B018 delphi018bwa2006 Latitude 46.9795 Longitude -123.0203 Elevation 10.0 m Install Date 2006-01-21 Contents Of Tar files for year YYYY File Contents B018.YYYY.xml.gauge0.txt.gz Processed data from gauge 0 (CH0) B018.YYYY.xml.gauge1.txt.gz Processed data from gauge 1 (CH1) B018.YYYY.xml.gauge2.txt.gz Processed data from gauge 2 (CH2) B018.YYYY.xml.gauge3.txt.gz Processed data from gauge 3 (CH3) B018.YYYY.xml.Eee+Enn.txt.gz Processed areal strain, manufacturer's calibration B018.YYYY.xml.Eee-Enn.txt.gz Processed differential strain, manufacturer's calibration B018.YYYY.xml.2Ene.txt.gz Processed engineering shear strain, manufacturer's calibration some tars may contain the additional files B018.YYYY.xml.Eee+Enn.ER2010.txt.gz Processed areal strain, Roeloffs [2010], calibration B018.YYYY.xml.Eee-Enn.ER2010.txt.gz Processed differential strain, Roeloffs [2010], calibration B018.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 = 267.0 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 -17.990 18.488 -0.00303 -0.00280 0.000 0.00000 CH1 -10.160 8.986 -0.00296 0.00224 0.000 0.00000 CH2 21.530 -21.123 -0.00065 0.00362 0.000 0.00000 CH3 -41.150 42.280 -0.00152 -0.01283 0.000 0.00000 Detrend reference date /detrend_ref Barometric Response Gauge Response(ns/millibar) CH0 -3.6 CH1 -5.1 CH2 -6.0 CH3 -6.3 Tidal Constituents Gauge Tide Phase Amp(ns) CH0 M2 -2.570 27.003 CH0 O1 -30.932 8.547 CH0 P1 -40.746 3.709 CH0 K1 -52.076 10.145 CH0 N2 35.260 5.083 CH0 S2 -53.394 9.359 CH1 M2 -138.870 33.903 CH1 O1 153.712 5.930 CH1 P1 143.420 4.146 CH1 K1 151.843 14.231 CH1 N2 -112.445 8.296 CH1 S2 -177.479 4.007 CH2 M2 58.626 22.881 CH2 O1 3.060 6.216 CH2 P1 -5.035 4.266 CH2 K1 -4.199 12.860 CH2 N2 69.678 4.618 CH2 S2 56.911 7.384 CH3 M2 37.652 31.184 CH3 O1 -19.475 7.394 CH3 P1 -24.322 4.936 CH3 K1 -25.400 14.456 CH3 N2 63.541 7.284 CH3 S2 7.534 4.948 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 = 267.0 ISOTROPIC 0.29630000 0.51850000 0.29630000 0.22220000 ISOTROPIC 0.35490000 -0.21770000 -0.26790000 0.13060000 ISOTROPIC 0.16630000 0.29960000 -0.28620000 -0.17980000 Wed Jun 7 14:58:26 MDT 2017