Campbell Overview.

The Campbell data is delivered via cell phone in a comma-delimited format. Individual instruments (or "buffers") can be detected from the first element on each line, referred to as the breakout id.

  9,2007,19,1404,12.63,6.123,51.39,1341,12,42,31,.382,70,33,.913,1901,2,42,31,.383,-70,33,.917
  90,2007,-3412,1,1,1,0,0,0,0,0,0,0,0,0,0,0,6.86
  94,2007,23,1422,0,651,0,0,6,32,0,153,153,153,0,125,2,0
  91,2007,23,1430,0,0,0,0,0,0,0,0,0,0,0,0,651,187,87,121,2,0,42,31,.367,-70,33,.917
  1,2007,39,1434,1.684,4.508,8.58,7.1,313.9,9.98,7.1,6.992,313.3,9.92,1,45.94,23.29,4695,266.5,4926,3377,3371,3385,2.324,9.21,4.82,8.32,7.1,309.6,10.48,7.1,6.985,309.1,10.44,9.3,1
  4,1,37.949,12.67,11,34,10,2,1,2007,481
  12,12,3.5387,9.35,2.514,2,99,116,2007,12,0,111
  2,194,1,2007,10,2,11,56,0,93,130,159,33536,37632,32000,26368,25088,1792,4864,3328,59903,14592,45311,17408,36863,15104,37375,31488,31743,45824,23807,43008,20991,41728,29695,36096,37887,23296,54271,14080,7680,10240,13312,18688,18432,18688,16128,17920,15104,17664,16128,20480,14336,17664,2048,3328,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128
  5,2007,23,63,181,530
  4,0,4.1012,16.39,12,0,10,2,2007
  71,2007,275,1207,15.5,15,14.64,15.38,15.65,15.58,14.1,15.09,15.17,15.9,16.1,14.02,14.52,15.65,16.43,14.89,14.52,15.62,14.99,14.97,15.21,15.74,15.37,14.62,15.08,15.31,14.73,14.96,16.27,15.88,14.02,14.64,16.1,15.85,13.97,15.56,16.79,14.11,14.62,15.73,14.58,15.85,15.42,14.97,14.97,14.73,15.34,15.21,15.68,14.91,14.71,15.54,15.84,14.24,14.77,16.25,15.41,15.08,14.6,15.46,16.94,14.18,13.89,16.66,16.05,14.38,15.28,15.27,14.31,15.9,15.69,14.91,15.25,15.58,15.32,15.46,14.4,14.64,16.18,16.17,15.46,14.54,14.26,15.34,16.18,15.41,14.44,15.97,15.5,14.18,15.57,15.95,14.88,14.6,15.23,15.52,15.28,14.64,15.76,15.62,14.63,15.54,14.38,14.83,16.64,15.98,14.18,14.39,16.68,16.25,13.91,15.4,16.17,13.62,14.64,17.18,15.68,14.15,14.85,14.67,15.77,16.45,15.34,14.46,15.07,15.42,15.25,15.81
  7,2007,275,1207,.02,.017,.02,.039,.035,.059,.166,.208,.211,.614,1.044,1.845,2.77,1.89,3.63,1.726,2.869,3.182,2.28,2.3,1.902,.823,.842,.346,.25,.223,.095,.102,.065,.028,.034,31.65
  109,19,1504,13.44,2.388,54.59,48.56,1441,42,43,46,.946,69,53,.265,1901
  101,19,1504,-.973,0,0,0,0,0,0,0,0,0,1,231.5,0,0,0
  105,447,901,63,182,160,793
  103,11,19,1504,366.4,91.8,4.93,31.78,30.5,0,246.6,106,0,654.5
  103,12,19,1504,366.1,90.9,4.58,32.01,29.75,0,218.6,94,0,583.1
  102,1,19,14,56,0,113,13,1464.2,122.8,-1.7,-.5,3.133,4.66,0,0,178,306,191,250,199,157,215,93,201,45,193,110,170,50,208,83,221,99,205,169,246,179,212,215,212,153,233,246,248,220,236,294,250,286,260,255,61,220,26,3150,39,1667,66,2461,156,1848,162,1758,324,2039
 

[
        

would be parsed as

  >> options = get_options ( 'A0103' );
  >> [buffers,status] = read_campbell_buffer ( options, 'example.dat' )
  Reading Campbell data...
  Discriminating met data...
  Discriminating doppler data...
  Discriminating sbe37 data...
  Discriminating aanderaa data...
  Discriminating sbe16 data...
  Discriminating accelerometer data...
  Discriminating diagnostics data...
  Discriminating fft data...
  Discriminating monitor data...
  
  buffers = 
  
     met           : {[1x1 struct]}
     doppler       : {[1x1 struct]}
     sbe37         : {[1x1 struct]  [1x1 struct]}
     aanderaa      : {[1x1 struct]}
     sbe16         : {[1x1 struct]}
     accelerometer : {[1x1 struct]}
     diagnostics   : {[1x1 struct]}
     fft           : {[1x1 struct]}
     monitor       : {[1x1 struct]}
  
  
  status =
  
     1
  
  >> buffers.sbe37{1}
  
  ans = 
  
        time:            2452550.5
        conductivity:          41.012
        temperature:           16.39
        last_sample_num:      NaN
        num_bins_in_avg:      NaN
  
        

met (1)

met_short (101)

hourly_gust (31): Met hourly (added March 2007)

doppler (2): RDI doppler current meter

aquadopp (102): Nortek doppler current meter

fsi (3): Falmouth Scientic Instruments current meter

aanderaa: a current meter (5)

Note: Aanderaa buffers before March 2007 had 6 words (buffer id, hrs since beginning of year, minutes since beginning of day, curspd, curdir, temp). Year, day of year, and time (hhmm) replaced old 'hrs since begining of year' and 'minutes since beginning of day'...

aanderaa_optode: a current meter with dissolved oxygen (105)

aanderaa_z: zpulse current meter (106)

optode (103): dissolved oxygen connected to SBE44

sbe37 (4): A Conductivity Temperature Recorder

sbe16 (6): a conductivity-temperature recorder

The SBE16 is a conductivity-temperature recorder that can also record either transmissivity or dissolved oxygen. There are, therefore, two breakout IDs associated with the SBE16, 6 for transmissivity, and 12 for dissolved oxygen.

As of the October deployment of A0103 and B0103, the SBE16 buffer format changes. The change will make it somewhat similar to that of the SBE37 in that multiple instruments are possible. This is done via a breakout "sub-id" that now occupies the 2nd column.

The year was added to the data stream in March 2007.

For the case of dissolved oxygen, we have

accelerometer_fft (7)

accelerometer (71)

diagnostics

As the title suggests, all of these quantities are diagnostics and need not be reported to the public. Much of the data is crucial, however, such as the GPS latitude and longitude. This must be monitored hourly to make sure that the buoys have not broken loose, as has happened more than once.

diagnostics_short (109)

As the title suggests, all of these quantities are diagnostics and need not be reported to the public. Much of the data is crucial, however, such as the GPS latitude and longitude. This must be monitored hourly to make sure that the buoys have not broken loose, as has happened more than once.

Monitor (90)

None of the quantities reported in this buffer should be made available to the public.

Goes Error (91)

Status of last transmitted buffer. None of the quantities reported in this buffer should be made available to the public.

Goes Transmission (94)

Status of next buffer to be transmitted (either scheduled or random). GOES Table 5.3-2. None of the quantities reported in this buffer should be made available to the public.

sbe1603: a conductivity-temperature recorder

The SBE 1603 is a conductivity-temperature recorder that can optionally record dissolved oxygen. It has breakout 19.

As with the other SBEs, a breakout sub id is employed, typically 11 or 12.

optics: (there's always ONE in the family...)

The optics buffers have a variable format that's completely different from the other campbell buffers. Everything depends on the presence of special tokens in the data stream that serve to specify exactly what lies ahead in the data stream. Much of the following comes directly from a set of Excel documents provided by Andrew Barnard of Bigelow Labs. Different buoys have different configurations of optics instruments in a single package, so there is no one single fixed format.

Each DH4 (the WETLabs-built data logger used to collect, merge, and average the data from the optics sensors) has four serial (RS232) input ports, and one output serial (RS232) port. A special DH4 token (the special tokens are all negative) in the data stream specifies the beginning of a set of inputs from a particular sensor. The last character of the token specifies the port. Port 0 is a special case and everything following it up until the next DH4 token is basically diagnostics data for the DH4 data logger. If the port is not zero, then the next token specifies what sensor follows. The list of acceptable sensors is as follows.