B086  santar086bcs2006 

Latitude  33.5575	Longitude  -116.5310  Elevation  1392  m
 
Install Date 2006-06-10 

Contents Of Tar files for year YYYY 
File                              Contents  
B086.YYYY.xml.gauge0.txt.gz       Processed data from gauge 0 (CH0) 
B086.YYYY.xml.gauge1.txt.gz       Processed data from gauge 1 (CH1) 
B086.YYYY.xml.gauge2.txt.gz       Processed data from gauge 2 (CH2) 
B086.YYYY.xml.gauge3.txt.gz       Processed data from gauge 3 (CH3) 
B086.YYYY.xml.Eee+Enn.txt.gz      Processed areal strain, manufacturer's calibration
B086.YYYY.xml.Eee-Enn.txt.gz      Processed differential strain, manufacturer's calibration
B086.YYYY.xml.2Ene.txt.gz         Processed engineering shear strain, manufacturer's calibration
some tars may contain the additional files
B086.YYYY.xml.Eee+Enn.ER2010.txt.gz      Processed areal strain, Roeloffs [2010], calibration
B086.YYYY.xml.Eee-Enn.ER2010.txt.gz      Processed differential strain, Roeloffs [2010], calibration
B086.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:	0.1 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 =  316.5  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	 -26.060    33.890   -0.00190 -0.00174    0.000    0.00000
CH1	 -26.920    37.192   -0.00185 -0.00027    0.000    0.00000
CH2	 -17.770    24.276   -0.00210 -0.00120    0.000    0.00000
CH3	   5.290   -15.384   -0.00136 -0.00054    0.000    0.00000
Detrend reference date 2006-06-17T00:00:00 
 
Barometric Response
Gauge	Response(ns/millibar) 
CH0	-2.9
CH1	-3.4
CH2	-2.7
CH3	-3.9
  
Tidal Constituants
Gauge	Tide	Amp(ns)	Phase
CH0	M2	-3.7	26.2
CH0	K1	-10.1	8.8
CH0	N2	-1.5	6.5
CH0	O1	-16.2	6.6
CH0	S2	-2.7	11.8
CH1	M2	121.1	5.4
CH1	K1	-20.4	7.2
CH1	N2	135.0	1.7
CH1	O1	-12.9	5.9
CH1	P1	-23.4	2.6
CH1	S2	138.6	3.0
CH2	M2	6.5	7.7
CH2	K1	76.5	4.6
CH2	N2	-24.6	0.8
CH2	O1	61.4	3.8
CH2	P1	76.5	1.2
CH2	S2	26.5	5.1
CH3	M2	-14.7	17.0
CH3	K1	114.2	3.3
CH3	N2	-16.7	4.3
CH3	O1	135.6	2.5
CH3	P1	132.8 1.0
CH3	S2	-2.4	8.2
 
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 =  316.5
    0.29629630    0.51851852    0.29629630    0.22222222
    0.10875497    0.33001153   -0.24075958   -0.19800692
   -0.37659637    0.16812796    0.30934518   -0.10087678
 
 
 
Thu Feb 7 10:43:32 MST 2013