Contents of an
                          binary monthly means (BMM)
                                     file
                                  Version 1.0
                                   1 Sep 92


          Each file contains the monthly mean values of streamflow in
                 cubic feet per second (CFS) for one station.
      The filename is nnnnnnnn.BMM where nnnnnnnn is the station number.

                    There is one record for each water year
                      for which there is acceptable data.

                The file is sorted on water year (bytes 9-12).

         The file is a binary file - not an ASCII file.  It can not be
         printed or edited.  Sending it to the screen yields nonsense.

 Bytes   Format  Contents

  1-8     C*8    Station number - the 8 digit station number uniquely
                    identifying the station.
  9-12    I*4    Water year.  A water year starts in October of the calendar
                    year one year less than the water year and ends in
                    September of the calendar year the same as the water year.
                    For example, water year 1980 covers the period October 1,
                    1979 through September 30, 1980.
 13-16    R*4    October - Mean streamflow in CFS for October.
 17-20    R*4    November - Mean streamflow in CFS for November.
 21-24    R*4    December - Mean streamflow in CFS for December.
 25-28    R*4    January - Mean streamflow in CFS for January.
 29-32    R*4    February - Mean streamflow in CFS for February.
 33-36    R*4    March - Mean streamflow in CFS for March.
 37-40    R*4    April - Mean streamflow in CFS for April.
 41-44    R*4    May - Mean streamflow in CFS for May.
 45-48    R*4    June - Mean streamflow in CFS for June.
 49-52    R*4    July - Mean streamflow in CFS for July.
 53-56    R*4    August - Mean streamflow in CFS for August.
 57-60    R*4    September - Mean streamflow in CFS for September.


Conversion factor:

   Multiply cubic feet per second (CFS) by 0.02832 to obtain cubic meters per
second.


Format descriptions:

   C*8   a character string 8 bytes long.
   I*4   an integer number 4 bytes long.
   R*4   a real (float) number 4 bytes long.