Estimating ice sheet mass changes from elevation surveys requires adjustments for snow density variations at the ice sheet surface.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/matter-firn
[2] http://admin.indiaenvironmentportal.org.in/category/author/kurt-m-cuffey
[3] http://admin.indiaenvironmentportal.org.in/category/journal/science
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-change
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-science
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/antarctica