8 Source code and program design

The source code of SHUD and SHUD-tool are avaliable via Github: https://github.com/SHUD-System/SHUD and https://github.com/SHUD-System/rSHUD.

Bhatt, Gopal. 2012. “A distributed hydrologic modeling system: Framework for discovery and management of water resources.” PhD thesis, Pennsylvania State University.

Bhatt, Gopal, Mukesh Kumar, and Christopher J. Duffy. 2014. “A tightly coupled GIS and distributed hydrologic modeling framework.” Environmental Modelling and Software 62: 70–84. https://doi.org/10.1016/j.envsoft.2014.08.003.

Kumar, M, C J Duffy, and P M Reed. 2004. “Enhancing the performance of feature selection algorithms for classifying hyperspectral imagery.” In Geoscience and Remote Sensing Symposium, 2004. IGARSS ’04. Proceedings. 2004 Ieee International, 5:3264–7 vol.5. C. https://doi.org/10.1109/IGARSS.2004.1370398.

Kumar, Mukesh, Gopal Bhatt, and Christopher J. Duffy. 2009. “An efficient domain decomposition framework for accurate representation of geodata in distributed hydrologic models.” International Journal of Geographical Information Science 23 (12): 1569–96. https://doi.org/10.1080/13658810802344143.


Li, Shuangcai, and Christopher J. Duffy. 2011. “Fully coupled approach to modeling shallow water flow, sediment transport, and bed evolution in rivers.” Water Resources Research 47 (3): 1–20. https://doi.org/10.1029/2010WR009751.

Qu, Yizhong. 2004. “An integrated hydrologic model for multi-process simulation using semi-discrete finite volume approach.” PhD thesis. http://gradworks.umi.com/31/72/3172997.html.

Qu, Yizhong, and Christopher J. Duffy. 2007. “A semidiscrete finite volume formulation for multiprocess watershed simulation.” Water Resources Research 43 (8): 1–18. https://doi.org/10.1029/2006WR005752.

Shi, Yuning, Douglas C. Baldwin, Kenneth J. Davis, Xuan Yu, Christopher J. Duffy, and Henry Lin. 2015. “Simulating high-resolution soil moisture patterns in the Shale Hills watershed using a land surface hydrologic model.” Hydrological Processes 29 (21): 4624–37. https://doi.org/10.1002/hyp.10593.

Shi, Yuning, Kenneth J. Davis, Fuqing Zhang, Christopher J. Duffy, and Xuan Yu. 2015. “Parameter estimation of a physically-based land surface hydrologic model using an ensemble Kalman filter: A multivariate real-data experiment.” Advances in Water Resources 83: 421–27. https://doi.org/10.1016/j.advwatres.2015.06.009.

Shu, Lele, Paul A Ullrich, and Christopher J Duffy. 2020. “Simulator for Hydrologic Unstructured Domains (SHUD v1.0): numerical modeling of watershed hydrology with the finite volume method.” Geoscientific Model Development 13 (6): 2743–62. https://doi.org/10.5194/gmd-13-2743-2020.

Yu, Xuan, Christopher Duffy, Doug C. Baldwin, and Henry Lin. 2014. “The role of macropores and multi-resolution soil survey datasets for distributed surface-subsurface flow modeling.” Journal of Hydrology 516: 97–106. https://doi.org/10.1016/j.jhydrol.2014.02.055.

Yu, Xuan, Anna Lamačová, Christopher Duffy, Pavel Krám, and Jakub Hruška. 2015. “Hydrological model uncertainty due to spatial evapotranspiration estimation methods.” Computers & Geosciences 90: 90–101. https://doi.org/10.1016/j.cageo.2015.05.006.