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Isotopic fractionation and profile evolution of a melting snowcover

机译:积雪融化的同位素分馏和剖面演化

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Successive snow pits were dug intensively in a melting snowcover. Water was suc- cessfully separated from snow grains in the field for the first time. By measuring δ~18O values of water and snow grain samples as well as comparing isotopic profiles, it is found that meltwater percolating down in snow develops quick and clear isotopic fractionation with snow grains, but ex- erts no clear impact on the δ~18O profile of the snowcover through which the meltwater percolates.
机译:在积雪融化的积雪中集中挖掘了连续的雪坑。首次在田间成功将水与雪粒分离。通过测量水和雪颗粒样品的δ〜18O值并比较同位素分布,发现在雪中向下渗流的融水会形成积雪颗粒的快速清晰的同位素分馏,但对δ〜18O的影响不明显。融雪透过的积雪的轮廓。

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