HR: 1330h
AN: H12E-1028    [PDF]
TI: Web-Based Model Visualization Tools to Aid in Model Optimization and Uncertainty Analysis
AU: * Alder, J
EM: jalder_ucr@hotmail.com
AF: University of California, Department of Environmental Sciences University of California, Riverside, CA 92521 United States
AU: van Griensven, A
EM: annvg@mail.ucr.edu
AF: University of California, Department of Environmental Sciences University of California, Riverside, CA 92521 United States
AU: Meixner, T
EM: tmeixner@mail.ucr.edu
AF: University of California, Department of Environmental Sciences University of California, Riverside, CA 92521 United States
AB: Individuals applying hydrologic models have a need for a quick easy to use visualization tools to permit them to assess and understand model performance. We present here the Interactive Hydrologic Modeling (IHM) visualization toolbox. The IHM utilizes high-speed Internet access, the portability of the web and the increasing power of modern computers to provide an online toolbox for quick and easy model result visualization. This visualization interface allows for the interpretation and analysis of Monte-Carlo and batch model simulation results. Often times a given project will generate several thousands or even hundreds of thousands simulations. This large number of simulations creates a challenge for post-simulation analysis. IHM's goal is to try to solve this problem by loading all of the data into a database with a web interface that can dynamically generate graphs for the user according to their needs. IHM currently supports: a global samples statistics table (e.g. sum of squares error, sum of absolute differences etc.), top ten simulations table and graphs, graphs of an individual simulation using time step data, objective based dotty plots, threshold based parameter cumulative density function graphs (as used in the regional sensitivity analysis of Spear and Hornberger) and 2D error surface graphs of the parameter space. IHM is ideal for the simplest bucket model to the largest set of Monte-Carlo model simulations with a multi-dimensional parameter and model output space. By using a web interface, IHM offers the user complete flexibility in the sense that they can be anywhere in the world using any operating system. IHM can be a time saving and money saving alternative to spending time producing graphs or conducting analysis that may not be informative or being forced to purchase or use expensive and proprietary software. IHM is a simple, free, method of interpreting and analyzing batch model results, and is suitable for novice to expert hydrologic modelers.
UR: http://water.ucr.edu/IHM/
DE: 1899 General or miscellaneous
SC: Hydrology [H]
MN: 2003 Fall Meeting