**  Tue Apr  9 15:57:16 2019   Andy Jacobson <andy.jacobson@noaa.gov> **

  The file "surface.mbl.sf6" is output from a data extension and
  integration (DEI) run for SF6 copied from Ed Dlugokencky and with
  the creation code "results.2018-07".

  It is fixed-width formatted. It is relatively simple to read it into
  popular analysis software. For R the syntax is simple:

  mbl <- read.table("surface.mbl.co2")

  This results in a data frame (matrix-like structure) with 42 columns
  and 985 rows. The first column is the decimal date, ranging from
  1997.5 to 2018.0. Columns 2-42 represent the latitudes 90S to 90N,
  in even increments of 0.05 sine of latitude. I.e.,

  latitudes <- asin(seq(from=-1,to=1,by=0.05))*180/pi

  which evaluates to:

   [1] -90.000000 -71.805128 -64.158067 -58.211669 -53.130102 -48.590378
   [7] -44.427004 -40.541602 -36.869898 -33.367013 -30.000000 -26.743684
  [13] -23.578178 -20.487315 -17.457603 -14.477512 -11.536959  -8.626927
  [19]  -5.739170  -2.865984   0.000000   2.865984   5.739170   8.626927
  [25]  11.536959  14.477512  17.457603  20.487315  23.578178  26.743684
  [31]  30.000000  33.367013  36.869898  40.541602  44.427004  48.590378
  [37]  53.130102  58.211669  64.158067  71.805128  90.000000

  Each row is for a different time, with 1-Jan-2000 (2000.0) on row 121.

  Values are in ppt SF6.

**  Thu Apr 11 07:47:27 2019   Andy Jacobson <andy.jacobson@noaa.gov> **

  Specific location from which I got these results:

  /home/ccg/ed/data_extension/new_py/sf6/flask/results.2018-07