Articles | Volume 7, issue 3
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

Model code and software

PebbleCounts: a Python grain-sizing algorithm for gravel-bed river imagery B. Purinton and B. Bookhagen

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.