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Laurence (“Laurie”) Padman 1 Scott Springer 2 ; Rachael Mueller 3 ; Robin Muench 4

ESR Polar Science. Laurence (“Laurie”) Padman 1 Scott Springer 2 ; Rachael Mueller 3 ; Robin Muench 4 1 Corvallis, OR; 2 Seattle; 3 OSU PhD student; 4 “Retired” NASA subcontracts to Oregon State University (Gary Egbert, tidal inverse modeling)

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Laurence (“Laurie”) Padman 1 Scott Springer 2 ; Rachael Mueller 3 ; Robin Muench 4

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  1. ESR Polar Science Laurence (“Laurie”) Padman1 Scott Springer2; Rachael Mueller3;Robin Muench4 1Corvallis, OR; 2Seattle; 3OSU PhD student; 4“Retired” NASA subcontracts to Oregon State University (Gary Egbert, tidal inverse modeling) Scripps, UCSD (Helen Fricker, glaciology) Old Dominion (Mike Dinniman & John Klinck, sea ice modeling) Collaborative grant (NSF) with University of Miami, RSMAS (Tamay Ozgokmen)

  2. Padman Bio 1987: PhD: Oceanography, University of Sydney 1986-1997: Postdoc & Research Faculty, Oregon State Univ. 1997: Joined ESR, moved to Seattle 1998: Moved back to Corvallis; work at home Australian citizen Naturalized US citizen 1/20/2011 Married, 11 year-old son

  3. Tools • Satellite altimetry (ERS/Envisat and TOPEX/Poseidon radar, ICESat laser); • Numerical models (Regional Ocean Modeling System (ROMS); barotropic forward and inverse tide models (through OSU); • Fieldwork (microstructure profiling; CTD and moorings)

  4. Current funding NASA Antarctic tide modeling in support of ICESat and GRACE; Ice Shelf Frontal Zone: measurements and modeling; Representing sea ice response to tides and inertial forcing in Southern Ocean models. NSF Antarctic Bottom Water production by small-scale bathymetry and tides.

  5. Modeling effects of tides on lead fraction and air/ocean fluxes (Mainly Scott: help from Old Dominion U.)

  6. Modeling effects of tides on basal melting of ice shelves (Mainly Rachael; some Scott) Larsen C basal melt rates (m/year) No Tides Uniform w.c.t. Best bathy + tides

  7. Interannual variability and the ice shelf frontal zone from radar and laser satellite altimetry (Mainly Laurie: help from Scripps) ICESat laser altimeter tracks Repeat tracks showing advance and thinning on Filchner-Ronne Ice Shelf

  8. Publications: 2009 Fricker et al. (2009), Mapping the grounding zone of the Amery Ice Shelf, East Antarctica using InSAR. King et al. (2009), A 4-decade record of elevation change of the Amery Ice Shelf, East Antarctica. Gordon et al. (2009), Southern Ocean shelf slope exchange. Muench et al. (2009), A dense water outflow from the Ross Sea, Antarctica: Mixing and the contribution of tides. Muench et al. (2009), Impacts of bottom corrugations on a dense Antarctic outflow: The NW Ross Sea. Padman et al. (2009), Tides of the northwestern Ross Sea and their impact on dense outflows of Antarctic Bottom Water.

  9. Publications: 2010 Brunt et al. (2010), Grounding zone of Ross Ice Shelf mapped using ICESat laser altimetry. Padman et al. (2010), Seals map bathymetry of the Antarctic continental shelf. Luckman et al. (2010), Persistent iceberg groundings in the western Weddell Sea, Antarctica. In Review King et al. (2011), Ocean tides in the Weddell Sea: new observations on the Filchner-Ronne and Larsen C ice shelves and model validation. Marcott et al. (2011), Ice-shelf collapse from subsurface warming as a trigger for Heinrich events.

  10. Miscellaneous activities Maintain Polar Tide Models website, Antarctic Tide Gauge database, polar science image gallery; Science Advisor to Western Oregon University NASA Education & Public Outreach Award: Summer workshops for K-12 Oregon teachers integrating climate change materials into curricula; NASA ICESat Science Team member; One of eight Lead Authors for “A Research Program for Projecting Future Sea-Level Rise from Land-Ice Loss”, NSF/NASA-sponsored assessment; Journal reviews (2010) : J. Phys. Oceanogr., Geophys. Res. Lett., J. Glaciology, Ocean Science Discussions, Deep-Sea Res., Antarctic Science, J. Geophys. Res.

  11. Other 2009 AGU Editors’ Citation for Excellence in Refereeing (Geophys. Res. Lett.); Visiting Scientist, Bjerknes Centre for Climate Research (Bergen, Norway); Invited participant, “Land-Ice Contribution to Sea Level Rise” meeting and a lead author of the consequent report; Co-advisor for Rachael Mueller’s PhD studies at Oregon State; PhD committee member for Fernando Paolo, PhD student at Scripps; Publicity for “Seals Map Bathymetry” paper.

  12. Padman et al. (2010), Seals map bathymetry of the Antarctic continental shelf. Geophysical Research Letters. Science News London Times New Scientist US News and World Report Toronto Star Discovery Canada Physorg.com Wired.com …

  13. Outreach Recent non-specialist talks Arctic Symposium, Monmouth OR, Jan 2010: The Arctic, and Climate. Bergen Norway, April 2010: 4 talks as Visiting Scientist at the Bjerknes Centre for Climate Research. Workshop for OR K-12 teachers, Monmouth OR, Jun 2010: The Climate Change problem: Climate Change Research. Canada Days: Portland State University, Oct. 2010: The Arctic: Elephant in the Climate Cupboard. Linus Pauling Middle School, Corvallis OR, Oct 2010: Science in Antarctica: In the Footsteps of Shackleton.

  14. Science Advisor to Western Oregon University, NASA-funded program to develop climate science materials for Oregon K-12 schools; Initiated through NASA EP/O grant to ESR, 2006-2010.

  15. What next? Proposals in review Petermann Ocean Ice Shelf Experiment: Observing Ocean Ice Interactions Petermann Ocean Ice Shelf Experiment: Modeling Ocean Ice Interactions Investigating the dependence of tidewater glacier calving rate on internal, external and environmental forcing Proposals to be submitted in 2011 Holocene ice shelf response to, and role in, IRD cycling Sensitivity of Antarctic coastal-zone sea ice to atmospheric models (revised submission)

  16. MaudNESS 2005 US/Russia Ice Station Weddell 1992 UK ROPEX 1998

  17. Padman short bio 1987: PhD: Oceanography, University of Sydney 1986-1997: Postdoc & Research Faculty, Oregon State Univ. 1997: Joined ESR, moved to Seattle 1998: Moved back to Corvallis; work at home Australian citizen US Permanent Resident since 1991 Married, 9 year-old son

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