organism’s rhythmic life, thereby determining fitness and interactions with other organisms. In the open ocean, pelagic animals like zooplankton perform vertical migrations that actively shape the realized en [...] circadian clock genes in the copepod Calanus finmarchicus during the summer solstice in the high Arctic L Hüppe, L Payton, K Last, D Wilcockson, E Ershova, B Meyer Biology Letters 16: 20200257 (2020) [...] org/10.1098/rsbl.2020.0257 Widely Rhythmic Transcriptome in Calanus finmarchicus during the High Arctic Summer Solstice Period L Payton, L Hüppe, C Noirot, C Hoede, KS Last, D Wilcockson, E Ershova, S

Double-Trouble Resilience and vulnerability of the central Arctic Ocean food web to cumulative stress by warming and anthropogenic pollution. Head of Group Dr. Doreen Kohlbach Further members of the Junior [...] for polar marine food webs. Previous research suggests that pelagic food webs in the Central Arctic Ocean (CAO) are highly dependent on ice-associated food sources (Fig. 1), but how prevailing trophic [...] waters, riverine input and marine traffic will bring more anthropogenic pollutants, even to remote Arctic regions, where they are entrained in water and sea ice, and transferred along the marine food chain

Observatory to investigate the effects of global warming on the Arctic deep sea. Since 2012, she has been focusing on plastic pollution in the oceans. She has published the reference book 'Marine Anthropogenic

S., Bracher A. (2025) Assessment of transparent exopolymer particles in the Arctic Ocean implemented into the coupled ocean-sea ice-biogeochemistry model FESOM2.1-REcOM. Geoscientific Model Development [...] depth in the Southern Ocean. In Proceedings of Ocean Optics XXI, Glasgow, United Kingdom, Oct 2012. Taylor B. B. , Taylor M. H., Dinter T., Bracher A. (2012) Intercomparison of ocean color products identifying [...] Oziel L., Karakus O., Sidorenko D., Völker C., Ye Y., Zeising M., Hauck J. (2023) Ocean biogeochemistry in the coupled ocean-sea ice-biogeochemistry model FESOM2.1-REcoM3. Geoscientific Model Development:

Boetius, A. (2013) FRAM - FRontiers in Arctic marine Monitoring: Permanent Observations in a Gateway to the Arctic Ocean. OCEANS - Bergen, 2013 MTS/IEEE. doi: 10.1109/OCEANS-Bergen.2013.6608008 Soppa, M. , Dinter [...] in a changing Arctic Ocean – Overview of long-term summer measurements in the Fram Strait Variability of chlorophyll a distribution in the Fram Strait, Greenland Sea and Central Arctic Ocean. Polar Research34: [...] Insights into Water Mass Circulation and rigins in the Central Arctic Ocean from in-situ Dissolved Organic Matter Fluorescence. JGR Oceans; JGRC24631: doi 10.1029/2021JC017407 Von Appen W.J., Waite A.,

International Ocean Color Coordination Group. www.ioccg.org/reports/IOCCG_Report_15_2014.pdf / S. Sathyendranath (editor) , Dartmouth, Nova Scotia, B2Y 4A2, Canada., International Ocean-Colour Coordinating [...] V., Bracher, A. , Ramon, D., Sathyendranath, S., Kutser, T., eds. (2020). Colour and Light in the Ocean. Lausanne: Frontiers Media SA. doi: 10.3389/978-2-88963-421-7 2018 Heim B., Juhls B., Abramova E. [...] Bracher A ., Doerffer R., Goncalves-Araujo R., hellmann S., Kraberg A., Martynov, Overduin P. (2019) Ocean Colour Remote Sensing in the Laptev Sea. In: Barale V., Gade M. (eds) Remote Sensing of the Asian

space in the Arctic Ocean and next steps towards its comprehensive monitoring. European Polar Science Week 2020. Virtual Internagtional Conference. 30 Oct 2020 2019 Bracher A. (2019) The Ocean as Seen by [...] 2023 Bracher A: (2023) Hijacking other thematic satellite sensors for ocean colour application" Keynote at 2023 International Ocean Colour Science Meeting, St. Petersburg, FL, USA, 15 November 2023 . Xi [...] (2015) Hyperspectral ocean color imagery and applications to studies of phytoplankton ecology. In Breakout session "Hyperspectral science and applications for shelf and open ocean processes" of IOCS 2015

2025 Zeising M. B. (2025) Transparent Exopolymer Particles in the Surface Arctic Ocean by Ocean Biogeochemistry Modeling. Department of Physics and Engineering, University Bremen, Bremen, Germany, Bremen [...] pigments in the changing Arctic Ocean, Ph.D. thesis, University of Bremen, DOI: 10.26092/elib/6052. 2021 Oelker J. (2021) Suitability of atmospheric satellite sensors for ocean applicaitons . PhD Thesis [...] (2024) Marine Big Data-driven Machine Learning Based Monitoring of Phytoplankton Groups in the Arctic Ocean . Department of Physics and Engineering, University Bremen, Bremen, Germany, Bremen, 12 Sep 2024

Jens.Matthiessen@awi.de
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Am Alten Hafen 26, 27568 Bremerhaven

with the atmosphere and ocean. (Antarctic) Climate change Improved snow process formulations in climate models Investigation of the impact of changing atmospheric and oceanic processes on the evolution [...] S. , and Meyer, H.: Isotopic signatures of snow, sea ice, and surface seawater in the central Arctic Ocean during the MOSAiC expedition, Elementa: Science of the Anthropocene, 12, doi.org/10.1 [...] research will significantly improve our process understanding of Antarctic sea ice in the Southern Ocean climate system – from today’s perspective and for future warming climate scenarios. Background Snow