Record Display for the EPA National Library Catalog


Main Title Use and Misuse of the Terms Watershed and Stream Order.
Author Hughes, Robert M. ; Omernik, James M. ;
CORP Author Corvallis Environmental Research Lab., OR.
Year Published 1981
Report Number EPA-600/J-81-599;
Stock Number PB83-140707
Additional Subjects Streams ; Watersheds ; classifications ; Terminology ; Stream flow ; Maps ; Reprints ; Discharge(Streams)
Library Call Number Additional Info Location Last
NTIS  PB83-140707 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 9p
There are several problems with applications of the terms 'watershed' and 'stream order.' Those problems are discussed within the context of a national watershed/stream classification we believe necessary for the rational management and scientific study of streams. Although topographic watersheds can be accurately defined in most of the United States, in about 40 percent of the country it is not possible for climatic and geomorphic reasons. Hence, watersheds are not always suitable or ideal units for research and management. The authors suggest using mean annual discharge, watershed area, and mean annual discharge range instead of stream order. Those terms provide a more meaningful characterization of key physical properties and biological capacities of streams.