Transmittal of Article on Discharge Measure Uncertainty In Reply Refer To: January 24, 1989 WGS-Mail Stop 415 OFFICE OF SURFACE WATER TECHNICAL MEMORANDUM NO. 89.03 Subject: Transmittal of Article on Discharge Measurement Uncertainty The attached article, "Uncertainties in the single determination of river discharge: a literature review," by P. M. Pelletier, appeared in the October 1988 issue (vol. 15, no. 5) of the Canadian Journal of Civil Engineering. It is a comprehensive summary and assessment of Canadian, inter- national, and U.S. Geological Survey practice for evaluating the accuracy of current-meter discharge measurements. It should be brought to the attention of all personnel involved in making, checking, reviewing, and evaluating current-meter discharge measurements. Ernest F. Hubbard, Jr. Acting Chief, Office of Surface Water Attachment WRD Distribution: FO, SL