U.S. Geological Survey WRI Report 83-4160 "A Digital Model for Streamflow Routing by Convolution Methods" In Reply Refer To: October 20, 1983 EGS-Mail Stop 415 SURFACE WATER BRANCH TECHNICAL MEMORANDUM NO. 84.01 Subject: PUBLICATION--U.S. Geological Survey WRI Report 83-4160 "A Digital Model for Streamflow Routing by Convolution Methods" by W. H. Doyle, Jr., J. O. Shearman, G. J. Stiltner, and W. R. Krug The subject report documents the one-dimensional streamflow routing model CONROUT. CONROUT is being used in the Cost-Effectiveness Analysis of the Stream-Gaging Program as an alternative method of generating streamflow information at gaging stations. This streamflow routing model can also be used to derive homogeneous streamflow statistics for watersheds having varying degrees of regulation. The report includes both hypothetical and field application examples that provide guidelines for using the model. Currently, the model is available on the Geological Survey's AMDAHL computer and in the future will be made available for use on the PRIME. The job control language (JCL) for retrieving data from WATSTORE and executing the CONROUT program are documented in Appendix 4 of the subject report. Any questions pertaining to using the model can be directed to W. Harry Doyle, Jr., Gulf Coast Hydroscience Center, NSTL, Mississippi (FTS 494-1509). Marshall E. Moss Chief, Surface Water Branch Attachment Distribution: A, FO