Jarðvísindastofnun Háskóla Íslands - Institute of Earth Sciences, University of Iceland
Mælingar á færslum á skriðu við Tungnakvíslarjökul / Measurements of displacements of a landslide near Tungnakvíslarjökull




Þann 16. ágúst 2019 var komið fyrir GNSS (GPS) mælistöð til samfelldra mælinga í bergsili (hægfara skriðu) ofan við Tungnakvíslarjökul, sjá mynd að ofan.
Að neðan má finna niðurstöður mæliraða fyrir nokkur mismunandi tímabil. Vinsamlegast virðið höfundarétt niðurstaðna.

A continuously recording GNSS/GPS station was installed on a landslide near Tungnakvíslarjökull glacier in August 2019, see figure above.
Below you can find time series of results from this station for a few different time intervals. Please respect authorship of the results.
The images are updated several times per day. Click on any image to see it in higher resoltion.

Last 100 days (daily positions), velocity map for different time intervals, last 3 days (positions at 5 min interval), last 10 days (positions at 5 min interval)



A note about quality of results: The station is located under a steep slope and therefore suffers somewhat less precision and some irregular periods of erratic position results than typical GNSS stations mainly because of reflections of satellite signals. The 100-day plot contains data from data processing using preliminary satellite orbits (green and red points) and final satellite orbits (black dots). Successfully processed results are plotted as a red dot on the 100-day graph. The velocity map shows the direction and amplitude averaged over some different periods indicated by the different colors: horizontal movement in blue to red colors and vertical movement in gray to black colors. The 5-minute results (blue dots above) should be uptated with a 1-4 hour latency, and can have periods of seriously erratic data. The GNSS station is (as of 2. Sep. 2019) moving at a rate of 1-3 mm per day to the southwest and down, which translates to 1-3 cm over 10 days.
All results are automatically generated and not reviewed by anyone before presented here (beware of data errors).
Some other websites with GNSS time series:
Time series plots for the last 100 days
Time series plots for the last 400 days
Final Time series:
    Final time series including all outliers and offsets (uncorrected)
    Final time series
    Residual time series
    Final time series (some large events removed)
    Residual (linear signal removed) time series (some large events removed)
    Residual (linear and seasonal signals removed) time series (linear and seasonal signals removed, some large events removed as above)
    Fit of seasonal signal
Other plots:
Combined plots for specific areas
Kinematic solutions: Hekla, Katla, SISZ, Other stations
Qc plots Site voltage plots
Halldór Geirsson, University of Iceland.