SPECIAL CALL: The International Ocean Discovery Program (IODP) is seeking scientists from U.S. institutions with expertise in the following disciplines to apply for Expedition 400: paleomagnetism. The deadline to apply for this special call is November 2, 2022 at 11:59 PM EDT.

The International Ocean Discovery Program (IODP) is now accepting applications for scientific participants on Expedition 400, NW Greenland Glaciated Margin, aboard the JOIDES Resolution. To learn more about the scientific objectives of this expedition and how to apply to sail, watch a recording of the informational webinar (click here to access)

The sea-level consequences of anthropogenic climate forcing hinge on how the polar ice sheets respond to global warming. If fully melted the Greenland Ice Sheet has the potential to raise sea-level by >7 m. We know very little of its long-term responses to past climate warming or its role in Earth’s climate system. IODP Expedition 400 seeks to address current knowledge gaps in the evolution and variability of the northern Greenland Ice Sheet (NGrIS).

The key science objectives are to: 1) determine maximum and minimum NGrIS configurations during the Pleistocene, from shelf edge glaciation to hypothesized complete ice loss, e.g. during super-interglacials; 2) test the glacial response to pCO2 across the early ice house stage of the middle Cenozoic; 3) unravel NGrIS erosion history and sedimentary response across major transitions (e.g., Mid-Miocene Transition and Mid-Pleistocene Transition); and 4) reconstruct the Pliocene ocean circulation and northward heat advection through Baffin Bay and potential Arctic ocean gateways.

These objectives will be accomplished by transect-drilling at seven sites to depths of 300-1000 m across the northwest Greenland margin into Baffin Bay. The seven sites will provide a composite stratigraphic succession from Oligocene through the Quaternary. The key targets are: (a) a continuous Pleistocene succession representing a deep water channel-drift that forms the distal part of the Melville Bay Trough Mouth Fan; (b) multiple intervals of potential interglacial deposits preserved within intra-shelf depressions; (c) contourite deposits of likely Pliocene age, accessible below a thin glacigenic cover; and (d) a hemi-pelagic basin succession of likely Miocene age exposed by glacial erosion on the inner shelf. Downhole wireline logging is planned for several sites.

The expedition will take place from 12 August to 12 October 2023.

This is a special call for scientists with expertise in paleomagnetism. We encourage applications from all qualified scientists. The JOIDES Resolution Science Operator (JRSO) is committed to a policy of broad participation and inclusion, and to providing a safe, productive, and welcoming environment for all program participants. We are especially interested in recruiting scientists keen to engage in multidisciplinary research. Good working knowledge of the English language is required.

U.S.-affiliated scientists interested in participating in this expedition should apply to sail through the U.S. Science Support Program – click here to review the application process and link to the USSSP Application Portal. The deadline to apply for this special call is  November 2, 2022.

For questions, please email usssp@ldeo.columbia.edu.