TY - RPRT TI - Optimal hydrograph separation using a recursive digital filter constrained by chemical mass balance, with application to selected Chesapeake Bay watersheds AU - Jeff P. Raffensperger AU - Anna C. Baker AU - Joel D. Blomquist AU - Jessica A. Hopple PY - 2017 DO - 10.3133/sir20175034 UR - https://pubs.usgs.gov/publication/sir20175034 ID - sir20175034 ER -