the project no 90378 SIOS - Study of impact of Ocean Salinity for Ocean circulation. .
  • 2013. DOPSCAT - Feasibility investigation of Global Ocean Surface Current Mapping using ERS, MetOp and QuikScat Wind Scatterometer. .
  • 2012. Use of gravimetry and altimetry to monitor CO2 storage and in oil and gas exploration. Status of a feasibility study. .
  • 2011. SIOS Remote Sensing Strategy: Assessment of reserch areas with great EO support potential. .
  • 2011. Assessment of research areas with great EO support potential. .
  • 2007. Combination of Spaceborne, Airboren and In-Situ Gravity Measurements in Support of Arctic Sea Ice Thickness Mapping. .
  • 2002. Development of satellite remote sensing for marine monitoring and climate applications. 213. 213. .
  • 1994. SAR Ocean Feature Catalogue. 1174. 1174. .
  • 1992. MOMS - Marint overvåkings- og modellsystem for fjorder og kyststrøk. .
Faglig foredrag
  • 2016. Ocean Virtual Laboratory : Sentinels Ocean Synergy at your fingertips.
  • 2016. Improved measurements of sea surface velocity from Envisat ASAR and Sentinel-1.
  • 2013. Studying dilution processes in plumes of large Arctic and Equatorial rivers using SMOS and optical data.
  • 2013. Application of bio-optical retrieval algorithm BOREALI, for studying processes in estuaries of large rivers.
Vitenskapelig foredrag
  • 2013. On dual co‐polarized SAR measurements of oil spill on the sea surface.
  • 2012. Session 6: Ocean Current Retrievals and applications.
  • 2012. Monitoring the surface inflow of Atlantic water to the Norwegian Sea using Envisat ASAR (2).
  • 2012. Monitoring the surface inflow of Atlantic water to the Norwegian Sea using Envisat ASAR (1).
  • 2012. Mapping the Nordic Seas surface velocity using Envisat ASAR (2).
  • 2012. Mapping the Nordic Seas surface velocity using Envisat ASAR.
  • 2012. From 2D mesoscale surface expressions to 3D upper ocean dynamics.
  • 2011. SAR imaging of the coastal upwelling in the Baltic Sea.
  • 2011. Measuring interior ocean parameters from space: Oceanic internal waves in the Barents Sea.
  • 2011. All-weather satellite observations of marine thermal fronts in the Baltic and Barents Seas.
  • 2010. Proceedings of the Joint Nansen-Tutu scientific opening symposium & OceansAfrica Meeting.
  • 2010. New gravity field, mean dynamic topography and surface geostrophic current derived from space.
  • 2007. Observed and simulated mean dynamic topography.
  • 2006. The OCTAS project, the geoid, the mean sea surface and and the mean dynamic topography.
  • 2006. Ocean Circulation and Transport between the North Atlantic and Arctic Sea -- status report 2006.
  • 2006. OCTAS: Ocean Circulation and Heat Transport between the North Atlantic and Arctic Sea.
  • 2002. The role of synergy in developing a Marine SAR Analysis and Interpertation System, Building the European Capacity in Operational Oceanography.
  • 2002. Monitoring the Norwegian Coastal Zone Environment (.
  • 2002. Marine SAR Analyses and Interpretation system - MARSAIS, Building the European Capacity on Operational Oceanography.
  • 2002. Marine Environment and Security for the European Area, MERSEA Strand - 1, Buidling the European Capacity on Operational Oceanography.
  • 1998. COASTWATCH '95: Using SAR imagery for monitoring coastal currents, surffactants and wind fields.
  • 1997. Using SAR imagery in an operational system for monitoring coastal currents, wind, surfactants and oil spill.
  • 1997. ERS-1/2 SAR detection of natural film on the ocean surface.
  • 1997. Coastal wind retrievals from SAR images.
  • 1997. Coastal wind retrievals from SAR images.
  • 1997. COASTWATCH'95: using SAR imagery for monitoring coastal currents, surfactants and wind fields.
  • 1996. Coast Watch-95: ERS-1/2 SAR Applications of Mesoscale Upper. Ocean and Atmospheric Boundary Layer Processes off the Coast of Norway.
  • 1994. Kaledonsk duplex utviklet i Vestertanagruppen, Øst Finnmark.
  • 1994. Detection of Surface Currents Features with ERS-1 SAR.
  • 1993. Detection of surface current features with ERS-1 SAR.
  • 1993. Analysis of atmospheric lee waves near Hopen.
  • 1993. A study on the inflow of Atlantic water to the GIN Sea using altimeter data.
Leder
  • 2009. Synthetic aperture radar products for the African marine environment. South African Journal of Science. 85-86.
Vitenskapelig antologi/Konferanseserie
  • 2014. The earth's hydrological cycle. Springer Science+Business Media B.V..
Mastergradsoppgave
  • 2006. Mesoscale variability study of the Agulhas Current from satellite radar altimetry and a high resolution model.
Doktorgradsavhandling
  • 2017. Modeling coastal circulation in Norway using a high-resolution 4D- Var ocean assimilation system .
  • 2005. Towards a North Sea prediction system.
  • 1997. Studies of mesoscale features and processes in the marine boundary layer : the important contribution from spaceborne SAR remote sensing observations. -.
Intervju
  • 2019. «Vi vender oss til filantropen Røkke», sa HI-direktøren. «Lykke til», sa UiB-dekanen.
  • 2018. Satelilitt-tjenester for maritim sektor .
  • 2018. Forbereder hav-utbygging i Hølla.
  • 2018. Denne satellitten kan løse kompliserte spørsmål om havisen i Arktis.
  • 2018. De syv hav rett inn på kontoret.
  • 2017. Norske havteknologibedrifter med internasjonal suksess.
  • 2017. Forskningsrådet gir pengar til nye havforskningsrobotar.
  • 2017. 100 nye bøyer skal gi svar om klima og havmiljø.
  • 2016. Nansensenteret fyller 30 år.
  • 2016. Derfor trengs klimaforskning.
  • 2016. 30 år i Nansens ånd.
  • 2016. - I teorien kan man sitte og flikke på en artikkel i årevis.
  • 2015. The Norwegian Satellite Earth Observation Database for Marine and Polar Research.
  • 2015. Nansen Tutu Center Summer School success.
  • 2014. Her er Norges heftigste forskningsprosjekter.
  • 2014. Gjør klar for Europas nye miljøsatelitt.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • 2013. Satellite Oceanography from the ERS Synthetic Aperture Radar and Radar Altimeter: A Brief Review. 24 sider.
  • 2013. Ocean Current Retrievals and Applications. 7 sider.
  • 2013. INCUSAR—A Method to Retrieve Temporal Averages of 2D Ocean Surface Currents from Synthetic Aperture Radar Doppler Shift. 9 sider.
  • 2013. From 2D mesoscale surface expressions to 3D upper ocean dynamics. 7 sider.
  • 2010. Direct surface current field imaging from space by along-track InSAR and conventional SAR. 19 sider.
  • 2007. The OCTAS poject, The geoid, the mean sea surface and the mean dynamic topography. 8 sider.
  • 2007. Operational Oceanography - Challenges and possibilities. 12 sider.
  • 2006. The MONCOZE Pilot Ocean Modeling System (POMS); a tool for marine environmental monitoring. 6 sider.
  • 2006. Monitoring of the Norwegian coastal zone environment - the MONCOZE approach. 7 sider.
  • 2006. Coastal Physical and Biochemical Processes.
  • 2003. Monitoring the Norwegian Coastal Zone Environment (MONCOZE). 6 sider.
Sammendrag/abstract
  • 2007. The OCTAS07- North Atlantic/Arctic ocean mean sea surface model based on a wavelet adjustment of multiple satellite altimetry data. Geophysical Research Abstracts. 1 sider.
  • 2007. The OCTAS06-North Atlantic/Arctic ocean mean sea surface model. Geophysical Research Abstracts. 1 sider.
  • 2007. The OCTAS project, the interrelationship between the geoid, the mean sea surface and the mean dynamic topography. Geophysical Research Abstracts. 1 sider.
  • 2007. OCTAS with a focus on the importance of a high precision mean sea surface. Geophysical Research Abstracts. 1 sider.
  • 2007. Assessment and Validation of the geoid, MSS and MDT models in the OCTAS project. Geophysical Research Abstracts. 1 sider.
Poster
  • 2018. Quantifying Atlantic Water transport to the Nordic Seas by combined use of Gravimetry and Altimetry.
  • 2018. Ocean surface current retrievals from satellite and coastal remote sensing: A comparison of Envisat ASAR and HF-radar observations from the west coast of Norway.
  • 2018. Comparison of satellite and coastal remote sensing data for ocean surface currents on example of Envisat ASAR and CODAR HF-radar data for the Norwegians west coast.
  • 2016. The Norwegian Satellite Earth Observation Database for Marine and Polar Research - NORMAP.
  • 2016. A regional and Lagrangian characterization of GlobCurrent ocean surface current analyses.
  • 2014. A MULTIMETHOD APPROACH TO LINKING MESOSCALE STRUCTURES TO DISTRIBUTION.
  • 2012. Retrieval of 2D sea surface current from ASAR range Doppler velocity.
  • 2010. Sensitivity of Ocean-Colour-Based Phytoplankton Productivity Estimates to Mixed Layer Depth.
  • 2005. Ocean Circulation and Transport between the North Atlantic and Arctic Sea-status report 2005.
  • 2004. Existing and new Mean Dynamic Topography, Mean Sea Surface and geiod models in the Northern North Atlantic.
Errata
  • 2016. Mesoscale ocean eddy dataset in the Lofoten Basin from Satellite Altimetry. Journal of Geophysical Research (JGR): Oceans. 4503-4521.
Vitenskapelig oversiktsartikkel/review
  • 2019. Observing sea states. 1-29.
  • 2019. Adequacy of the ocean observation system for quantifying regional heat and freshwater storage and change. 1-26.
  • 2015. Improved sea level record over the satellite altimetry era (1993-2010) from the Climate Change Initiative project. 67-82.
  • 2014. Review of understanding of Earth's hydrological cycle: observations, theory and modelling. 491-513.

Se fullstendig oversikt over publikasjoner i CRIStin.

Forskergrupper