Dynamic Calibration of a Fiber-Optic Distributed Temperature Sensing Network at a District-Scale Geothermal Exchange Borefield

Subsurface heat exchange research in a low-temperature district-scale geothermal borefield is a demanding application for fiber-optic distributed temperature sensing (DTS). While DTS systems do provide internal calibration routines, external calibration schemes are often needed to achieve desired accuracy and precision. This study systematically documents a set of tests aimed at evaluating the efficacy of both internal and external calibration...