Freshwater input and water mass interactions in the Uummannaq fjord system

• DOI: 10.5194/egusphere-egu23-11323
• Publication Date: 2023-02-26T01:25:31Z
• Authors: Leandro Ponsoni; Anouk Ollevier; Roeland Develter; Wieter Boone
• Keywords: Fjord; Greenland ice sheet

The climate is rapidly changing in the Arctic, where global warming reported to be about up four times average last two decades. Aligned with this Arctic Amplification, other climate-related phenomena are also changing, or bound change, on a regional scale. For instance, accelerated glaciers’ melting forcing transition of some glaciers from marine- land-terminating systems and, therefore, impacting balance freshwater input into oceans. As consequence, ocean processes (e.g., water masses (trans)formation, baroclinicity geostrophic currents) expected impacted.Within context, and as part “Innovative study high-resolution imaging glacier induced plankton dynamics West-Greenland fjords (IOPD)” project, we visited fjord system Uummannaq area, off Western Greenland, aboard R/V Sanna, 28/Jun 10/Jul/2022. In region, marked by both land- marine-terminating glaciers. During cruise, performed 47 hydrographic stations entire column 5 different - their mouth innermost accessible location. These complemented an offshore transect shelf edge.Based in-situ measurements described above, historical oceanographic state-of-the-art datasets for solid liquid provided Geological Survey Denmark Greenland (GEUS), aim at characterizing area perspective ongoing changes. More specifically, work addresses following questions (i) What long-term recent region? And, undergoing changes latest years? (ii) How quantitatively distributed within adjacent continental shelf? Are there differences between fjords? how do connections take place? (iii) terms (solid liquid) mass distribution If so, what these differences?