B204 marble204bwa2007 Latitude 46.136 Longitude -122.169 Elevation 784.2 m Install Date 2007-08-01 Contents Of Tar files for year YYYY File Contents B204.YYYY.xml.gauge0.txt.gz Processed data from gauge 0 (CH0) B204.YYYY.xml.gauge1.txt.gz Processed data from gauge 1 (CH1) B204.YYYY.xml.gauge2.txt.gz Processed data from gauge 2 (CH2) B204.YYYY.xml.gauge3.txt.gz Processed data from gauge 3 (CH3) B204.YYYY.xml.Eee+Enn.txt.gz Processed areal strain, manufacturer's calibration B204.YYYY.xml.Eee-Enn.txt.gz Processed differential strain, manufacturer's calibration B204.YYYY.xml.2Ene.txt.gz Processed engineering shear strain, manufacturer's calibration some tars may contain the additional files B204.YYYY.xml.Eee+Enn.ER2010.txt.gz Processed areal strain, Roeloffs [2010], calibration B204.YYYY.xml.Eee-Enn.ER2010.txt.gz Processed differential strain, Roeloffs [2010], calibration B204.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 = 235.9 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 221.150 -228.450 -0.00038 0.03138 0.000 0.00000 CH1 -25.350 0.000 0.00000 -0.01950 0.000 0.00000 CH2 -10.400 0.000 0.00000 0.02581 0.000 0.00000 CH3 319.390 -328.280 -0.00045 0.00832 0.000 0.00000 Detrend reference date 2007-08-01T00:00:00 Barometric Response Gauge Response(ns/millibar) CH0 -5.7 CH1 -4.6 CH2 -4.2 CH3 -4.8 Tidal Constituents Gauge Tide Phase Amp(ns) CH0 M2 46.849 5.651 CH0 O1 -84.865 4.471 CH0 P1 -76.641 1.958 CH0 K1 -75.809 4.020 CH0 N2 71.822 1.768 CH0 S2 145.399 0.933 CH1 M2 -111.265 5.040 CH1 O1 79.424 3.106 CH1 P1 59.352 1.799 CH1 K1 79.637 4.141 CH1 N2 -111.985 1.157 CH1 S2 -97.378 2.237 CH2 M2 111.714 1.213 CH2 O1 47.935 2.459 CH2 P1 44.788 1.579 CH2 K1 62.476 3.441 CH2 N2 -68.883 1.093 CH2 S2 55.099 4.009 CH3 M2 54.871 6.074 CH3 O1 -68.819 2.751 CH3 P1 -40.854 1.437 CH3 K1 -68.731 2.932 CH3 N2 39.304 1.222 CH3 S2 60.923 3.082 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 = 235.9 ISOTROPIC 0.29629670 0.51851812 0.29629614 0.22222237 ISOTROPIC 0.01841705 -0.36658337 0.12821603 0.21995029 ISOTROPIC 0.39153057 -0.05282772 -0.37039878 0.03169593 Thu May 18 09:52:39 MDT 2017