B208 lakejn208bwy2007 Latitude 44.5602 Longitude -110.4015 Elevation 2405.8 m Install Date 2007-10-31 Contents Of Tar files for year YYYY File Contents B208.YYYY.xml.gauge0.txt.gz Processed data from gauge 0 (CH0) B208.YYYY.xml.gauge1.txt.gz Processed data from gauge 1 (CH1) B208.YYYY.xml.gauge2.txt.gz Processed data from gauge 2 (CH2) B208.YYYY.xml.gauge3.txt.gz Processed data from gauge 3 (CH3) B208.YYYY.xml.Eee+Enn.txt.gz Processed areal strain, manufacturer's calibration B208.YYYY.xml.Eee-Enn.txt.gz Processed differential strain, manufacturer's calibration B208.YYYY.xml.2Ene.txt.gz Processed engineering shear strain, manufacturer's calibration some tars may contain the additional files B208.YYYY.xml.Eee+Enn.ER2010.txt.gz Processed areal strain, Roeloffs [2010], calibration B208.YYYY.xml.Eee-Enn.ER2010.txt.gz Processed differential strain, Roeloffs [2010], calibration B208.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 = 292.4 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 2.120 -51.512 -0.00694 0.05426 -0.000 0.00000 CH1 -0.320 0.000 0.00000 0.09523 -0.000 0.00000 CH2 2.520 0.000 0.00000 0.04972 0.000 0.00000 CH3 452.410 -466.650 -0.00092 0.00462 0.000 0.00000 Detrend reference date 2007-10-31T00:00:00 Barometric Response Gauge Response(ns/millibar) CH0 -1.0 CH1 -4.1 CH2 -4.2 CH3 -2.1 Tidal Constituents Gauge Tide Phase Amp(ns) CH0 M2 122.890 8.456 CH0 O1 -28.916 8.473 CH0 P1 -17.402 4.781 CH0 K1 -24.806 11.453 CH0 N2 115.767 1.550 CH0 S2 117.477 3.871 CH1 M2 -83.987 8.578 CH1 O1 95.528 0.923 CH1 P1 38.748 0.668 CH1 K1 122.786 1.084 CH1 N2 -91.301 1.694 CH1 S2 -78.752 4.477 CH2 M2 21.870 17.292 CH2 O1 -3.909 6.216 CH2 P1 5.637 4.328 CH2 K1 -4.619 7.427 CH2 N2 16.878 3.241 CH2 S2 21.103 9.388 CH3 M2 83.450 14.388 CH3 O1 -15.512 9.289 CH3 P1 -15.437 3.774 CH3 K1 -60.192 8.241 CH3 N2 56.568 4.293 CH3 S2 76.908 6.031 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 = 292.4 ISOTROPIC 0.29629700 0.51851768 0.29629603 0.22222262 ISOTROPIC 0.35320950 0.09460693 -0.39105176 -0.05676466 ISOTROPIC -0.16993566 0.35808331 0.02670242 -0.21485006 Tue Feb 28 13:30:15 MST 2017