Latest posts tagged with #POLARSTERN on Bluesky
Studentin Pinar Dogantekin auf dem Meereis vor dem Forschungsschiff "Polarstern". Foto: Pinar Dogantekin
Masterarbeit im "ewigen Eis": #TUBraunschweig Studentin Pinar Dogantekin ist mit dem Forschungsschiff #Polarstern im Südpolarmeer unterwegs. Sie begleitet als einzige Journalistin eine #Antarktis -Expedition des @awi.de. Außerdem schreibt sie auf dem Schiff ihre Masterarbeit.
👉 lnk.tu-bs.de/MmX7Y5
The #Polarstern SWOS #expedition to the #Antarctic Weddell Sea 🚢 🇦🇶 has started. During the weekend we left Punta Arenas 🇨🇱 and are now crossing the famous Drake Passage. Let's hope it is not getting to wavy 🌊 You can follow us under follow-polarstern.awi.de
Polarstern in the western Weddell Sea (Photo: Ilka Peeken) With the departure of the research vessel Polarstern from Punta Arenas (Chile) scheduled for this weekend, the "Summer Weddell Sea Outflow Study" (SWOS) international expedition will commence. Up to early April, a multidisciplinary international research team will investigate the northwestern region of the Weddell Sea – an area of central importance for the global climate and ocean system, but one that can only be explored on site by research icebreakers such as the Polarstern due to challenging sea ice conditions.
Polarstern in western Weddell Sea (Photo: Ilka Peeken) For a long time, the sea ice extent in Antarctica was observed to be relatively stable – unlike in the Arctic, where the summer ice extent has shrunk by around 12 per cent per decade since satellite records began in 1979. As from around 2017, however, significant changes have been observed in the north-western Weddell Sea: the summer sea ice extent has declined sharply, presumably as a result of warmer surface water. “The aim of SWOS is to investigate why sea ice in Antarctica has declined so sharply in recent years and how this is impacting the ecosystem,” as Prof. Dr Christian Haas from the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) stated, who is leading the current Polarstern expedition. At the same time, the sea ice physicist reports that an unexpected situation has arisen this year: “Ironically, there is currently an unusually large amount of ice in the western Weddell Sea, which may be a normal fluctuation without contradicting the trend. Consequently, it remains to be seen whether we will be able to penetrate deep into the south as planned – meaning that we will adapt our questions to the prevailing conditions en route and develop them accordingly.”
Polarstern in western Weddell Sea (Photo: Ilka Peeken) The SWOS expedition aims to collect comprehensive observations for the first time from the seabed to the atmosphere along the northwestern Weddell Sea continental slope, on the shelf and in the vicinity of the Larsen C Ice Shelf. The focus is on the interactions between sea ice, ice shelves and the ocean, as well as their impacts on hydrography, nutrient balance and carbon fluxes. The research team is recording ecological processes in the ice and on the seabed, as well as ecological gradients depending on sea ice conditions. In addition, the regional sea ice thickness distribution and snow properties will be measured, water masses characterised and exchange processes between the shallow shelf and deep-sea basins investigated. “It is not possible to answer many of our questions by satellites alone,” explains Christian Haas. We need in-situ observations to understand the state of the sea ice, the currents and the biological communities in the water and on the seabed – as well as to be able to assess whether the sea ice could possibly disappear entirely in the near future.” The collected data will also be used to improve satellite-based sea ice observations.
(Photo: Ilka Peeken) The research is taking place at a critical time, when the Antarctic climate system may be entering a phase of accelerated sea ice loss and increasing ocean warming. “We are operating in a region that has been shaped by the earlier ice shelf collapses of Larsen A and B, as well as recent changes to Larsen C,” says Ilka Peeken. “It is precisely under these conditions that we have the opportunity to obtain key data on biodiversity changes, ocean currents and sea ice conditions in the Weddell Sea.” The results will be incorporated into ongoing long-term studies, while serving as future projections of the Antarctic system and thereby contributing to the further development of Earth System Models A wide range of modern and conventional measurement systems are being deployed, including helicopters to measure sea ice thickness, microstructure probes, CTD rosettes, various trawls and bottom sampling and observation devices, as well as autonomous platforms. “I am very much looking forward to investigating the extent to which the ice in the north-western Weddell Sea has changed. I first visited the region over 30 years ago, and seven years ago I was there for the last time with the Polarstern when the sea ice began to change,” as Christian Haas relates. For Ilka Peeken, the close interconnection between the disciplines is the most exciting aspect of the expedition: “Although this region is one of the most inhospitable on Earth, it is teeming with life. Investigating the contribution of the sea ice ecosystem to the carbon cycle is a particular highlight for me.” The SWOS expedition is intended to make decisive contributions to understanding a key area of the Antarctic ice-ocean system – at a time of profound change whose effects extend far beyond Antarctica. On concluding the expedition, the Polarstern will embark on its return journey across the Atlantic. The voyage will be used for student training and is scheduled to wind up in Bremerhaven in mid-May.
Setting sail to a region in rapid transition.
The SWOS #Polarstern expedition launches investigations into the rapid changes of sea ice and ecosystems in the Antarctic Weddell Sea.
@awi.de @helmholtz.de
follow-polarstern.awi.de?lang=en
🚢 Do you want to follow the #Polarstern expedition?
Join oceanographer Jacqueline Stefels and marine biologist Maria van Leeuwe (rug.nl) on their journey in the Antarctic.🗺️
Go check the live-stream 👇
🔗 follow-polarstern.awi.de/expedition/a...
🧪 #SciComm
Checking the water beneath the ice with a camera| Image Jacqueline Stefels
The icebreaker Polarstern | Image Jacqueline Stefels
Microalgae under the microscope | Image Jacqueline Stefels
🐧‘To make the #WeddellSea a protected marine area, we need to demonstrate that what the area has to offer is of great value to humans.’
Jacqueline Stefels (@rug.nl) boarded the #Polarstern of @awi.de for an expedition to Antarctica.❄️
Curious? Read more 👇
🔗 www.rug.nl/fse/news/cli...
🧪 #SciComm
Since 1983, Leonid #Pshenychnov has gone on 21 expeditions to Antarctica, working on Soviet, Ukrainian, Australian and German research vessels, including the #Polarstern of the Alfred Wegener Institute @awi.de. 2/2
www.awi.de/en/fleet-sta...
Forschungseisbrecher Polarstern im BlueBrixx Onlineshop gelistet
www.steine-kanal.de/forschungsei...
#bluebrixx #polarstern #ankündigung #helmholtz #lizenz #eisbrecher #schiff #klemmbausteine #steinekanal
Modenschau auf dem Eis. Foto: © Amy Lauren/ Alfred-Wegener-Institut
Türchen 22: Kunst, Musik und Alltag an Bord
Neben Jam-Sessions treffen Forschung, Kunst und Mode im Blue Saloon der #Polarstern aufeinander. Filmemacherin Amy Lauren ließ wissenschaftliche Bilder auf Stoff drucken. Die einmaligen Outfits entstanden aus Daten früherer Expeditionen. #CONTRASTSXMAS
Das Forschungsschiff Polarstern im Fokus. Links daneben das Flugzeug Polar 6. Foto: © Michi Haugeneder / Alfred-Wegener-Institut
Türchen 19: Drei Wochen, dreimal in „Region 3" gemessen – ein Meilenstein!
Zum zweiten Mal überfliegt #Polar 6 (von Station Nord auf Grönland) die #Polarstern. Messungen aus der Luft lassen sich mit unseren Daten verknüpfen. Wir sind auf dem Weg nach Osten. Jetzt heißt es Endspurt. #CONTRASTSXMAS
Von Bord des Forschungsschiffs Polarstern wird ein Wetterballon in den grauen Himmel über dem arktischen Meereis aufgelassen. Foto: © Sandro Dahlke/ Alfred-Wegener-Institut
Türchen 18: Unser Temperaturrekord: + 12°C
Gemessen nur 300 Meter über der #Polarstern. Alle 25 Meter wird es 1°C wärmer - warme Luft strömt aus dem Süden zu uns. Täglich steigen Wetterballons auf - die Daten verbessern Wettermodelle weltweit und auch die Vorhersage in #Deutschland. #CONTRASTSXMAS
🚢 Diese Woche ist der Eisbrecher #Polarstern von Namibia in Richtung Antarktis aufgebrochen. Die Forschungsexpedition ins antarktische Weddellmeer wird Langzeitstudien zur antarktischen #Biodiversität durchführen.
Mehr Infos & Link zur PM im Originalpost von @awi.de ⏬
🚢 An international research expedition is setting off for #Antarctica to collect data on #biodiversity for a potential marine protected area.
🎯 The ecologist Heike Link is the leader of the 46-member team on board the research vessel #Polarstern.
Read more 👇
#NewsDE
An image of the research vessel Polarstern
An image of sea ice
An image of an Antarctic Krill
An image of 5 King Penguins standing next to each other
🧪The #research vessel #Polarstern will soon embark on an #expedition to #Antarctica! Two of #GELIFES’ researchers on board, along with a larger crew of scientists, want to make the #WeddellSea a marine protected area ⬇️⬇️
rug.nl/research/gelifes/_news/2025/20251204-stefels
Messgeräte und Sensoren auf dem Deck der Polarstern. Foto: Linnu Bühler/ Alfred-Wegener-Institut
Türchen 2: VAMPIRE an Board!
Keine Sorge – auf der #Polarstern gibt es keine echten Vampire. VAMPIRE ist unser Team für Wasserdampf-Messungen in der Arktis. VAMPIRE steht für „Water Vapour, Mixed-Phase Clouds and Sea Ice Emissivity over the Central Arctic Ocean”. #CONTRASTSXMAS
Gruppenfoto vom Team der CONTRASTS-Expedition Foto: Marcel Nicolaus/ Alfred-Wegener-Institut
Türchen 1: Start der #CONTRASTS-Expedition
Heute beginnt unsere Expedition Norwegen in Richtung #Arktis mit unserem Forschungsschiff #Polarstern. In den nächsten neun Wochen werden 51 Wissenschaftler:innen das Schmelzverhalten von verschiedenen Meereis-Typen erforschen. #CONTRASTSXMAS
VesselAlert
Name: POLARSTERN
MMSI: 211202460
Callsign: DBLK
Type: Other
Flag: Germany
Seen: 14-Nov-2025 07:48:02 CET
Status: under way using engine
Speed: 10.9 kts
Heading: 250 deg
Dest.: DEBRV_>>_NLRTM
Distance: 33.5 nm
Signal RSSI: -13.2 dBFS
Ship AIS VesselAlert © kx1t - link
VesselAlert
Name: POLARSTERN
MMSI: 211202460
Callsign: DBLK
Type: Other
Flag: Germany
Seen: 14-Nov-2025 05:51:21 CET
Status: under way using engine
Speed: 10.7 kts
Heading: 251 deg
Dest.: DEBRV_>>_NLRTM
Distance: 33.0 nm
Signal RSSI: -15.6 dBFS
Ship AIS VesselAlert © kx1t - link
Das Leih-Fahrrad Polarstern vom Mobikitätskonzept Smile24 und davor ein Tret-Roller, geparkt vor einem mehrstöckigen, modernen Haus; das Wetter etwas düster und bewölkt.
Wo konnte man denn sonst mit der #Polarstern Brötchen holen fahren?
#Biketooter #Fahrrad #nahverkehr #noCars (2/2)
Das Leih-Fahrrad Polarstern vom Mobikitätskonzept Smile24 und davor ein Tret-Roller, geparkt vor einem mehrstöckigen, modernen Haus; das Wetter etwas düster und bewölkt.
Schnüff.
Das Bikeleasing-Modell von #Smile24 wird jedenfalls im Raum Schlei-Ostsee eingestellt und übrige Bus- und On-demand-Dienste zwar weitergeführt, aber im Umfang beschränkt.
Das Geld, verdammt, immer das Geld... Hoffentlich wird's nicht gänzlich […]
[Original post on satzfetzen.de]
The last working area of the @awi.de expedition PS150 on board #Polarstern is located close to the coast of northeast Greenland, at the floating terminus of the 79 North Glacier, offering amazing views of the fjords, mountains and glaciers.
Read more: www.instagram.com/p/DP56vKLiPvc
#Polar Researchers Fear an #Ecological Collapse in the #Arctic.
The research ship #Polarstern spent two months in the ice of the Arctic this summer. What they found could be evidence of an ecological collapse. www.spiegel.de/internationa...
📊 Die Top 4 Beiträge der letzten Woche mit den meisten Boosts sind:
1. Wegen möglicher #Brandgefahr ruft #Stellantis über 85000 #Verbrenner-#Fahrzeuge zurück.
https://mastodon.online/@tinoeberl/115215360026260064
2. Das #Forschungsschiff #Polarstern bekommt ein innovatives Antriebssystem […]
In the last blog post from the #CONTRASTS expedition, #SLF employee Matthias Jaggi writes about the last few weeks on the #research vessel #Polarstern: www.slf.ch/en/news/the-...
📷️ R. Dadic / M. Jaggi
CTD rosette in the water over the side of the ship
Polarstern leaving an opening in the sea ice while cruising through thin sea ice
Work continues on the @awi.de expedition PS150 onboard #Polarstern, and we are lucky to enjoy some days with amazing views while conducting CTD sections across the East Greenland Current in the vicinity of northern #Greenland. Read more: www.instagram.com/p/DOyCGI1CHOE/
Das #Forschungsschiff #Polarstern bekommt ein innovatives Antriebssystem mit drehbaren #Azimutpropellern, Hybridtechnik und #Methanol-fähigen Motoren.
Es soll leise, effizient und emissionsarm durch #Polarregionen führen. Ein #Batteriesystem ermöglicht sogar temporär emissionsfreien Betrieb […]
