Arctic Field Projects



Project Title: Swedish Polar Research Secretariat (SPRS) funded cruise aboard the Swedish Icebreaker Oden (Award# SPRSOden)

PI: Lindgren, Åsa Kristina ()
Phone:  
Institute/Department: Stockholm University,  
IPY Project?
Funding Agency: Intl\SE\SPRS
Program Manager: Dr. Frank Rack (frack@nsf.gov )
Discipline(s): | Oceanography |

Project Web Site(s):
Project: https://polar.se/en/about-polar-research/expeditio...
Initiative: https://polarforskningsportalen.se/en/arctic/exped...

Science Summary:
Ryder 2019 is a research expedition to the remote Ryder Glacier in northwest Greenland on board the Swedish icebreaker Oden. By mapping the area around the glacier, researchers can find patterns and causes of historical changes of the glacier. This knowledge can help us understand how the marine cryosphere is affected by climate change. The Ryder 2019 expedition with the Swedish icebreaker Oden is a multidisciplinary expedition, spanning the fields of atmospheric chemistry and physics, biology, climatology, ecology, genomics, glaciology, oceanography, marine geology, geophysics and geochemistry. The overarching goal is to investigate the dynamics and development of the marine cryosphere and ocean conditions over time in the marine realm of Ryder Glacier; more specifically in the Sherard Osborne Fjord and adjacent area of northern Nares Strait and the southern Lincoln Sea. Earth’s marine cryosphere includes glaciers extending into the ocean, ice sheets with their base suppressed below sea level, sea ice, gas hydrates and subsea permafrost. Scientific motivation One of the primary scientific motivations of the expedition is related to the role of outlet glaciers, such as Ryder Glacier, draining the Greenland Ice Sheet into the ocean. The dynamics of Greenland’s outlet glaciers represent an essential, but poorly constrained, part of our understanding of future sea-level rise in a warming climate. Critical to their stability are the roles of sea ice, floating ice tongues, bedrock and the shape of the seafloor. The goal is to collect contextual data including information about the physical shape of the seafloor and its uppermost structure and geological composition, ocean conditions, as well as information about meltwater influx from the glaciers in the survey area. These data are needed from this poorly explored region to better constrain the numerical models needed to predict and assess the potential contribution of northern Greenland’s Ice Sheet to future sea-level rise. Scientific questions Some of the more specific key scientific questions include: What are the causes for observed patterns and sudden dynamic changes of the marine cryosphere of northern Greenland? What is the potential contribution to global sea-level rise from the northern sector of the Greenland Ice Sheet in a warming climate? What are the dynamic roles of floating ice tongues and sea ice for the stability of northern Greenland outlet glaciers? How does geology (bedrock and/or the shape of the seafloor) control the retreat dynamics of the northern Greenland Ice Sheet? What is the role in accelerating glacial melting of inflowing warmer water of Atlantic origin towards the outlet glaciers? What are the effects of glacial meltwater for the nutrient budget and productivity of the coastal marine ecosystem? What are the effects of glacial meltwater on the CO2 system and ocean acidification? Petermann 2015 The Ryder 2019 project is a continuation of the expedition to the Petermann Glacier in 2015. During the Petermann 2015 expedition, the Petermann Fjord and adjacent area of Hall Basin were investigated. The setup for the Ryder 2019 expedition is nearly identical.

Logistics Summary:
The Ryder 2019 expedition with the Swedish icebreaker Oden is a multidisciplinary expedition, spanning the fields of atmospheric chemistry and physics, biology, climatology, ecology, genomics, glaciology, oceanography, marine geology, geophysics and geochemistry. The overarching goal is to investigate the dynamics and development of the marine cryosphere and ocean conditions over time in the marine realm of Ryder Glacier; more specifically in the Sherard Osborne Fjord and adjacent area of northern Nares Strait and the southern Lincoln Sea. Earth’s marine cryosphere includes glaciers extending into the ocean, ice sheets with their base suppressed below sea level, sea ice, gas hydrates and subsea permafrost. One of the primary scientific motivations of the expedition is related to the role of outlet glaciers, such as Ryder Glacier, draining the Greenland Ice Sheet into the ocean. The dynamics of Greenland’s outlet glaciers represent an essential, but poorly constrained, part of our understanding of future sea-level rise in a warming climate. Critical to their stability are the roles of sea ice, floating ice tongues, bedrock and the shape of the seafloor. The goal is to collect contextual data including information about the physical shape of the seafloor and its uppermost structure and geological composition, ocean conditions, as well as information about meltwater influx from the glaciers in the survey area. Data is needed from this poorly explored region to better constrain the numerical models needed to predict and assess the potential contribution of northern Greenland’s Ice Sheet to future sea-level rise. The Ryder 2019 project is a continuation of the expedition to the?Petermann Glacier?in 2015. During the Petermann 2015 expedition, the Petermann Fjord and adjacent area of Hall Basin were investigated. The setup for the Ryder 2019 expedition is nearly identical. The Ryder Glacier cruise will take place from August 5- September 11, 2019. The team will utilize the Swedish I/B Oden via the port at Thule Air Base (TAB) to embark on August 5 and return on September 11. Four researchers and five Oden crew members will remain in Thule after the expedition to complete freight shipping and conduct a crew exchange. They will redeploy via AMC flights to BWI.

CPS will provide Special Assignment Airlift Missions (SAAM) between Stewart Air Base and Thule Air Base for cargo and personnel transport, Thule clearance support, USAF coordination, AMC and Embassy Air Greenland ticketing to/from TAB, lodging and NSF resources in Thule, freight handling, lodging and transport support in Newburgh, and CPS labor and subcontractor (TAB base contractor) support for project planning and port call logistics. All other support with be organized and paid for by research grant.
SeasonField SiteDate InDate Out#People
2019Arctic Ocean and Seas - Arctic Ocean08 / 05 / 2019 09 / 11 / 201991
2019Greenland - Thule08 / 05 / 2019 09 / 13 / 201991
 


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