Geir Johnsen

According to our database, Geir Johnsen authored at least 10 papers between 2018 and 2023.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2023

HYPSO-1 CubeSat: First Images and In-Orbit Characterization.

Sivert Bakken, Marie Bøe Henriksen, Roger Birkeland, Dennis D. Langer, Adriënne E. Oudijk, Simen Berg, Yeshi Pursley, Joseph L. Garrett, Fredrik Gran-Jansen, Evelyn Honoré-Livermore, Mariusz E. Grøtte, Bjørn Andreas Kristiansen, Milica Orlandic, Paul Gader, Asgeir J. Sørensen, Fred Sigernes, Geir Johnsen, Tor Arne Johansen

Remote. Sens., February, 2023

Evaluating Hyperspectral Secchi Depth Retrieval Through Hybrid Modeling and Regression.

Sivert Bakken, Kelly Luis, Geir Johnsen, Tor Arne Johansen

Proceedings of the 13th Workshop on Hyperspectral Imaging and Signal Processing: Evolution in Remote Sensing, 2023

2022

Underwater Hyperspectral Imaging of Arctic Macroalgal Habitats during the Polar Night Using a Novel Mini-ROV-UHI Portable System.

Natalie Summers, Geir Johnsen, Aksel Alstad Mogstad, Håvard Løvås, Glaucia Fragoso, Jørgen Berge

Remote. Sens., 2022

Campaign For Hyperspectral Data Validation In North Atlantic Coastal Waters.

Adriënne E. Oudijk, Oliver K. Hasler, Henning Øveraas, Sabine Marty, David R. Williamson, Thea Svendsen, Simen Berg, Roger Birkeland, Daniel Halvorsen, Sivert Bakken, Marie Bøe Henriksen, Morten Omholt Alver, Geir Johnsen, Tor Arne Johansen, Annette Stahl, Pål Kvaløy, Alberto Dallolio, Sanna Majaneva, Glaucia Fragoso, Joseph L. Garrett

Proceedings of the 12th Workshop on Hyperspectral Imaging and Signal Processing: Evolution in Remote Sensing, 2022

2021

Analysis and Model Development of Direct Hyperspectral Chlorophyll-A Estimation for Remote Sensing Satellites.

Sivert Bakken, Geir Johnsen, Tor Arne Johansen

Proceedings of the 11th Workshop on Hyperspectral Imaging and Signal Processing: Evolution in Remote Sensing, 2021

2020

Mapping the Historical Shipwreck Figaro in the High Arctic Using Underwater Sensor-Carrying Robots.

Aksel Alstad Mogstad, Øyvind Ødegård, Stein Melvær Nornes, Martin Ludvigsen, Geir Johnsen, Asgeir J. Sørensen, Jørgen Berge

Remote. Sens., 2020

2019

Underwater Hyperspectral Imaging Using a Stationary Platform in the Trans-Atlantic Geotraverse Hydrothermal Field.

Ines Dumke, Martin Ludvigsen, Steinar L. Ellefmo, Fredrik Soreide, Geir Johnsen, Bramley J. Murton

IEEE Trans. Geosci. Remote. Sens., 2019

Toward adaptive robotic sampling of phytoplankton in the coastal ocean.

Glaucia Moreira Fragoso, Emlyn J. Davies, Jenny E. Ullgren, Renato Mendes, Geir Johnsen, Ingrid Ellingsen, Jo Eidsvik, Martin Ludvigsen, Kanna Rajan

Sci. Robotics, 2019

Shallow-Water Habitat Mapping using Underwater Hyperspectral Imaging from an Unmanned Surface Vehicle: A Pilot Study.

Aksel Alstad Mogstad, Geir Johnsen, Martin Ludvigsen

Remote. Sens., 2019

2018

Information-driven robotic sampling in the coastal ocean.

Trygve Olav Fossum, Jo Eidsvik, Ingrid Ellingsen, Morten Omholt Alver, Glaucia Moreira Fragoso, Geir Johnsen, Renato Mendes, Martin Ludvigsen, Kanna Rajan

J. Field Robotics, 2018