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International Polar Year 2007–2008 - WMO

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242<br />

IPY 20 07–20 08<br />

sary environment to continue these programs even as<br />

daunting challenges were encountered.<br />

New insights from IPY are just now emerging.<br />

Multiple projects have contributed various aspects of<br />

a much more dynamic ice sheet both in the past and<br />

at the present time. We can expect continued dynamic<br />

behavior in our future from the Antarctic Ice Sheet.<br />

Some of the cryospheric programs have produced<br />

terra bytes of data.<br />

It is worth remembering that even though IGY<br />

insights were based on single data points or a few<br />

wiggly lines on a seismic record on paper in the field,<br />

these data still figure into new scientific insights. We<br />

should only expect vastly more expansive insights<br />

to follow from the manipulation and visualization<br />

of these large, complex digital data sets collected<br />

during IPY <strong>2007–2008</strong> and that these data will support<br />

scientific research for decades to come.<br />

References<br />

Bentley, C.R., 1964. The Structure of Antarctica and its<br />

ice cover. In Research in Geophysics, 2 Solid Earth<br />

and Interface Phenomena, H. Odishaw, (ed), p 335-<br />

389. Massachusetts Institute of Technology: Cambridge,<br />

MA.<br />

Cazenave, A., G.S. Ramillien, W. Llovel, K. DoMinh, M.<br />

Ablain, G. Larnicol and A. Lombard, 2009. Sea<br />

level budget over 2003-2008; a reevalution from<br />

satellite altimetry, GRACE and Argo data. Glob.<br />

Planet. Change, 65(1-2):83-88, doi:10.1016/j/gloplacha.2008.10.004.<br />

Fretwell, P.N.T., 2009. Penguins from space: faecal stains<br />

reveal the location of emperor penguin colonies.<br />

Global Ecol. and Biogeography, 18(5):543-552.<br />

Joughin, I., E. Rignot, C.E. Rosanova, B.K. Lucchitta and<br />

J. Bohlander, 2003. Timing of recent accelerations<br />

of Pine Island Glacier, Antarctica. Geophysical Research<br />

Letters, 30(13):1706.<br />

Naish, T., R. Powell, R. Levy, G. Wilson, R. Scherer, F. Talarico,<br />

L. Krissek, F. Niessen, M. Pompilio, T. Wilson, L.<br />

Carter, R. DeConto, P. Huybers, R. McKay, D. Pollard,<br />

J. Ross, D. Winter, P. Barrett, G. Browne, R. Cody, E.<br />

Cowan, J. Crampton, G. Dunbar, N. Dunbar, F. Florindo,<br />

C. Gebhardt, I. Graham, M. Hannah, D. Hansaraj,<br />

D. Harwood, D. Helling, S. Henrys, L. Hinnov,<br />

IPY <strong>2007–2008</strong> fostered collaboration between<br />

scientists, engineers, students and logistics operators.<br />

The entire fabric of the Antarctic community has<br />

been strengthened by the groups reaching beyond<br />

the easy “normal” collaborations to new, challenging<br />

collaborations.<br />

Even as this document is being written, IPY<br />

programs are in the field and some will be continued<br />

for the next two years. The POLENET program is just<br />

installing the lion’s share of their instruments and the<br />

LARISSA program, trying to reach the western side of<br />

the Antarctic Peninsula, is struggling against extreme<br />

ice conditions. The ICECAP program will continue to<br />

map the margins of the East Antarctic Ice Sheet for<br />

another field season and the IPY initiated effort in the<br />

Amundsen Sea area will finally deploy the instrument<br />

into the ocean below the Pine Island Ice Shelf in 2011.<br />

G. Kuhn, P. Kyle, A. Läufer, P. Maffioli, D. Magens, K.<br />

Mandernack, W. McIntosh, C. Millan, R. Morin, C.<br />

Ohneiser, T. Paulsen, D. Persico, I. Raine, J. Reed, C.<br />

Riesselman, L. Sagnotti, D. Schmitt, C. Sjunneskog,<br />

P. Strong, M. Taviani, S. Vogel, T. Wilch and T. Williams,<br />

2009. Obliquity-paced Pliocene West Antarctic<br />

ice sheet oscillations. Nature, 458(7236):322-328.<br />

Pollard, D. and R.M. DeConto, 2009. Modelling West<br />

Antarctic ice sheet growth and collapse through<br />

the past five million years. Nature, 458(7236):329-<br />

332.<br />

Rignot, E., G. Casassa, P. Gogineni, W. Krabill, A. Rivera<br />

and R. Thomas, 2004. Accelerated ice discharge<br />

from the Antarctic Peninsula following the collapse<br />

of Larsen B ice shelf. Geophys. Res. Lett.,<br />

31(18):L18401.<br />

Sophie Warny, R.A.A., M.J. Hannah, B.A.R. Mohr, J.I.<br />

Raine, D.M. Harwood, F. Florindo and the SMS Science<br />

Team, 2009. Palynomorphs from a sediment<br />

core reveal a sudden remarkably warm Antarctica<br />

during the middle Miocene. Geology, 37(10):3-6.<br />

Zwally, H.J., 2005. Mass changes of the Greenland and<br />

Antarctic ice sheets and shelves and contributions<br />

to sea-level rise: 1992-2002. J. Glaciol., 51:509-527.

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