TY - RPRT TI - Detecting temporal change in land-surface altitude using robotic land-surveying techniques and geographic information system applications at an earthen dam site in Southern Westchester County, New York AU - Michael L. Noll AU - Anthony Chu PY - 2017 DO - 10.3133/ofr20171028 UR - https://pubs.usgs.gov/publication/ofr20171028 ID - ofr20171028 ER -