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Water Resources of the United States

NSS, Version 6

National Streamflow Statistics program


NOTE: A new version of the program is now available. See Version History link below for further details.

Information

Software

NSS is a 2-part download consisting of a program installer and a password-protected database file which must be used together. See the README file for installation instructions.

Select both of the following links to retrieve the two distribution files required for a complete installation of NSS:

Software Downloads

NSSv6.1.exe

NSS Program Installer: self-extracting executable of the NSS software (2,411,998 bytes, posted 2014-10-08). Please de-install any previous version of NSS and replace it with the most recent version before using the latest NSS database.

NSS_v6_2014-10-07.mdb

NSS Database: needed by NSS software (24,129,536 bytes). Previous version of the database was dated 2014-08-06.

Please note: The database for NSS can change frequently as equations are added and updated. Please check this web site often to determine if a new version of the database is available. The version history link will document any changes made to the database or the software.

Region-of-Influence Data Files

Regional-of-Influence (ROI) is a method of developing custom regression equations for estimating streamflow statistics for individual ungaged sites. The method is described in the documentation provided below. One or two additional files need to be downloaded for each state and placed in the directory in which users have installed the NSS software and database to allow NSS to run ROI regressions.

Data Files

Idaho

ID.rec.bin.zip

ID.rho.bin.zip

Louisiana

LA.rec.bin.zip

LA.rho.bin.zip

Minnesota

MN.rec.bin.zip

MN.rho.bin.zip

Texas

TX.rec.bin.zip

Documentation

Documentation for Individual States


Point of contact for NSS:

Todd Koenig
U.S. Geological Survey
Office of Surface Water
1400 Independence Road, MS100
Rolla, MO 65401
(electronic mail: tkoenig@usgs.gov)


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