Atmospheric pressure loading in GPS height estimates Original Research Article

Atmospheric pressure loading is known to generate noise in GPS vertical time series. Even weekly solutions of GPS determined vertical coordinates are correlated with atmospheric loading in more than 70% of the stations investigated. When correcting the GPS coordinates resulting from the different GPS processing centres for atmospheric loading, different variance reductions or augmentations for the same station are found. However, stations in Central and Southern Asia show high variance reductions, whereas nearly all coastal stations and island stations sometimes show a small augmentation in the variance, possibly due to the small variances of the loading signal itself.