Daniel Ørnes Halvorsen
Om
Publikasjoner
Assimilation of heterogeneous measurements at different spatial scales in the Arctic ocean and Norwegian sea
The assimilation of ocean temperature measurements into ocean models provides useful insights on how to design heterogeneous ocean observation systems. This study demonstrates how to best complement models with operational assets such as satellites etc.
Twin experiment analysis of data assimilation performance using Gaussian anamorphic transformation for highly skewed ocean model variables
This study investigates the use of Gaussian anamorphic transformations to assimilate non-Gaussian biological state variables in an ensemble Kalman filter framework.
Campaign For Hyperspectral Data Validation In North Atlantic Coastal Waters
The high photosynthetic productivity of the Mausund bank
on the coast of mid-Norway has given the area important economic and ecologic value. Monitoring chlorophyll-a (chl-a)
production can assist in managing the local aquaculture and
ecosystem.
2026
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Halvorsen, Daniel Ørnes;
Alver, Morten Omholt;
Ellingsen, Ingrid Helene;
Nordam, Tor.
(2026)
Towards precision state estimation of the ocean using the Ensemble Kalman Filter.
Norges teknisk-naturvitenskapelige universitet
Doktoravhandling
-
Halvorsen, Daniel Ørnes;
Chiatante, Corrado;
Penne, Cameron Louis;
Singh, Asmita;
Bakken, Sivert;
Moreira Fragoso, Glaucia;
Birkeland, Roger;
Dallolio, Alberto;
Garrett, Joseph Landon;
Johansen, Tor Arne.
(2026)
Operational closed-loop system for multi-scale chlorophyll-a monitoring along the Norwegian coast.
Frontiers in Marine Science
Vitenskapelig artikkel
2025
-
Halvorsen, Daniel Ørnes;
Ellingsen, Ingrid Helene;
Alver, Morten Omholt.
(2025)
Propagation of Ensemble Kalman Filter corrections into nested ocean model domains: A Norwegian coast case study.
Journal of Marine Systems
Vitenskapelig artikkel
2024
-
Chiatante, Corrado;
Berg, Simen;
Garrett, Joseph Landon;
Halvorsen, Daniel Ørnes;
Birkeland, Roger;
Orlandic, Milica.
(2024)
A Coordinated Approach Using Hyperspectral Satellite and USV for Algae Bloom Monitoring in Norwegian Coastal Waters.
Proceedings of the International Astronautical Congress
Vitenskapelig artikkel
2023
-
Williamson, David Roddan;
Moreira Fragoso, Glaucia;
Majaneva, Sanna Kristiina;
Dallolio, Alberto;
Halvorsen, Daniel Ørnes;
Hasler, Oliver Kevin;
Oudijk, Adriënne Esmeralda;
Langer, Dennis David;
Johansen, Tor Arne;
Johnsen, Geir.
(2023)
Monitoring Algal Blooms with Complementary Sensors on Multiple Spatial and Temporal Scales.
Oceanography
Vitenskapelig artikkel
-
Halvorsen, Daniel Ørnes;
Alver, Morten Omholt.
(2023)
Twin experiment analysis of data assimilation performance using Gaussian anamorphic transformation for highly skewed ocean model variables.
Vitenskapelig kapittel
2022
-
Oudijk, Esmée;
Hasler, Oliver Kevin;
Øveraas, Henning;
Marty, Sabine;
Williamson, David Roddan;
Svendsen, Torbjørn Karl;
Berg, Simen;
Birkeland, Roger;
Halvorsen, Daniel Ørnes;
Bakken, Sivert.
(2022)
Campaign For Hyperspectral Data Validation In North Atlantic Coastal Waters.
Workshop on Hyperspectral Image and Signal Processing, Evolution in Remote Sensing
Vitenskapelig artikkel
-
Halvorsen, Daniel Ørnes;
Dallolio, Alberto;
Alver, Morten Omholt.
(2022)
Assimilation of heterogeneous measurements at different spatial scales in the Arctic ocean and Norwegian sea.
Vitenskapelig kapittel
Tidsskriftspublikasjoner
-
Halvorsen, Daniel Ørnes;
Chiatante, Corrado;
Penne, Cameron Louis;
Singh, Asmita;
Bakken, Sivert;
Moreira Fragoso, Glaucia;
Birkeland, Roger;
Dallolio, Alberto;
Garrett, Joseph Landon;
Johansen, Tor Arne.
(2026)
Operational closed-loop system for multi-scale chlorophyll-a monitoring along the Norwegian coast.
Frontiers in Marine Science
Vitenskapelig artikkel
-
Halvorsen, Daniel Ørnes;
Ellingsen, Ingrid Helene;
Alver, Morten Omholt.
(2025)
Propagation of Ensemble Kalman Filter corrections into nested ocean model domains: A Norwegian coast case study.
Journal of Marine Systems
Vitenskapelig artikkel
-
Chiatante, Corrado;
Berg, Simen;
Garrett, Joseph Landon;
Halvorsen, Daniel Ørnes;
Birkeland, Roger;
Orlandic, Milica.
(2024)
A Coordinated Approach Using Hyperspectral Satellite and USV for Algae Bloom Monitoring in Norwegian Coastal Waters.
Proceedings of the International Astronautical Congress
Vitenskapelig artikkel
-
Williamson, David Roddan;
Moreira Fragoso, Glaucia;
Majaneva, Sanna Kristiina;
Dallolio, Alberto;
Halvorsen, Daniel Ørnes;
Hasler, Oliver Kevin;
Oudijk, Adriënne Esmeralda;
Langer, Dennis David;
Johansen, Tor Arne;
Johnsen, Geir.
(2023)
Monitoring Algal Blooms with Complementary Sensors on Multiple Spatial and Temporal Scales.
Oceanography
Vitenskapelig artikkel
-
Oudijk, Esmée;
Hasler, Oliver Kevin;
Øveraas, Henning;
Marty, Sabine;
Williamson, David Roddan;
Svendsen, Torbjørn Karl;
Berg, Simen;
Birkeland, Roger;
Halvorsen, Daniel Ørnes;
Bakken, Sivert.
(2022)
Campaign For Hyperspectral Data Validation In North Atlantic Coastal Waters.
Workshop on Hyperspectral Image and Signal Processing, Evolution in Remote Sensing
Vitenskapelig artikkel
Del av bok/rapport
-
Halvorsen, Daniel Ørnes;
Dallolio, Alberto;
Alver, Morten Omholt.
(2022)
Assimilation of heterogeneous measurements at different spatial scales in the Arctic ocean and Norwegian sea.
Vitenskapelig kapittel
-
Halvorsen, Daniel Ørnes;
Alver, Morten Omholt.
(2023)
Twin experiment analysis of data assimilation performance using Gaussian anamorphic transformation for highly skewed ocean model variables.
Vitenskapelig kapittel
Studentoppgave eller avhandling
-
Halvorsen, Daniel Ørnes;
Alver, Morten Omholt;
Ellingsen, Ingrid Helene;
Nordam, Tor.
(2026)
Towards precision state estimation of the ocean using the Ensemble Kalman Filter.
Norges teknisk-naturvitenskapelige universitet
Doktoravhandling
Formidling
2026
-
KonferanseposterHalvorsen, Daniel Ørnes; Christensen, Kai Håkon; Drivdal, Magnus Bjørn; Ellingsen, Ingrid Helene; Frøysa, Håvard Guldbrandsen; Jakobsson, Øyvind; Knutsen, Øyvind; Matuszak, Mateusz; Randelhoff, Achim. (2026) Modeling Connectivity–Derived Infection Networks to Inform Area–Organization in Norway’s Salmon Aquaculture Industry. Ocean Sciences Meeting 2026
2024
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KonferanseforedragChiatante, Corrado; Berg, Simen; Garrett, Joseph Landon; Halvorsen, Daniel Ørnes; Birkeland, Roger; Orlandic, Milica. (2024) A Coordinated Approach Using Hyperspectral Satellite and USV for Algae Bloom Monitoring in Norwegian Coastal Waters. International Astronautical Congress 2024