TY - RPRT TI - Causal effect of impervious cover on annual flood magnitude for the United States AU - Annalise G. Blum AU - Paul J. Ferraro AU - Stacey A. Archfield AU - Karen R. Ryberg PY - 2020 DO - 10.1029/2019gl086480 UR - https://pubs.usgs.gov/publication/70217011 ID - 70217011 ER -