USAP-DC

Like no other region on Earth, the northern Antarctic Peninsula represents a spectacular natural laboratory of climate change and provides the opportunity to study the record of past climate and ecological shifts alongside the present-day changes in one of the most rapidly warming regions on Earth. This award supports the cryospheric and oceano-graphic components of an integrated multi-disciplinary program to address these rapid and fundamental changes now taking place in Antarctic Peninsula (AP). By making use of a marine research platform (the RV NB Palmer and on-board helicopters) and additional logistical support from the Argentine Antarctic program, the project will bring glaciologists, oceanographers, marine geologists and biologists together, working collaboratively to address fundamentally interdisciplinary questions regarding climate change. The project will include gathering a new, high-resolution paleoclimate record from the Bruce Plateau of Graham Land, and using it to compare Holocene- and possibly glacial-epoch climate to the modern period; investigating the stability of the remaining Larsen Ice Shelf and rapid post-breakup glacier response ? in particular, the roles of surface melt and ice-ocean interactions in the speed-up and retreat; observing the contribution of, and response of, oceanographic systems to ice shelf disintegration and ice-glacier interactions. Helicopter support on board will allow access to a wide range of glacial and geological areas of interest adjacent to the Larsen embayment. At these locations, long-term in situ glacial monitoring, isostatic uplift, and ice flow GPS sites will be established, and high-resolution ice core records will be obtained using previously tested lightweight drilling equipment. Long-term monitoring of deep water outflow will, for the first time, be integrated into changes in ice shelf extent and thickness, bottom water formation, and multi-level circulation by linking near-source observations to distal sites of concentrated outflow. The broader impacts of this international, multidisciplinary effort are that it will significantly advance our understanding of linkages amongst the earth's systems in the Polar Regions, and are proposed with international participation (UK, Spain, Belgium, Germany and Argentina) and interdisciplinary engagement in the true spirit of the International Polar Year (IPY). It will also provide a means of engaging and educating the public in virtually all aspects of polar science and the effects of ongoing climate change. The research team has a long record of involving undergraduates in research, educating high-performing graduate students, and providing innovative and engaging outreach products to the K-12 education and public media forums. Moreover, forging the new links both in science and international Antarctic programs will provide a continuing legacy, beyond IPY, of improved understanding and cooperation in Antarctica.

Person	Role
Truffer, Martin	Investigator
Gordon, Arnold	Investigator
Huber, Bruce	Co-Investigator
Mosley-Thompson, Ellen	Investigator
Leventer, Amy	Investigator
Vernet, Maria	Investigator
Smith, Craig	Investigator
Thompson, Lonnie G.	Investigator

Antarctic Integrated System Science	Award # 0732983
Antarctic Organisms and Ecosystems	Award # 0732983
Antarctic Integrated System Science	Award # 0732711
Antarctic Organisms and Ecosystems	Award # 0732711
Antarctic Integrated System Science	Award # 0732655
Antarctic Integrated System Science	Award # 0732651
Antarctic Integrated System Science	Award # 0732625
Antarctic Integrated System Science	Award # 0732602

USAP-0732711
truffer_0732602
NSF-ANT07-32651
NSF-ANT07-32625_1
NSF-ANT07-32983_1
LARISSA_0732655

None in the Database

Repository	Title (link)	Format(s)	Status
R2R	NBP1001 cruise data	Excel	exist
R2R	NBP1203 cruise data	Excel	exist
AMGRF	Sediment samples (full data link not provided)	Excel	bad_url
MGDS	Biology Species Abundance from the Larsen Ice Shelf acquired during the Nathaniel B. Palmer expeditions NBP1001 and NBP1203	Excel	exist
USAP-DC	Abrupt Environmental Change in the Larsen Ice Shelf System (LARISSA) - Marine Ecosystems	Excel	exist
USAP-DC	Bruce Plateau Accumulation O18 2009-1900	Excel	exist
USAP-DC	Easten Antarctic Peninsula Surface Sediment Diatom Data	Excel	exists
USAP-DC	Megafauna Species Abundance Raw Data from the Larsen Ice Shelf acquired during the Nathaniel B. Palmer expedition NBP1001	Excel	exists
USAP-DC	Macrofauna Species Abundance Raw Data from the Larsen Ice Shelf acquired during the Nathaniel B. Palmer expedition NBP1001	Excel	exists
USAP-DC	Radioisotope data (C-14 and Pb-210) from bulk sediments, Larsen A Ice Shelf	Excel	exists
USAP-DC	Processed CTD Data from the Larsen Ice Shelf in Antarctica acquired during the Nathaniel B. Palmer expedition NBP1001	Excel	exists
USAP-DC	Processed ship-based LADCP Sonar Data from the Larsen Ice Shelf in Antarctica acquired during the Nathaniel B. Palmer expedition NBP1001	Excel	exists
USAP-DC	Processed ship-based LADCP Sonar Data from the Larsen Ice Shelf near Antarctica acquired during the Nathaniel B. Palmer expedition NBP1203	Excel	exists
USAP-DC	Processed CTD Data from the Larsen Ice Shelf near Antarctica acquired during the Nathaniel B. Palmer expedition NBP1203	Excel	exists
USAP-DC	LMG13-11 JKC-1 Paleoceanographic data	Excel	exists

1. Grange, L. J., C. R. Smith, D. J. Lindsay, B. Bentlage and M.J. Youngbluth. 2017. High Abundance of the Epibenthic Trachymedusa Ptychogastria polaris Allman, 1878 (Hydrozoa, Trachylina) in Subpolar Fjords Along the West Antarctic Peninsula. PLoS ONE 12(1): e0168648. (doi:10.1371/journal.pone.0168648)
2. Kyrmanidou, A., Vadman, K. J., Ishman, S. E., Leventer, A., Brachfeld, S., Domack, E. W., & Wellner, J. S. (2018). Late Holocene oceanographic and climatic variability recorded by the Perseverance Drift, northwestern Weddell Sea, based on benthic foraminifera and diatoms. Marine Micropaleontology, 141, 10–22. (doi:10.1016/j.marmicro.2018.03.001)
3. Amon, D. J., Wiklund, H., Dahlgren, T. G., Copley, J. T., Smith, C. R., Jamieson, A. J., & Glover, A. G. (2014). Molecular taxonomy ofOsedax(Annelida: Siboglinidae) in the Southern Ocean. Zoologica Scripta, 43(4), 405–417. (doi:10.1111/zsc.12057)
4. Spaulding, N., Lucas, J., Huber, B., & Leventer, A. (2020). Ice retreat in the eastern Antarctic Peninsula region: the application of diatoms for understanding climate change. Marine Micropaleontology, 101896. (doi:10.1016/j.marmicro.2020.101896)
5. Vernet, M., Geibert, W., Hoppema, M., Brown, P. J., Haas, C., Hellmer, H. H., … Verdy, A. (2019). The Weddell Gyre, Southern Ocean: Present Knowledge and Future Challenges. Reviews of Geophysics, 57(3), 623–708. (doi:10.1029/2018rg000604)
6. Porter, S. E., Parkinson, C. L., & Mosley‐Thompson, E. (2016). Bellingshausen Sea ice extent recorded in an Antarctic Peninsula ice core. Journal of Geophysical Research: Atmospheres, 121(23). (doi:10.1002/2016jd025626)
7. Cape, M. R., Vernet, M., Skvarca, P., Marinsek, S., Scambos, T., & Domack, E. (2015). Foehn winds link climate-driven warming to ice shelf evolution in Antarctica. Journal of Geophysical Research: Atmospheres, 120(21), 11,037–11,057. (doi:10.1002/2015jd023465)