B943 pnycrk943bwa2008 Latitude 47.8132 Longitude -122.9113 Elevation 84.2 m Install Date 2008-02-26 Contents Of Tar files for year YYYY File Contents B943.YYYY.xml.gauge0.txt.gz Processed data from gauge 0 (CH0) B943.YYYY.xml.gauge1.txt.gz Processed data from gauge 1 (CH1) B943.YYYY.xml.gauge2.txt.gz Processed data from gauge 2 (CH2) B943.YYYY.xml.gauge3.txt.gz Processed data from gauge 3 (CH3) B943.YYYY.xml.Eee+Enn.txt.gz Processed areal strain, manufacturer's calibration B943.YYYY.xml.Eee-Enn.txt.gz Processed differential strain, manufacturer's calibration B943.YYYY.xml.2Ene.txt.gz Processed engineering shear strain, manufacturer's calibration some tars may contain the additional files B943.YYYY.xml.Eee+Enn.ER2010.txt.gz Processed areal strain, Roeloffs [2010], calibration B943.YYYY.xml.Eee-Enn.ER2010.txt.gz Processed differential strain, Roeloffs [2010], calibration B943.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 = 329.5 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 -79.180 0.000 0.00000 -0.01530 0.000 0.00000 CH1 49.310 -2.599 0.00063 0.01133 0.000 0.00000 CH2 50.480 0.092 0.00155 -0.00092 0.000 0.00000 CH3 86.240 -0.387 0.00130 -0.03766 0.000 0.00000 Detrend reference date /detrend_ref Barometric Response Gauge Response(ns/millibar) CH0 0.0 CH1 -4.2 CH2 -4.5 CH3 -5.0 Tidal Constituents Gauge Tide Phase Amp(ns) CH0 M2 -124.837 6.046 CH0 O1 -81.392 5.273 CH0 P1 121.377 0.848 CH0 K1 0.0 0.0 CH0 N2 -71.099 3.052 CH0 S2 70.112 4.759 CH1 M2 32.942 15.015 CH1 O1 -2.910 7.240 CH1 P1 10.963 4.026 CH1 K1 -11.072 11.111 CH1 N2 66.260 3.738 CH1 S2 -46.039 1.960 CH2 M2 -21.067 8.535 CH2 O1 46.305 4.302 CH2 P1 49.518 2.720 CH2 K1 64.556 5.224 CH2 N2 -42.662 1.517 CH2 S2 -12.810 4.912 CH3 M2 -108.007 9.944 CH3 O1 -112.939 1.991 CH3 P1 122.291 1.590 CH3 K1 172.070 7.718 CH3 N2 -79.841 4.118 CH3 S2 40.450 4.472 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 = 329.5 ISOTROPIC 0.00000000 0.66666667 0.00000001 0.66666667 ISOTROPIC 0.00000000 0.33664128 -0.01343487 -0.32320641 ISOTROPIC 0.00000000 -0.18660331 0.76968311 -0.58307980 Mon Aug 28 12:23:40 MDT 2017