Ice tilt time-series from sensors installed in boreholes drilled into Khumbu Glacier, Nepal, in 2017 and 2018 as part of EverDrill research project

Detailed methodology, including accuracy estimation, is presented by Doyle et al. (2018). The accelerometers installed in 2017 have an accuracy of 800 mV g-1 stated by the manufacturer (where g is the normalised gravity vector). A further calibration was carried out (details in Doyle et al. (2018)), resulting in the absolute accuracy of the tilt sensors being determined to be less than +/- 1 degree. The digital sensors installed in 2018 also measured temperature, however, these were not calibrated and are therefore only accurate to +/- 0.5 degrees Celsius.