Methods for estimating the magnitude and frequency of floods in California that are not substantially affected by regulation or diversions have been updated. Annual peak-flow data through water year 2006 were analyzed for 771 streamflow-gaging stations (s
Gotvald, Anthony J. agotvald@usgs.gov,Barth, Nancy A. nabarth@usgs.gov,Veilleux, Andrea G. aveilleux@usgs.gov,et al. Methods for determining magnitude and frequency of floods in California, based on data through water year 2006. 2012-01-01.