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Measurement of Surface Strain-Rate on Taku Glacier, Alaska

  • T. H. Wu (a1) and R. W. Christensen (a1)

Abstract

Strain-rate and surface velocity measurements were made on a valley glacier. The measured strain-rates were used to calculate the stress condition and velocity distribution in the glacier. The measured velocity is in reasonable agreement with that calculated from Nye’s plasticity solution.

Résumé

Des mesures de vitesse de déformation et de vitesse de surface ont été faites sur le Taku Glacier (Alaska). Les vitesses de déformation mesurées ont été utilisées pour calculer les conditions de tension et la distribution de vitesse dans le glacier. La vitesse mesurée est en accord raisonnable avec celle calculée à partir de la théorie de la plasticité de Nye.

Zusammenfassung

Am Taku-Gletscher in Alaska wurden Deformationsgeschwindigkciten und Oberflächengeschwindigkeiten gemessen. Aus den gemessenen Deformationsgeschwindigkeiten wurde der Spannungszustand und die Geschwindigkeitsverteilung im Innern des Gletschers berechnet. Die gemessene Geschwindigkeit stimmt annehmbar mit der nach Nye’s Plastizitätstheorie berechneten überein.

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Copyright

References

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