Forskergrupper
Forskning
Jeg er prosjektleder for EcoSens, som startet i juni 2020 og varer i fire år. Dette er et prosjekt som er finansiert av Norges forskningsråd (Unge forskertalenter prosjekt), og handler om å måle optiske egenskaper i farvann med mye partikler, såkalt optisk komplekse farvann. Eksempelvis algeoppblomstringer og smeltevann fra isbreer. Begge disse situasjonene kan gi vannet en tydelig grønnfarge, og prosjektet fokuserer også på fjernmålinger av vannet fra satellitter. Idéen er at bedre kunnskap om hva som befinner seg i vannoverflaten, kan brukes til å forbedre algoritmene som korrigerer for atmosfæren, slik at satellittbildene kan tolkes bedre.
Undervisning
Emneansvarlig PHYS263 - Laboratoriekurs i optikk (høst)
Emneansvarlig ITØK170 - Energi- og miljøfysikk (vår)
Fast gjesteforeleser i HTEK101 - Introduksjon til havmiljø (høst)
Publikasjoner
Poster
- Hamre, Børge; Tessin, Elinor; Cheatham, Shea Ann et al. (2024). Analysis of Solar Radiation in a Coupled Atmosphere and Fjord System. (ekstern lenke)
- Bergsvik Åsheim, Stefan; Kristoffersen, Arne Skodvin; Hamre, Børge (2024). A spectral matching approach to identify and investigate bio-optical anomalies in coastal waters and fjords. (ekstern lenke)
- Kristoffersen, Arne Skodvin; Tessin, Elinor; Sandven, Håkon Johan et al. (2024). Optical properties of Norwegian fjords: Glacial meltwater and coccolithophore blooms. (ekstern lenke)
- Kristoffersen, Arne Skodvin; Tessin, Elinor; Hamre, Børge et al. (2022). Two shades of green: Comparing the optical properties of an Emiliania huxleyi bloom and a glacial meltwater fjord. (ekstern lenke)
- Sandven, Håkon; Kristoffersen, Arne Skodvin; Chen, Yi-Chun et al. (2018). Measurements of volume scattering function and particle size distribution in Norwegian fjords and Arctic waters. (ekstern lenke)
Vitenskapelig artikkel
- Tessin, Elinor; Hamre, Børge; Kristoffersen, Arne Skodvin (2024). Testing the Limits of Atmospheric Correction over Turbid Norwegian Fjords. (ekstern lenke)
- Ugulen, Håvard Stavn; Koestner, Daniel Warren; Sandven, Håkon Johan et al. (2023). Neural network approach for correction of multiple scattering errors in the LISST-VSF instrument. (ekstern lenke)
- Ugulen, Håvard Stavn; Sandven, Håkon Johan; Hamre, Børge et al. (2022). Efficient Monte Carlo simulation reveals significant multiple scattering errors in underwater angular scattering measurements. (ekstern lenke)
- Zalieckas, Justas; Rios Mondragon, Ivan; Pobedinskas, Paulius et al. (2022). Polycrystalline diamond coating on orthopedic implants: Realization and role of surface topology and chemistry in adsorption of proteins and cell proliferation. (ekstern lenke)
- Klein, Lukáš; Kristoffersen, Arne Skodvin; Touš, Jan et al. (2022). Versatile compressive microscope for hyperspectral transmission and fluorescence lifetime imaging. (ekstern lenke)
- Ugulen, Håvard Stavn; Sandven, Håkon; Hamre, Børge et al. (2021). Analysis of multiple scattering errors in LISST-VSF volume scattering function measurements using Monte Carlo simulations and experimental data. (ekstern lenke)
- Sandven, Håkon; Kristoffersen, Arne Skodvin; Chen, Yi-Chun et al. (2020). In situ measurements of the volume scattering function with LISST-VSF and LISST-200X in extreme environments: evaluation of instrument calibration and validity. (ekstern lenke)
- Prabavathy, Najarajan; Balasundaraprabhu, Rangasamy; Kristoffersen, Arne Skodvin et al. (2020). Enhanced photostability of anthocyanin dye for increased efficiency in natural Dye sensitized solar cells. (ekstern lenke)
- Kristoffersen, Arne Skodvin; Erga, Svein Rune; Hamre, Børge et al. (2018). Testing Fluorescence Lifetime Standards using Two-Photon Excitation and Time-Domain Instrumentation: Fluorescein, Quinine Sulfate and Green Fluorescent Protein. (ekstern lenke)
- Marken, Endre; Ssebiyonga, Nicolausi; Lotsberg, Jon Kåre et al. (2017). Measurement and modeling of volume scattering functions for phytoplankton from Norwegian coastal waters. (ekstern lenke)
- Kristoffersen, Arne Skodvin; Hamre, Børge; Frette, Øyvind et al. (2015). Chlorophyll a fluorescence lifetime reveals reversible UV-induced photosynthetic activity in the green algae Tetraselmis. (ekstern lenke)
- Kristoffersen, Arne Skodvin; Erga, Svein Rune; Hamre, Børge et al. (2014). Testing fluorescence lifetime standards using two-photon excitation and time-domain instrumentation: Rhodamine B, coumarin 6 and lucifer yellow. (ekstern lenke)
- Kristoffersen, Arne Skodvin; Svensen, Øyvind; Ssebiyonga, Nicolausi et al. (2012). Chlorophyll a and NADPH fluorescence lifetimes in the microalgae haematococcus pluvialis (Chlorophyceae) under normal and astaxanthin-accumulating conditions. (ekstern lenke)
Vitenskapelig foredrag
- Ugulen, Håvard Stavn; Sandven, Håkon Johan; Hamre, Børge et al. (2022). Simulating and correcting LISST-VSF measurements. (ekstern lenke)
- Sætre, Camilla; Ugulen, Håvard Stavn; Sandven, Håkon Johan et al. (2022). UNDERWATER OPTICAL COMMUNICATIONS AND CONTRIBUTION FROM FORWARD SCATTERED LIGHT. (ekstern lenke)
- Kristoffersen, Arne Skodvin (2019). Fluorescence lifetime measurements - history, current state and the future. (ekstern lenke)
- Kristoffersen, Arne Skodvin (2019). Green water in Norwegian fjord- and coastal waters. (ekstern lenke)
- Sandven, Håkon; Kristoffersen, Arne Skodvin; Chen, Yi-Chun et al. (2019). Particle size distribution measurements in glacial meltwater using laser diffractometry. (ekstern lenke)
- Sandven, Håkon; Kristoffersen, Arne Skodvin; Chen, Yi-Chun et al. (2018). Measurements of volume scattering function and particle size distribution in natural waters in the Arctic Ocean.. (ekstern lenke)
- Sandven, Håkon; Kristoffersen, Arne Skodvin; Chen, Yi-Chun et al. (2018). Characterisation of the angular distribution of light scattered by ocean particles. (ekstern lenke)
- Kristoffersen, Arne Skodvin (2017). Using fluorescence as a tool to investigate the mysteries of photosynthesis. (ekstern lenke)
- Kristoffersen, Arne Skodvin; Hamre, Børge; Erga, Svein Rune et al. (2015). Fluorescence Lifetime Measurement and Imaging of chlorophyll a in UV-stressed Microalgae Tetraselmis. (ekstern lenke)
- Kristoffersen, Arne Skodvin; Hamre, Børge; Erga, Svein Rune et al. (2015). Fluorescence Lifetime Measurement and Imaging of chlorophyll a in UV-stressed Microalgae Tetraselmis. (ekstern lenke)
- Kristoffersen, Arne Skodvin; Erga, Svein Rune; Hamre, Børge et al. (2014). Fluorescence lifetime of chlorophyll a reveals reversible photo-protection mechanism in the green algae Tetraselmis under UV-stressed conditions. (ekstern lenke)
- Kristoffersen, Arne Skodvin; Erga, Svein Rune; Hamre, Børge et al. (2014). Fluorescence lifetime of chlorophyll a reveals reversible photo-protection mechanism in the green algae Tetraselmis under UV-stressed conditions. (ekstern lenke)
Doktorgradsavhandling
Prosjekter
EcoSens (2020-2024)
Project leader