A5090321341- Arctic and Antarctic ice dynamics
- Methane Hydrates and Related Phenomena
- Geological Studies and Exploration
- Cryospheric studies and observations
- Oceanographic and Atmospheric Processes
- Atmospheric and Environmental Gas Dynamics
- Geophysics and Gravity Measurements
- Geology and Paleoclimatology Research
- Ionosphere and magnetosphere dynamics
Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung
2021-2024
Arctic Ocean properties and processes are highly relevant to the regional global coupled climate system, yet still scarcely observed, especially in winter. Team OCEAN conducted a full year of physical oceanography observations as part Multidisciplinary drifting Observatory for Study Climate (MOSAiC), drift with sea ice from October 2019 September 2020. An international team designed implemented program characterize system unprecedented detail, seafloor air-sea ice-ocean interface,...
Abstract. Satellite altimetry missions flying over the ice-covered Arctic Ocean have opened possibility of further understanding changes in ocean beneath sea ice. This requires complex processing satellite signals emerging from surface leads within ice, with efforts to generate consistent Arctic-wide datasets height ongoing. The aim this paper is provide and assess a novel gridded dataset anomaly geostrophic velocity, which incorporates both open areas Arctic. Data CryoSat-2 mission period...
Abstract. The Greenland Ice Sheet has steadily lost mass over the past decades, presently representing second-largest single contributor to global sea-level rise. Even glaciers draining Northeast ice stream have been observed retreat and thin. Here, we present a comprehensive study of processes affecting being affected by balance marine terminating peripheral in Greenland. Our focus is on 79N Glacier (79NG), which hosts Greenland’s largest floating tongue. We provide new insight into surface...
Abstract. Satellite altimetry missions flying over the ice-covered Arctic Ocean have been opening possibility to further understand recent changes in surface circulation. The use of these data has however deferred by need for dedicated processing, with efforts generate consistent Arctic-wide datasets ongoing. aim this paper is provide and assess a new gridded dataset sea height anomaly geostrophic velocity, extending both open ocean areas Arctic. Data from Cryosat-2 mission period 2011–2020...
Abstract. In recent decades the decline of Arctic sea ice has modified vertical momentum fluxes from atmosphere to and ocean, thereby affecting surface circulation. past ten years satellite altimetry contributed understand these changes. However, data ice-covered regions require dedicated processing, originating inconsistency between open ocean in terms biases, corrections coverage. Thus, efforts generate consistent Arctic-wide datasets are still required enable study Ocean circulation at...
<p>Recent decades have seen a strong intensification of major circulation systems in the Arctic Ocean, namely Beaufort Gyre and Transpolar Drift. Observing studying seasonal, interannual decadal variability large-scale Ocean surface is key element to understand changes climate-relevant export both sea ice fresh water from Arctic. However, lack in-situ ocean velocity observations prevented further investigation until recently.</p><p>In past decade,...
<p>In recent decades, the retreat of Arctic sea ice has modified vertical momentum fluxes from atmosphere to and ocean, in turn affecting surface circulation. Satellite altimetry contributed past ten years understand these changes. Most oceanographic datasets are however date limited either open ocean ice-covered regions, given that different techniques required track height over two surfaces. Hence, efforts generate unified Arctic-wide still further basin-wide studies Ocean...