DOI: 10.3334/CDIAC/atg.db1019

This readme file is intended to provide a quick overview of the
hierarchy of the subdirectory (/pub/db1019) containing the
stratospheric radionuclide and trace gas databases (RANDAB and TRACDAB)
provided to the Carbon Dioxide Information Analysis Center (CDIAC) by
Robert Leifer and Nita Chan of the U.S. Department of Energy's
Environmental Measurement Laboratory (EML).  After reading this text
users are strongly encouraged to retrieve and read one of two identical
files (readfirs.txt or readfirs.wpd) that provide further details on
the content and format of the files comprising these databases.

A.  DATA FILES

This subdirectory "/pub/db1019" contains three subdirectories 
("ascii", "document", and "foxidata") and two identical 
versions of this readme file (readme.txt & readme.wpd).  Within 
these subdirectories can be found the data files in various formats 
as well as associated documents.  These are described in the 
following paragraphs.

1. Main Data Files

You have a choice of working with the radionuclide data in an ASCII
format or Microsoft FoxPro format.  These files can be found in the
either the /pub/db1019/ascii or foxidata subdirectories.  There are two
additional text files, coltic.txt and coltih.txt in the 
"/pub/db1019/document/textasci" subdirectory.  These files provide 
column identification names which can be added to the randab_c.txt and 
randab_h.txt data files.

2. Additional Data Files

Between the years 1959 and 1970 plutonium isotopic ratio data were
published in HASL-273 (April 1973) with no identifying filter numbers.
Because of the lack of filter numbers, this set of data is not included
in the files comprising RANDAB, but instead have been incorporated into
a separate file 

/pub/db1019/foxidata/pu59to70.xls or

/pub/db1019/dataasci/pu59to70.txt 

A brief description of the files pu59to70.xls or pu59to70.txt can be 
found in either

/pub/db1019/document/textasci/appenda.txt or 

/pub/db1019/document/textwp/appenda.wpd 

[Note: To complete the plutonium database for the years 1975 thru 1981, 
use RANDAB].

3. TRACDAB Data

The TRACDAB data files are provided only in an ASCII format and can 
be found in the /pub/db1019/ascii/tracegas subdirectory.

B. ASSOCIATED TEXT FILES

The /pub/db1019/document subdirectory contains the "textasci" or "textwp"
subdirectories which provide the descriptive text for all data files.