TY - RPRT TI - Efficient delineation of nested depression hierarchy in digital elevation models for hydrological analysis using level-set method AU - Qiusheng Wu AU - Charles R. Lane AU - Lei Wang AU - Melanie K. Vanderhoof AU - Jay R. Christensen AU - Hongxing Liu PY - 2018 DO - 10.1111/1752-1688.12689 UR - https://pubs.usgs.gov/publication/70199794 ID - 70199794 ER -