Calibration is the process of adjusting model parameter values to obtain a closer fit between observed and simulated variables. The issue is contentious from two main perspectives. First, some may say that if the model […]
When working either in a geocomputational mode or in complex modeling situations, it is unlikely that the scientist or professional will be working with just a single tool. It is likely instead that several different […]
Any user of GIS and environmental models often has a bewildering choice of algorithms to choose from. Of course, not all competing algorithms are implemented in every software package and, for some proprietary software, information […]
Sensitivity to scale and resolution in process models can be viewed slightly differently from the perspective of lumped parameter models and distributed parameter models. In the latter, the problem focuses on appropriate size of the […]
Management refers to the strategies and methods adopted to mitigate against uncertainty in spatial databases and to reduce the uncertainty absorption required of the user (Bedard, 1986; Hunter and Goodchild, 1993; Frank, 2008). Any strategy […]
There is a fundamental tension between natural variation in the real world and the dominant data models of GIS, which focus on mutually exclusive, homogeneous classes of objects with abrupt spatial boundaries. We have also […]
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