## Continuous GPS measurements

## Composite time series figures for monitoring of crustal deformation

The black lines on the map above show which stations are plotted on the the graphs below.
The graphs show time series (movements) for the CGPS stations OLKE, HVER, HLID, VOGS, KIDJ and
VMEY since the onset of measurements (1999). The top figure shows station movements in the
east component, the middle and bottom figures show the north and vertical components, respectively.
A majority of the points are from the final processing of the data (using final
orbit products), but the last 10 to 40 days are from automatic processing using
predicted satellite orbits. The graphs are updated automatically on a daily basis and
thus the last point on the graphs should be from the data of yesterday.
Uncertainties are not plotted and outliers and offsets are not corrected for.

East component of the stations since onset of measurements. Jumps in the time series
in mid-2000 are due to the South Iceland seismic zone earthquake sequence.

North component of the stations since onset of measurements. Jumps in the time series
in mid-2000 are due to the South Iceland seismic zone earthquake sequence.

Vertical component of the stations since onset of measurements. Jumps in the time series
at VOGS, HLID, HVER and OLKE are due to radome installation

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Halldór Geirsson (dori@vedur.is).