Mixed-station extension of monthly streamflow records.

Monthly streamflow records at a site are sometimes extended by exploiting interstation correlation of streamflow, often through simple linear regression with a base station having a long-term record. An approach is presented which selects a base station from among several in a region for filling in missing data. It differs from traditional approaches in that different stations can be selected as the base station to fill in different values. Application of the approach demonstrated large reductions in the streamflow prediction error for two sites in Colorado.-from ASCE Publications Information