B927 albern927bbc2007 Latitude 49.2188 Longitude -124.8133 Elevation 98.7 m Install Date 2007-12-06 Contents Of Tar files for year YYYY File Contents B927.YYYY.xml.gauge0.txt.gz Processed data from gauge 0 (CH0) B927.YYYY.xml.gauge1.txt.gz Processed data from gauge 1 (CH1) B927.YYYY.xml.gauge2.txt.gz Processed data from gauge 2 (CH2) B927.YYYY.xml.gauge3.txt.gz Processed data from gauge 3 (CH3) B927.YYYY.xml.Eee+Enn.txt.gz Processed areal strain, manufacturer's calibration B927.YYYY.xml.Eee-Enn.txt.gz Processed differential strain, manufacturer's calibration B927.YYYY.xml.2Ene.txt.gz Processed engineering shear strain, manufacturer's calibration some tars may contain the additional files B927.YYYY.xml.Eee+Enn.ER2010.txt.gz Processed areal strain, Roeloffs [2010], calibration B927.YYYY.xml.Eee-Enn.ER2010.txt.gz Processed differential strain, Roeloffs [2010], calibration B927.YYYY.xml.2Ene.ER2010.txt.gz Processed engineering shear strain, Roeloffs [2010], calibration Description of Level 2 Borehole Strainmeter ASCII files. Column 1 Description of data, gauge0, gauge1 etc Column 2 Date, YYYY-MM-DDTHH:mm:ss Column 3 Day of year Column 4 Modified Julian Date Column 5 Strain (microstrain). No offsets, trends, tides or barometric corrections have been applied. Column 6 Running sum of offsets Column 7 Strain data quality flag (g=good, b=bad, m=missing) Column 8 Tidal correction (microstrain) Column 9 Borehole trend correction (microstrain) Column 10 Barometric pressure correction (microstrain) Column 11 Barometric pressure data quality flag (g=good, b=bad, m=missing, i=interpolated) Column 12 Level, quality (2a= rapid processing, 2b=post processed) Column 13 Version, data generation date Column 14 Barometeric pressure (millibars) To produce strain data with offsets, tides, trends, tides and barometric pressure effect removed use Final_Strain=Column5+Column6-Column8-Column9-Column10 Processing Information Manufacturer: GTSM Technologies Manufacturer Gauge Scale Factor: 0.05 nanostrain per digital count Manufacturer Areal Scale Factor: 1.5 Manufacturer Shear Scale Factor: 3.0 Manufacturer Gauge Weightings: CH0=1, CH1=1, CH2=1, CH3=1 CH0 Orientation recorded in field = 331.1 degrees east of north Borehole Trend Models, calculated in days, y=F+A1*exp(T1*t)+M*t+A2*exp(T2*t) Gauge F A1 T1 M A2 T2 CH0 -20.790 32.505 -0.00128 -0.00789 -65.557 -0.00397 CH1 -27.360 43.375 -0.00094 -0.00510 -59.727 -0.00216 CH2 -117.887 0.000 0.00000 -0.00696 88.922 -0.00105 CH3 13.890 41.662 -0.00150 -0.00335 -164.250 -0.00456 Detrend reference date 2007-12-06T00:00:00 Barometric Response Gauge Response(ns/millibar) CH0 -1.9 CH1 -1.3 CH2 -3.3 CH3 -3.0 Tidal Constituents Gauge Tide Phase Amp(ns) CH0 M2 169.117 28.930 CH0 O1 45.440 19.515 CH0 P1 32.672 10.278 CH0 K1 37.794 31.608 CH0 N2 -147.908 5.314 CH0 S2 117.529 11.955 CH1 M2 -163.434 70.108 CH1 O1 50.887 23.289 CH1 P1 42.551 11.325 CH1 K1 46.260 34.026 CH1 N2 -139.565 14.185 CH1 S2 174.279 21.497 CH2 M2 -37.243 13.829 CH2 O1 -139.025 7.072 CH2 P1 -160.561 4.343 CH2 K1 -162.227 15.179 CH2 N2 -38.393 2.474 CH2 S2 -37.322 6.715 CH3 M2 18.527 16.832 CH3 O1 -143.724 2.280 CH3 P1 -159.834 1.401 CH3 K1 -165.058 11.236 CH3 N2 16.883 2.886 CH3 S2 19.103 8.769 Strain Matrices To Compute Areal and Shear Strain from Gauge Strain Manufacturer's Isotropic Strain Matrix, C=1.5, D=3.0, Gauge Weights=1, Orientation = 331.1 ISOTROPIC 0.29629696 0.51851781 0.29629617 0.22222240 ISOTROPIC -0.08879193 0.37009722 -0.05924649 -0.22205880 ISOTROPIC -0.38177369 -0.01421460 0.38745888 0.00852941 Wed Jun 21 14:07:40 MDT 2017