B933 mckeem933bcn2008 Latitude 40.06 Longitude -123.969 Elevation 268.1 m Install Date 2008-09-12 Contents Of Tar files for year YYYY File Contents B933.YYYY.xml.gauge0.txt.gz Processed data from gauge 0 (CH0) B933.YYYY.xml.gauge1.txt.gz Processed data from gauge 1 (CH1) B933.YYYY.xml.gauge2.txt.gz Processed data from gauge 2 (CH2) B933.YYYY.xml.gauge3.txt.gz Processed data from gauge 3 (CH3) B933.YYYY.xml.Eee+Enn.txt.gz Processed areal strain, manufacturer's calibration B933.YYYY.xml.Eee-Enn.txt.gz Processed differential strain, manufacturer's calibration B933.YYYY.xml.2Ene.txt.gz Processed engineering shear strain, manufacturer's calibration some tars may contain the additional files B933.YYYY.xml.Eee+Enn.ER2010.txt.gz Processed areal strain, Roeloffs [2010], calibration B933.YYYY.xml.Eee-Enn.ER2010.txt.gz Processed differential strain, Roeloffs [2010], calibration B933.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 = 271 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 -22.570 18.648 -0.00139 0.00015 0.000 0.00000 CH1 -12.200 8.204 -0.00085 -0.00045 0.000 0.00000 CH2 -15.460 27.582 -0.00095 -0.00394 0.000 0.00000 CH3 157.690 -0.000 -0.00000 0.03235 -125.440 -0.00305 Detrend reference date 2008-09-12T00:00:00 Barometric Response Gauge Response(ns/millibar) CH0 -14.0 CH1 -13.0 CH2 -10.0 CH3 -10.0 Tidal Constituents Gauge Tide Phase Amp(ns) CH0 M2 -151.913 5.832 CH0 O1 2.787 2.803 CH0 P1 16.657 1.245 CH0 K1 10.330 3.246 CH0 N2 -160.523 0.940 CH0 S2 -159.941 3.815 CH1 M2 7.679 5.500 CH1 O1 -44.812 0.960 CH1 P1 -124.007 0.564 CH1 K1 -128.427 2.161 CH1 N2 37.446 0.427 CH1 S2 7.934 1.841 CH2 M2 12.372 7.739 CH2 O1 -75.534 1.483 CH2 P1 -92.410 0.206 CH2 K1 -78.711 0.919 CH2 N2 7.133 1.930 CH2 S2 40.726 3.808 CH3 M2 -161.582 6.362 CH3 O1 83.048 0.268 CH3 P1 70.775 0.539 CH3 K1 42.794 1.774 CH3 N2 -135.219 0.572 CH3 S2 176.829 3.657 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 = 271 ISOTROPIC 0.29629718 0.51851795 0.29629581 0.22222239 ISOTROPIC 0.37462159 -0.17388049 -0.30506860 0.10432750 ISOTROPIC 0.11529846 0.32701661 -0.24610429 -0.19621077 Wed May 17 17:58:54 MDT 2017