NA-fixed

Plot showing NA-fixed data (All data)

These plots depict the north, east, and up components of the station as a function of time. More detailed explanation »

Dashed vertical lines show offsets (when present) due to:

  • Green – antenna changes from site logs
  • Red – earthquakes
  • Blue – manually entered

Downloads

Velocities

Velocity (mm/yr)Velocity standard deviation (mm/yr)Last observationIntercept (mm)Intercept standard deviation (mm)Reference dateReference yearReference day of year
North4.660.0720180817-52.960.491996.5612591996206
East-5.300.072018081760.340.531996.5612591996206
Up0.390.2120180817-3.881.621996.5612591996206

Offsets

Decimal date N offset (mm) N uncertainty (mm) E offset (mm) E uncertainty (mm) U offset (mm) U uncertainty (mm) Type
19990826 1999.64887 1.56 0.52 1.6 0.57 0.29 1.75 antenna
20050616 2005.45448 -0.41 0.53 0.7 0.58 -1.98 1.79 earthquake

Seasonal

Reference dateReference yearReference day of yearAmplitude of cosine (365.25-day period), mmStandard deviation of cosine amplitude (365.25-day period)Amplitude of sine (365.25-day period), mmStandard deviation of sine amplitude (365.25-day period)Amplitude of cosine (180.625-day period), mmStandard deviation of cosine amplitude (180.625-day period)Amplitude of sine (180.625-day period), mmStandard deviation of sine amplitude (180.625-day period)Amplitude of cosine (13.63-day period), mmStandard deviation of cosine amplitude (13.63-day period)Amplitude of sine (13.63-day period), mmStandard deviation of sine amplitude (13.63-day period)
North1996.5612591996206-0.060.110.040.11-0.080.080.000.09-0.020.02-0.010.02
East1996.5612591996206-0.950.130.320.130.010.10-0.120.10-0.050.030.030.03
Up1996.56125919962060.990.323.580.33-0.360.230.360.23-0.050.080.360.08

ITRF2008

Plot showing ITRF2008 data (All data)

These plots depict the X, Y, and Z components of the station as a function of time. More detailed explanation »

Dashed vertical lines show offsets (when present) due to:

  • Green – antenna changes from site logs
  • Red – earthquakes
  • Blue – manually entered

Downloads

Velocities

Velocity (mm/yr)Velocity standard deviation (mm/yr)Last observationIntercept (mm)Intercept standard deviation (mm)Reference dateReference yearReference day of year
North-6.730.132018081775.950.471996.5612591996206
East-18.710.1520180817215.250.451996.5612591996206
Up0.090.22201808170.941.361996.5612591996206

Offsets

Decimal date N offset (mm) N uncertainty (mm) E offset (mm) E uncertainty (mm) U offset (mm) U uncertainty (mm) Type
19990826 1999.64887 2.19 0.49 1.53 0.46 -0.81 1.41 antenna
20050616 2005.45448 -0.39 0.48 1 0.46 -1.93 1.43 earthquake

Seasonal

Reference dateReference yearReference day of yearAmplitude of cosine (365.25-day period), mmStandard deviation of cosine amplitude (365.25-day period)Amplitude of sine (365.25-day period), mmStandard deviation of sine amplitude (365.25-day period)Amplitude of cosine (180.625-day period), mmStandard deviation of cosine amplitude (180.625-day period)Amplitude of sine (180.625-day period), mmStandard deviation of sine amplitude (180.625-day period)Amplitude of cosine (13.63-day period), mmStandard deviation of cosine amplitude (13.63-day period)Amplitude of sine (13.63-day period), mmStandard deviation of sine amplitude (13.63-day period)
North1996.5612591996206-0.390.07-0.070.07-0.210.05-0.010.050.010.02-0.020.02
East1996.5612591996206-0.950.070.350.070.050.05-0.120.05-0.110.020.040.02
Up1996.56125919962061.340.233.870.23-0.390.170.190.17-0.020.080.340.08

Filtered

Plot showing Filtered data (All data)

These plots depict the north, east, and up components of the station as a function of time. More detailed explanation »

Dashed vertical lines show offsets (when present) due to:

  • Green – antenna changes from site logs
  • Red – earthquakes
  • Blue – manually entered

Downloads

Velocities

Velocity (mm/yr)Velocity standard deviation (mm/yr)Last observationIntercept (mm)Intercept standard deviation (mm)Reference dateReference yearReference day of year
North4.750.0520180817-42.920.211999.6598221999242
East-5.150.102018081749.530.211999.6598221999242
Up0.370.3120180817-3.500.731999.6598221999242

Offsets

Decimal date N offset (mm) N uncertainty (mm) E offset (mm) E uncertainty (mm) U offset (mm) U uncertainty (mm) Type
20050616 2005.45448 -0.8 0.22 -0.37 0.21 -0.51 0.74 earthquake

Seasonal

Reference dateReference yearReference day of yearAmplitude of cosine (365.25-day period), mmStandard deviation of cosine amplitude (365.25-day period)Amplitude of sine (365.25-day period), mmStandard deviation of sine amplitude (365.25-day period)Amplitude of cosine (180.625-day period), mmStandard deviation of cosine amplitude (180.625-day period)Amplitude of sine (180.625-day period), mmStandard deviation of sine amplitude (180.625-day period)Amplitude of cosine (13.63-day period), mmStandard deviation of cosine amplitude (13.63-day period)Amplitude of sine (13.63-day period), mmStandard deviation of sine amplitude (13.63-day period)
North1999.65982219992420.570.030.220.03-0.030.020.020.030.020.01-0.010.01
East1999.65982219992420.110.030.220.03-0.020.020.060.020.000.010.020.01
Up1999.65982219992420.490.11-0.550.110.310.07-0.200.08-0.070.040.100.04

These results are preliminary. The station positions are unchecked and should not be used for any engineering applications. There may be errors in the antenna heights. The velocities are very dependent on the length of the span of observations. The presence of outliers (errant observations) sometimes contaminates the velocities.

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