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               Supplementary material:  Data files for
Zachary H. Levine, Adam L. Pintar, Jeremy Dobler, Nathan Blume, Michael Braun,
T. Scott Zaccheo, and Timothy G. Pernini

The detection of carbon dioxide leaks using quasi-tomographic laser
absorption spectroscopy measurements in variable wind
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README.txt (this file) - describes all the other files

We use the notation from awk:    $1 $2 ... means column 1 column 2, etc.

  n x m  means number of rows by number of columns

  format conventions are from C
          %d - integer
          %f - real number

? - follows convention of Unix regular expression ... a character.  In fact,
    these are digits 0-9 making a serial number

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topology.dat   54x2           "%d %d"
  $1 - index of transceiver
  $2 - index of reflector
line number is the observation condition
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point.dat      29x2           "%f %f"
  $1 - x position of transceiver or reflector
  $2 - y position of transceiver or reflector
line number is indexed by the indices in topology.dat
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wind.dat       24x2           "%f %f"
  $1 - wind speed [m/s]
  $2 - wind direction (from where it blows) in degrees with north at 0 degrees and
       east at 90 degrees
line number is which 20 minute block the wind applies to
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iWind.dat      1162x1         "%d"
  $1 - which 20 minute wind block applies to the current observation
       line number is the observation index, which includes both the time and
       the transceiver-reflector pair   (index to wind.dat)
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opticalDepth.dat   1162x1      "%f"          (Fig. 3-5)
  $1 - observed optical depth of CO2
       negative of natural log of transmission
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Model40/ leak rate 1*10^5 ppmv m^3 s^-1       (Fig. 9)
Model48/ leak rate 5*10^4 ppmv m^3 s^-1       (Fig. 10)
  Model??/ParamTrue/parameTrue????.dat
     simulated leak positions     (uniformly sampled from blue oval of Fig. 1)
  Model??/OpticalDepth/opticalDepth????.dat
     simulated optical depth with signal-to-noise given in main text, Table 2
 Special case:   Model40/ParamTrue/paramTrue0000.dat
                 Model40/ParamTrue/opticalDepth0000.dat
       Used to create Fig. 6, but not used in Fig. 9.
