Arctic sea ice: a chain reaction Dr Thomas Krumpen, sea ice physicist and expert for satellite analyses at the Alfred Wegener Institute. Sea ice Application of satellite data Arctic Ocean IceBird For the [...] reference data set on the development of Arctic sea-ice cover worldwide. Those surveys indicate that the thickness of sea ice leaving the Arctic Ocean towards the North Atlantic has steadily decreased since 2001 [...] involved in the formation and disappearance of sea ice. With that goal in mind, we at AWI are exploring the thickness and surface conditions of Arctic sea ice. We measure both properties in several key

weather in Brandenburg also fluctuates due to long-range atmospheric effects from the Arctic. The north polar seas, coasts and permafrost regions contain unique habitats for people, animals and plants and offer [...] place where very few people notice environmental changes. The polar and sub-polar regions around the North Pole represent an early warning system for global climate change. Hardly any other region in the world

using the North Sea and Baltic Sea in sustainable ways What impact will the exclusion of bottom trawling have on marine protected areas in the German Exclusive Economic Zone (EEZ) of the North Sea and Baltic [...] Baltic Sea? Two pilot missions in the North Sea and Baltic Sea, which started in March, are examining this key question as part of the research mission “Protection and Sustainable Use of Marine Areas” of

course for Helgoland. The research team of the "North Sea Wrecks" project collected samples around the wreck of the warship SMS MAINZ off the North Sea island. They will be used to investigate the extent [...] Research Project North Sea Wrecks
Stormy weather and strict hygiene regulations put the science crew to the test. After a delay of almost two days due to weather conditions and several days of scheduled

yedoma erosion study: "Speedily eroding North Slope river bluff offers window into ice age past" 2015-11-07 On Arctic Dispatch News there is another article about a North Slope tundra fire, a study Guido c [...] PNN reports on the 15th ICRSS conference in Potsdam which is organized by Guido Grosse: Thaw at the North Pole (in German only) 2018-09-06 Ingmar, Guido and other colleagues are authors of a guest post "How [...] co-author a joint-paper in Global Change Biology on the expansion of beaver habitat into the tundra in north-western Alaska . This paper was captured by several media including local to national newspapers,

study sites (Alaska North Slope, Western Alaska, Central Yakutia, Kolyma Lowland) in the northern permafrost zone from 1999 to 2014. Regional patterns of lake area change on the Alaska North Slope (−0.69%) [...] two thermokarst-affected yedoma landscapes – on Sobo-Sise Island and on Bykovsky Peninsula in the north of eastern Siberia. Soil cores up to 3 m depth were collected along geomorphic gradients and analysed [...] permafrost region. Link to journal Yedoma Ice Complex of the Buor Khaya Peninsula (southern Laptev Sea) Minimum, mean (red), and maximum ground temperatures based on almost 3 years continuous measurements

Keel Laying for New Research Ship
The Alfred Wegener Institute is setting new standards for sustainability in German maritime shipping. On 8 June 2021 the keel for the successor to the research cut

water masses from the North Atlantic into the European marginal seas of the Arctic Ocean plays a significant role in the marked decrease in sea-ice growth, especially in winter. Sea-ice physicists from the [...] growth in the Barents and Kara Seas for years. Furthermore, they demonstrate that the invasion of warm Atlantic water masses further east, at the northern edge of the Laptev Sea, can have such a long-term [...] thickness that the effects are evident a year later, when the ice has drifted towards Greenland via the North Pole and leaves the Arctic through Fram Strait. This study also includes data from the MOSAiC expedition

20-150 cylindrical North Sea / Helgoland Coscinodiscus granii F/2 15 50 40-200 cylindrical North Sea / Helgoland Coscinodiscus wailesii (2x) F/2 15 50 250-500 cylindrical North Sea / Helgoland Thalassiosira [...] 15 50 40-250 elliptic / cylinder - chains North Sea / Helgoland Achnanthes taeniata F/2 15 50 60 elliptic / cylinder - connected to ribbon-like bands North Sea / Helgoland Mediopyxis helysia F/2 15 50 85-125 [...] elliptic / cylinder - chains North Sea / Helgoland Skeletonema costatum F/2 15 100 5 cylindrical - chains Eucampia groenlandica K + Si 4 10 40 cylindrical - chains Arctic / Beaufort Sea Helicotheca sp. K + Si

Wadden Sea Station Sylt
The AWI’s new experimental facility on Sylt makes it possible to simulate the effects of climate change on coastal ecosystems.