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- W3803770 abstract "Abstract An empirical model of firn densification from the surface to the zone of pore close-off has been constructed. Fundamental rate equations have been derived for the first two stages of densification. In the first stage, for densities less than 0.55 Mg m −3 , the densification rate is proportional to the mean annual accumulation times the term ( ρ i − ρ ), where ρ is the density of the snow and ρ i is the density of pure ice. The densification rate in the second stage, where 0.55 Mg m −3 < ρ < 0.8 Mg m −3 , is proportional to the square root of the accumulation rate and to ( ρ i− ρ ). Depth–density and depth–age calculations from this model are compared with observation. Model accumulation rates are within about 20% of values obtained by other techniques. It is suggested that depth intervals of constant density in some Antarctic cores may represent a synchronous event in the 1880 ’s when ten times the normal accumulation fell within a year or two." @default.
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- W3803770 date "1980-01-01" @default.
- W3803770 modified "2023-10-11" @default.
- W3803770 title "Firn Densification: An Empirical Model" @default.
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- W3803770 doi "https://doi.org/10.1017/s0022143000015239" @default.
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