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报告题目:Land Surface Modeling at a Crossroads: Progress, Complexity, and the Road to Reliability and Robustness

报告时间:2026年6月15日 16:00-17:00

报告地点:清华大学蒙民伟科技大楼南楼818会议室

主 讲 人:梁旭/教授

报告时间 2026年6月15日 16:00-17:00 报告地点 清华大学蒙民伟科技大楼南楼818会议室
主 讲 人 梁旭/教授

讲座简介:

Thirty years have passed since the publication of the VIC land surface model (Liang et al., 1994). Since then, advances in ecology, biology, hydrology, and atmospheric sciences have greatly expanded our understanding of the processes governing land–atmosphere interactions. Modern land surface models (LSMs) now seek not only to represent exchanges of water, energy, and momentum, but also to capture ecosystem responses through coupled water, energy, and carbon cycling within the soil–plant–atmosphere continuum.

In this talk, I will review the evolution of modern LSMs, including VIC, and discuss how incorporating new scientific understanding has improved representations of water, energy, carbon, and nitrogen interactions. These advances, however, have also increased model complexity and introduced unconstrained parameters that can contribute to equifinality. I will present a two-fold approach to addressing this challenge.

As modeling goals become more ambitious, additional challenges arise, including cross-disciplinary model integration and scaling models for broader applications. To support these efforts, we have developed CyberWater, a cyberinfrastructure platform that integrates data and models to facilitate exploration, evaluation, model coupling, and collaboration. By lowering technical barriers, CyberWater enables researchers, small teams, and students to conduct complex, hypothesis-driven studies across disciplines.

主讲人简介:

Dr. Xu Liang is a full Professor of Hydrology at the University of Pittsburgh. Her research focuses on land surface and ecohydrological modeling, hydroinformatics and machine learning, cyber systems, and environmental sensing technologies. She collaborates extensively with atmospheric scientists, plant biologists, and computer scientists.

Professor Liang played a leading role in the development of the VIC and VIC+ land surface models. She is a Fellow of the American Meteorological Society and has received recognition for her research, including the Chancellor’s Distinguished Research Award from the University of Pittsburgh, the Carnegie Science Environmental Award, and the Hellman Foundation Junior Faculty Research Award. She previously held the William Kepler Whiteford Professorship and was a faculty member at the University of California, Berkeley before joining Pittsburgh. Dr. Liang earned her Ph.D. in hydrology from the University of Washington and completed postdoctoral training at Princeton University.

腾讯会议:203-246-359

微博直播:https://weibo.com/u/2404245107


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