The CAIRN method: automated, reproducible calculation of catchment-averaged denudation rates from cosmogenic nuclide concentrations

Mudd, S. M., Harel, M.-A., Hurst, M. D. , Grieve, S. W.D. and Marrero, S. M. (2016) The CAIRN method: automated, reproducible calculation of catchment-averaged denudation rates from cosmogenic nuclide concentrations. Earth Surface Dynamics, 4(3), pp. 655-674. (doi: 10.5194/esurf-4-655-2016)

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We report a new program for calculating catchment-averaged denudation rates from cosmogenic nu- clide concentrations. The method (Catchment-Averaged denudatIon Rates from cosmogenic Nuclides: CAIRN) bundles previously reported production scaling and topographic shielding algorithms. In addition, it calculates production and shielding on a pixel-by-pixel basis. We explore the effect of sampling frequency across both azimuth (dθ) and altitude (dφ) angles for topographic shielding and show that in high relief terrain a relatively high sampling frequency is required, with a good balance achieved between accuracy and computational expense at dθ =8◦ and dφ =5◦. CAIRN includes both internal and external uncertainty analysis, and is packaged in freely available software in order to facilitate easily reproducible denudation rate estimates. CAIRN calculates denudation rates but also automates catchment averaging of shielding and production, and thus can be used to provide reproducible input parameters for the CRONUS family of online calculators.

Item Type:Articles
Additional Information:Simon Marius Mudd and Marie-Alice Harel are funded by US Army Research Office contract number W911NF-13-1-0478 and Simon Marius Mudd and Stuart W. D. Grieve are funded by NERC grant NE/J009970/1. Shasta M. Marrero is funded by NERC grant NE/I025840/1.
Glasgow Author(s) Enlighten ID:Hurst, Dr Martin
Authors: Mudd, S. M., Harel, M.-A., Hurst, M. D., Grieve, S. W.D., and Marrero, S. M.
Subjects:G Geography. Anthropology. Recreation > GB Physical geography
Q Science > QE Geology
College/School:College of Science and Engineering > School of Geographical and Earth Sciences
Journal Name:Earth Surface Dynamics
Publisher:European Geosciences Union
ISSN (Online):2196-632X
Copyright Holders:Copyright © 2016 The Authors
First Published:First published in Earth Surface Dynamics 4(3): 655-674
Publisher Policy:Reproduced under a Creative Commons License

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