= Sodar Data File Format =

== Access ==

Data files are accessible at:

   http://nccoos.org/files/sodar/

and stored at:

   http://nemo.isis.unc.edu/data/nccoos/level0/dukeforest/sodar/store/ (test)

and:

   http://nemo.isis.unc.edu/data/nccoos/level0/ims/sodar/store/ (production)

The trailing slash is significant.

== Naming Convention ==

Each file has a .dat file extension and a file name of the format yyyymmdd. This naming convention is determined by REMTECH.

As part of NCCOOS data management, data files are grouped by month into directories with names of the format yyyy-mm.

== File Format ==

Each daily file is a flat ASCII text file which is a chronological series of samples, normally taken every fifteen minutes.

Samples are separated by blank lines.

Each sample is a header and body pair.

=== Header ===

The format of a header looks like:

{{{
   BL# MONTH   DAY  YEAR  HOUR   MIN  VAL1  VAL2  VAL3  VAL4
     0     5    15  2007     0     0  1231  2416   395     0

  SPU1  SPU2  SPU3  SPU4 NOIS1 NOIS2 NOIS3 NOIS4 FEMAX SOFTW
     1     1     2     0   362   362   351     0   361  8179

  FE11  FE12  FE21  FE22  SNR1  SNR2  SNR3  SNR4 CHECK   JAM
     8     9     9     9    88    87    79     0    34 -9999

}}}

Notice the terminating blank line.

=== Body ===

The format of the body looks like:

{{{
   810 -9999 -9999 -9999 -9999
   790 -9999 -9999 -9999 -9999
   770 -9999 -9999 -9999 -9999
   750 -9999 -9999 -9999 -9999
   730 -9999 -9999 -9999 -9999
   710 -9999 -9999 -9999 -9999
   690 -9999 -9999 -9999 -9999
   670 -9999 -9999 -9999 -9999
   650 -9999 -9999 -9999 -9999
   630 -9999 -9999 -9999 -9999
   610 -9999 -9999 -9999 -9999
   590 -9999 -9999 -9999 -9999
   570 -9999 -9999 -9999 -9999
   550 -9999 -9999 -9999 -9999
   530 -9999 -9999 -9999 -9999
   510 -9999 -9999 -9999 -9999
   490 -9999 -9999 -9999 -9999
   470 -9999 -9999 -9999 -9999
   450 -9999 -9999 -9999 -9999
   430 -9999 -9999 -9999 -9999
   410 -9999 -9999 -9999 -9999
   390    87   706   216 -9999
   370   101   689   214 -9999
   350   113   617   216 -9999
   330   114   591   218 -9999
   310   129   564   217 -9999
   290   137   567   217 -9999
   270   133   603   217 -9999
   250   128   653   215 -9999
   230   125   666   214   -29
   210   120   679   215   -15
   190   121   700   213   -17
   170   133   721   212   -10
   150   141   716   212    -4
   130   152   696   211     6
   110   161   638   211    17
    90   188   599   210    11
    70   209   535   211    14
    50   184   496   212     5
    30   160   432   215     0
$
}}}

Notice the terminating dollar sign.