A statewide study was conducted to develop regression equations for estimating six selected low-flow frequency statistics and harmonic mean flows for ungaged stream sites in Iowa. The estimation equations developed for the six low-flow frequency statistic
Eash, David A. daeash@usgs.gov,Barnes, Kimberlee K.. Methods for estimating selected low-flow frequency statistics and harmonic mean flows for streams in Iowa. 2012-01-01.