All articles tagged with #ice shelf
Originally Published 2 days ago — by The Daily Galaxy
Scientists used autonomous underwater vehicles to map the underside of Antarctica's Dotson Ice Shelf, revealing complex terrain and uneven melting patterns driven by warm ocean currents. During a follow-up mission in 2024, the vehicle disappeared, raising concerns about the stability of ice shelves and their role in sea level rise, as melting accelerates in specific areas.
Originally Published 17 days ago — by Earth.com
An autonomous submarine exploring Antarctica's Dotson Ice Shelf discovered complex under-ice structures and warm water channels that influence melting patterns, but the mission ended with the submarine's disappearance, highlighting the challenges and importance of understanding ice-ocean interactions for predicting sea level rise.
Originally Published 2 months ago — by Phys.org
A new study reveals that cracks and fractures in the Thwaites Eastern Ice Shelf, part of the rapidly changing 'Doomsday Glacier' in Antarctica, have been progressively weakening the ice shelf over two decades, leading to accelerated destabilization and potential implications for global sea-level rise.
Originally Published 5 months ago — by Earth.com
Scientists are studying the rapidly breaking apart Thwaites Glacier in Antarctica, which could significantly raise global sea levels if it collapses. Using new satellite data analysis methods, researchers aim to better predict when and how these ice shelves will fracture, with the goal of understanding and potentially mitigating catastrophic sea level rise.
Originally Published 6 months ago — by Indian Defence Review
A new study challenges the long-held belief that the Arctic was covered by a massive, permanent ice shelf during ice ages, instead revealing evidence of seasonal sea ice and open water, which allowed marine life to persist and suggests a more dynamic Arctic history. This has implications for understanding past climate behavior and future Arctic changes.
Originally Published 6 months ago — by SciTechDaily
A new study challenges the long-held belief that a thick, permanent ice shelf once covered the Arctic, revealing instead that the region was characterized by seasonal sea ice over the past 750,000 years, allowing for open water and marine life even during cold periods, which has important implications for understanding past and future climate change.
Originally Published 6 months ago — by Indian Defence Review
In 2022, a scientific mission using the autonomous underwater vehicle Ran explored beneath Antarctica's Dotson Ice Shelf, revealing new insights into glacier melting processes and ice structures, but the submersible disappeared during a subsequent deployment, leaving some mysteries unsolved.
Originally Published 6 months ago — by Yahoo
An autonomous underwater vehicle named 'Ran' explored the underside of the Dotson Ice Shelf in West Antarctica, revealing complex melting patterns and topography, but was lost during a subsequent mission, highlighting the challenges of deep-sea ice shelf research crucial for understanding climate change impacts.
Originally Published 1 year ago — by Indian Defence Review
A submersible named Ran, used to explore the Dotson Ice Shelf in Antarctica, has mysteriously vanished after discovering complex underwater structures and melting patterns. The disappearance poses a setback for Antarctic research, highlighting the challenges of exploring remote regions. Despite this, the data collected in 2022 has provided valuable insights into ice shelf dynamics and climate change, emphasizing the need for continued innovation in underwater exploration technology.
Originally Published 1 year ago — by The Debrief
Researchers from Washington University in St. Louis have discovered that the Ross Ice Shelf in Antarctica is jolted daily by movements of ice streams, affecting its stability. This previously unnoticed phenomenon, which can trigger icequakes and fractures, highlights potential impacts on global sea levels. The study reveals that these slip events, causing the ice shelf to move several centimeters once or twice a day, have likely gone undetected for over a century. The findings underscore the importance of understanding ice shelf dynamics in the context of climate change.
Originally Published 1 year ago — by Daily Kos
Scientists have discovered that a fracture at the Pine Island Glacier in Antarctica opened at a staggering speed of 80 miles per hour, shedding light on the rapid changes occurring in the region's ice shelves and the potential impact on sea level rise. This finding underscores the urgency of studying glacial dynamics and the need for further research to understand the implications for the stability of the Antarctic ice sheet.
Originally Published 1 year ago — by SciTechDaily
Researchers have observed the fastest large-scale ice shelf breakage event on the Pine Island Glacier in Antarctica, with a 6.5-mile crack forming in about 5 and a half minutes, opening at about 80 miles per hour. This study sheds light on the physics of glacier fracture and the role of seawater in controlling the speed of ice shelf breakage, providing crucial insights for understanding future sea-level rise due to melting glaciers in Greenland and Antarctica.
Originally Published 2 years ago — by Daily Kos
A stable Antarctic ice shelf has collapsed due to reaching a "glaciological tipping point," highlighting the impact of climate change on the region.