Content type

  • Ice Core Laboratories

    drilling deep into the ice sheets of Antarctica and Greenland. Why are they important? Because information on the past composition of the atmosphere is [...] transported to Bremerhaven. Once there, the ice is stored and tested at what is likely one of the coldest workplaces in the world. Bundled up in thick clothing, the researchers [...] hundreds of thousands of years ago. In this regard, the water’s oxygen isotopy can help. Since the ratio of different heavy isotopes of the same

  • Continental drift

    "Doesn’t the east coast of South America exactly match the west coast of Africa?" Alfred Wegener asked this question back in 1910, at that time [...] the matter. It must be mentioned at this juncture that before him all sorts of people had noted the fact that the continents of South [...] copy of the first edition of his book “The Formation of Continents and Oceans”. This copy contained blank white pages between the normal pages

  • Scientific Projects

    regions are favoured habitats for humankind with more than half of the world’s population living less than 50 kilometres away from the sea. Due to the increasing effects of global change, many of these [...] and scenarios, coastal defence becomes increasingly 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 [...] layer dynamics and attendant geno- and phenotypic capabilities of its biosphere. Central to the success of the project are the development of in situ approaches through diving and custom-designed

  • Deep Sea

    Deep Sea The deep sea is the largest ecosystem on our planet: roughly 65 percent of the Earth’s surface is covered by this underwater world. Yet [...] dark side of the moon than we do about the ocean depths. Yet the deep sea is not a habitat fully separated from the surface; it is already undergoing [...] kilometres above the seafloor and can be found in all (of) the world’s oceans. With a total length of more than 60,000 kilometres, they constitute the

  • Candidate species

    , with apical tips used for the cultivation of new thalli from the branched thallus. P. palmata can be cultivated in tank culture with air to circulate [...] aquaculture. P. palmata needs a location with flow velocities of 5-10 cm s -1 for optimal nutrient and CO 2 exchange on the surface of the thalli, as well as for the reduction of growth of epiphyts [...] diseases. It is one of the most produced oyster species in the world. Fish Intensive aquaculture candidate species are organisms which require feeding. As

  • SNOWflAke

    ice feedbacks for the Earths’ climate. Cross-scale process understanding in the vertical snow column Quantification of the temporal evolution of internal [...] to better understand the temporal and spatial variability of the different components of the Antarctic sea ice mass budget and its interaction with the [...] Xu, S., Zhu, W., Kacimi, S., Arndt, S. , and Yang, Z.: Quantifying the influence of snow over sea ice morphology on L-band passive microwave satellite observations in the Southern Ocean, The Cryosphere,

  • Projects

    climates today but which came about because of the different (genetic) characteristics of the northern tree refugia – a legacy of the preceding glacial stage. Once [...] with temperature variations in the rest of the world in a climate model simulation (Photo: Alfred-Wegener-Institut) Correlation of multidecadal temperature variations in Brussels with temperature variations in the rest of the world in a climate model simulation (Photo: Alfred-Wegener-Institut) Correlation of centennial temperature variations in

  • Expeditions

    MecoMM-NS II 08. – 22. March 2024, Bremerhaven – Bremerhaven The aims of the cruise HE635 are cross disciplinary investigations of munition dumping sites in the southern German Bight and the test [...] water phytoplankton blooms occur along the flow of the southern Antarctic Circumpolar Current downstream of the island South Georgia. The sources and magnitude of iron (Fe) [...] day remains the most affected country in the world by these shellfish poisonings. An evaluation of all currently available data leads to the hypothesis

  • Outreach

    coastal ecosystems are increasingly losing their balance. What do the latest findings from the Intergovernmental Panel on Climate Change (IPCC) reveal about the state of the oceans? And how are these scientific assessments actually derived? Prof. Dr. Björn Rost, one of the lead authors of the IPCC chapter on oceans and coastal ecosystems, discusses the impacts of climate change on marine life in a [...] Nordsee Zeitung, 6.7.2016) On the occasion of the opening of the Scientific Year 2016/2017, the Nordseezeitung reports on ten marine researchers of the Alfred-Wegener-Institute

  • Stable Isotopes in Marine Geology

    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. In addition, our [...] quality (Fig. 6). Fig 6: δ 18 O analysis data of the house standards Ocean and DML as well as data of the control standard IA-RO63. It can be seen that the SD of the DML house standard [...] 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