the following: What are the reasons for the dramatic changes in Arctic sea ice during the last decades? Why is the development of sea ice in the Antarctic so different to the Arctic and shows strong [...] How does snow on sea ice influence the observed variability of Arctic and Antarctic sea ice? How do variations in melt and freeze rates impact the ocean and the atmosphere in the Arctic and Antarctic? [...] the environment by increasing commercial activities of the polar ocean due to Arctic sea ice retreat? We apply, improve, and develop various methods to study sea ice and snow processes in both hemispheres

Topics All Biodiversity Ice Sea Climate Regions All Arctic Antarctic North Sea Biodiversity Climate Arctic Arctic Species in Climate Change The Arctic is a habitat for specialists. Species [...] conditions produced by climate change. Find out more Ice Climate Sea Arctic Antarctic Sea Ice Broad expanses of the Arctic Ocean and the Southern Ocean in the Antarctic are covered in sea ice. The ice plays [...] benefiting from the developments. Find out more Sea Climate Arctic Antarctic North Sea Ocean Acidification Our planet’s oceans absorb tremendous amounts of carbon dioxide. Instead of causing atmospheric

Changing Arctic Carbon cycle in the cOastal Ocean Near-shore - CACOON No other region has warmed as much or as rapidly in the past decades as the [...] globally from land to ocean, despite the Arctic Ocean making up only approximately 1% of the Earth’s ocean volume. Arctic shelf waters are therefore dominated [...] on the type and fate of river-borne organic matter delivered to Arctic coastal waters, and the resultant changes to ecosystem functioning in the coastal Arctic Ocean. We will achieve this through a

multidisciplinary field studies and experimental work in the deep Arctic Ocean. In December 2008 a Joint Research Group for Deep-Sea Ecology and Technology of the Helmholtz Association and the Max Planck [...] deep-sea research, and to set up a new research focus on the deep Arctic Ocean. The Joint Research Group comprises the expertise of the MPI-MM in the area of marine microbiology, the development of new [...] TECHNOLOGY Instruments and gears to facilitate research in the deep Arctic Ocean Find out more Section Head: Dr. Frank Wenzhöfer Lead MPI-MM branch: Prof. Dr. Antje Boetius Assistance / Website: Annabel

Polarstern will set sail for a six week expedition to the Central Arctic Ocean initiated by “ART”. ART, in this case, does not stand for artistry but is the abbreviation for Arctic in Rapid Transition, an [...] network established by early career scientists working in the Arctic.

2045. During these 20 years, 10 year-long drift studies in the Arctic Ocean are planned. The work is based on the collaboration of an international and interdisciplinary consortium of more than 30 [...] J. Schmale, M. Flores, K. Law et al. Microbial life in Arctic sea ice M. Vancoppenolle, J. Deming, S. Rysgaard et al. Epi/meso-pelagic life in an ice covered ocean M. Geoffroy, I. Polyakov, M. [...] sea ice and pollution on unique and fragile ecosystems Observe Arctic fish stocks and the impact of the arrival of more temperate species Life in a frozen ocean: analogues to other ocean planets and

with respect to tipping points Horizon 2020: OceanNETs : Ocean-based Negative Emission Technologies - analyzing the feasibility, risks, and co-benefits of ocean-based negative emission [...] by Alkalinity Enhancement: Potential, Benefits and Risks BMBF nuArctic: Towards a better understanding of the nutrient cycles in the ‘new’ Arctic Ocean and implications for future primary productivity and carbon export OceanICU : OceanICU is a Horizon Europe project aiming to produce new data, information and understanding on the role of the Ocean in the

Long-Term Ecological Research in the deep Arctic Ocean The marine Arctic has been an integral part of the history of our planet over the past 130 million years and contributes [...] transition zone between the northern North Atlantic and the central Arctic Ocean, the Alfred Wegener Institute established the LTER (Long-Term Ecological Research) observatory HAUSGARTEN in the Fram Strait [...] ARK-XVIII/1 2001 Polarstern ARK-XVII/2 2001 L'Atalante Arctic Ocean 2001 2000 Polarstern ARK-XVI/2 1999 Polarstern ARK-XV/1

, we aim to improve current predictions about the fate of the Arctic Ocean in times of climate change Link to project webpage ARJEL To better understand the role of jellyfish in Arctic seas, the [...] for future sustainable ecosystem management in the Central Arctic. Link to project webpage SO-ASE The Helmholtz Investigators Group “Southern Ocean & Antarctic Sea ice Evolution (SO-ASE)” is looking [...] system. Link to project webpage SO-CLIM Linkt to project webpage oceanPeak ERC Starting Grant OceanPeak COLDSPOT The project investigates where and why Arctic soils act as sinks for methane and nitrous

, we aim to improve current predictions about the fate of the Arctic Ocean in times of climate change Link to project webpage ARJEL To better understand the role of jellyfish in Arctic seas, the [...] for future sustainable ecosystem management in the Central Arctic. Link to project webpage SO-ASE The Helmholtz Investigators Group “Southern Ocean & Antarctic Sea ice Evolution (SO-ASE)” is looking [...] system. Link to project webpage SO-CLIM Linkt to project webpage oceanPeak ERC Starting Grant OceanPeak COLDSPOT The project investigates where and why Arctic soils act as sinks for methane and nitrous