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Perspectives
Submitted on December 7, 2007 A Matter of Firn
1 Department of Geography, 507 McCone Hall, University of California, Berkeley, CA 94720–4740, USA. * To whom correspondence should be addressed.
Estimating ice sheet mass changes from elevation surveys requires adjustments for snow density variations at the ice sheet surface.
The editors suggest the following Related Resources on Science sites:In Science Magazine
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Science. ISSN 0036-8075 (print), 1095-9203 (online)