B009 Pacific_Geoscience_Center_1 Latitude 48.648667 Longitude -123.451167 Elevation 15.0 m Install Date 2005-09-14 Contents Of Tar files for year YYYY File Contents B009.YYYY.xml.gauge0.txt.gz Processed data from gauge 0 (CH0) B009.YYYY.xml.gauge1.txt.gz Processed data from gauge 1 (CH1) B009.YYYY.xml.gauge2.txt.gz Processed data from gauge 2 (CH2) B009.YYYY.xml.gauge3.txt.gz Processed data from gauge 3 (CH3) B009.YYYY.xml.Eee+Enn.txt.gz Processed areal strain, manufacturer's calibration B009.YYYY.xml.Eee-Enn.txt.gz Processed differential strain, manufacturer's calibration B009.YYYY.xml.2Ene.txt.gz Processed engineering shear strain, manufacturer's calibration some tars may contain the additional files B009.YYYY.xml.Eee+Enn.ER2010.txt.gz Processed areal strain, Roeloffs [2010], calibration B009.YYYY.xml.Eee-Enn.ER2010.txt.gz Processed differential strain, Roeloffs [2010], calibration B009.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: 0.1 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 = 271.4 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 -28.580 18.040 -0.00192 -0.01165 3.406 0.00041 CH1 60.100 -48.161 -0.00165 0.00526 0.000 0.00000 CH2 -65.150 53.678 -0.00166 -0.00710 0.000 0.00000 CH3 -97.040 68.504 -0.00122 -0.00882 0.000 0.00000 Detrend reference date 2005-09-14T00:00:00 Barometric Response Gauge Response(ns/millibar) CH0 -4.5 CH1 -5.1 CH2 -4.3 CH3 -4.3 Tidal Constituents Gauge Tide Phase Amp(ns) CH0 M2 80.149 30.056 CH0 O1 48.023 24.442 CH0 P1 26.450 13.279 CH0 K1 26.501 44.464 CH0 N2 99.621 5.788 CH0 S2 67.135 10.217 CH1 M2 39.566 21.500 CH1 O1 28.958 9.011 CH1 P1 3.741 5.898 CH1 K1 9.369 18.222 CH1 N2 72.290 5.406 CH1 S2 -26.630 3.644 CH2 M2 35.618 14.881 CH2 O1 73.680 10.142 CH2 P1 46.256 3.862 CH2 K1 56.313 15.479 CH2 N2 80.591 1.984 CH2 S2 0.184 6.383 CH3 M2 65.703 29.998 CH3 O1 54.431 26.006 CH3 P1 32.004 13.230 CH3 K1 33.745 44.090 CH3 N2 94.614 5.120 CH3 S2 44.071 11.449 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 = 271.4 ISOTROPIC 0.00000000 0.66666667 0.00000000 0.66666667 ISOTROPIC 0.68467304 -0.32353424 0.00000000 -0.36113881 ISOTROPIC 0.35187415 0.20850359 0.00000000 -0.56037774 Fri Aug 11 18:00:43 MDT 2017