Untersuchungen an Eisbohrkernen von Alpengletschern

[摘要] Cold alpine glaciers are archives of climatic Parameters. Core drilling in alpine glaciers allows to collectice samples of ages up to 1000 years. First results fromanalyses of an ice core from Colle Gnifetti (SwissAlps) show already interesting results. Frequentoccurring dust bands contain mainly dust from theSahara and are therefore characteristic for precipitations transported with subtropic air masses. Anincrease of the acidity of the precipitations starting atthe beginning of our Century is most probably ananthropogenic effect. For the upper 10 m of the icecore, S0₄^- and N0₃^- concentrations have also beenmeasured.

[学科分类] 自然科学（综合）