Extracting recent short-term glacier velocity evolution over southern Alaska and the Yukon from a large collection of Landsat data

Altena, Bas; Scambos, Ted; Fahnestock, Mark; Kääb, Andreas

doi:https://doi.org/10.5194/tc-13-795-2019

Articles | Volume 13, issue 3

https://doi.org/10.5194/tc-13-795-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/tc-13-795-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 13, issue 3

Research article

|

05 Mar 2019

Research article |

| 05 Mar 2019

Extracting recent short-term glacier velocity evolution over southern Alaska and the Yukon from a large collection of Landsat data

Bas Altena, Ted Scambos, Mark Fahnestock, and Andreas Kääb

Supplement

https://doi.org/10.5194/tc-13-795-2019-supplement

Data sets

Global Land Ice Velocity Extraction from Landsat 8 (GoLIVE), Version 1. T. Scambos, M. Fahnestock, T. Moon, A. Gardner, and M. Klinger https://doi.org/10.7265/N5ZP442B

Short summary

Many glaciers in southern Alaska and the Yukon experience changes in flow speed, which occur in episodes or sporadically. These flow changes can be measured with satellites, but the resulting raw velocity products are messy. Thus in this study we developed an automatic method to produce a synthesized velocity product over a large glacier region of roughly 600 km by 200 km. Velocities are at a monthly resolution and at 300 m resolution, making all kinds of glacier dynamics observable.