Tianfang Xu
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Phone: 480-965-7666
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WCPH 412 777 E. University Dr. Tempe, AZ 85287
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Mail code: 3005Campus: Tempe
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Tianfang Xu is an assistant professor in School of Sustainable Engineering and the Built Environment at Arizona State University. She holds a bachelor degree in Geotechnical Engineering from Nanjing University, China, and master’s and doctoral degrees in civil engineering from University of Illinois at Urbana-Champaign. Before joining ASU, she was a postdoctoral researcher at Michigan State University and a research assistant professor in Department of Civil and Environmental Engineering and Utah Water Research Laboratory, Utah State University. Her research focuses on numerical simulation of groundwater flow and solute transport, uncertainty quantification and applications of machine learning in hydrology.
- Ph.D. Civil Engineering, University of Illinois-Urbana-Champaign 2016
- M.S. Civil Engineering, University of Illinois-Urbana-Champaign 2012
- B.S. Geotechnical Engineering, Nanjing University, China 2010
Xu's research includes numerical simulation of groundwater flow and solute transport, uncertainty quantification, and applications of machine learning in geoscience.
Our research group combines process-based models with data-driven methods to improve predictive capability and understanding of water resources systems, groundwater in particular, under human adaptations and global change. Recent projects include hybrid process-based and deep learning modeling of a snow dominated mountainous karst watershed, using remote sensing and machine learning for crop irrigation monitoring, and regional scale viability assessment of agricultural managed aquifer recharge.
Tyson C, Longyang Q, Neilson BT, Zeng R, & Xu T. (2023). Effects of Meteorological Forcing Uncertainty on High-Resolution Snow Modeling and Streamflow Prediction in a Mountainous Karst Watershed. Journal of Hydrology, 129304.
Rudko N, Muenich RL, Garcia M, & Xu T. (2023). Development of a point-source model to improve simulations of manure lagoon interactions with the environment. Journal of Environmental Management, 325:116332.
Li, P., Xu, T., Wei, S., & Wang, Z. H. (2022). Multi-objective optimization of urban environmental system design using machine learning. Computers, Environment and Urban Systems, 94, 101796.
Xu, T., Longyang, Q., Tyson, C., Zeng, R., & Neilson, B. T. (2022). Hybrid Physically Based and Deep Learning Modeling of a Snow Dominated, Mountainous, Karst Watershed. Water Resources Research, 58(3), e2021WR030993.
Xu, T., Guan, K., Peng, B., Wei, S., & Zhao, L. (2021). Machine Learning-Based Modeling of Spatio-Temporally Varying Responses of Rainfed Corn Yield to Climate, Soil, and Management in the US Corn Belt. Frontiers in artificial intelligence, 4, 40.
Xu, T., & Liang, F. (2021). Machine learning for hydrologic sciences: An introductory overview. Wiley Interdisciplinary Reviews: Water, 8(5), e1533.
Tennant, H., Neilson, B.T., Miller, M.P. and Xu, T. (2021). Ungaged inflow and loss patterns in urban and agricultural sub‐reaches of the Logan River Observatory. Hydrological Processes, doi: 10.1002/hyp.14097.
Wang, Y., Shi, L., Xu, T., Zhang, Q., Ye, M. and Zha, Y. (2021). A nonparametric sequential data assimilation scheme for soil moisture flow. Journal of Hydrology, 593, doi: 10.1016/j.jhydrol.2020.125865.
Cai, Y., Guan, K., Lobell, D., Potgieter, A.B., Wang, S., Peng, J., Xu, T., Asseng, S., Zhang, Y., You, L. and Peng, B. (2019). Integrating satellite and climate data to predict wheat yield in Australia using machine learning approaches. Agricultural and forest meteorology, 274, pp.144-159.
Xu, T., Deines, J. M., Kendall, A. D., Basso, B., & Hyndman, D. W. (2019). Addressing challenges for mapping irrigated fields in subhumid temperate regions by integrating remote sensing and hydroclimatic data. Remote Sensing, 11(3), 370.
Hyndman, D.W., Xu, T., Deines, J.M., Cao, G., Nagelkirk, R., Viña, A., McConnell, W., Basso, B., Kendall, A.D., Li, S. and Luo, L., 2017. Quantifying changes in water use and groundwater availability in a megacity using novel integrated systems modeling. Geophysical Research Letters, 44(16), pp.8359-8368.
Xu, T., Valocchi, A. J., Ye, M., & Liang, F. (2017). Quantifying model structural error: Efficient Bayesian calibration of a regional groundwater flow model using surrogates and a data‐driven error model. Water Resources Research, 53(5), 4084-4105.
Xu, T., Valocchi, A. J., Ye, M., Liang, F., & Lin, Y. F. (2017). Bayesian calibration of groundwater models with input data uncertainty. Water Resources Research, 53(4), 3224-3245.
Xu, T., & Valocchi, A. J. (2015). A Bayesian approach to improved calibration and prediction of groundwater models with structural error. Water Resources Research, 51(11), 9290-9311.
Xu, T. and Valocchi, A.J., 2015. Data-driven methods to improve baseflow prediction of a regional groundwater model. Computers & Geosciences, 85, pp.124-136.
Choi, J., E. Amir, T. Xu and A. J. Valocchi. Learning relational Kalman filtering. In Proc. 29th AAAI Conf. on Artificial Intelligence (AAAI-15), Austin, TX, Jan. 2015.
Xu, T., Valocchi, A. J., Choi, J., & Amir, E. (2014). Use of machine learning methods to reduce predictive error of groundwater models. Groundwater, 52(3), 448-460.
Courses
2025 Spring
Course Number | Course Title |
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CEE 792 | Research |
CEE 799 | Dissertation |
CEE 493 | Honors Thesis |
CEE 792 | Research |
CEE 799 | Dissertation |
CEE 540 | Groundwater Hydrology |
CEE 598 | Special Topics |
2024 Fall
Course Number | Course Title |
---|---|
CEE 492 | Honors Directed Study |
CEE 590 | Reading and Conference |
CEE 599 | Thesis |
CEE 792 | Research |
CEE 795 | Continuing Registration |
CEE 799 | Dissertation |
CEE 341 | Fluid Mech for Civil Engineers |
CEE 341 | Fluid Mech for Civil Engineers |
CEE 341 | Fluid Mech for Civil Engineers |
CEE 792 | Research |
CEE 341 | Fluid Mech for Civil Engineers |
CEE 799 | Dissertation |
CEE 592 | Research |
CEE 792 | Research |
2024 Summer
Course Number | Course Title |
---|---|
CEE 792 | Research |
CEE 792 | Research |
CEE 799 | Dissertation |
2024 Spring
Course Number | Course Title |
---|---|
CEE 493 | Honors Thesis |
CEE 792 | Research |
CEE 792 | Research |
CEE 799 | Dissertation |
CEE 540 | Groundwater Hydrology |
CEE 598 | Special Topics |
2023 Fall
Course Number | Course Title |
---|---|
CEE 492 | Honors Directed Study |
CEE 590 | Reading and Conference |
CEE 599 | Thesis |
CEE 792 | Research |
CEE 799 | Dissertation |
CEE 341 | Fluid Mech for Civil Engineers |
CEE 341 | Fluid Mech for Civil Engineers |
CEE 341 | Fluid Mech for Civil Engineers |
CON 492 | Honors Directed Study |
CEE 792 | Research |
CEE 341 | Fluid Mech for Civil Engineers |
CEE 799 | Dissertation |
CEE 592 | Research |
CEE 792 | Research |
2023 Summer
Course Number | Course Title |
---|---|
CEE 792 | Research |
CEE 792 | Research |
2023 Spring
Course Number | Course Title |
---|---|
CEE 493 | Honors Thesis |
CEE 792 | Research |
CEE 792 | Research |
CEE 591 | Seminar |
CEE 540 | Groundwater Hydrology |
CEE 598 | Special Topics |
2022 Fall
Course Number | Course Title |
---|---|
CEE 492 | Honors Directed Study |
CEE 792 | Research |
CEE 799 | Dissertation |
CEE 341 | Fluid Mech for Civil Engineers |
CEE 341 | Fluid Mech for Civil Engineers |
CEE 341 | Fluid Mech for Civil Engineers |
CON 492 | Honors Directed Study |
CEE 792 | Research |
CEE 341 | Fluid Mech for Civil Engineers |
CEE 799 | Dissertation |
CEE 592 | Research |
CEE 792 | Research |
2022 Summer
Course Number | Course Title |
---|---|
CEE 792 | Research |
2022 Spring
Course Number | Course Title |
---|---|
CEE 493 | Honors Thesis |
CEE 792 | Research |
CEE 792 | Research |
2021 Fall
Course Number | Course Title |
---|---|
CEE 492 | Honors Directed Study |
CEE 792 | Research |
CEE 799 | Dissertation |
CEE 341 | Fluid Mech for Civil Engineers |
CEE 341 | Fluid Mech for Civil Engineers |
CEE 341 | Fluid Mech for Civil Engineers |
CON 492 | Honors Directed Study |
CEE 792 | Research |
CEE 341 | Fluid Mech for Civil Engineers |
CEE 799 | Dissertation |
CEE 592 | Research |
CEE 792 | Research |
2021 Spring
Course Number | Course Title |
---|---|
CEE 792 | Research |
CEE 540 | Groundwater Hydrology |
CEE 792 | Research |
2020 Fall
Course Number | Course Title |
---|---|
CEE 792 | Research |
CEE 799 | Dissertation |
CEE 341 | Fluid Mech for Civil Engineers |
CEE 341 | Fluid Mech for Civil Engineers |
CEE 341 | Fluid Mech for Civil Engineers |
CEE 792 | Research |
CEE 341 | Fluid Mech for Civil Engineers |
CEE 799 | Dissertation |
CEE 591 | Seminar |
CEE 792 | Research |
2020 Spring
Course Number | Course Title |
---|---|
CEE 540 | Groundwater Hydrology |
2019 Fall
Course Number | Course Title |
---|---|
CEE 341 | Fluid Mech for Civil Engineers |
CEE 341 | Fluid Mech for Civil Engineers |
CEE 341 | Fluid Mech for Civil Engineers |
CEE 341 | Fluid Mech for Civil Engineers |