I'm an Earth scientist at the Pacific Northwest National Laboratory. My research interests include developing computationally robust models for global terrestrial biophysical processes that efficiently use high-performance computing. My research projects include:
  • E3SM: The U.S. DOE's Earth System Model in which my research focuses is on the development of biophysical processes in the E3SM Land Model (ELM) (code repository).
  • MPP-LSM library: Multi-Physics Problem (MPP) library is a standalone library that solves biophysics problems relevant to global land surface models (code repository).
  • TDycore library: A Terrestrial Dynamical Core for the ELM to solve 3D subsurface processes (code repository).
  • PFLOTRAN: A Massively Parallel Reactive Flow and Transport Model for describing Subsurface Processes (code repository).
  • Land Climate Process Team: Harnessing High-Resolution Terrestrial Information to Refine Atmosphere-to-Land interactions in Earth System Models


Modeling the joint effects of vegetation characteristics and soil properties on ecosystem dynamics in a Panama tropical forest

Yanyan Cheng, L. Ruby Leung, Maoyi Huang, Charles Koven, Matteo Detto, Ryan Knox, Gautam Bisht, Mario Bretfeld, Rosie A. Fisher

Journal of Advances in Modeling Earth Systems, pp. e2021MS002603

Using an Uncertainty Quantification Framework to Calibrate the Runoff Generation Scheme in E3SM Land Model V1

Donghui Xu, Gautam Bisht, Khachik Sargsyan, Chang Liao, L. Ruby Leung

Geoscientific Model Development Discussion

Root lateral interactions drive water uptake patterns under water limitation

Elizabeth Agee, Lingli He, Gautam Bisht, Valentin Couvreur, Parisa Shahbaz, Felicien Meunier, Christopher M Gough, Ashley M Matheny, Gil Bohrer, Valeriy Ivanov

Advances in Water Resources, Elsevier, 2021, p. 103896

Validation of the Community Land Model Version 5 Over the Contiguous United States (CONUS) Using In Situ and Remote Sensing Data Sets

Yanyan Cheng, Maoyi Huang, Bowen Zhu, Gautam Bisht, Tian Zhou, Ying Liu, Fengfei Song, Xiaogang He

Journal of Geophysical Research: Atmospheres, 2021, pp. e2020JD033539

A Parameterization of Sub-grid Topographical Effects on Solar Radiation in the E3SM Land Model (Version 1.0): Implementation and Evaluation Over the Tibetan Plateau

Dalei Hao, Gautam Bisht, Yu Gu, Wei-Liang Lee, Kuo-Nan Liou, L Ruby Leung

Geoscientific Model Development, vol. 14(10), Copernicus GmbH, 2021, pp. 6273-6289

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U.S. DOE's Earth System Model


Mid-Atlantic coastal evolution