Sea Ice Thickness - Mass Balance The Arctic sea ice extent and thickness have undergone dramatic changes in the past decades: The summer sea ice extent is declining at an annual [...] atmospheric greenhouse gas loading scenarios. The mass balance of Arctic sea ice is therefore determined not only by changes in the energy balance of the coupled ice-ocean-atmosphere system but also by [...] influence of dynamic effects. One aspect of the mass balance of Arctic sea ice are changes of ice volume export rates through major gates of the Arctic, such as Fram Strait. The Sea Ice Physics group

GROCE - Greenland Ice Sheet Ocean Interaction Investigation of the Interactions Between the Greenland Ice Sheet and the Surrounding Ocean The joint research project GROCE ( Greenland Ice Sheet Ocean Interaction ) is a research initiative funded by the German Federal Ministry of Education and Research, involving eight German [...] achieve this, the interactions connecting the North Atlantic, the Arctic Ocean, and Greenland's glaciers need to be studied in greater detail. More information can be found on the project's website.

Physics, Markus Rex led the MOSAiC-Expedition , the largest Arctic research expedition of our time, during which the research vessel “Polarstern” was frozen in the Arctic ice for a year to study the [...] . Scientists from 20 nations collected valuable data about the Arctic, which is crucial for understanding the future climate change. In the SR3 podcast “Aus dem Leben”, Markus Rex reports on his [...] and regulating the exchange of heat and moisture between the ocean and the atmosphere, explains Prof. Christian Haas. Changes in the extent and thickness of sea ice therefore serve as important

) The properties of the atmosphere, sea-ice and the polar oceans, and feedbacks between these domains play an important role in global climate. At the same time, the seasonal evolution of sea-ice [...] buoy systems to record key parameters in the ice-covered, central Arctic Ocean. The concurrent recording of physical, biological and biogeochemical measurements in the atmosphere, sea-ice and ocean for [...] Rabe +49(471)4831-2403 Benjamin.Rabe @ awi.de Deployment of an ocean profilers in the sea-ice (Photo: Alfred-Wegener-Institut)

Dr. Gabriele Uenzelmann-Neben Dr. Karsten Gohl Extent of the Arctic ice sheets during the last glacial (Graphic: Catalina Gebhardt) In contrast to the continent Antarctica, the Arctic region consists of a large marine basin. Therefore, Arctic ice sheets are located on its surrounding land masses. At present, the only existing ice sheet is found on Greenland, but in the [...] During their maximum extent, these ice sheets reached far into the Arctic Ocean, and signs of glacial overprint can be found as far north as at the North Pole. Many studies have shown that the onset of the

exposure will be studied in East Siberia along a transect from the Arctic Ocean to the Lake Baikal. The objectives of the project are to: (i) Reconstruct (a) mean interglacial temperatures at the southern [...] Meyer Funding: Leverhulme Grant Changes of water isotopes in Arctic Sea ice, Ocean, and atMosphere (CiASOM) (2021-2024) The main goal of the Changes of water isotopes in Arctic Sea ice, Ocean, and [...] is to provide a comprehensive description of the present-day Arctic water cycle and related key exchange processes between the atmosphere, ocean, and sea ice, using both instrumental data and climate

The role of clouds and warm air masses from the open ocean for the rapid warming of the Arctic is at the heart of a recent Alfred Wegener Institute project on Svalbard. The researchers are

Forecast of Sea Ice Conditions The state of the Arctic climate system is rapidly changing. These changes are impacting ecosystems, coastal communities, and economic activities. High-quality [...] concentration, ice thickness from SMOS, snow depth) as well as ocean observations (sea-surface temperature) to optimize the initial state of the sea ice-ocean system for short-term (up to 6 days) [...] . However, this approach neglects all feedback of the sea ice-ocean system onto the atmosphere. This year (2015) the initial state of the sea ice-ocean model has been constrained by sea-ice observations

up the research camp for their one-year-long drift through the Arctic Ocean. Consequently, one of the most important milestones in the expedition has been reached ahead of schedule, and before the Polar

biological carbon pump) are linked in the present-day and future Arctic ocean, as well as to which extent this relationship is driven by differences between functional groups (i.e. species shifts) and [...] carbonate chemistry parameters in the Fram Strait and the Central Arctic Ocean. To monitor such parameters in the ocean, it is common practice to analyze discrete water samples obtained e.g. by rosette [...] sensors are designed and calibrated to perform in temperate oceans and thus, the Arctic represents a challenging environment that lies outside the configuaration of most sensors. Hence, in order to