Supplemental Information - Dissolved oxygen concentration profiles in the hyporheic zone through the use of a high-density fiber optic measurement system

This article provides supporting information for JAWER article \"Dissolved oxygen concentration profiles in the hyporheic zone through the use of a high-density fiber optic measurement system\" (https://doi.org/10.1080/23249676.2019.1611495). It gives additional details about sourcing, constructing and controlling the DO measurement system. Sample AutoHotKey ® scripts are presented. Additionally, sample calculations are presented for the evaluation of flowline residence time. Finally, additional details are provided to describe conditioning of the flume water, initiating the bacterial communities and preparation and consumption of the carbon amendments to support the metabolic activities of the microbial communities.