Articles | Volume 7, issue 3
https://doi.org/10.5194/esurf-7-859-2019
https://doi.org/10.5194/esurf-7-859-2019
Research article
 | 
17 Sep 2019
Research article |  | 17 Sep 2019

Introducing PebbleCounts: a grain-sizing tool for photo surveys of dynamic gravel-bed rivers

Benjamin Purinton and Bodo Bookhagen

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Latest update: 24 Jun 2024
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Short summary
We develop and test new methods for counting pebble-size distributions in photos of gravel-bed rivers. Our open-source algorithms provide good estimates in complex imagery from high-energy mountain rivers. We discuss methods of river cross-section photo collection and processing into seamless georeferenced imagery. Application of a semi-automated version of the algorithm in small patches can be used as validation data for upscaling to entire survey sites using a fully automated version.