PhD Thesis Alexandra Cherkasheva 2009-2014 Arctic phytoplankton today deserve special attention as they are already living in waters with most prominent climate change effect, which [...] recommended to use remote sensing data alone, as the satellite ocean color algorithms are known to perform poorly at polar latitudes even if developed explicitly for the Arctic waters. Gaps in satellite [...] Oceanic primary production: I. Adaptation of a spectral light-photosynthesis model in view of application to satellite chlorophyll observations

2018) Underway spectrophotometry in the Fram Strait (European Arctic Ocean): a highly resolved chlorophyll a data source for complementing satellite ocean color. Optics Express Other references: 1. [...] Dijken, “Continued increases in Arctic Ocean primary production,” Prog. Oceanogr. 136 , 60-70 (2015). 4. A.J. Kettle and M.O. Andreae, “Flux of dimethylsulfide from the oceans: a comparison of updated data sets and flux models,” J. Geophys. Res. 105 , 26793-26808 (2000). 5. M. Levasseur, “Impact of Arctic

et al., 1999; Benner et al., 2004). Most of the Arctic outflow and, as a consequence, the total carbon mobilized into the Arctic Ocean, leave the Arctic basin via the Fram Srait, following [...] FDOM humic-like signal seems to be the dominant signal in the Arctic DOM-pool. Since CDOM and FDOM are strongly correlated in the Arctic Ocean and FDOM provides more qualitative information of DOM ( [...] 117, C11005, doi: 10.1029/2012JC008011. Fichot, C.G. et al. Pan-Arctic distributions of continental runoff in the Arctic Ocean. Sci. Rep. 3, 1053; DOI:10.1038/srep01053 (2013). Gonçalves-Araujo R.,

vehicel (internal data storage to avoid problems with ice in arctic regions) - measure C,T and p with precision high enough to indicate convective events in polar regions - light construction for easy [...] time a cast shall start, and it is removed when it reaches the ocean bottom. The vehicle itself is balanced to posess some buoyancy and to swim up by itself, finally reaching the control unit again.

and Stein, R., 2015: Holocene environmental variability in the Arctic Gateway . In: "Integrated Analysis of Interglacial Climate Dynamics (INTERDYNAMIC)". M. Schulz and A. Paul (eds.), Springer, Germany [...] 642-32235-8 Xu, X., M. Werner, M. Butzin, and G. Lohmann, 2013: Oceanic d18O Variation and its Relation to Salinity in the MPI-OM Ocean Model . In: "Earth System Science: Bridging the Gaps between [...] /978-3-642-32235-8 Bora, S., S. Danilov, and G. Lohmann, 2013: Ocean Adjustment to High-Latitude Density Perturbations . In: "Earth System Science: Bridging the Gaps between Disciplines Perspectives

Geosciences
The Arctic Ocean was covered by up to 900 m thick shelf ice and was filled entirely with freshwater at least twice in the last 150,000 years. [...] of marine deposits, the scientists could demonstrate that the Arctic Ocean as well as the Nordic Seas did not contain sea-salt in at least two glacial periods. Instead, these oceans were filled with

. Plastic particles are broken down in the ocean by sunlight, temperature fluctuations, mechanical abrasion and wave action into small fragments known as microplastics. These tiny [...] (Video) | 25.04.2018 Plastic pollution: record levels found in Arctic sea ice Find out more > BBC | 24.04.2018 Record concentration of microplastics found in Arctic Find out more > Dialogue & Lectures Policy advice Arctic Monitoring & Assessment Programme (AMAP) Member of the Expert Group on Microplastic Monitoring in the Arctic

Sea ice Application of satellite data Arctic Ocean IceBird For the past several years, the sea ice in the Arctic has melted more and more intensively during the summer months. [...] we at AWI are exploring the thickness and surface conditions of Arctic sea ice. We measure both properties in several key regions of the Arctic Ocean with autonomous buoys, on helicopter and aircraft [...] of the most important reference data set on the development of Arctic sea-ice cover worldwide. Those surveys indicate that the thickness of sea ice leaving the Arctic Ocean towards the North Atlantic

MOSAiC - Multidisciplinary drifting Observatory for the Study of Arctic Climate ). From fall 2019 to fall 2020, the German research icebreaker POLARSTERN drifted frozen through the Arctic Ocean. The data [...] and in the adjacent Arctic Ocean. The coast plays a special role as a transition link. Observation networks, floods of big data and sample density are constantly [...] and the role of atmospheric processes in interactions with land-ocean links in the Arctic climate system. The methodological applications are also used in practice-oriented university teaching and in

including dead marine microorganisms, material transported to the oceans by rivers –the particles that trickle down are deposited layer by layer at depth. Ultimately, a unique archive is created, one that [...] aims of the various analyses is to determine how much carbon the ocean removed from the atmosphere and stored in its depths in the past. The permanently frozen soils of the Arctic store tremendous amounts [...] 440 KB Media Science Daily | 10.09.2018 Coastal erosion in the Arctic intensifies global warming Find out more > Dialogue & Lectures Policy advice