Comment on “The Current State of Undergraduate Hydrology Courses in North America: A Path Forward” by Kelleher et al. (2026): Theoretical Coherence at the Core, Outcome Pluralism in Practice
Kelleher et al. (2026, https://doi.org/10.1029/2025wr041736) provide a timely synthesis of undergraduate hydrology syllabi and offer a path forward for modernizing hydrology education, with thoughtful recommendations, including a call for syllabus convergence. In this Comment, we offer a complementary perspective--“Theoretical Coherence at the Core, Outcome Pluralism in Practice”-- and clarify the level at which convergence is most constructive. We support convergence on foundational hydrologic theory and hydrologic process reasoning, which define the scientific coherence of the discipline. However, we argue that structural uniformity in syllabus architecture or learning endpoints is neither necessary nor sufficient to ensure disciplinary rigor or educational effectiveness. Outcome pluralism—variation in institutional mission, student preparation, instructional expertise, learning objectives, and career alignment—is both appropriate and necessary across institutions, instructors, and student populations. Emphasizing both theoretical coherence and outcome pluralism strengthens hydrology education modernization while preserving disciplinary rigor and adaptability.
Hydrology, undergraduate courses, North America, structural uniformity, syllabus
Hong, Y., Moradkhani, H., Habib, E., Yang, T., & Vogel, J. (2026). Comment on “The Current State of Undergraduate Hydrology Courses in North America: A Path Forward” by Kelleher et al. (2026): Theoretical Coherence at the Core, Outcome Pluralism in Practice. Water Resources Research, 62(7). https://doi.org/10.1029/2026wr044046. CSS26-40.