Samiah Moustafa's research focuses on studying the influences of global climate change on the hydrology of the Greenland ice sheet. Some of the most exceptional global environmental changes are occurring in the high latitudes of the Arctic, particularly along the Greenland ice sheet. Due to a warming climate, Greenland ice sheet mass loss has accelerated, strongly driven by enhanced meltwater runoff exiting to surrounding oceans. This may have profound implications for regional hydrology, ocean circulation, as well as global sea level rise. Despite climate models and satellites confirming these recent trends, urgent questions regarding Greenland ice sheet's meltwater losses and its future sensitivity to climate change are not well understood. Partly, this is due to a lack of observational evidence capturing how much meltwater is truly lost from the ice sheet. Braided rivers, found primarily in southwest Greenland, may best provide such data. In my research, I use high spatial resolution satellite imagery, three-dimensional airborne point data, and surface-based hydrologic measurements to better comprehend braided river dynamics and meltwater runoff flow patterns along the ice sheet edge. This will allow me to enhance the scientific understanding of Greenland ice sheet meltwater loss to surrounding oceans and its role in Earth's hydroclimatological system. Ultimately, my work will help constrain estimates of projected sea level rise.