Fig. 5.
Validation of the instrument v2018 IMU measurement and processing (IMU curves) against co-located pressure-sensor-based measurements of waves using a Seabird pressure sensor (SBE curves), reproduced from 37. The measurements were obtained during a test campaign of the IMU measurement methodology performed on landfast ice in Tempelfjorden, Svalbard, in 2016. Shaded areas indicate the 5-sigma confidence intervals, computed from the Chi-squared uncertainty distribution estimate for stochastic Gaussian wave spectrum following the methodology discussed in80,81. Agreement within the confidence intervals is observed.