Team - AWI OZA

vocalisations, speeding up the analysis of passive acoustic data in order to address ecological questions. I am interested in understanding the effects of the physical environment and the ecosystem productivity [...] acoustic monitoring of ambient noise in the Atlantic sector of the Southern Ocean Svenja Zakrzewski (2010), Bachelor Hochschule Bremerhaven The PALAOA-S experiment: vocal behaviour of Antarctic pinnipeds [...] addresses how the distribution of marine mammals relates to abiotic and biotic environmental factors to explore the ecological role of marine mammals in the Arctic Ocean. Data stem from the interdisciplinary

Projects

Christian Stepanek The Pliocene is seen in many ways as a possible analogue of future warm climate states. The question of the characteristics and of the dynamics of the climate of the Pliocene thus becomes [...] climate states of the Pliocene, sensitivity studies are also taken into account. These allow a better understanding of the climate of the Pliocene in the context of the climate forcings of the future. This [...] regions in the form of prepared, printable graphics and maps as well as their raw data, the preparation of the basics and knowledge on the topic of sea ice as well as the current expert assessment of the sea

Heinrich Award

ng signal. Moreover, the 5–10,000-yr intervals between the events are inconsistent with Milankovitch orbital periodicities, raising the question of what the ultimate cause of the postulated cooling may [...] not only in the region of the North Atlantic Ocean but also in remote areas such as the Pacific Ocean and the Antarctic. See: Heinrich, H.: Origin and consequences of cyclic ice rafting in the northeast [...] planktonic foraminifera to the sediments, and short-lived, massive discharges of icebergs originating in eastern Canada. The path of the icebergs, clearly marked by the presence of ice-rafted detrital carbonate

Research Focus

tal conditions of the future. This implies that we research the state of the Earth System over a time span of several tens of millions of years. While we employ a diverse approach, the following time scales [...] considering the properties of the climate of the past. We are able to reconstruct past climate changes from historical data collections or by evaluating documented observations. The history of Earth provides [...] climate change? This is one of research's central questions. To give a proper answer, we have to know the parameters of natural variability, e.g. the temperatures in oceans, above the continents and in polar

Publications

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 -

Triaxus

and starboard of the ship. Depeding on the diving depth of the system and the speed of the ship, the winch can pay out up to 2500 m of cable with 60 m/min spooling speed. The winch is of the type "Mermac [...] stitut) The profile measurement distance or horizontal resolution of the topAWI system mainly depends on the measurement speed of the sensors and the shape of the undulation profile. Since the measuring [...] use of standard sensors and is only limited by the system properties of the "Triaxus" sensor carrier itself. The sensors can be mounted in free areas inside of the sensor carrier, as well as onto the extra

Projects

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

Southern Ocean - Overturning Circulation

run down the continental slope towards the deep sea floor. The newly formed and well ventilated bottom water underrides, steered by bottom topography, the ACC to fill the deep basins of the world ocean. [...] downward to the deep ocean layers or to the sediment. This process is called the biological pump. Whether the Southern Ocean at large acts as a source or a sink of CO2 for the atmosphere depends on the balance [...] in the Southern Ocean is brought about by the Antarctic Circumpolar Current (ACC) which, driven by strong westerly winds and the temperature differences between the subtropics and the icy Antarctic continent

Projects

improve the ability of such ESMs to faithfully represent the centennial-scale evolution of the global climate, especially its variability, extremes and how tipping points may unfold under the influence [...] climate change information is delivered, helping address the complex challenges of a warming world. As part of the EU’s Destination Earth initiative, the Climate DT produces multi-decadal, high-resolution climate [...] new generation of Earth System Models (ESMs) that are capable of explicitly representing a crucially important, yet unexplored regime of the Earth system – the ocean mesoscale. Leveraging the latest advances

Knowledge Transfer

(YOPP) - from research to improved environmental safety. This video explains the background, methods and aims of the Year of Polar Prediction. For more information, please also visit www.polarprediction [...] change projections to support policy and decision-making. Developing the first operational climate projection system as part of the Destination Earth Initiative, which will deliver real-time, high-resolution [...] storylines to make the impacts of climate change more tangible and relevant for different sectors and communities. Understanding Climate Models and Climate Change We address key questions such as: What is