Assessing the potential impacts of dam operation on daily flow at ungauged river reaches

Application of a unimodality test to daily flow series recorded at stations located in the study region confirms that dam operation can result in non-unimodal daily flow distribution. Estimation of DOR values for all reaches of the study region shows that regulated river reaches could be potentially influenced by dam operation when DOR > 8. Of the 29% regulated river reaches (i.e. with one or more upstream dams), approximately 30% could be potentially influenced (DOR > 8) by dam operation.