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Estimate of Glacier Ablation under a Debris Layer from Surface Temperature and Meteorological Variables

  • M. Nakawo (a1) and G.J. Young (a2)

Abstract

A simple model suggests that the ablation under a debris layer could be estimated from meteorological variables if the surface temperature data of the layer are available. This method was tested by analyzing the data obtained from experiments with artificial debris layers. Fairly good agreement was obtained between the estimated and the experimental data.

Résumé

Evaluation de l’ablution d’un glacier sous une couche détritique à partir de la température de surface et de variables météorologiques. Il est possible, grâce à un modèle simple, d’évaluer l’ablation d’un glacier sous une couche de roches détritiques en fonction de variables météorologiques si l’on possède des données sur la température de surface de la couche détritique. Ce modèle a été vérifié lors de l’analyse des données provenant d’essais effectués au moyen de couches détritiques artificielles. Les données expérimentales sont venues corroborer les données obtenues à l’aide des modèles théoriques.

Zusammenfassung

Abschätzung der Eisablation unter einer Schuttschicht mit Hilfe der Oberflächentemperatur und von meteorologischen Daten. Aus einem einfachen Modell geht hervor, dass die Ablation unter einer Schuttschicht aus meteorologischen Daten abgeschätzt werden kann, wenn die Oberflächentemperatur der Schicht bekannt ist. Diese Methode wurde mit Hilfe von Daten erprobt, die aus Versuchen mit kūnstlichen Schuttschichten hervorgingen. Zwischen den abgeschätzten und den experimentell gewonnenen Werten ergab sich eine recht gute Übereinstimmung.

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Copyright

References

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