Availability of Y2K compliant versions of Branch and TDDS software packages 

In Reply Refer To: 
Mail Stop 
415                                                                        
                                                    June 5, 2000 


OFFICE OF SURFACE WATER TECHNICAL MEMORANDUM NO. 00.01 

Subject:  Availability of Y2K compliant versions of Branch and TDDS 
          software packages 

This memorandum announces the availability of Branch4.4 and TDDS6.1 
software packages for distribution within the U.S. Geological Survey.  
These packages contain changes to earlier versions to address problems 
related to Y2K and a TDDS problem with retrieving data from multiple data 
sets. 

The attached summary provides a description of changes in the input file 
formats and specific details on the revisions made to Branch, TDDS, and 
the associated library package.  Please note that all graphics output has 
been disabled in Branch4.4 and TDDS6.1. 

The TDDS problem with retrieving data from multiple data sets resulted in 
data being incorrectly retrieved from the TDDS database.  This error was 
insidious because BRANCH failed to detect the error and report it in the 
output.  This affects both the TDDS and Branch programs.  All Branch 
simulations that used a TDDS database should be rechecked to verify that 
the correct time-series data was retrieved and used.  See the attached 
summary for specific details. 

The new versions are not currently available from the USGS/WRD software 
web site (HASS).  Executables for Branch4.4 and TDDS6.1 are available by 
anonymous ftp at qmsbs2.er.usgs.gov in directory /var/ftp/pub/branch as 
program files "branch" and "tdds" for the Sun operating system, and 
"branch.exe" and "tdds.exe" for the NT4.0 operating system.  Questions and 
source code requests regarding these versions of Branch, TDDS, and the 
associated library package (LIBUTL), should be made by email to 
jfulford@usgs.gov. 



                        Thomas H. Yorke 
                        Chief, Office of Surface Water 

Attachment 

Distribution:  A, B, FO, PO 



Thomas H. Yorke
Chief, Office of Surface Water
U. S. Geological Survey
415 National Center
Reston, VA 20192

Voice: 703-648-5305
Fax: 703-648-572