United States
Scientific Committee on Antarctic Research

Another Fall AGU session


C045: Subglacial Access Research Drilling: results and future

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Session ID#: 8525

Session Description:
Hot water drilling including clean access technologies provides a means of observing, measuring and sampling the subglacial and sub-ice shelf environment. Shared platforms make for integrated glaciological, geological, oceanographic and biological study.

The WISSARD (Whillans Ice Stream Subglacial Access Research Drilling) project drilled the downstream end of the Whillans Ice Stream in West Antarctica, penetrating Subglacial Lake Whillans (2013) and the Ross Ice Shelf grounding zone (2015), accomplishing a suite of surface, borehole and bottom measurements, imaging and recovery of water, biological specimens, basal ice and sediment cores. Subglacial lake microbial and marine macrofaunal communities were documented and sedimentological and glaciological data are providing evidence of basal melting, sediment flux, and a changing grounding zone depositional system.

This session will provide a forum to present and integrate results from all subglacial research projects (not limited to WISSARD), including survey data and ideas for future subglacial bed access projects.

Primary Convener: Reed P Scherer, Northern Illinois Univ, De Kalb, IL, United States
Conveners: Jill Mikucki, University of Tennessee, Knoxville, TN, United States and Slawek M Tulaczyk, University of California Santa Cruz, Earth and Planetary Sciences, Santa Cruz, CA, United States

* B - Biogeosciences
* GC - Global Environmental Change
* PP - Paleoceanography and Paleoclimatology

Index Terms:
0456 Life in extreme environments https://agu.confex.com/agu/fm15/preliminaryview.cgi/start?words=0456 [BIOGEOSCIENCES]
0728 Ice shelves https://agu.confex.com/agu/fm15/preliminaryview.cgi/start?words=0728 [CRYOSPHERE]
0730 Ice streams https://agu.confex.com/agu/fm15/preliminaryview.cgi/start?words=0730 [CRYOSPHERE]
1621 Cryospheric change https://agu.confex.com/agu/fm15/preliminaryview.cgi/start?words=1621 [GLOBAL CHANGE]