Browsing Bergen Open Research Archive by Author "Chen, Yi-Chun"
Now showing items 1-7 of 7
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Absorption properties of high-latitude Norwegian coastal water: The impact of CDOM and particulate matter
Cirennima, X; Frette, Øyvind; Hamre, Børge; Erga, Svein Rune; Chen, Yi-Chun; Zhao, Lu; Sørensen, Kai; Norli, Marit; Stamnes, Knut; Stamnes, Jakob J. (Peer reviewed; Journal article, 2016-09)We present data from measurements and analyses of the spectral absorption due to colored dissolved organic matter (CDOM), total suspended matter (TSM), phytoplankton, and non-algal particles (NAP) in high-latitude northern ... -
CDOM absorption properties of natural water bodies along extreme environmental gradients
Nima, Ciren; Frette, Øyvind; Hamre, Børge; Stamnes, Jakob J.; Chen, Yi-Chun; Sørensen, Kai; Norli, Marit; Lu, Daren; Xing, Qianguo; Muyimbwa, Dennis; Ssenyonga, Taddeo; Stamnes, Knut; Erga, Svein Rune (Peer reviewed; Journal article, 2019-09-24)We present absorption properties of colored dissolved organic matter (CDOM) sampled in six different water bodies along extreme altitudinal, latitudinal, and trophic state gradients. Three sites are in Norway: the mesotrophic ... -
Cherenkov luminescence imaging for assessment of radioactive plaque position in brachytherapy of uveal melanoma: An in vivo feasibility study
Krohn, Jørgen Gitlesen; Chen, Yi-Chun; Stabo-Eeg, Nils Ole; Hamre, Børge (Journal article; Peer reviewed, 2020)Purpose: To study the feasibility of using Cherenkov luminescence imaging (CLI) to evaluate and document ruthenium-106 plaque position during brachytherapy of uveal melanoma. Methods: Ruthenium-106 decays by emitting ... -
Climatology of aerosol optical properties in Northern Norway and Svalbard
Chen, Yi-Chun; Frette, Ø.; Stamnes, J. J.; Hamre, B. (Peer reviewed; Journal article, 2012-12-07)We present comparisons between estimates of the aerosol optical thickness and the °Angstr¨om exponent in Northern Norway and Svalbard based on data from AERONET stations at Andenes (69 ◦N, 16 ◦E, 379 m altitude) and Hornsund ... -
In situ measurements of the volume scattering function with LISST-VSF and LISST-200X in extreme environments: evaluation of instrument calibration and validity
Sandven, Håkon; Kristoffersen, Arne Skodvin; Hamre, Børge; Chen, Yi-Chun (Journal article; Peer reviewed, 2020)The LISST-VSF and LISST-200X are commercial instruments made available in recent years, enabling underwater measurements of the volume scattering function, which has not been routinely measured in situ due to lack of ... -
Pixelwise immersion factor calibration for underwater hyperspectral imaging instruments
Liu, Hongbo; Summers, Natalie Maria; Chen, Yi-Chun; Løvås, Håvard Snefjellå; Johnsen, Geir; Koestner, Daniel Warren; Sætre, Camilla; Hamre, Børge (Journal article; Peer reviewed, 2024)In situ spectral reflectance initially captured at high spatial resolution with underwater hyperspectral imaging (UHI) is effective for classification and quantification in oceanic biogeochemical studies; however, the ... -
UV and aerosol climatology based on simulations and measurements by satellites and ground station
Chen, Yi-Chun (Doctoral thesis, 2013-03-22)Solar radiation (200–4,000 nm) is very important for the climate system on Earth. It provides heat and drives the photosynthesis in plants to fuel all life. It plays a major role in the original synthesis of biomolecules ...