TY - RPRT TI - Methods for computing 7Q2 and 7Q20 low-streamflow statistics to account for possible trends AU - Luther Schalk AU - Robert W. Dudley AU - Annalise G. Blum PY - 2022 DO - 10.3133/ofr20211111 UR - https://pubs.usgs.gov/publication/ofr20211111 ID - ofr20211111 ER -