Appreciation of 50 Years of the Study of Oceans and Lakes. Bangor 18-22 March 2002 Talk - Hamm, C. (2002): Geometry and Material Properties of the Silicified Cell Walls of Planktonic Algae: The Technical [...] Design of Radial Framework Structures: The Case of Asterolampra. In: Block, P., Boller, G., DeWolf, C., Pauli, J., & Kaufmann, W. Eds.: Proceedings of the IASS 2024 Symposium; Redefining the Art of Structural [...] Decouple Ocean Carbon and Silicon Cycles in the Iron-limited Antarctic Circumpolar Current . Proceedings of the National Academy of Sciences of the United States of America . 110 (51). 20633-20638 Paper -

in the Pacific Southern Ocean since the Mid-Pleistocene Transition The Southern Ocean plays a critical role in the Earth system, both for the uptake of anthropogenic carbon and for the exchange of heat [...] inspired the concept of the Arcwatch expeditions. The SNAC-cluster now aims at providing a synoptic view of the changing CAO. The “PaRaThA” project is based on the time-integrated information from the natural [...] sedimentation rate and the spatial distribution of the controlling environmental parameters in order to: to quantify the content of organic carbon (OC) in the sediments of the Baltic Sea, assess their OC a

DML as well as data of the control standard IA-RO63. It can be seen that the SD of the DML house standard is higher, but it is still within the specification of the analysis system. The transparent background [...] addition, the δ 15 N values of the organic matter also provide information on the efficiency of the biological pump if terrigenous input can be excluded. The δ 13 C and δ 15 N values of organisms, on the other [...] archives. On the other hand, we determine the δ 18 O values in ice and water samples from the Arctic and Antarctic, as well as the δ 13 C values of dissolved inorganic carbon in the water of the polar oceans

iceberg hit the underwater cable so that the communication to the underwater part of the observatory started to become critical. With the help of the AWIPEV station personal, the REMOS part of the underwater [...] overhaul of the underwater part of the installation, including the replacement of the concrete fundament. The April dive-expedition 2018 to Svalbard was therefore dedicated almost exclusively to the renewal [...] hammered into the sediment. Then, the divers filled the steel frame with additional 72 concrete plates each of it with a weight if 18,4 kg so that the desired final weight of the entire construction of 1.8 tons

In fact, the overall good weather conditions lasted until the end of the cruise. On 10th of June, we finally reached the study area of this expedition, the LTER observatory HAUSGARTEN in the Fram Strait [...] quantitative analysis. The molecular samples serve the continuation of observations of the diversity of microbial communities (Fadeev et al., under review) in the framework of the FRAM project. 24-hour [...] oxygen sensors are also used by the microprofiler to map the vertical distribution of oxygen in the pore waters of the uppermost 10-15 cm of sediment. In steps of a tenth of a millimetre, three sensors are

(POC dry wt %) of 0.1 % (Southern Bight) to 1.9 % (south east of the Helgoland mud area) or 2 % (TOC dry wt%) (southern part of the Helgoland mud area) respectively in sediments of the German North Sea [...] 1997; Müller et al., 2024). Outside of the German part of the North Sea a first estimate (Diesing et al., 2017) of POC storage in the top 10 cm of sub- tidal sediments of the north west European shelf is 0 [...] 79) kgC m− 2. The major carbon deposition center of the North Sea (outside of Germany) is the Norwegian Trough (Skagerrak), accounting for about 87 % of the total Corg accumulation in the total North Sea

refers to the organic carbon content stored in the sediment of marine and coastal ecosystems. Against the backdrop of the current climate and biodiversity crisis, the Blue Carbon potential of marine ecosystems [...] researched and discussed. A study by the German Federal Agency for Nature Conservation (BfN) summarises the current state of knowledge on the Blue Carbon potential of the German North and Baltic Seas. Seagrass [...] review of coastal ecosystem services in the Baltic Sea. Science of the Total Environment 755: e142565. DOI: 10.1016/j. scitotenv.2020.142565 HELCOM/Helsinki Commission (2021a): Report of the HELCOM workshop

that the theory is correct. Wegener got profoundly involved in the matter. We have proof of his meticulousness in that we possess his personal copy of the first edition of his book “The Formation of Continents [...] elements in the Earth’s crust. He called one of them sial and the other sima. Wegener assumed that the oceans were composed of a heavier material than the continents. He thus presumed that the lighter continents [...] continents float on the heavier subsurface, like ice floes on the water. That was the core of his idea! It was associated with the concept of so-called isostasy. This says land bridges or the like couldn’t come

Within the AWI-HZG research program PACESII, the CSD is located in Topic 2 (Fragile Coasts). The Centre for Scientific Diving is also the home of the working group "In situ ecology" which is part of the AWI [...] important for the protection of our coastlines. A good example for this development is the North Sea, were more than 80 % of the coastline is already artificially protected. In 2010, the Centre for Scientific [...] Scientific Diving of the AWI has installed an underwater experimental field North of Helgoland called MarGate to study the impacts of artificial structures on the demersal fish and macroinvertebrate communities

effects on the landscape, as the large ice masses melt, causing parts of the surface to collapse. The considerable diversity to be found in permafrost makes it particularly difficult to keep track of the various [...] found at the Zugspitze. Given its smaller overall land mass, there is less permafrost in the Southern Hemisphere. Although the Antarctic offers the constant low temperatures needed, the amount of land where [...] where the majority of biological and biochemical activity takes place, it is also referred to as the “active layer”, which, as the thawing layer, is not considered to be part of the permafrost. The layer