B205  norris205bwy2008 

Latitude  44.7135	Longitude  -110.6782  Elevation  2295.9  m
 
Install Date 2008-07-16 

Contents Of Tar files for year YYYY 
File                              Contents  
B205.YYYY.xml.gauge0.txt.gz       Processed data from gauge 0 (CH0) 
B205.YYYY.xml.gauge1.txt.gz       Processed data from gauge 1 (CH1) 
B205.YYYY.xml.gauge2.txt.gz       Processed data from gauge 2 (CH2) 
B205.YYYY.xml.gauge3.txt.gz       Processed data from gauge 3 (CH3) 
B205.YYYY.xml.Eee+Enn.txt.gz      Processed areal strain, manufacturer's calibration
B205.YYYY.xml.Eee-Enn.txt.gz      Processed differential strain, manufacturer's calibration
B205.YYYY.xml.2Ene.txt.gz         Processed engineering shear strain, manufacturer's calibration
some tars may contain the additional files
B205.YYYY.xml.Eee+Enn.ER2010.txt.gz      Processed areal strain, Roeloffs [2010], calibration
B205.YYYY.xml.Eee-Enn.ER2010.txt.gz      Processed differential strain, Roeloffs [2010], calibration
B205.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 (Kilo Pascals)

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 =  200.9  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	 417.790   -434.810   -0.00165 -0.26800    0.000    0.00000
CH1	-711.780   723.260   -0.00110  0.38000    0.000    0.00000
CH2	-700.380   703.810   -0.00060  0.27400    0.000    0.00000
CH3	   0.000     0.000    0.00000  0.00000    0.000    0.00000
Detrend reference date 2008-07-16T00:00:00 
 
Barometric Response
Gauge	Response(ns/millibar) 
CH0	-4.4
CH1	-4.3
CH2	-6.5
CH3	0.0
  
Tidal Constituents
Gauge	Tide	Phase   Amp(ns)
CH0	M2	-73.9	8.2
CH0	K1	139.6	6.7
CH0	N2	-77.8	1.5
CH0	O1	120.6	4.8
CH0	P1	100.9	2.7
CH0	S2	-69.7	3.8
CH1	M2	41.2	21.5
CH1	K1	-87.1	7.7
CH1	N2	41.6	4.1
CH1	O1	-61.4	5.6
CH1	P1	-23.0	2.8
CH1	S2	43.2	9.4
CH2	M2	-163.4	13.5
CH2	K1	-94.5	2.2
CH2	N2	-167.9	2.3
CH2	O1	-6.0	1.9
CH2	P1	25.2	2.6
CH2	S2	-166.7	7.2
CH3	M2	0.0	0.0
CH3	K1	0.0	0.0
CH3	N2	-127.0	3.2
CH3	O1	0.0	0.0
CH3	P1	0.0	0.0
CH3	S2	0.0	0.0
 
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 =  200.9
    0.44444444    0.44444444    0.44444444    0.00000000
   -0.33132267   -0.09088713    0.42220980    0.00000000
    0.29623665   -0.43505217    0.13881552    0.00000000
 
 
 
Thu May 9 13:43:16 MDT 2013