B066 rockrd066bcn2007 Latitude 36.857533 Longitude -121.592167 Elevation 67 m Install Date 2007-06-07 Contents Of Tar files for year YYYY File Contents B066.YYYY.xml.gauge0.txt.gz Processed data from gauge 0 (CH0) B066.YYYY.xml.gauge1.txt.gz Processed data from gauge 1 (CH1) B066.YYYY.xml.gauge2.txt.gz Processed data from gauge 2 (CH2) B066.YYYY.xml.gauge3.txt.gz Processed data from gauge 3 (CH3) B066.YYYY.xml.Eee+Enn.txt.gz Processed areal strain, manufacturer's calibration B066.YYYY.xml.Eee-Enn.txt.gz Processed differential strain, manufacturer's calibration B066.YYYY.xml.2Ene.txt.gz Processed engineering shear strain, manufacturer's calibration some tars may contain the additional files B066.YYYY.xml.Eee+Enn.ER2010.txt.gz Processed areal strain, Roeloffs [2010], calibration B066.YYYY.xml.Eee-Enn.ER2010.txt.gz Processed differential strain, Roeloffs [2010], calibration B066.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 = 331.5 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 -76.910 105.620 -0.00128 -0.01649 0.000 0.00000 CH1 -77.390 -0.000 -0.00000 -0.00278 78.661 -0.00225 CH2 268.450 -0.000 -0.00000 -0.00319 -149.120 -0.00014 CH3 -7.480 41.428 -0.00124 -0.00174 0.000 0.00000 Detrend reference date /detrend_ref Barometric Response Gauge Response(ns/millibar) CH0 -4.5 CH1 -4.7 CH2 -4.0 CH3 -3.8 Tidal Constituents Gauge Tide Phase Amp(ns) CH0 M2 -90.245 6.928 CH0 O1 99.800 3.777 CH0 P1 110.745 1.481 CH0 K1 92.629 6.059 CH0 N2 -80.545 1.978 CH0 S2 -76.983 1.019 CH1 M2 8.602 4.675 CH1 O1 -45.738 0.478 CH1 P1 -72.263 0.426 CH1 K1 14.930 1.387 CH1 N2 -2.151 1.399 CH1 S2 47.094 2.367 CH2 M2 148.548 6.530 CH2 O1 -111.242 2.151 CH2 P1 -118.397 1.906 CH2 K1 -112.170 3.709 CH2 N2 143.353 2.045 CH2 S2 173.403 4.623 CH3 M2 -147.903 5.207 CH3 O1 112.921 1.935 CH3 P1 179.300 0.568 CH3 K1 112.000 2.241 CH3 N2 -152.454 1.270 CH3 S2 -162.900 2.676 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 = 331.5 ISOTROPIC 0.29629693 0.51851781 0.29629619 0.22222240 ISOTROPIC -0.09411373 0.36986296 -0.05383099 -0.22191824 ISOTROPIC -0.38049662 -0.01938037 0.38824809 0.01162890 Wed Jan 25 14:11:45 MST 2017