sizedata(1)      U.S. Geological Survey (wrdapp)      sizedata(1)


NAME
       sizedata - Data entry for sediment size statistics program

ABSTRACT
       SIZEDATA allows for keyboard entry and modification of particle-size
       analysis data and storage into a direct-access file for input to the
       sedsize program.

METHOD
       SIZEDATA allows the user to create a new file, add to an existing
       file, modify data in an existing file, and list data to the screen
       or store in a file.  Particle-size distribution data entry is
       facilitated by use of a table for picking a sequence or individual
       particle diameters or phi values, and also allows particle diameters
       to be entered individually.  Additional data sets can be entered
       using the same set of particle diameters or a new set.

HISTORY
       Version 1.9 1997/06/02 - Fixed problem with end of file check on
          read of direct access files.

       Version 1.80 1995/08/11 - Code clean-up, prompts in mixed case

       Version 1.4 1994/10/26 - Fortran version as ported to UNIX
          workstations

       1986 - first release - Fortran version for use on Prime computers
          and a BASIC version for use on personal computers

DATA REQUIREMENTS
       Size-distribution data are entered interactively.  Each distribution
       (data set) consists of a station description (up to 80 characters),
       date of sample, time of sample, number of particle diameter sizes
       (up to 33), the diameter sizes in millimeters, and the percent-finer
       value for each size.  Percent-finer values of 0 are ignored by the
       program.

SYSTEM REQUIREMENTS
       SIZEDATA is written in Fortran 77 with the following extension:  use
       of variable names longer than six characters.  Generally, the
       program is easily installed on most computer systems.  The code has
       been used on UNIX-based computers and DOS-based 386 or greater
       computers having a math coprocessor and 1 mb of memory.

DOCUMENTATION
       Stevens, H.H., and Hubbell, D.W., 1986, Computer programs for
          computing particle-size statistics of fluvial sediments: U.S.
          Geological Survey Water-Resources Investigations Report 86-4141,
          72 p.

REFERENCES
       Folk, R.L., 1968, Petrology of Sedimentary Rocks:  Austin, Hemphill
          Publishing Co., p. 44-50.




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sizedata(1)      U.S. Geological Survey (wrdapp)      sizedata(1)


       Inman, D.L., 1952, Measures for describing the size distribution of
          sediments:  Journal of Sedimentary Petrology, v. 22, no. 3, p.
          125-245.

       Krumbein, W.C., 1936, Application of logarithmic moments to size
          frequency distribution of sediments:  Journal of Sedimentary
          Petrology, v. 6, no. 1, p. 35-47.

       Trask, P.D., 1932, Origin and environment of source sediments of
          petroleum: Houston, Gulf Publishing Co., 323 p.

CONTACTS
       Operation and Distribution:
          U.S. Geological Survey
          Hydrologic Analysis Software Support Program
          437 National Center
          Reston, VA 20192

          h2osoft@usgs.gov

       Official versions of U.S. Geological Survey water-resources analysis
       software are available for electronic retrieval via the World Wide
       Web (WWW) at:

                  http://water.usgs.gov/software/

       and via anonymous File Transfer Protocol (FTP) from:

                  water.usgs.gov (path: /pub/software).

       The WWW page and anonymous FTP directory from which the SEDSIZE
       software can be retrieved are, respectively:

                  http://water.usgs.gov/software/sedsize.html
                                --and--
                  /pub/software/surface_water/sedsize

SEE ALSO
       sedsize(1) - Particle-size statistics of fluvial sediments


















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