Articles | Volume 10, issue 1
The Cryosphere, 10, 159–177, 2016
https://doi.org/10.5194/tc-10-159-2016

Special issue: Interactions between climate change and the Cryosphere: SVALI,...

The Cryosphere, 10, 159–177, 2016
https://doi.org/10.5194/tc-10-159-2016

Research article 19 Jan 2016

Research article | 19 Jan 2016

Geodetic mass balance record with rigorous uncertainty estimates deduced from aerial photographs and lidar data – Case study from Drangajökull ice cap, NW Iceland

E. Magnússon et al.

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Short summary
We demonstrate the opportunities given by high resolution digital elevation models (DEMs) to improve procedures for obtaining mass balance records from archives of aerial photographs. We also describe a geostatistical approach to estimate uncertainty of elevation changes derived by differencing DEMs. This method is more statistically robust than other described in the literature. Our study highlights a common tendency of overestimating this uncertainty, downgrading geodetic mass balance records.