Journal cover Journal topic
Geoscientific Model Development An interactive open-access journal of the European Geosciences Union
Geosci. Model Dev., 9, 4451-4460, 2016
http://www.geosci-model-dev.net/9/4451/2016/
doi:10.5194/gmd-9-4451-2016
© Author(s) 2016. This work is distributed
under the Creative Commons Attribution 3.0 License.
Development and technical paper
15 Dec 2016
A computationally efficient depression-filling algorithm for digital elevation models, applied to proglacial lake drainage
Constantijn J. Berends and Roderik S. W. van de Wal

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Short summary
This paper describes several improvements to the so-called "flood-fill algorithm" – a computer program widely known for its use in the "paint bucket" tool in several drawing programs such as MS Paint. However, it can also be used to determine the extent and depth of lakes in a topography map, which is useful in hydrology and climatology. In such cases, the default algorithm can be too slow to be of much use. Our improvements can make it up to 100 times faster, making it much more feasible.
This paper describes several improvements to the so-called "flood-fill algorithm" – a computer...
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