Dr. Kamini Singha’s work has been transformative in advancing our predictive understanding of transport and transformation in Earth’s critical zone. She integrates empirical, numerical, and theoretical advances at scales spanning individual pores to regional aquifers, and works seamlessly across disciplines to connect otherwise disparate fields. Her work has both applied and basic research dimensions, ensuring advances inform best practices across the industry. That she has achieved prominence in research while maintaining a successful portfolio of teaching, mentoring, and service to the profession is particularly impressive. Indeed, Singha has fostered the burgeoning discipline of hydrogeophysics and ensured that this discipline, and its role in critical zone science, is an open, accessible, and welcoming field. Here, we summarize Singha’s impact on hydrologic science as a researcher, educator, mentor, and agent of change in the field.
