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Sarah McDonald (she/her/hers) is a geographer with the U.S. Geological Survey, located at the Chesapeake Bay Program Office. She is a member of the Chesapeake Bay Program’s Geographic Information Systems (GIS) and Land Data teams. She specializes in land change science, including working on the Chesapeake Bay Land Change Model (CBLCM) and assisting the Chesapeake Conservancy to map 1-meter resolution Land Use/Land Cover (LULC) and LULC change for a 100,000 square-mile region within and surrounding the Chesapeake Bay watershed. Sarah holds dual Bachelor‘s degrees in Computer Science and Environment Science and Geography from the University of Maryland, Baltimore County.