B072 goldhl072bcn2007 Latitude 35.831 Longitude -120.345 Elevation 397.7 m Install Date 2007-08-27 Contents Of Tar files for year YYYY File Contents B072.YYYY.xml.gauge0.txt.gz Processed data from gauge 0 (CH0) B072.YYYY.xml.gauge1.txt.gz Processed data from gauge 1 (CH1) B072.YYYY.xml.gauge2.txt.gz Processed data from gauge 2 (CH2) B072.YYYY.xml.gauge3.txt.gz Processed data from gauge 3 (CH3) B072.YYYY.xml.Eee+Enn.txt.gz Processed areal strain, manufacturer's calibration B072.YYYY.xml.Eee-Enn.txt.gz Processed differential strain, manufacturer's calibration B072.YYYY.xml.2Ene.txt.gz Processed engineering shear strain, manufacturer's calibration some tars may contain the additional files B072.YYYY.xml.Eee+Enn.ER2010.txt.gz Processed areal strain, Roeloffs [2010], calibration B072.YYYY.xml.Eee-Enn.ER2010.txt.gz Processed differential strain, Roeloffs [2010], calibration B072.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 = 219.7 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 -9.990 163.150 -0.00146 -0.00744 0.000 0.00000 CH1 153.310 -0.438 0.00094 0.00677 0.000 0.00000 CH2 57.030 0.000 0.00000 -0.00145 0.000 0.00000 CH3 152.030 0.000 0.00000 -0.00915 0.000 0.00000 Detrend reference date /detrend_ref Barometric Response Gauge Response(ns/millibar) CH0 -1.0 CH1 -0.8 CH2 -0.9 CH3 -1.0 Tidal Constituents Gauge Tide Phase Amp(ns) CH0 M2 -153.298 7.185 CH0 O1 137.921 3.470 CH0 K1 0.0 0.0 CH0 N2 -153.359 1.541 CH0 S2 -143.811 5.015 CH1 M2 19.754 7.428 CH1 O1 -31.711 1.324 CH1 K1 0.0 0.0 CH1 N2 16.427 1.600 CH1 S2 -20.317 1.268 CH2 M2 44.528 2.227 CH2 O1 -27.462 2.372 CH2 K1 0.0 0.0 CH2 N2 54.452 0.687 CH2 S2 -118.573 1.503 CH3 M2 -162.222 6.194 CH3 O1 149.933 1.461 CH3 K1 0.0 0.0 CH3 N2 -167.677 1.245 CH3 S2 -145.949 4.564 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 = 219.7 ISOTROPIC 0.29629690 0.51851806 0.29629606 0.22222232 ISOTROPIC -0.19424236 -0.28121024 0.30672574 0.16872686 ISOTROPIC 0.34044833 -0.24102907 -0.24403641 0.14461715 Mon Aug 28 16:17:10 MDT 2017