摘要：Cold alpine glaciers are archives of climatic Parameters. Core drilling in alpine glaciers allows to collect
ice samples of ages up to 1000 years. First results from
analyses of an ice core from Colle Gnifetti (Swiss
Alps) show already interesting results. Frequent
occurring dust bands contain mainly dust from the
Sahara and are therefore characteristic for precipitations transported with subtropic air masses. An
increase of the acidity of the precipitations starting at
the beginning of our Century is most probably an
anthropogenic effect. For the upper 10 m of the ice
core, S0<sub>4</sub><sup>-</sup> and N0<sub>3</sub><sup>-</sup> concentrations have also been
measured.
