Fig. 4. Comparisons of InSAR LOS time series with GNSS time series projected into the LOS. a) Histograms of deviation from GNSS moving average (window 4 weeks). Green colors are for GNSS daily solution, blue for integrated InSAR & GNSS time-series, and red for the semi-vertical component in the integrated InSAR & GNSS time-series (horizontal GNSS model removed, comparison made with GNSS vertical component only). b) Subplots of InSAR and GNSS time series at 4 GNSS stations showing good agreement after integration. Uncertainties of InSAR time-series are standard deviations taken in 500-m boxes. c) Subplots of InSAR and GNSS time series at 5 GNSS stations showing poor agreement after integration.