Open-File Report 92-129, Hydro-Climatic Data Network: A U.S. Geological Survey streamflow data set for the United States for the study of climatic variations, In Reply Refer To: November 3, 1992 Mail Stop 415 OFFICE OF SURFACE WATER TECHNICAL MEMORANDUM NO. 93.02 Subject: Open-File Report 92-129, Hydro-Climatic Data Network: A U.S. Geological Survey streamflow data set for the United States for the study of climatic variations, 1874-1988 by J. R. Slack and Jurate Maciunas Landwehr The Office of Surface Water (OSW) is pleased to distribute Open-File Report 92-129, Hydro-Climatic Data Network: A U.S. Geological Survey streamflow data set for the United States for the study of climatic variations, 1874-1988, by J. R. Slack and Jurate Maciunas Landwehr. The OSW actively supported the National Research Program project leading to this report. All District offices participated as well, helping to define the network of gaging stations on which the report is based and assuring the quality of the discharge records. The network, consisting of 1,659 stations with 73,231 station years of record, was selected from available gaging stations in every state. Man's activities are judged to have, at most, only minor effect on the streamflows. The network excludes records that have been lengthened by estimation and those that have been constructed from records of other stations. The report contains illustrations and tables, which show the network stations, indicate suitable years of record, and give basin characteristics. It includes a 5 1/4-inch diskette (high density, DOS format), providing this information in electronic form for ease in analysis. The information contained on the diskette is written in ASCII character-type mode. A CD-ROM is being prepared that will include the selected records, which have been subjected to extensive quality-assurance scrutiny. The CD-ROM, planned for distribution in early 1993, will have software included to help manipulate and interpret the data. It will be issued as a stand-alone numbered report. In the meantime you may obtain streamflow records for the stations directly from WATSTORE or through NAWDEX. Additional copies of Open-File Report 92-129 may be obtained from the authors or from the OSW. Charles W. Boning, Chief Office of Surface Water Attachment WRD DISTRIBUTION: A, B, Amended FO Area Hydrologists, WRD Climate Coordinator Chief, Branch of Regional Research, NR, CR, WR (2 copies each) Chief, Office of Hydrologic Research